Amateur Radio Wiki - User contributions [en]

Nets

2017-03-06T09:52:09Z

TimVK4YEH: /* Australia */

The following is a list of [[directed net|nets]], classified by continent. If you know of some nets in your area, please add them here.

= Australia =

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| Mackay Amateur Radio Association || Mackay || 3.597MHz ||0930z || Monday ||VK4WIM LSB
|-
| Brisbane Amateur Radio Club VHF Net || Brisbane || 147.000MHz FM || 2000UTC+10 || Wednesday || Repeater VK4RBN, Net control: Don (VK4DS as VK4BA)
|-
| Bunya Mountains and District Amcom ||Bunya Mountains || 3.650Mhz ||0930z || Sunday || VK4BAD
|-
| Rockhampton and District Amateur Radio Club RADAR || Rockhampton ||3.613Mhz ||0930z || VK4WIR
|-
| Bayside District Amateur Radio Society || Cleveland || 3.570Mhz || 0930z || VK4BAR
|-
| Ipswich Net || Ipswich || 146.900MHz FM, 438.375MHz FM (91.5Hz CTCSS) || 0800UTC+10 || Daily || Repeaters VK4RAI and VK4RWM, Net control: John (VK4IE)
|-
| Ipswich "Feather Duster" Net || Ipswich || 146.900MHz FM, 438.375MHz FM (91.5Hz CTCSS) || 1930UTC+10 || Tuesday || Repeater VK4RAI, 146.900MHz FM and VK4RWM, 438.375MHz FM (91.5Hz CTCSS)
|-
| Albury-Wodonga ARC 'Little Desert net' || Murray River || 3.555 MHz LSB || 2030 AEST (UTC+10) || Wednesday || Net control: VK2EWC
|-
| Albury Wodonga net || || 7.085 LSB || 2200 UTC || daily || Net control: VK3MRH
|-
| Ballarat BARG net || Ballarat Vic and Tas|| 3.608 MHz LSB ||2000 AEST (UTC+10) || Thursday || Net control: VK3BML
|-
| Caboolture Radio Club Net(s) || Caboolture|| 146.626MHz FM ||1945 AEST (UTC+10) || Monday || Echolink node 314599
|-
| Caboolture Radio Club Net(s) || Caboolture || 3.610MHz LSB || 1930 AEST (UTC+10) || Friday || Net control: VK4QD ||
|-
| Redcliffe Radio Club Net || Redcliffe peninsula || 3.618MHz LSB || 1945UTC+10 || Sunday || Net control: VK4RC||
|-
| Southern Cross Net(1)|| || 14.226.5 ||1100 UTC || every day|| VK4AAR ||
|-
| Southern Cross Net (2) || || 14.238.5 || 1230 UTC || every day || VK6ZAI ||
|-
| Travellers Net (1) || || 21.185 || 0100 UTC || every day|| ||
|-
| Travellers Net(2)|| || 14.116 || 0300 || every day|| ||
|-
| ANZA DX Net (1)|| || 21.205 || 0415 UTC|| Saturday || ||
|-
| ANZA DX Net (2)|| || 14.183 || 0515 UTC || Every day except Tuesday ? || anzadxnet.webs.com ||
|-
| Kandos Group || ? National || 7.093 lsb || 0600 UTC || weekdays || Net control: VK2ARK ||
|-
| Garam Masala net || ? National || 7.060 lsb || 0500 UTC || weekdays || Net control: VK1CJ ||
|-
| 7.130 DX net|| National+DX || 7.130 lsb || 0930 UTC || Monday, Wednesday, and Friday || ||
|-
| ANARS (1) || || 14.160 usb || 0630 || every day || ||
|-
| ANARS (2) || || 7.075 || 0700 || every day || ||
|-
| Sewing Circle net || Tasmania || 3.590 || 1700 AEST || every day || may QSY to 7.120 +/- QRM in summer meetthevoice.org/the-sewing-circle-net ||
|-
| Barefoot Net || || 7.170 LSB || 0500 UTC || every day || Net control: VK3VIN ||
|-
| Health and Welfare net|| || 14.315|| 0800|| every day|| ||
|-
| ANARS (3)|| || 3.532 CW || 0930 || every day || ||
|-
| CW net (slow)|| National || 3.598|| 1930 - 2000 || every day || ||
|-
| CW net (fast) || National || 3.598 || 1900 - 1930 || every day || ||
|-
| Gnarly Net || National || 3.600 SSB/CW || 2000 || every day || VK4RAT||
|-
| MWRS earlybirds Net|| || 3.590 || 2030 || || ||
|-
| MWRS Net|| || 7.199 || 2200 || every day || ||
|-
| Coral Coast net || Central Queensland coast|| 7.060 lsb || 2100 UTC || every day || ||
|-
| Early Bird CW net|| National|| 3.539 lsb || 2100 UTC || not Sunday || welcome newcomers and new CW'ers ||
|-
| Comedy Net || VK and South Pacific || 7.087 || 2040 UTC || every day || || with maritime
|-
| SARC Dawn Patrol || || 3.605 || (2030) || weekdays || 6.30am NSW (VK2) time||
|-
| National ALARA || National || 3.580 || 1030 UTC || Monday|| ||
|-
| SARC net|| || 3.605 || 1030UTC || Monday || ||
|-
| PNG Radio Society|| PNG || 3.568 ssb || 0700 || Monday || ||
|-
| ALARA VK6 || Western Australia VK6 || 3.585 || 1200 UTC|| Monday || ||
|-
| ALARA || National || 14.222 || 0530 UTC || Monday || YL222||
|-
| CHDARC || || 3.609 || 1000 UTC || Monday || ||
|-
| REAST AM Net || Tasmania || 1.840 || 0845 UTC || Tuesday , Wednesday, Thursday || AM/SSB ||
|-
| Morning Coffee Break Net || Melbourne || 1.843 || 1100 AEST || Monday to Saturday || AM ||
|-
| IDRC Net|| || 3.585 || 0930 || Tuesday || VK4WIP ||
|-
| BMARC (1)|| || 7.120 || 1000 UTC || Tuesday || November to March ||
|-
| BMARC (2) || || 3.543 || 1000 UTC || Tuesday || April to October ||
|-
| CW training || || 28.600 || 1000 || Tuesday || ||
|-
| GCARSI || Gold Coast VK4 || 3.605 lsb || 0930 || Wednesday || VK4WIG ||
|-
| Mid South Coast ARG Lyrebird Net || || 3.617 || 0930UTC || Wednesday || VK2HQ ||
|-
| Mid South Coast 40m. net || || 7.065 || 1905 UTC || Monday, Wednesday, Friday || Net control: VK2NJP ||
|-
| ANARS ZL Net || || 3.620 || 0800 UTC || Wednesday || ||
|-
| ANARS (4)|| || 3.620 ssb|| 0930 UTC || Wednesday || ||
|-
| Shepparton & district ARC || VK3 || 3.620 LSB || 1900 AEST || Wednesday || ||
|-
| SCARG (1) || Gold Coast VK4 || 28.470 usb || 1015 UTC || Wednesday || VK4WIF ||
|-
| SCARG Liason Net || Gold Coast VK4 || 3.605 || 0930 UTC || Thursday || VK4WIF ||
|-
| Hervey Bay ARC || || 3.615 || 0930 || Thursday || ||
|-
| CHARC Tassie devil and trout Net || Tasmania || 3.585 || 1000 UTC || Thursday || ||
|-
| CHARC Tas. Quiz net || || 3.585 || 1030 UTC || Thursday || ||
|-
| RDRC 11CB net || || 27.205 || 1000 UTC || Thursday || ||
|-
| Bendigo net || || 3.655 LSB || 1000 UTC || Thursday || VK3CMZ ..1030 during daylight saving ||
|-
| Tablelands Radio & Electronics Club "TREC Memorial Net" || far north Qld || 3.588 || 0930 || Thursday || Net Control: Roster system. www.treclub.org.au
|-
| Australia Wide Night Owl Insomnia Net (AWNOI) || Australia-wide || 3.600MHz LSB || 1200UTC || Friday || Net control: Danny (VK4SD), Terry (VK2MTW), Now available as a [http://stuartl.longlandclan.yi.org/blog/category/amateur-radio/awnoi-net/ podcast]
|-
| Lockyer Vally Radio Club Net || || 3.569 || 0930UTC || Friday || ||
|-
| VK4WCH weekly net || || 3.618 || 1000 UTC || Friday || VK4WCH ||
|-
| Bottle shop Net || national || 3.590 || 1000 UTC || Friday || Net control: VK3MBW ||
|-
| Friendship Net || || 3.590 || 2100 UTC || Friday || ||
|-
| SCARG (2) || Gold Coast VK4 || 53.700 || 2130 UTC || Friday || ||
|-
| DDRC (1) || Darling Downs VK4 || 3.5875 || 0930 UTC || Saturday || VK4WID ||
|-
| DDRC (2) || Darling Downs VK4 || 146.750 || 0000 UTC || Sunday || VK4WID via VK4RDD repeater ||
|-
| Stone the crows net (Westlakes) || VK2 || 3.588 || 0600 AEST || Saturday || Net control: VK2UI ||
|-
| Riverland RC net || VK5 || 3.578 || 1030 UTC || Tues || VK5BRL ||
|-
| Riverland RC net || VK5 || 7.078 || 2300 UTC || Wed. and Saturday || ||
|-
| VK5 Hybrid Radio net || || 7.064 || 0600 UTC || Sunday || ||
|-
| RDRC || redlands VK4 || 3.618 || 1030 UTC || Sunday || ||
|-
| G&SHARS || || 3.615 || 1030 UTC || Sunday || ||
|-
| Historical Radio Net || || 3.575 LSB || 2030 AEST || Sunday || ||
|-
| ALARA YL (1)|| National || 14.288 || hourly || || Activity Day, 6th of each month ||
|-
| ALARA YL (2) || National || 21.188 || hourly || || Activity Day, 6th of each month ||
|-
| ALARA (3) || National || 28.588 || Hourly || || Activity Day, 6th of each month ||
|-
| AMSAT-VK || National || 7.068 || 0900 || || unofficial 2nd Sunday November to March ||
|-
| ALARA birthday net || National || 3.588 || 1000 || || 4th July ||

|}

Completed merge from Nets Table (now deleted) Dec 18 2010, comments in the [[Talk:Nets]] page,

= North Atlantic =

Those are maritime nets.

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| [http://www.waterwayradio.net/ Waterway Radio & Cruising Club] || E Seaboard, Bahamas, Gulf of Mexico || 7.268Mhz LSB || 1245UTC (winter, -1 during summer) || Saturday & Sunday (general traffic), wednesday (landcruisers), thursday (winlink), friday (computer net) || Net Manager: KN4IG
|-
| [http://users.isp.com/kv4jc/ Caribbean Maritime Mobile] || Caribbean Sea, Southwest North Atlantic|| 7.241Mhz LSB || 1100UTC || Daily || ''not operational as of november 12 2010, according to NP2B'' Net Manager: KV4JC ||
|-
| [http://www.mmsn.org/ Maritime Mobile Service Network] || North atlantic? || 14.300Mhz USB ||1200EST to 2200EST || Daily || See also [http://14300.net/ 14300 networks]
|-
| [http://www.interconnet.org/ Intercon net] || Continental US || 14.300Mhz USB || ? || ? || Not really marine, but shares the same frequency, see [http://14300.net/ 14300 networks]
|}

= North America (continental) =

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| [http://tpn7055.ca/ TPN - Trans Provincial Net] || Canada || 7.055Mhz LSB (phone or CW) || 1200UTC - 2200UTC || Daily || meet your friends from Newfoundland to Victoria, the United States & beyond
|-
| [http://www.ontars.net ONTARS - Ontario Amateur Radio Service] || Ontario || 3.755 MHz LSB || 1200UTC - 2200UTC || Daily || Net Manager: VE3ISX Barry
|-
| [http://www.arrl.org/nts/ National Traffic System (NTS)] || USA || ? || ? || ? || ?
|-
| [http://www.hamforkids.com Northern California Kids Net] || California || 146.910 MHz - 88.5 PL || 1900 local || Saturday || Net Control: KI6ZON
|-
| [http://www.qsl.net/k6bsc/ Coachella Valley Amateur Radio Club] || Coachella Valley and southern Mojave Desert, Southern California || 145.200 MHz - 131.8 PL || 1900 local || Thursday || Net Manager: Maureen K6BSC
|-
| [http://desertrats.am/ Desert Radio Amateur Transmitting Society (Desert RATS)] || Coachella Valley and southern Mojave Desert, Southern California || 146.940 MHz - 107.2 PL || 1830 local for Amateur Radio Newsline; 1900 local net || Monday || Net Control: Bob KO6TZ
|-
| [http://www.condor-connection.org/index/net.html The Condor Connection] || Arizona, California || [http://www.condor-connection.org/listing/listing.html List of 1.4 cm repeater frequencies by area] || 1900 local || Monday || Net control on a rotational basis
|-
| [http://www.papasys.com/ PAPA System] || IRLP serving Southern and Central California || Analog and D-STAR supported || [http://papasys.com/index.php?pageid=Nets List of net frequencies and times] || Times and days vary || Saturday 2000 local analog net control: Cliff, KJ6CDA
|}

= Other listings =

* [http://www.mayaparadise.com/mmfreq1.asp May paradise]
* [http://www.w8vp.org/HFNET_LIST.html W8VP]
* [http://www.ac6v.com/nets.htm AC6V]
* [http://www.onpassage.com/Communications/Cruiser_Nets.htm Cruiser nets]
* [http://www3.nbnet.nb.ca/ve9nd/hfnet.htm VE9ND]
* [http://www.callipygia600.com/callnugget/allcruising/nets.htm Marine Radio Nets & Broadcasts]
* [http://www.rac.ca/en/amateur-radio/operating-technical/nets/ RAC] (Canada)
* [http://www.cruiser.co.za/radionet.asp Marine and amateur radio nets] (dead link)
* [http://www.arrl.org/arrl-net-directory-search ARRL net directory search]

{{operation}}

Nets

2016-10-23T03:20:50Z

TimVK4YEH: /* Australia */

The following is a list of [[directed net|nets]], classified by continent. If you know of some nets in your area, please add them here.

= Australia =

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| Mackay Amateur Radio Association || Mackay || 3.957MHz ||0930z || Monday ||VK4WIM
|-
| Brisbane Amateur Radio Club VHF Net || Brisbane || 147.000MHz FM || 2000UTC+10 || Wednesday || Repeater VK4RBN, Net control: Don (VK4DS as VK4BA)
|-
| Bunya Mountains and District Amcom ||Bunya Mountains || 3.650Mhz ||0930z || Sunday || VK4BAD
|-
| Rockhampton and District Amateur Radio Club RADAR || Rockhampton ||3.613Mhz ||0930z || VK4WIR
|-
| Bayside District Amateur Radio Society || Cleveland || 3.570Mhz || 0930z || VK4BAR
|-
| Ipswich Net || Ipswich || 146.900MHz FM, 438.375MHz FM (91.5Hz CTCSS) || 0800UTC+10 || Daily || Repeaters VK4RAI and VK4RWM, Net control: John (VK4IE)
|-
| Ipswich "Feather Duster" Net || Ipswich || 146.900MHz FM, 438.375MHz FM (91.5Hz CTCSS) || 1930UTC+10 || Tuesday || Repeater VK4RAI, 146.900MHz FM and VK4RWM, 438.375MHz FM (91.5Hz CTCSS)
|-
| Albury-Wodonga ARC 'Little Desert net' || Murray River || 3.555 MHz LSB || 2030 AEST (UTC+10) || Wednesday || Net control: VK2EWC
|-
| Albury Wodonga net || || 7.085 LSB || 2200 UTC || daily || Net control: VK3MRH
|-
| Ballarat BARG net || Ballarat Vic and Tas|| 3.608 MHz LSB ||2000 AEST (UTC+10) || Thursday || Net control: VK3BML
|-
| Caboolture Radio Club Net(s) || Caboolture|| 146.626MHz FM ||1945 AEST (UTC+10) || Monday || Echolink node 314599
|-
| Caboolture Radio Club Net(s) || Caboolture || 3.610MHz LSB || 1930 AEST (UTC+10) || Friday || Net control: VK4QD ||
|-
| Redcliffe Radio Club Net || Redcliffe peninsula || 3.618MHz LSB || 1945UTC+10 || Sunday || Net control: VK4RC||
|-
| Southern Cross Net(1)|| || 14.226.5 ||1100 UTC || every day|| VK4AAR ||
|-
| Southern Cross Net (2) || || 14.238.5 || 1230 UTC || every day || VK6ZAI ||
|-
| Travellers Net (1) || || 21.185 || 0100 UTC || every day|| ||
|-
| Travellers Net(2)|| || 14.116 || 0300 || every day|| ||
|-
| ANZA DX Net (1)|| || 21.205 || 0415 UTC|| Saturday || ||
|-
| ANZA DX Net (2)|| || 14.183 || 0515 UTC || Every day except Tuesday ? || anzadxnet.webs.com ||
|-
| Kandos Group || ? National || 7.093 lsb || 0600 UTC || weekdays || Net control: VK2ARK ||
|-
| Garam Masala net || ? National || 7.060 lsb || 0500 UTC || weekdays || Net control: VK1CJ ||
|-
| 7.130 DX net|| National+DX || 7.130 lsb || 0930 UTC || Monday, Wednesday, and Friday || ||
|-
| ANARS (1) || || 14.160 usb || 0630 || every day || ||
|-
| ANARS (2) || || 7.075 || 0700 || every day || ||
|-
| Sewing circle net || Tasmania || 3.590 || 1700 AEST || Not Sunday || may QSY to 7.120 during daylight savings ||
|-
| Barefoot Net || || 7.170 LSB || 0500 UTC || every day || Net control: VK3VIN ||
|-
| Health and Welfare net|| || 14.315|| 0800|| every day|| ||
|-
| ANARS (3)|| || 3.532 CW || 0930 || every day || ||
|-
| CW net (slow)|| National || 3.598|| 1930 - 2000 || every day || ||
|-
| CW net (fast) || National || 3.598 || 1900 - 1930 || every day || ||
|-
| Gnarly Net || National || 3.600 SSB/CW || 2000 || every day || VK4RAT||
|-
| MWRS earlybirds Net|| || 3.590 || 2030 || || ||
|-
| MWRS Net|| || 7.199 || 2200 || every day || ||
|-
| Coral Coast net || Central Queensland coast|| 7.060 lsb || 2100 UTC || every day || ||
|-
| Early Bird CW net|| National|| 3.539 lsb || 2100 UTC || not Sunday || welcome newcomers and new CW'ers ||
|-
| Comedy Net || VK and South Pacific || 7.087 || 2040 UTC || every day || || with maritime
|-
| SARC Dawn Patrol || || 3.605 || (2030) || weekdays || 6.30am NSW (VK2) time||
|-
| National ALARA || National || 3.580 || 1030 UTC || Monday|| ||
|-
| SARC net|| || 3.605 || 1030UTC || Monday || ||
|-
| PNG Radio Society|| PNG || 3.568 ssb || 0700 || Monday || ||
|-
| ALARA VK6 || Western Australia VK6 || 3.585 || 1200 UTC|| Monday || ||
|-
| ALARA || National || 14.222 || 0530 UTC || Monday || YL222||
|-
| CHDARC || || 3.609 || 1000 UTC || Monday || ||
|-
| REAST AM Net || Tasmania || 1.840 || 0845 UTC || Tuesday , Wednesday, Thursday || AM/SSB ||
|-
| Morning Coffee Break Net || Melbourne || 1.843 || 1100 AEST || Monday to Saturday || AM ||
|-
| IDRC Net|| || 3.585 || 0930 || Tuesday || VK4WIP ||
|-
| BMARC (1)|| || 7.120 || 1000 UTC || Tuesday || November to March ||
|-
| BMARC (2) || || 3.543 || 1000 UTC || Tuesday || April to October ||
|-
| CW training || || 28.600 || 1000 || Tuesday || ||
|-
| GCARSI || Gold Coast VK4 || 3.605 lsb || 0930 || Wednesday || VK4WIG ||
|-
| Mid South Coast ARG Lyrebird Net || || 3.617 || 0930UTC || Wednesday || VK2HQ ||
|-
| Mid South Coast 40m. net || || 7.065 || 1905 UTC || Monday, Wednesday, Friday || Net control: VK2NJP ||
|-
| ANARS ZL Net || || 3.620 || 0800 UTC || Wednesday || ||
|-
| ANARS (4)|| || 3.620 ssb|| 0930 UTC || Wednesday || ||
|-
| Shepparton & district ARC || VK3 || 3.620 LSB || 1900 AEST || Wednesday || ||
|-
| SCARG (1) || Gold Coast VK4 || 28.470 usb || 1015 UTC || Wednesday || VK4WIF ||
|-
| SCARG Liason Net || Gold Coast VK4 || 3.605 || 0930 UTC || Thursday || VK4WIF ||
|-
| Hervey Bay ARC || || 3.615 || 0930 || Thursday || ||
|-
| CHARC Tassie devil and trout Net || Tasmania || 3.585 || 1000 UTC || Thursday || ||
|-
| CHARC Tas. Quiz net || || 3.585 || 1030 UTC || Thursday || ||
|-
| RDRC 11CB net || || 27.205 || 1000 UTC || Thursday || ||
|-
| Bendigo net || || 3.655 LSB || 1000 UTC || Thursday || VK3CMZ ..1030 during daylight saving ||
|-
| Tablelands Radio & Electronics Club "TREC Memorial Net" || far north Qld || 3.588 || 0930 || Thursday || Net Control: Roster system. www.treclub.org.au
|-
| Australia Wide Night Owl Insomnia Net (AWNOI) || Australia-wide || 3.600MHz LSB || 1200UTC || Friday || Net control: Danny (VK4SD), Terry (VK2MTW), Now available as a [http://stuartl.longlandclan.yi.org/blog/category/amateur-radio/awnoi-net/ podcast]
|-
| Lockyer Vally Radio Club Net || || 3.569 || 0930UTC || Friday || ||
|-
| VK4WCH weekly net || || 3.618 || 1000 UTC || Friday || VK4WCH ||
|-
| Bottle shop Net || national || 3.590 || 1000 UTC || Friday || Net control: VK3MBW ||
|-
| Friendship Net || || 3.590 || 2100 UTC || Friday || ||
|-
| SCARG (2) || Gold Coast VK4 || 53.700 || 2130 UTC || Friday || ||
|-
| DDRC (1) || Darling Downs VK4 || 3.5875 || 0930 UTC || Saturday || VK4WID ||
|-
| DDRC (2) || Darling Downs VK4 || 146.750 || 0000 UTC || Sunday || VK4WID via VK4RDD repeater ||
|-
| Stone the crows net (Westlakes) || VK2 || 3.588 || 0600 AEST || Saturday || Net control: VK2UI ||
|-
| Riverland RC net || VK5 || 3.578 || 1030 UTC || Tues || VK5BRL ||
|-
| Riverland RC net || VK5 || 7.078 || 2300 UTC || Wed. and Saturday || ||
|-
| VK5 Hybrid Radio net || || 7.064 || 0600 UTC || Sunday || ||
|-
| RDRC || redlands VK4 || 3.618 || 1030 UTC || Sunday || ||
|-
| G&SHARS || || 3.615 || 1030 UTC || Sunday || ||
|-
| Historical Radio Net || || 3.575 LSB || 2030 AEST || Sunday || ||
|-
| ALARA YL (1)|| National || 14.288 || hourly || || Activity Day, 6th of each month ||
|-
| ALARA YL (2) || National || 21.188 || hourly || || Activity Day, 6th of each month ||
|-
| ALARA (3) || National || 28.588 || Hourly || || Activity Day, 6th of each month ||
|-
| AMSAT-VK || National || 7.068 || 0900 || || unofficial 2nd Sunday November to March ||
|-
| ALARA birthday net || National || 3.588 || 1000 || || 4th July ||

|}

Completed merge from Nets Table (now deleted) Dec 18 2010, comments in the [[Talk:Nets]] page,

= North Atlantic =

Those are maritime nets.

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| [http://www.waterwayradio.net/ Waterway Radio & Cruising Club] || E Seaboard, Bahamas, Gulf of Mexico || 7.268Mhz LSB || 1245UTC (winter, -1 during summer) || Saturday & Sunday (general traffic), wednesday (landcruisers), thursday (winlink), friday (computer net) || Net Manager: KN4IG
|-
| [http://users.isp.com/kv4jc/ Caribbean Maritime Mobile] || Caribbean Sea, Southwest North Atlantic|| 7.241Mhz LSB || 1100UTC || Daily || ''not operational as of november 12 2010, according to NP2B'' Net Manager: KV4JC ||
|-
| [http://www.mmsn.org/ Maritime Mobile Service Network] || North atlantic? || 14.300Mhz USB ||1200EST to 2200EST || Daily || See also [http://14300.net/ 14300 networks]
|-
| [http://www.interconnet.org/ Intercon net] || Continental US || 14.300Mhz USB || ? || ? || Not really marine, but shares the same frequency, see [http://14300.net/ 14300 networks]
|}

= North America (continental) =

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| [http://tpn7055.ca/ TPN - Trans Provincial Net] || Canada || 7.055Mhz LSB (phone or CW) || 1200UTC - 2200UTC || Daily || meet your friends from Newfoundland to Victoria, the United States & beyond
|-
| [http://www.ontars.net ONTARS - Ontario Amateur Radio Service] || Ontario || 3.755 MHz LSB || 1200UTC - 2200UTC || Daily || Net Manager: VE3ISX Barry
|-
| [http://www.arrl.org/nts/ National Traffic System (NTS)] || USA || ? || ? || ? || ?
|-
| [http://www.hamforkids.com Northern California Kids Net] || California || 146.910 MHz - 88.5 PL || 1900 local || Saturday || Net Control: KI6ZON
|-
| [http://www.qsl.net/k6bsc/ Coachella Valley Amateur Radio Club] || Coachella Valley and southern Mojave Desert, Southern California || 145.200 MHz - 131.8 PL || 1900 local || Thursday || Net Manager: Maureen K6BSC
|-
| [http://desertrats.am/ Desert Radio Amateur Transmitting Society (Desert RATS)] || Coachella Valley and southern Mojave Desert, Southern California || 146.940 MHz - 107.2 PL || 1830 local for Amateur Radio Newsline; 1900 local net || Monday || Net Control: Bob KO6TZ
|-
| [http://www.condor-connection.org/index/net.html The Condor Connection] || Arizona, California || [http://www.condor-connection.org/listing/listing.html List of 1.4 cm repeater frequencies by area] || 1900 local || Monday || Net control on a rotational basis
|-
| [http://www.papasys.com/ PAPA System] || IRLP serving Southern and Central California || Analog and D-STAR supported || [http://papasys.com/index.php?pageid=Nets List of net frequencies and times] || Times and days vary || Saturday 2000 local analog net control: Cliff, KJ6CDA
|}

= Other listings =

* [http://www.mayaparadise.com/mmfreq1.asp May paradise]
* [http://www.w8vp.org/HFNET_LIST.html W8VP]
* [http://www.ac6v.com/nets.htm AC6V]
* [http://www.onpassage.com/Communications/Cruiser_Nets.htm Cruiser nets]
* [http://www3.nbnet.nb.ca/ve9nd/hfnet.htm VE9ND]
* [http://www.callipygia600.com/callnugget/allcruising/nets.htm Marine Radio Nets & Broadcasts]
* [http://www.rac.ca/en/amateur-radio/operating-technical/nets/ RAC] (Canada)
* [http://www.cruiser.co.za/radionet.asp Marine and amateur radio nets] (dead link)
* [http://www.arrl.org/arrl-net-directory-search ARRL net directory search]

{{operation}}

Nets

2016-10-05T20:24:32Z

TimVK4YEH: /* Australia */

The following is a list of [[directed net|nets]], classified by continent. If you know of some nets in your area, please add them here.

= Australia =

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| Brisbane Amateur Radio Club VHF Net || Brisbane || 147.000MHz FM || 2000UTC+10 || Wednesday || Repeater VK4RBN, Net control: Don (VK4DS as VK4BA)
|-
| Bunya Mountains and District Amcom ||Bunya Mountains || 3.650Mhz ||0930z || Sunday || VK4BAD
|-
| Rockhampton and District Amateur Radio Club RADAR || Rockhampton ||3.613Mhz ||0930z || VK4WIR
|-
| Bayside District Amateur Radio Society || Cleveland || 3.570Mhz || 0930z || VK4BAR
|-
| Ipswich Net || Ipswich || 146.900MHz FM, 438.375MHz FM (91.5Hz CTCSS) || 0800UTC+10 || Daily || Repeaters VK4RAI and VK4RWM, Net control: John (VK4IE)
|-
| Ipswich "Feather Duster" Net || Ipswich || 146.900MHz FM, 438.375MHz FM (91.5Hz CTCSS) || 1930UTC+10 || Tuesday || Repeater VK4RAI, 146.900MHz FM and VK4RWM, 438.375MHz FM (91.5Hz CTCSS)
|-
| Albury-Wodonga ARC 'Little Desert net' || Murray River || 3.555 MHz LSB || 2030 AEST (UTC+10) || Wednesday || Net control: VK2EWC
|-
| Albury Wodonga net || || 7.085 LSB || 2200 UTC || daily || Net control: VK3MRH
|-
| Ballarat BARG net || Ballarat Vic and Tas|| 3.608 MHz LSB ||2000 AEST (UTC+10) || Thursday || Net control: VK3BML
|-
| Caboolture Radio Club Net(s) || Caboolture|| 146.626MHz FM ||1945 AEST (UTC+10) || Monday || Echolink node 314599
|-
| Caboolture Radio Club Net(s) || Caboolture || 3.610MHz LSB || 1930 AEST (UTC+10) || Friday || Net control: VK4QD ||
|-
| Redcliffe Radio Club Net || Redcliffe peninsula || 3.618MHz LSB || 1945UTC+10 || Sunday || Net control: VK4RC||
|-
| Southern Cross Net(1)|| || 14.226.5 ||1100 UTC || every day|| VK4AAR ||
|-
| Southern Cross Net (2) || || 14.238.5 || 1230 UTC || every day || VK6ZAI ||
|-
| Travellers Net (1) || || 21.185 || 0100 UTC || every day|| ||
|-
| Travellers Net(2)|| || 14.116 || 0300 || every day|| ||
|-
| ANZA DX Net (1)|| || 21.205 || 0415 UTC|| Saturday || ||
|-
| ANZA DX Net (2)|| || 14.183 || 0515 UTC || Every day except Tuesday ? || anzadxnet.webs.com ||
|-
| Kandos Group || ? National || 7.093 lsb || 0600 UTC || weekdays || Net control: VK2ARK ||
|-
| Garam Masala net || ? National || 7.060 lsb || 0500 UTC || weekdays || Net control: VK1CJ ||
|-
| 7.130 DX net|| National+DX || 7.130 lsb || 0930 UTC || Monday, Wednesday, and Friday || ||
|-
| ANARS (1) || || 14.160 usb || 0630 || every day || ||
|-
| ANARS (2) || || 7.075 || 0700 || every day || ||
|-
| Sewing circle net || Tasmania || 3.590 || 1700 AEST || Not Sunday || may QSY to 7.120 during daylight savings ||
|-
| Barefoot Net || || 7.170 LSB || 0500 UTC || every day || Net control: VK3VIN ||
|-
| Health and Welfare net|| || 14.315|| 0800|| every day|| ||
|-
| ANARS (3)|| || 3.532 CW || 0930 || every day || ||
|-
| CW net (slow)|| National || 3.598|| 1930 - 2000 || every day || ||
|-
| CW net (fast) || National || 3.598 || 1900 - 1930 || every day || ||
|-
| Gnarly Net || National || 3.600 SSB/CW || 2000 || every day || VK4RAT||
|-
| MWRS earlybirds Net|| || 3.590 || 2030 || || ||
|-
| MWRS Net|| || 7.199 || 2200 || every day || ||
|-
| Coral Coast net || Central Queensland coast|| 7.060 lsb || 2100 UTC || every day || ||
|-
| Early Bird CW net|| National|| 3.539 lsb || 2100 UTC || not Sunday || welcome newcomers and new CW'ers ||
|-
| Comedy Net || VK and South Pacific || 7.087 || 2040 UTC || every day || || with maritime
|-
| SARC Dawn Patrol || || 3.605 || (2030) || weekdays || 6.30am NSW (VK2) time||
|-
| National ALARA || National || 3.580 || 1030 UTC || Monday|| ||
|-
| SARC net|| || 3.605 || 1030UTC || Monday || ||
|-
| PNG Radio Society|| PNG || 3.568 ssb || 0700 || Monday || ||
|-
| ALARA VK6 || Western Australia VK6 || 3.585 || 1200 UTC|| Monday || ||
|-
| ALARA || National || 14.222 || 0530 UTC || Monday || YL222||
|-
| CHDARC || || 3.609 || 1000 UTC || Monday || ||
|-
| REAST AM Net || Tasmania || 1.840 || 0845 UTC || Tuesday , Wednesday, Thursday || AM/SSB ||
|-
| Morning Coffee Break Net || Melbourne || 1.843 || 1100 AEST || Monday to Saturday || AM ||
|-
| IDRC Net|| || 3.585 || 0930 || Tuesday || VK4WIP ||
|-
| BMARC (1)|| || 7.120 || 1000 UTC || Tuesday || November to March ||
|-
| BMARC (2) || || 3.543 || 1000 UTC || Tuesday || April to October ||
|-
| CW training || || 28.600 || 1000 || Tuesday || ||
|-
| GCARSI || Gold Coast VK4 || 3.605 lsb || 0930 || Wednesday || VK4WIG ||
|-
| Mid South Coast ARG Lyrebird Net || || 3.617 || 0930UTC || Wednesday || VK2HQ ||
|-
| Mid South Coast 40m. net || || 7.065 || 1905 UTC || Monday, Wednesday, Friday || Net control: VK2NJP ||
|-
| ANARS ZL Net || || 3.620 || 0800 UTC || Wednesday || ||
|-
| ANARS (4)|| || 3.620 ssb|| 0930 UTC || Wednesday || ||
|-
| Shepparton & district ARC || VK3 || 3.620 LSB || 1900 AEST || Wednesday || ||
|-
| SCARG (1) || Gold Coast VK4 || 28.470 usb || 1015 UTC || Wednesday || VK4WIF ||
|-
| SCARG Liason Net || Gold Coast VK4 || 3.605 || 0930 UTC || Thursday || VK4WIF ||
|-
| Hervey Bay ARC || || 3.615 || 0930 || Thursday || ||
|-
| CHARC Tassie devil and trout Net || Tasmania || 3.585 || 1000 UTC || Thursday || ||
|-
| CHARC Tas. Quiz net || || 3.585 || 1030 UTC || Thursday || ||
|-
| RDRC 11CB net || || 27.205 || 1000 UTC || Thursday || ||
|-
| Bendigo net || || 3.655 LSB || 1000 UTC || Thursday || VK3CMZ ..1030 during daylight saving ||
|-
| Tablelands Radio & Electronics Club "TREC Memorial Net" || far north Qld || 3.588 || 0930 || Thursday || Net Control: Roster system. www.treclub.org.au
|-
| Australia Wide Night Owl Insomnia Net (AWNOI) || Australia-wide || 3.600MHz LSB || 1200UTC || Friday || Net control: Danny (VK4SD), Terry (VK2MTW), Now available as a [http://stuartl.longlandclan.yi.org/blog/category/amateur-radio/awnoi-net/ podcast]
|-
| Lockyer Vally Radio Club Net || || 3.569 || 0930UTC || Friday || ||
|-
| VK4WCH weekly net || || 3.618 || 1000 UTC || Friday || VK4WCH ||
|-
| Bottle shop Net || national || 3.590 || 1000 UTC || Friday || Net control: VK3MBW ||
|-
| Friendship Net || || 3.590 || 2100 UTC || Friday || ||
|-
| SCARG (2) || Gold Coast VK4 || 53.700 || 2130 UTC || Friday || ||
|-
| DDRC (1) || Darling Downs VK4 || 3.5875 || 0930 UTC || Saturday || VK4WID ||
|-
| DDRC (2) || Darling Downs VK4 || 146.750 || 0000 UTC || Sunday || VK4WID via VK4RDD repeater ||
|-
| Stone the crows net (Westlakes) || VK2 || 3.588 || 0600 AEST || Saturday || Net control: VK2UI ||
|-
| Riverland RC net || VK5 || 3.578 || 1030 UTC || Tues || VK5BRL ||
|-
| Riverland RC net || VK5 || 7.078 || 2300 UTC || Wed. and Saturday || ||
|-
| VK5 Hybrid Radio net || || 7.064 || 0600 UTC || Sunday || ||
|-
| RDRC || redlands VK4 || 3.618 || 1030 UTC || Sunday || ||
|-
| G&SHARS || || 3.615 || 1030 UTC || Sunday || ||
|-
| Historical Radio Net || || 3.575 LSB || 2030 AEST || Sunday || ||
|-
| ALARA YL (1)|| National || 14.288 || hourly || || Activity Day, 6th of each month ||
|-
| ALARA YL (2) || National || 21.188 || hourly || || Activity Day, 6th of each month ||
|-
| ALARA (3) || National || 28.588 || Hourly || || Activity Day, 6th of each month ||
|-
| AMSAT-VK || National || 7.068 || 0900 || || unofficial 2nd Sunday November to March ||
|-
| ALARA birthday net || National || 3.588 || 1000 || || 4th July ||

|}

Completed merge from Nets Table (now deleted) Dec 18 2010, comments in the [[Talk:Nets]] page,

= North Atlantic =

Those are maritime nets.

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| [http://www.waterwayradio.net/ Waterway Radio & Cruising Club] || E Seaboard, Bahamas, Gulf of Mexico || 7.268Mhz LSB || 1245UTC (winter, -1 during summer) || Saturday & Sunday (general traffic), wednesday (landcruisers), thursday (winlink), friday (computer net) || Net Manager: KN4IG
|-
| [http://users.isp.com/kv4jc/ Caribbean Maritime Mobile] || Caribbean Sea, Southwest North Atlantic|| 7.241Mhz LSB || 1100UTC || Daily || ''not operational as of november 12 2010, according to NP2B'' Net Manager: KV4JC ||
|-
| [http://www.mmsn.org/ Maritime Mobile Service Network] || North atlantic? || 14.300Mhz USB ||1200EST to 2200EST || Daily || See also [http://14300.net/ 14300 networks]
|-
| [http://www.interconnet.org/ Intercon net] || Continental US || 14.300Mhz USB || ? || ? || Not really marine, but shares the same frequency, see [http://14300.net/ 14300 networks]
|}

= North America (continental) =

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| [http://tpn7055.ca/ TPN - Trans Provincial Net] || Canada || 7.055Mhz LSB (phone or CW) || 1200UTC - 2200UTC || Daily || meet your friends from Newfoundland to Victoria, the United States & beyond
|-
| [http://www.ontars.net ONTARS - Ontario Amateur Radio Service] || Ontario || 3.755 MHz LSB || 1200UTC - 2200UTC || Daily || Net Manager: VE3ISX Barry
|-
| [http://www.arrl.org/nts/ National Traffic System (NTS)] || USA || ? || ? || ? || ?
|-
| [http://www.hamforkids.com Northern California Kids Net] || California || 146.910 MHz - 88.5 PL || 1900 local || Saturday || Net Control: KI6ZON
|-
| [http://www.qsl.net/k6bsc/ Coachella Valley Amateur Radio Club] || Coachella Valley and southern Mojave Desert, Southern California || 145.200 MHz - 131.8 PL || 1900 local || Thursday || Net Manager: Maureen K6BSC
|-
| [http://desertrats.am/ Desert Radio Amateur Transmitting Society (Desert RATS)] || Coachella Valley and southern Mojave Desert, Southern California || 146.940 MHz - 107.2 PL || 1830 local for Amateur Radio Newsline; 1900 local net || Monday || Net Control: Bob KO6TZ
|-
| [http://www.condor-connection.org/index/net.html The Condor Connection] || Arizona, California || [http://www.condor-connection.org/listing/listing.html List of 1.4 cm repeater frequencies by area] || 1900 local || Monday || Net control on a rotational basis
|-
| [http://www.papasys.com/ PAPA System] || IRLP serving Southern and Central California || Analog and D-STAR supported || [http://papasys.com/index.php?pageid=Nets List of net frequencies and times] || Times and days vary || Saturday 2000 local analog net control: Cliff, KJ6CDA
|}

= Other listings =

* [http://www.mayaparadise.com/mmfreq1.asp May paradise]
* [http://www.w8vp.org/HFNET_LIST.html W8VP]
* [http://www.ac6v.com/nets.htm AC6V]
* [http://www.onpassage.com/Communications/Cruiser_Nets.htm Cruiser nets]
* [http://www3.nbnet.nb.ca/ve9nd/hfnet.htm VE9ND]
* [http://www.callipygia600.com/callnugget/allcruising/nets.htm Marine Radio Nets & Broadcasts]
* [http://www.rac.ca/en/amateur-radio/operating-technical/nets/ RAC] (Canada)
* [http://www.cruiser.co.za/radionet.asp Marine and amateur radio nets] (dead link)
* [http://www.arrl.org/arrl-net-directory-search ARRL net directory search]

{{operation}}

Nets

2016-10-03T05:22:44Z

TimVK4YEH: /* Australia */

The following is a list of [[directed net|nets]], classified by continent. If you know of some nets in your area, please add them here.

= Australia =

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| Brisbane Amateur Radio Club VHF Net || Brisbane || 147.000MHz FM || 2000UTC+10 || Wednesday || Repeater VK4RBN, Net control: Don (VK4DS as VK4BA)
|-
| Ipswich Net || Ipswich || 146.900MHz FM, 438.375MHz FM (91.5Hz CTCSS) || 0800UTC+10 || Daily || Repeaters VK4RAI and VK4RWM, Net control: John (VK4IE)
|-
| Ipswich "Feather Duster" Net || Ipswich || 146.900MHz FM, 438.375MHz FM (91.5Hz CTCSS) || 1930UTC+10 || Tuesday || Repeater VK4RAI, 146.900MHz FM and VK4RWM, 438.375MHz FM (91.5Hz CTCSS)
|-
| Albury-Wodonga ARC 'Little Desert net' || Murray River || 3.555 MHz LSB || 2030 AEST (UTC+10) || Wednesday || Net control: VK2EWC
|-
| Albury Wodonga net || || 7.085 LSB || 2200 UTC || daily || Net control: VK3MRH
|-
| Ballarat BARG net || Ballarat Vic and Tas|| 3.608 MHz LSB ||2000 AEST (UTC+10) || Thursday || Net control: VK3BML
|-
| Caboolture Radio Club Net(s) || Caboolture|| 146.626MHz FM ||1945 AEST (UTC+10) || Monday || Echolink node 314599
|-
| Caboolture Radio Club Net(s) || Caboolture || 3.610MHz LSB || 1930 AEST (UTC+10) || Friday || Net control: VK4QD ||
|-
| Redcliffe Radio Club Net || Redcliffe peninsula || 3.618MHz LSB || 1945UTC+10 || Sunday || Net control: VK4RC||
|-
| Southern Cross Net(1)|| || 14.226.5 ||1100 UTC || every day|| VK4AAR ||
|-
| Southern Cross Net (2) || || 14.238.5 || 1230 UTC || every day || VK6ZAI ||
|-
| Travellers Net (1) || || 21.185 || 0100 UTC || every day|| ||
|-
| Travellers Net(2)|| || 14.116 || 0300 || every day|| ||
|-
| ANZA DX Net (1)|| || 21.205 || 0415 UTC|| Saturday || ||
|-
| ANZA DX Net (2)|| || 14.183 || 0515 UTC || Every day except Tuesday ? || anzadxnet.webs.com ||
|-
| Kandos Group || ? National || 7.093 lsb || 0600 UTC || weekdays || Net control: VK2ARK ||
|-
| Garam Masala net || ? National || 7.060 lsb || 0500 UTC || weekdays || Net control: VK1CJ ||
|-
| 7.130 DX net|| National+DX || 7.130 lsb || 0930 UTC || Monday, Wednesday, and Friday || ||
|-
| ANARS (1) || || 14.160 usb || 0630 || every day || ||
|-
| ANARS (2) || || 7.075 || 0700 || every day || ||
|-
| Sewing circle net || Tasmania || 3.590 || 1700 AEST || Not Sunday || may QSY to 7.120 during daylight savings ||
|-
| Barefoot Net || || 7.170 LSB || 0500 UTC || every day || Net control: VK3VIN ||
|-
| Health and Welfare net|| || 14.315|| 0800|| every day|| ||
|-
| ANARS (3)|| || 3.532 CW || 0930 || every day || ||
|-
| CW net (slow)|| National || 3.598|| 1930 - 2000 || every day || ||
|-
| CW net (fast) || National || 3.598 || 1900 - 1930 || every day || ||
|-
| Gnarly Net || National || 3.600 SSB/CW || 2000 || every day || VK4RAT||
|-
| MWRS earlybirds Net|| || 3.590 || 2030 || || ||
|-
| MWRS Net|| || 7.199 || 2200 || every day || ||
|-
| Coral Coast net || Central Queensland coast|| 7.060 lsb || 2100 UTC || every day || ||
|-
| Early Bird CW net|| National|| 3.539 lsb || 2100 UTC || not Sunday || welcome newcomers and new CW'ers ||
|-
| Comedy Net || VK and South Pacific || 7.087 || 2040 UTC || every day || || with maritime
|-
| SARC Dawn Patrol || || 3.605 || (2030) || weekdays || 6.30am NSW (VK2) time||
|-
| National ALARA || National || 3.580 || 1030 UTC || Monday|| ||
|-
| SARC net|| || 3.605 || 1030UTC || Monday || ||
|-
| PNG Radio Society|| PNG || 3.568 ssb || 0700 || Monday || ||
|-
| ALARA VK6 || Western Australia VK6 || 3.585 || 1200 UTC|| Monday || ||
|-
| ALARA || National || 14.222 || 0530 UTC || Monday || YL222||
|-
| CHDARC || || 3.609 || 1000 UTC || Monday || ||
|-
| REAST AM Net || Tasmania || 1.840 || 0845 UTC || Tuesday , Wednesday, Thursday || AM/SSB ||
|-
| Morning Coffee Break Net || Melbourne || 1.843 || 1100 AEST || Monday to Saturday || AM ||
|-
| IDRC Net|| || 3.585 || 0930 || Tuesday || VK4WIP ||
|-
| BMARC (1)|| || 7.120 || 1000 UTC || Tuesday || November to March ||
|-
| BMARC (2) || || 3.543 || 1000 UTC || Tuesday || April to October ||
|-
| CW training || || 28.600 || 1000 || Tuesday || ||
|-
| GCARSI || Gold Coast VK4 || 3.605 lsb || 0930 || Wednesday || VK4WIG ||
|-
| Mid South Coast ARG Lyrebird Net || || 3.617 || 0930UTC || Wednesday || VK2HQ ||
|-
| Mid South Coast 40m. net || || 7.065 || 1905 UTC || Monday, Wednesday, Friday || Net control: VK2NJP ||
|-
| ANARS ZL Net || || 3.620 || 0800 UTC || Wednesday || ||
|-
| ANARS (4)|| || 3.620 ssb|| 0930 UTC || Wednesday || ||
|-
| Shepparton & district ARC || VK3 || 3.620 LSB || 1900 AEST || Wednesday || ||
|-
| SCARG (1) || Gold Coast VK4 || 28.470 usb || 1015 UTC || Wednesday || VK4WIF ||
|-
| SCARG Liason Net || Gold Coast VK4 || 3.605 || 0930 UTC || Thursday || VK4WIF ||
|-
| Hervey Bay ARC || || 3.615 || 0930 || Thursday || ||
|-
| CHARC Tassie devil and trout Net || Tasmania || 3.585 || 1000 UTC || Thursday || ||
|-
| CHARC Tas. Quiz net || || 3.585 || 1030 UTC || Thursday || ||
|-
| RDRC 11CB net || || 27.205 || 1000 UTC || Thursday || ||
|-
| Bendigo net || || 3.655 LSB || 1000 UTC || Thursday || VK3CMZ ..1030 during daylight saving ||
|-
| Tablelands Radio & Electronics Club "TREC Memorial Net" || far north Qld || 3.588 || 0930 || Thursday || Net Control: Roster system. www.treclub.org.au
|-
| Australia Wide Night Owl Insomnia Net (AWNOI) || Australia-wide || 3.600MHz LSB || 1200UTC || Friday || Net control: Danny (VK4SD), Terry (VK2MTW), Now available as a [http://stuartl.longlandclan.yi.org/blog/category/amateur-radio/awnoi-net/ podcast]
|-
| Lockyer Vally Radio Club Net || || 3.569 || 0930UTC || Friday || ||
|-
| VK4WCH weekly net || || 3.618 || 1000 UTC || Friday || VK4WCH ||
|-
| Bottle shop Net || national || 3.590 || 1000 UTC || Friday || Net control: VK3MBW ||
|-
| Friendship Net || || 3.590 || 2100 UTC || Friday || ||
|-
| SCARG (2) || Gold Coast VK4 || 53.700 || 2130 UTC || Friday || ||
|-
| DDRC (1) || Darling Downs VK4 || 3.5875 || 0930 UTC || Saturday || VK4WID ||
|-
| DDRC (2) || Darling Downs VK4 || 146.750 || 0000 UTC || Sunday || VK4WID via VK4RDD repeater ||
|-
| Stone the crows net (Westlakes) || VK2 || 3.588 || 0600 AEST || Saturday || Net control: VK2UI ||
|-
| Riverland RC net || VK5 || 3.578 || 1030 UTC || Tues || VK5BRL ||
|-
| Riverland RC net || VK5 || 7.078 || 2300 UTC || Wed. and Saturday || ||
|-
| VK5 Hybrid Radio net || || 7.064 || 0600 UTC || Sunday || ||
|-
| RDRC || redlands VK4 || 3.618 || 1030 UTC || Sunday || ||
|-
| G&SHARS || || 3.615 || 1030 UTC || Sunday || ||
|-
| Historical Radio Net || || 3.575 LSB || 2030 AEST || Sunday || ||
|-
| ALARA YL (1)|| National || 14.288 || hourly || || Activity Day, 6th of each month ||
|-
| ALARA YL (2) || National || 21.188 || hourly || || Activity Day, 6th of each month ||
|-
| ALARA (3) || National || 28.588 || Hourly || || Activity Day, 6th of each month ||
|-
| AMSAT-VK || National || 7.068 || 0900 || || unofficial 2nd Sunday November to March ||
|-
| ALARA birthday net || National || 3.588 || 1000 || || 4th July ||

|}

Completed merge from Nets Table (now deleted) Dec 18 2010, comments in the [[Talk:Nets]] page,

= North Atlantic =

Those are maritime nets.

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| [http://www.waterwayradio.net/ Waterway Radio & Cruising Club] || E Seaboard, Bahamas, Gulf of Mexico || 7.268Mhz LSB || 1245UTC (winter, -1 during summer) || Saturday & Sunday (general traffic), wednesday (landcruisers), thursday (winlink), friday (computer net) || Net Manager: KN4IG
|-
| [http://users.isp.com/kv4jc/ Caribbean Maritime Mobile] || Caribbean Sea, Southwest North Atlantic|| 7.241Mhz LSB || 1100UTC || Daily || ''not operational as of november 12 2010, according to NP2B'' Net Manager: KV4JC ||
|-
| [http://www.mmsn.org/ Maritime Mobile Service Network] || North atlantic? || 14.300Mhz USB ||1200EST to 2200EST || Daily || See also [http://14300.net/ 14300 networks]
|-
| [http://www.interconnet.org/ Intercon net] || Continental US || 14.300Mhz USB || ? || ? || Not really marine, but shares the same frequency, see [http://14300.net/ 14300 networks]
|}

= North America (continental) =

{|class="wikitable sortable"
!Name!!Area!!Frequency!!Time!!Days!!Notes
|-
| [http://tpn7055.ca/ TPN - Trans Provincial Net] || Canada || 7.055Mhz LSB (phone or CW) || 1200UTC - 2200UTC || Daily || meet your friends from Newfoundland to Victoria, the United States & beyond
|-
| [http://www.ontars.net ONTARS - Ontario Amateur Radio Service] || Ontario || 3.755 MHz LSB || 1200UTC - 2200UTC || Daily || Net Manager: VE3ISX Barry
|-
| [http://www.arrl.org/nts/ National Traffic System (NTS)] || USA || ? || ? || ? || ?
|-
| [http://www.hamforkids.com Northern California Kids Net] || California || 146.910 MHz - 88.5 PL || 1900 local || Saturday || Net Control: KI6ZON
|-
| [http://www.qsl.net/k6bsc/ Coachella Valley Amateur Radio Club] || Coachella Valley and southern Mojave Desert, Southern California || 145.200 MHz - 131.8 PL || 1900 local || Thursday || Net Manager: Maureen K6BSC
|-
| [http://desertrats.am/ Desert Radio Amateur Transmitting Society (Desert RATS)] || Coachella Valley and southern Mojave Desert, Southern California || 146.940 MHz - 107.2 PL || 1830 local for Amateur Radio Newsline; 1900 local net || Monday || Net Control: Bob KO6TZ
|-
| [http://www.condor-connection.org/index/net.html The Condor Connection] || Arizona, California || [http://www.condor-connection.org/listing/listing.html List of 1.4 cm repeater frequencies by area] || 1900 local || Monday || Net control on a rotational basis
|-
| [http://www.papasys.com/ PAPA System] || IRLP serving Southern and Central California || Analog and D-STAR supported || [http://papasys.com/index.php?pageid=Nets List of net frequencies and times] || Times and days vary || Saturday 2000 local analog net control: Cliff, KJ6CDA
|}

= Other listings =

* [http://www.mayaparadise.com/mmfreq1.asp May paradise]
* [http://www.w8vp.org/HFNET_LIST.html W8VP]
* [http://www.ac6v.com/nets.htm AC6V]
* [http://www.onpassage.com/Communications/Cruiser_Nets.htm Cruiser nets]
* [http://www3.nbnet.nb.ca/ve9nd/hfnet.htm VE9ND]
* [http://www.callipygia600.com/callnugget/allcruising/nets.htm Marine Radio Nets & Broadcasts]
* [http://www.rac.ca/en/amateur-radio/operating-technical/nets/ RAC] (Canada)
* [http://www.cruiser.co.za/radionet.asp Marine and amateur radio nets] (dead link)
* [http://www.arrl.org/arrl-net-directory-search ARRL net directory search]

{{operation}}

Apps

2011-05-25T02:36:18Z

TimVK4YEH: fixed minor error

'''Ham Radio Apps'''

related wiki pages [[Software]], [[Calculators]], [[Websites]], [[User Groups]]

==Android==

* [http://handheld.softpedia.com/get/GPS/APRSdroid-95543.shtml APRSdroid]
* [https://market.android.com/search?q=ham+radio&so=1&c=apps Android market search]
* [http://www.androlib.com/android.developer.pignology-pBEt.aspx Android apps from N3WG]
* [http://www.androidzoom.com/android_applications/books_and_reference/amateur-radio-callsign-db_bkpw.html Callsign lookup US only?]
* [http://www.hamdroid.com/echolink-finder/ Echolink finder]
* [http://www.androidzoom.com/android_applications/tools/ham_qa.html Ham. Solar and band conditions tool]
* [http://www.androidzoom.com/android_applications/communication/ham-exam_mqrn.html Ham Exam]
* [http://www.androidzoom.com/android_applications/communication/ham-radio_gvph.html Ham Radio - glossary of ham radio terms]
* [http://www.androidzoom.com/android_applications/books_and_reference/ham-radio-study_ezfc.html Ham Radio Study]
* [http://www.androidzoom.com/android_applications/communication/ham-radio-tools_xhui.html Ham Radio Tools]
* [http://www.androidzoom.com/android_applications/education/ham-radio-terminology-amateur_sjhg.html Ham Radio terminology]
* [http://www.androidzoom.com/android_applications/tools/qsl-mobile-ham-radio_rwyq.html QSL Mobile Ham radio]
* [http://sites.google.com/site/hamsatdroid/ HamSatDroid Satellite pass predictor]
* [http://www.hamdroid.com/irlp-finder/ IRLP finder]

==Apple : iPad, iPhone==

Most of these will work on both the iPhone and the iPad. Those specifically written for the iPhone will probably be blurry when expanded to fit the iPad screen. They can be viewed and used on the iPad at iPhone size.

* [http://itunes.apple.com/us/app/antenna-calculator/id370942076?mt=8 Antenna calculator]
* [http://itunes.apple.com/us/app/beaconaid-hf/id307460004?mt=8 Beacon Aid]
* [http://itunes.apple.com/us/app/db-calc/id303470503?mt=8 dB calc]
* [http://itunes.apple.com/ru/app/decode-morse/id330380875?mt=8 Decode morse]
* [http://itunes.apple.com/ru/app/dx-hunter/id397877790?mt=8 DX hunter]
* [http://itunes.apple.com/us/app/echolink/id350688562?mt=8 Echolink for iPad]
* [http://itunes.apple.com/us/app/electronic-toolbox/id339158729?mt=8# Elektor electronic toolbox]
* [http://itunes.apple.com/ru/app/free-morse-code/id331793419?mt=8 free morse code]
* [http://itunes.apple.com/us/app/freq-finder/id333226119?mt=8 Freq Find repeater guide US only]
* [http://itunes.apple.com/ru/app/gosatwatch/id300546718?mt=8 GoSatWatch]
* [http://itunes.apple.com/us/app/ham/id327730462?mt=8 Ham solar conditions etc]
* [http://www.appsafari.com/utilities/2207/ham-callsign-lookup/ Ham call lookup US only]
* [http://itunes.apple.com/us/app/hamclock/id349645947?mt=8 Ham Clock]
* [http://itunes.apple.com/gb/app/ham-dashboard/id397752661?mt=8 Ham Dashboard - UK repeater listing]
* [http://n3wg.com/hamlog/ Hamlog from N3WG]
* [http://itunes.apple.com/ru/app/ham-tool-ft-817/id393961861?mt=8 Ham tool FT-817]
* [http://itunes.apple.com/ru/app/ham-tool-vx-3r/id393959044?mt=8 Ham tool VX3]
* [http://itunes.apple.com/gb/app/ham-tracker/id406552499?mt=8 Ham Tracker - APRS-IS]
* [http://itunes.apple.com/au/app/icluster-the-dx-cluster-database/id334053435?mt=8 iCluster DX cluster database]
* [http://n3wg.com/iRover/ iRover logging app from N3WG]
* [http://itunes.apple.com/us/app/maidenhead-converter/id313870236?mt=8 Maidenhead converter]
* [http://itunes.apple.com/au/app/morse-code-trainer/id325971590?mt=8 Morse code trainer]
* [http://www.vosworx.com/ Satellite tracking apps by Vos-works]
* [http://www.blackcatsystems.com/ham_radio_iPhone_iPad_iPod_Apps.html Various apps from BlackCat systems]

==Pocket PC==

* [http://www.n0hr.com/ 5 pocket PC apps from N0HR]

{{Operation}}

Apps

2011-04-21T21:32:02Z

TimVK4YEH: added more apps

'''Ham Radio Apps'''

related wiki pages [[Software]], [[Calculators]], [[Websites]], [[User Groups]]

==Android==

* [http://handheld.softpedia.com/get/GPS/APRSdroid-95543.shtml APRSdroid]
* [https://market.android.com/search?q=ham+radio&so=1&c=apps Android market search]
* [http://www.androlib.com/android.developer.pignology-pBEt.aspx Android apps from N3WG]
* [http://www.androidzoom.com/android_applications/books_and_reference/amateur-radio-callsign-db_bkpw.html Callsign lookup US only?]
* [http://www.hamdroid.com/echolink-finder/ Echolink finder]
* [http://www.androidzoom.com/android_applications/tools/ham_qa.html Ham. Solar and band conditions tool]
* [http://www.androidzoom.com/android_applications/communication/ham-exam_mqrn.html Ham Exam]
* [http://www.androidzoom.com/android_applications/communication/ham-radio_gvph.html Ham Radio - glossary of ham radio terms]
* [http://www.androidzoom.com/android_applications/books_and_reference/ham-radio-study_ezfc.html Ham Radio Study]
*http://www.androidzoom.com/android_applications/communication/ham-radio-tools_xhui.html Ham Radio Tools]
* [http://www.androidzoom.com/android_applications/education/ham-radio-terminology-amateur_sjhg.html Ham Radio terminology]
* [http://www.androidzoom.com/android_applications/tools/qsl-mobile-ham-radio_rwyq.html QSL Mobile Ham radio]
* [http://sites.google.com/site/hamsatdroid/ HamSatDroid Satellite pass predictor]
* [http://www.hamdroid.com/irlp-finder/ IRLP finder]

==Apple : iPad, iPhone==

Most of these will work on both the iPhone and the iPad. Those specifically written for the iPhone will probably be blurry when expanded to fit the iPad screen. They can be viewed and used on the iPad at iPhone size.

* [http://itunes.apple.com/us/app/antenna-calculator/id370942076?mt=8 Antenna calculator]
* [http://itunes.apple.com/us/app/beaconaid-hf/id307460004?mt=8 Beacon Aid]
* [http://itunes.apple.com/us/app/db-calc/id303470503?mt=8 dB calc]
* [http://itunes.apple.com/ru/app/decode-morse/id330380875?mt=8 Decode morse]
* [http://itunes.apple.com/ru/app/dx-hunter/id397877790?mt=8 DX hunter]
* [http://itunes.apple.com/us/app/echolink/id350688562?mt=8 Echolink for iPad]
* [http://itunes.apple.com/us/app/electronic-toolbox/id339158729?mt=8# Elektor electronic toolbox]
* [http://itunes.apple.com/ru/app/free-morse-code/id331793419?mt=8 free morse code]
* [http://itunes.apple.com/us/app/freq-finder/id333226119?mt=8 Freq Find repeater guide US only]
* [http://itunes.apple.com/ru/app/gosatwatch/id300546718?mt=8 GoSatWatch]
* [http://itunes.apple.com/us/app/ham/id327730462?mt=8 Ham solar conditions etc]
* [http://www.appsafari.com/utilities/2207/ham-callsign-lookup/ Ham call lookup US only]
* [http://itunes.apple.com/us/app/hamclock/id349645947?mt=8 Ham Clock]
* [http://itunes.apple.com/gb/app/ham-dashboard/id397752661?mt=8 Ham Dashboard - UK repeater listing]
* [http://n3wg.com/hamlog/ Hamlog from N3WG]
* [http://itunes.apple.com/ru/app/ham-tool-ft-817/id393961861?mt=8 Ham tool FT-817]
* [http://itunes.apple.com/ru/app/ham-tool-vx-3r/id393959044?mt=8 Ham tool VX3]
* [http://itunes.apple.com/gb/app/ham-tracker/id406552499?mt=8 Ham Tracker - APRS-IS]
* [http://itunes.apple.com/au/app/icluster-the-dx-cluster-database/id334053435?mt=8 iCluster DX cluster database]
* [http://n3wg.com/iRover/ iRover logging app from N3WG]
* [http://itunes.apple.com/us/app/maidenhead-converter/id313870236?mt=8 Maidenhead converter]
* [http://itunes.apple.com/au/app/morse-code-trainer/id325971590?mt=8 Morse code trainer]
* [http://www.vosworx.com/ Satellite tracking apps by Vos-works]
* [http://www.blackcatsystems.com/ham_radio_iPhone_iPad_iPod_Apps.html Various apps from BlackCat systems]

==Pocket PC==

* [http://www.n0hr.com/ 5 pocket PC apps from N0HR]

{{Operation}}

Apps

2011-04-21T20:38:23Z

TimVK4YEH: fixed error

'''Ham Radio Apps'''

related wiki pages [[Software]], [[Calculators]], [[Websites]], [[User Groups]]

==Android==

* [https://market.android.com/search?q=ham+radio&so=1&c=apps Android market search]
* [http://www.androlib.com/android.developer.pignology-pBEt.aspx Android apps from N3WG]
* [http://www.androidzoom.com/android_applications/books_and_reference/amateur-radio-callsign-db_bkpw.html Callsign lookup US only?]
* [http://www.hamdroid.com/echolink-finder/ Echolink finder]
* [http://www.androidzoom.com/android_applications/tools/ham_qa.html Ham. Solar and band conditions tool]
* [http://www.androidzoom.com/android_applications/communication/ham-radio_gvph.html Ham Radio - glossary of ham radio terms]
* [http://www.androidzoom.com/android_applications/education/ham-radio-terminology-amateur_sjhg.html Ham Radio terminology]
* [http://sites.google.com/site/hamsatdroid/ HamSatDroid Satellite pass predictor]
* [http://www.hamdroid.com/irlp-finder/ IRLP finder]

==Apple : iPad, iPhone==

Most of these will work on both the iPhone and the iPad. Those specifically written for the iPhone will probably be blurry when expanded to fit the iPad screen. They can be viewed and used on the iPad at iPhone size.

* [http://itunes.apple.com/us/app/antenna-calculator/id370942076?mt=8 Antenna calculator]
* [http://itunes.apple.com/us/app/beaconaid-hf/id307460004?mt=8 Beacon Aid]
* [http://itunes.apple.com/us/app/db-calc/id303470503?mt=8 dB calc]
* [http://itunes.apple.com/ru/app/decode-morse/id330380875?mt=8 Decode morse]
* [http://itunes.apple.com/ru/app/dx-hunter/id397877790?mt=8 DX hunter]
* [http://itunes.apple.com/us/app/echolink/id350688562?mt=8 Echolink for iPad]
* [http://itunes.apple.com/us/app/electronic-toolbox/id339158729?mt=8# Elektor electronic toolbox]
* [http://itunes.apple.com/ru/app/free-morse-code/id331793419?mt=8 free morse code]
* [http://itunes.apple.com/us/app/freq-finder/id333226119?mt=8 Freq Find repeater guide US only]
* [http://itunes.apple.com/ru/app/gosatwatch/id300546718?mt=8 GoSatWatch]
* [http://itunes.apple.com/us/app/ham/id327730462?mt=8 Ham solar conditions etc]
* [http://www.appsafari.com/utilities/2207/ham-callsign-lookup/ Ham call lookup US only]
* [http://itunes.apple.com/us/app/hamclock/id349645947?mt=8 Ham Clock]
* [http://itunes.apple.com/gb/app/ham-dashboard/id397752661?mt=8 Ham Dashboard - UK repeater listing]
* [http://n3wg.com/hamlog/ Hamlog from N3WG]
* [http://itunes.apple.com/ru/app/ham-tool-ft-817/id393961861?mt=8 Ham tool FT-817]
* [http://itunes.apple.com/ru/app/ham-tool-vx-3r/id393959044?mt=8 Ham tool VX3]
* [http://itunes.apple.com/gb/app/ham-tracker/id406552499?mt=8 Ham Tracker - APRS-IS]
* [http://itunes.apple.com/au/app/icluster-the-dx-cluster-database/id334053435?mt=8 iCluster DX cluster database]
* [http://n3wg.com/iRover/ iRover logging app from N3WG]
* [http://itunes.apple.com/us/app/maidenhead-converter/id313870236?mt=8 Maidenhead converter]
* [http://itunes.apple.com/au/app/morse-code-trainer/id325971590?mt=8 Morse code trainer]
* [http://www.vosworx.com/ Satellite tracking apps by Vos-works]
* [http://www.blackcatsystems.com/ham_radio_iPhone_iPad_iPod_Apps.html Various apps from BlackCat systems]

==Pocket PC==

* [http://www.n0hr.com/ 5 pocket PC apps from N0HR]

{{Operation}}

Apps

2011-04-21T20:37:54Z

TimVK4YEH: added more apps for apple devices

'''Ham Radio Apps'''

related wiki pages [[Software]], [[Calculators]], [[Websites]], [[User Groups]]

==Android==

* [https://market.android.com/search?q=ham+radio&so=1&c=apps Android market search]
* [http://www.androlib.com/android.developer.pignology-pBEt.aspx Android apps from N3WG]
* [http://www.androidzoom.com/android_applications/books_and_reference/amateur-radio-callsign-db_bkpw.html Callsign lookup US only?]
* [http://www.hamdroid.com/echolink-finder/ Echolink finder]
* [http://www.androidzoom.com/android_applications/tools/ham_qa.html Ham. Solar and band conditions tool]
* [http://www.androidzoom.com/android_applications/communication/ham-radio_gvph.html Ham Radio - glossary of ham radio terms]
* [http://www.androidzoom.com/android_applications/education/ham-radio-terminology-amateur_sjhg.html Ham Radio terminology]
* [http://sites.google.com/site/hamsatdroid/ HamSatDroid Satellite pass predictor]
* [http://www.hamdroid.com/irlp-finder/ IRLP finder]

==Apple : iPad, iPhone==

Most of these will work on both the iPhone and the iPad. Those specifically written for the iPhone will probably be blurry when expanded to fit the iPad screen. They can be viewed and used on the iPad at iPhone size.

* [http://itunes.apple.com/us/app/antenna-calculator/id370942076?mt=8 Antenna calculator]
* [http://itunes.apple.com/us/app/beaconaid-hf/id307460004?mt=8 Beacon Aid]
* [http://itunes.apple.com/us/app/db-calc/id303470503?mt=8 dB calc]
* [http://itunes.apple.com/ru/app/decode-morse/id330380875?mt=8 Decode morse]
* [http://itunes.apple.com/ru/app/dx-hunter/id397877790?mt=8 DX hunter]
* [http://itunes.apple.com/us/app/echolink/id350688562?mt=8 Echolink for iPad]
* [http://itunes.apple.com/us/app/electronic-toolbox/id339158729?mt=8# Elektor electronic toolbox]
* [http://itunes.apple.com/ru/app/free-morse-code/id331793419?mt=8 free morse code]
* [http://itunes.apple.com/us/app/freq-finder/id333226119?mt=8 Freq Find repeater guide US only]
* [http://itunes.apple.com/ru/app/gosatwatch/id300546718?mt=8 GoSatWatch]
http://itunes.apple.com/us/app/ham/id327730462?mt=8 Ham solar conditions etc]
* [http://www.appsafari.com/utilities/2207/ham-callsign-lookup/ Ham call lookup US only]
* [http://itunes.apple.com/us/app/hamclock/id349645947?mt=8 Ham Clock]
* [http://itunes.apple.com/gb/app/ham-dashboard/id397752661?mt=8 Ham Dashboard - UK repeater listing]
* [http://n3wg.com/hamlog/ Hamlog from N3WG]
* [http://itunes.apple.com/ru/app/ham-tool-ft-817/id393961861?mt=8 Ham tool FT-817]
* [http://itunes.apple.com/ru/app/ham-tool-vx-3r/id393959044?mt=8 Ham tool VX3]
* [http://itunes.apple.com/gb/app/ham-tracker/id406552499?mt=8 Ham Tracker - APRS-IS]
* [http://itunes.apple.com/au/app/icluster-the-dx-cluster-database/id334053435?mt=8 iCluster DX cluster database]
* [http://n3wg.com/iRover/ iRover logging app from N3WG]
* [http://itunes.apple.com/us/app/maidenhead-converter/id313870236?mt=8 Maidenhead converter]
* [http://itunes.apple.com/au/app/morse-code-trainer/id325971590?mt=8 Morse code trainer]
* [http://www.vosworx.com/ Satellite tracking apps by Vos-works]
* [http://www.blackcatsystems.com/ham_radio_iPhone_iPad_iPod_Apps.html Various apps from BlackCat systems]

==Pocket PC==

* [http://www.n0hr.com/ 5 pocket PC apps from N0HR]

{{Operation}}

Duplexer

2011-04-10T08:36:06Z

TimVK4YEH: added info and links

Copied from [http://en.wikipedia.org/wiki/Duplexer Wikipedia] and modified to suit this site.

A '''duplexer''' is a device that allows bi-directional communication over a single channel, and in ham radio is typically used in repeaters

In radar and radio communications systems, it isolates the receiver from the transmitter while permitting them to share a common antenna. Most radio repeater systems include a duplexer.

Note 1: A duplexer must be designed for operation in the frequency or radio band used by the receiver and transmitter, and must be capable of handling the output power of the transmitter.

Note 2: A duplexer must provide adequate rejection of transmitter noise occurring at the receive frequency, and must be designed to operate at, or less than, the frequency separation between the transmitter and receiver.

Further information about duplexer design can be found here:

* [http://www.repeater-builder.com/rbtip/2mduplexer.html 2m duplexer construction guide]
* [http://www.repeater-builder.com/rbtip/2mduplexer.html Commercial duplexer specifications]
* [http://www.seits.org/duplexer/duplexer.htm Duplexer theory and tune-up]
* [http://www.mhspot.com/radio/duplexer_tuning.htm How to tune a repeater duplexer]

{{apparatus}}

Apparatus

2011-04-10T08:22:31Z

TimVK4YEH: added duplexer

For all manner of ham radio apparatus including the following:

* [[Amplifiers]]
* [[Antennas]]
* [[Antenna Tuners]]
* [[Attenuators]]
* [[Baluns]]
* [[Duplexer]]
* [[Feedlines]]
* [[Keys - Morse]]
* [[Microphones]]
* [[Radio/PC Interfaces]]
* [[Receivers]]
* [[Rotators]]
* [[Towers and Masts]]
* [[Transceivers]]
* [[Vintage Radio]]

== See also ==

* [[Videos]]
* [[User Groups]]
* [[Manufacturers Websites]]
* [[Reviews of ham radio gear]]
* [[Manuals]]
* [[Classifieds]]
* [[Suppliers]]

{{apparatus}}

Amplifiers

2011-04-03T07:22:22Z

TimVK4YEH: some info, internal link

For information about RF amplifiers

Related wiki pages [[Amplifier Design]]

* [http://www.kk5dr.com/ampbuilders.htm Building your own tube type HF amplifier] by Matt KK5DR
* [http://wb0nni.dakotamade.com/basic.html RF amplifier basics] from N3FJP
* [http://www.ab4oj.com/quadra/sshfamp.html What makes a good solid-state amp?] By Adam VA7OJ / AB4OJ
* [http://www.tokyohypower.com/solid_state_amps.html Understanding solid state linear amplifiers] from Tokyo Hy-power labs USA
* [http://www.w6kan.com/ssamp.html 600W solid state amplifier] from K0GKD

{{apparatus}}

Apparatus

2011-04-03T07:09:42Z

TimVK4YEH: amplifiers

For all manner of ham radio apparatus including the following:

* [[Amplifiers]]
* [[Antennas]]
* [[Antenna Tuners]]
* [[Attenuators]]
* [[Baluns]]
* [[Feedlines]]
* [[Keys - Morse]]
* [[Microphones]]
* [[Radio/PC Interfaces]]
* [[Receivers]]
* [[Rotators]]
* [[Towers and Masts]]
* [[Transceivers]]
* [[Vintage Radio]]

== See also ==

* [[Videos]]
* [[User Groups]]
* [[Manufacturers Websites]]
* [[Reviews of ham radio gear]]
* [[Manuals]]
* [[Classifieds]]
* [[Suppliers]]

{{apparatus}}

Dictionary of Ham Radio Terms

2011-04-02T08:54:53Z

TimVK4YEH: am

{{glossary}}

Related wiki pages [[FAQ]]

When adding information to these pages, please link to other pages in the wiki wherever possible.

==A==

'''AC''' : Alternating Current

'''ADC''' : Analogue to Digital Converter. Also known as A/D and A-to-D. A device that samples an analogue wave and converts it into a digital signal, in which a series of numbers is used to represent the amplitude of the original wave.

'''[[ADIF]]''' : Amateur Data Interchange Format, a standard specification for format of exported logbook files.

'''Admittance''' : The reciprocal of [[Impedance |impedance]] of a component in a series or parallel tuned circuit.

'''AF''' : Abbreviation for Audio Frequency. AF is in the range 20Hz to 20 000Hz

'''AFC''' : Automatic Frequency Control - used to prevent drift in FM receivers

'''AFSK''' : Audio Frequency Shift Keying.

'''AGC''' : Automatic Gain Control - a feedback system to reduce fading by automatically adjusting gain

'''AGL''' : (Height) Above Ground Level, for antenna installations.

'''ALC''' : Automatic Level Control - a feedback system in the transmitter output amplifier used to prevent overload.

'''[[Current | Ampere]]''' :(A) The unit used for measurement of current. Usually abbreviated to Amps

'''[[Electromagnetic Waves |Amplitude]]''' : the height of a wave from the average or median position.

'''AMSAT''' : The name for amateur radio [[Satellites |satellite]] organizations world-wide, but in particular the Radio Amateur Satellite Corporation.

'''AM''' : Amlpitude Modulation

'''Amplifier''' : A device that is used to increase voltage, current or power.

'''AMTOR''' : A specialised form of RTTY protocol. An acronym for AMateur Teleprinting Over Radio or AMateur Teletype over Radio.

'''Analog''' (also analogue): a continuously varying signal.

'''ANC, ANR''' : Active noise control, active noise reduction. Also referred to as automatic noise cancellation or antinoise on some transceivers.

'''[[Antennas | Antenna]]''': a device to either radiate radio signals or to receive them from another station.

'''Antenna Switch''' " A switch used to change the output of a transceiver from one [[Antennas | antenna]] to another.

'''[[Antenna tuner | Antenna Tuner]]''' : A device used to match the output [[Impedance | impedance]] of a transmitter to that of an antenna.

'''Anti-VOX''' : Transceiver circuitry used in voice-operated (VOX) stations to prevent audio from the receiver's speaker from actuating the voice-operated transmitter.

'''[[APRS]]''' : Automatic Position Reporting System, Automated Packet Reporting System.

'''[[Clubs|ARC]]''' : Amateur Radio Club (also '''ARA, ARS''' - Amateur Radio Association, Amateur Radio Society) - usually prefixed by the name of the community or region served

'''[[ARDF]]''' : Amateur Radio Direction Finding

'''[[ARES]]''' : Amateur Radio Disaster Services, Amateur Radio Emergency Services

'''[[ARRL]]''' : The American Radio Relay League [http://www.arrl.org/]- the national ham radio association for the USA

'''[[ARISS]]''' : Amateur Radio on the International Space Station. A program that allows schools, with the help of an amateur club, to contact the amateur station on board the International space station.

'''ASL''' : '''A'''bove '''S'''ea '''L'''evel. Vertical height in metres or feet above sea level.

'''[[Attenuators | Attenuator]]''' : A resistive device to reduce the amplitude or power of a signal.

'''ATS''' : Automatic Transfer Switch, switches equipment to a backup power supply in event of power failure.

'''[[ATV]]''' : Amateur Television - "moving picture" ham TV transmissions.

'''Az/El''' : used to describe an antenna rotator that can change both the '''Az'''imuth (horizontal) and the '''E'''levation (vertical) direction of the antenna.

'''Azimuth''' : The horizontal direction (angle) measured clockwise from North.

{{operation}}

L

2011-04-02T06:10:21Z

TimVK4YEH: added lobe

{{glossary}}

==L==
'''Lead acid''' : A rechargeable battery type most commonly used in automobiles and marine applications. As some batteries can deliver large amounts of current instantaneously and contain sulphuric acid, these must be handled with caution.

'''Lid''' : In amateur radio, used to denote a poor or inept operator; a term originally from landline telegraphy.<sup>[http://www.qsl.net/dl4tt/w5vsr.html] [http://www.ac6v.com/hamlid.htm]</sup>

'''LIon''', '''Li-Ion''' : Lithium-Ion, a small but powerful rechargeable battery often factory-installed in laptop computers and handheld devices. As these cells are highly flammable if overheated, they are normally distributed only as part of pre-fabricated battery packs which internally include the requisite temperature sensors and charging circuits.

'''[[antenna loading|Loading coil]]''' : An inductor placed in series with an antenna element in order to lower the antenna's resonant frequency. May be used singly or in conjunction with a [[capacity hat]].

'''[[nulls|Lobe]]''' : a an area in the radiation pattern of an [[Antenna |antenna]] where the radiation is a maximum

'''[[Log Periodic (LPDA) |LPDA]]''' : Log Periodic Dipole Array. A multiband [[Antenna]]

'''LSB''' : (1) Lower Sideband, used primarily in single sideband operation below 10 MHz

'''LSB''' : (2) Least Significant Bit, in transmitted digital data

N

2011-04-02T06:07:50Z

TimVK4YEH:

{{glossary}}

==N==

'''NB''': Narrow band. Also noise blanker.

'''NBFM''' : Narrow band FM

'''Negative''' : no, incorrect

'''Negative copy''' : unsuccessful transmission

'''Negative Feedback''' A process in which a portion of the amplifier output is returned to the input, 180 degrees out of phase with the input signal.

'''Negative Offset''' : Used in repeater systems where the repeater input frequency is lower than the output frequency.

'''[[Nets | Net]]''' : a scheduled and structured on-air meeting of amateurs - often run and controlled by clubs. A directed net designates one station to act as net controller; that station is responsible for inviting other stations to check in (by sending their call signs) and then sequentially assigns each station a window of time in which to send traffic to other stations on the net. Intent is to avoid message collisions which otherwise may be caused by multiple stations attempting to send simultaneously.

'''NiCad''' : Nickel Cadmium, generally refers to a type of rechargeable battery with 1.2 volts per cell.

'''NiMH''' : Nickel Metal Hydride, generally refers to a newer type of rechargeable battery with the same voltage as NiCad cells but increased capacity. NiMH cells do not exhibit the memory effects associated with partial discharge of NiCads, but do still need to be recharged before use if they have been stored for a month or more.

'''Noise''' : Unwanted elecromagnetic energy that can interfere with signal transmission or reception.

'''[[Bipolar-Junction_Transistors#NPN_vs._PNP |NPN]]''' : A type of bipolar transistor that has a layer of P-type semiconductor material sandwiched between layers of N-type semiconductor material.

'''[[nulls | Null]]''' : A position in the radiation pattern of an [[Antenna]] where the radiation is zero or approaches zero

'''NVIS''' : near-vertical-incidence-skywave, a [[Propagation | propagation]] mode where signals are reflected back down from directly overhead. Useful for relatively short-distances, overcoming the limitations of the usual "skip-zone" distance"

Nulls

2011-04-02T06:06:25Z

TimVK4YEH: added brief info and diagram

A null is an area in the propagation pattern of an antenna where the radiation falls to zero or approaches zero.

In the diagram below there are nulls between each of the lobes.

[[File:Antenna lobes and nulls.svg.png]]

File:Antenna lobes and nulls.svg.png

2011-04-02T06:05:12Z

TimVK4YEH: copied from wikipedia 2/4/11

copied from wikipedia 2/4/11

N

2011-04-02T05:58:24Z

TimVK4YEH: null

{{glossary}}

==N==

'''NB''': Narrow band. Also noise blanker.

'''NBFM''' : Narrow band FM

'''Negative''' : no, incorrect

'''Negative copy''' : unsuccessful transmission

'''Negative Feedback''' A process in which a portion of the amplifier output is returned to the input, 180 degrees out of phase with the input signal.

'''Negative Offset''' : Used in repeater systems where the repeater input frequency is lower than the output frequency.

'''[[Nets | Net]]''' : a scheduled and structured on-air meeting of amateurs - often run and controlled by clubs. A directed net designates one station to act as net controller; that station is responsible for inviting other stations to check in (by sending their call signs) and then sequentially assigns each station a window of time in which to send traffic to other stations on the net. Intent is to avoid message collisions which otherwise may be caused by multiple stations attempting to send simultaneously.

'''NiCad''' : Nickel Cadmium, generally refers to a type of rechargeable battery with 1.2 volts per cell.

'''NiMH''' : Nickel Metal Hydride, generally refers to a newer type of rechargeable battery with the same voltage as NiCad cells but increased capacity. NiMH cells do not exhibit the memory effects associated with partial discharge of NiCads, but do still need to be recharged before use if they have been stored for a month or more.

'''Noise''' : Unwanted elecromagnetic energy that can interfere with signal transmission or reception.

'''[[Bipolar-Junction_Transistors#NPN_vs._PNP |NPN]]''' : A type of bipolar transistor that has a layer of P-type semiconductor material sandwiched between layers of N-type semiconductor material.

'''Null''' : A position in the radiation pattern of an [[Antenna]] where the radiation is zero or approaches zero

'''NVIS''' : near-vertical-incidence-skywave, a [[Propagation | propagation]] mode where signals are reflected back down from directly overhead. Useful for relatively short-distances, overcoming the limitations of the usual "skip-zone" distance"

Apps

2011-04-01T21:35:56Z

TimVK4YEH: added internal links

Apps

2011-04-01T21:12:05Z

TimVK4YEH:

'''Ham Radio Apps'''

==Android==

* [https://market.android.com/search?q=ham+radio&so=1&c=apps Android market search]
* [http://www.androlib.com/android.developer.pignology-pBEt.aspx Android apps from N3WG]
* [http://www.androidzoom.com/android_applications/books_and_reference/amateur-radio-callsign-db_bkpw.html Callsign lookup US only?]
* [http://www.hamdroid.com/echolink-finder/ Echolink finder]
* [http://www.androidzoom.com/android_applications/tools/ham_qa.html Ham. Solar and band conditions tool]
* [http://www.androidzoom.com/android_applications/communication/ham-radio_gvph.html Ham Radio - glossary of ham radio terms]
* [http://www.androidzoom.com/android_applications/education/ham-radio-terminology-amateur_sjhg.html Ham Radio terminology]
* [http://sites.google.com/site/hamsatdroid/ HamSatDroid Satellite pass predictor]
* [http://www.hamdroid.com/irlp-finder/ IRLP finder]

==Apple : iPad, iPhone==

* [http://itunes.apple.com/us/app/echolink/id350688562?mt=8 Echolink for iPad]
* [http://www.appsafari.com/utilities/2207/ham-callsign-lookup/ Ham call lookup US only]
* [http://itunes.apple.com/gb/app/ham-dashboard/id397752661?mt=8 Ham Dashboard - UK repeater listing]
* [http://n3wg.com/hamlog/ Hamlog from N3WG]
* [http://itunes.apple.com/gb/app/ham-tracker/id406552499?mt=8 Ham Tracker - APRS-IS]
* [http://itunes.apple.com/au/app/icluster-the-dx-cluster-database/id334053435?mt=8 iCluster DX cluster database]
* [http://n3wg.com/iRover/ iRover logging app from N3WG]
* [http://itunes.apple.com/us/app/maidenhead-converter/id313870236?mt=8 Maidenhead converter]
* [http://www.vosworx.com/ Satellite tracking apps by Vos-works]
* [http://www.blackcatsystems.com/ham_radio_iPhone_iPad_iPod_Apps.html Various apps from BlackCat systems]

==Pocket PC==

* [http://www.n0hr.com/ 5 pocket PC apps from N0HR]

{{Operation}}

Apps

2011-04-01T20:03:51Z

TimVK4YEH: added some apps

'''Ham Radio Apps'''

==Android==

* [https://market.android.com/search?q=ham+radio&so=1&c=apps Android market search]
* [http://www.androlib.com/android.developer.pignology-pBEt.aspx Android apps from N3WG]
* [http://www.androidzoom.com/android_applications/books_and_reference/amateur-radio-callsign-db_bkpw.html Callsign lookup US only?]
* [http://www.hamdroid.com/echolink-finder/ Echolink finder]
* [http://www.androidzoom.com/android_applications/tools/ham_qa.html Ham. Solar and band conditions tool]
* [http://www.androidzoom.com/android_applications/communication/ham-radio_gvph.html Ham Radio - glossary of ham radio terms]
* [http://www.androidzoom.com/android_applications/education/ham-radio-terminology-amateur_sjhg.html Ham Radio terminology]
* [http://sites.google.com/site/hamsatdroid/ HamSatDroid Satellite pass predicter]
* [http://www.hamdroid.com/irlp-finder/ IRLP finder]

==Apple : iPad, iPhone==

* [http://itunes.apple.com/us/app/echolink/id350688562?mt=8 Echolink for iPad]
* [http://www.appsafari.com/utilities/2207/ham-callsign-lookup/ Ham call lookup US only
* [[http://itunes.apple.com/gb/app/ham-dashboard/id397752661?mt=8 Ham Dashboard - UK repeater listing]
* [http://n3wg.com/hamlog/ Hamlog from N3WG]
* [http://itunes.apple.com/gb/app/ham-tracker/id406552499?mt=8 Ham Tracker - APRS-IS]
* [http://itunes.apple.com/au/app/icluster-the-dx-cluster-database/id334053435?mt=8 iCluster DX cluster database]
* [http://n3wg.com/iRover/ iRover logging app from N3WG]
* [http://itunes.apple.com/us/app/maidenhead-converter/id313870236?mt=8 Maidenhead converter]
* [http://www.vosworx.com/ Satellite tracking apps by Vos-works]
* [http://www.blackcatsystems.com/ham_radio_iPhone_iPad_iPod_Apps.html Various apps from BlackCat systems]

==Pocket PC==

* [http://www.n0hr.com/ 5 pocket PC apps from N0HR]

Apps

2011-04-01T07:36:35Z

TimVK4YEH: fixed error

'''Ham Radio Apps'''

==Android==

* [http://www.androlib.com/android.developer.pignology-pBEt.aspx Android apps from N3WG]

==Apple : iPad, iPhone==

* [http://itunes.apple.com/us/app/echolink/id350688562?mt=8 Echolink for iPad]
* [http://www.appsafari.com/utilities/2207/ham-callsign-lookup/ Ham call lookup US only]
* [http://n3wg.com/hamlog/ Hamlog from N3WG]
* [http://itunes.apple.com/au/app/icluster-the-dx-cluster-database/id334053435?mt=8 iCluster DX cluster database]
* [http://n3wg.com/iRover/ iRover logging app from N3WG]
* [http://www.vosworx.com/ Satellite tracking apps by Vos-works]
* [http://www.blackcatsystems.com/ham_radio_iPhone_iPad_iPod_Apps.html Various apps from BlackCat systems]

Apps

2011-04-01T07:36:02Z

TimVK4YEH: added some apps

'''Ham Radio Apps'''

==Android==

* [http://www.androlib.com/android.developer.pignology-pBEt.aspx Android apps from N3WG]

==Apple : iPad, iPhone==

* [http://itunes.apple.com/us/app/echolink/id350688562?mt=8 Echolink for iPad]
* [http://www.appsafari.com/utilities/2207/ham-callsign-lookup/ Ham call lookup US only]
* [http://n3wg.com/hamlog/ Hamlog from N3WG]
* [http://itunes.apple.com/au/app/icluster-the-dx-cluster-database/id334053435?mt=8 iCluster DX cluster database]
* [http://n3wg.com/iRover/] iRover logging app from N3WG
* [http://www.vosworx.com/ Satellite tracking apps by Vos-works]
* [http://www.blackcatsystems.com/ham_radio_iPhone_iPad_iPod_Apps.html Various apps from BlackCat systems]

Software

2011-04-01T07:17:29Z

TimVK4YEH: added apps page

related wiki pages [[Calculators]], [[Websites]], [[User Groups]]
* [[Antenna Design]]
* [[Apps]]
* [[Circuit Design]]
* [[CW]]
* [[Linux software]]
* [[Logging]]
* [[Mac software]]
* [[Moonbounce (EME) Scheduling (Sked) and tracking software]]
* [[Miscellaneous software]]
* [[Radio and Repeater Control]]
* [[Radio programming software]]
* [[RTTY TOR PSK and other Digital Modes]]
* [[Spectrum Analysis]]
* [[SSTV software]]
* [[Tower design]]
* [[Website Creation]]
* [[Widgets]]

{{software}}

Loop

2011-03-04T07:29:24Z

TimVK4YEH: removed wikipedia links not removed by original poster - was that me?

Magnetic loop
From Wikipedia, the free encyclopedia see: http://en.wikipedia.org/wiki/Magnetic_loop (for pictures etc)
Jump to: navigation, search

HF RX Loop, diam. 100 mm, 70 k-120 MHz, 1 turn, Transformer Magnetic loop antennas (also known as small transmitting/receiving loops) are small compared to other antennas for the same wavelength. A magnetic loop is one in which the current amplitude is constant round the circumference, and it is therefore small enough to avoid a significant standing wave in the current distribution. This implies a circumference of 1/10 wavelength or less. Small transmitting loops are typically smaller than 1/4 wavelength in circumference at the intended frequency of operation. Since full-size antennas for shortwave communication can be very large -- sometimes several hundred meters in size -- the loop's ability to operate with smaller size albeit reduced radiation efficiency gives it some advantages, especially for mobile use and military use. Conceptually, the magnetic loop can be thought of as a high Q tank circuit having very large diameter to length ratio to facilitate the magnetic "leakage" that makes it effective as an antenna.

Analysis of the design by antenna professionals, confirmed by controlled experiments, has shown that high radiation efficiency is not obtained, and that the main advantage of the antenna is its compact size. These antennas are usually operated close to ground and therefore produce high-angle radiation at the lower frequencies, which is well suited to NVIS (near-vertical incidence skywave) propagation.

Usually a capacitor is used to "enlarge" the antenna by tuning it to resonance in a parallel L-C circuit. The disadvantage of this method is the low bandwidth of the antenna (high Q) which limits operation to a narrow frequency range. A high Q can also be advantageous, however, since tuned magnetic loops work within a narrow frequency range, when used for reception they reject noise produced in the receiver from intermodulation products. This reduces the noise level as compared with wider-bandwidth antennas. However, because all transmitted signals require a finite bandwidth, the high Q of magnetic loop antennas means that they cannot be used for higher-bandwidth applications.

A further advantage of magnetic loops used for receiving is that they respond to the magnetic-field component of the arriving signal; locally generated rf noise (within 1/6 wavelength) has a generally weak magnetic component so the noise tends to be rejected. This effect is more marked at lower frequencies.

As a result of the narrow operating bandwidth of the antenna, if the frequency of operation is changed, the antenna must be retuned by changing the value of the antenna's tuning capacitor. Bandwidth is the usable frequency range of an antenna. When the antenna is operated outside of its bandwidth, energy from the transmitter is reflected back from the antenna, down through the feedline, and back to the transmitter, and so the antenna obviously fails to radiate correctly.

In addition to narrow bandwidth, magnetic loops have very low radiation resistance, often one or two orders of magnitude less than a full size antenna such as a dipole, and only a fraction of an ohm. Efficiency thus depends on low-loss construction, typically use of thick conductors, and low loss air, mica, or vacuum dielectric capacitors to raise the Q to as high a value as possible consistent with the required bandwidth.

In addition to the high currents resulting from the low radiation resistance, high voltages appear across the tuning capacitor when the loop is used for transmission; a kilowatt transmitting loop can have currents of the order of 100 Amperes and voltages at the capacitor of several tens of kV.

Magnetic loops are often fed with 50 ohm coaxial cable connected across a smaller coupling loop that is 1/5 to 1/8 the size of the antenna. This feed loop provides an impedance match to the loop's low feed resistance over the widest frequency range when it is located on the side of the antenna opposite the tuning capacitor. A less common feed system breaks the tuning capacitor into a two series capacitors with the feed across one of them.

The magnetic loop antenna is an old design which in limited use because of its low radiation efficiency and narrow bandwidth. However many military, commercial, and amateur radio operators still use them today because of the advantages conferred by small size, high-angle radiation and easy transportability. The magnetic loop was widely used in the Vietnam war due to its high portability.

U

2011-01-29T10:11:34Z

TimVK4YEH: added cw abbreviations

{{glossary}}

==U==

'''U''' : CW abbreviation for "you"

'''UFB''' : CW abbreviation for "Ultra Fine Business" or "excellent"

'''[[UHF]]''' : Ultra High Frequency. Frequencies in the range 300MHz to 3 000MHz

'''UHF connector''' : A threaded co-axial RF connector (PL-259, SO-239) originally designed in the 1930's for use at frequencies in the 30-300MHz range. (These frequencies are now considered to be VHF.) Most commonly used in amateur radio stations to make RG-8 or RG-213 cable connections to HF transceivers.

'''UR''' : CW abbreviation for "your"

'''USB''' : (1) Upper Sideband, used primarily for single sideband operation above 10MHz

'''USB''' : (2) Universal Serial Bus, an interface to desktop PC peripherals

'''[[Time |UTC]]''' : Coordinated Universal Time. A corrected - using atomic clocks- version of [[GMT]]

W

2011-01-29T10:07:45Z

TimVK4YEH: added worked and work

{{glossary}}

==W==
'''WAB''' : Worked All Britain.

'''WAC''' : Worked All Continents.

'''[http://en.wikipedia.org/wiki/World_Administrative_Radio_Conference WARC], WRC''' : World (Administrative) Radio Conference. Run by the [http://www.itu.int/net/home/index.aspx International Telecommunications Union].

'''WAN''' : Worked All Neighbours. Used to refer to a powerful station in a densely-populated area where strong signals overload broadcast receivers in the immediate vicinity.

'''WARC Bands''' : Agreed to at the 1979 WARC, they consist of the [[30 metres|30m]] ( 10.100Mhz - 10.150MHz), [[17 metres|17m]] (18.086MHz - 18.186MHz) and [[12 metres|12m]] (24.890MHz - 24.990MHz) amateur bands.

'''WAS''' : Worked All States. In the US, contacts with stations in each of the fifty US states.

'''WAVE''' : Worked All VE. Contacts with stations in each of the Canadian provinces.

'''Waveguide''' : A hollow tube, typically square in cross-section, used to carry microwave signals.

'''[[Electromagnetic Waves |Wavelength]]''' : The distance in metres between corresponding points on a wave.

'''WAXE''' : Worked All XE / México.

'''[http://www.wia.org.au/ WIA]''' : Wireless Institute of Australia. The national organisation for Australian hams.

'''WKD''' : CW abbreviation for "worked"

'''WPM''' : Words per minute.

'''WRK''' : CW abbreviation for "work"

'''[[WSPR |WSPR]]''' : '''W'''eak '''S'''ignal '''P'''ropagation '''R'''eporter.

'''[[WSJT |WSJT]]''' : '''W'''eak '''S'''ignal '''J'''oe '''T'''aylor - named after Joe Taylor who wrote the software.

'''WX''' : Weather. See [[weather spotting]], [[APRS]] for transmission of current meteorological readings via amateur radio. Many [[2 metres|2 metre]] [[handheld transceiver]]s are also capable of extended tuning to permit reception of forecasts over VHF bands assigned to other services, such as marine radio.

V

2011-01-29T10:05:37Z

TimVK4YEH: added vy

{{glossary}}

==V==

'''[[Voltage | Volt]]''' : (V) The unit of electric potential difference ([[Voltage]]) between two points.

'''VA''' : Volt Amperes - measure of apparent power.

'''VAC''' : Volts Alternating Current.

'''[http://en.wikipedia.org/wiki/Vacuum_tube Vacuum Tube]''' : (Also known as an '''Electron Tube''' or a '''Thermionic Valve'''). A device that creates or modifies an electrical signal through the movement of electrons in a low pressure (vacuum) space.

'''Varactor Diode''' : a component whose capacitance decreases as the reverse bias voltage is increased.

'''VCO''' : Voltage-controlled oscillator

'''VE''' : Volunteer Examiner, in countries in which government radio inspectors no longer conduct examinations for prospective new licensees but delegate this task to a few experienced radio amateurs. (Also: VE as a [[Callsign_database#Callsign_prefixes_by_Prefix | callsign prefix]] refers to the Dominion of Canada - so "W/VE stations" would indicate the continent of North America.)

'''VEC''' : Volunteer Examiner Coordinator

'''Vertical Polarization''' : Used to describe a transmission or antenna in which the electric field is propagated perpendicular to the surface of the Earth. Antennas intended for two-way radio communication with mobile stations (where [[vertical antenna]]s are common) typically use vertical polarization, while broadcast TV/FM signals are most often horizontally polarised.

'''VFO''' : Variable Frequency Oscillator

'''Velocity Factor''' : the speed at which radio waves travel in a particular [[Feedlines | feedline]], expressed as a fraction of the speed of light

'''[[VHF]]''' : Very High Frequency. Frequencies in the range 30MHz to 300MHz

'''VIS''' : Vertical Interval Signalling. Digital encoding of the transmission mode in the vertical sync portion of an [[Slow-Scan Television (SSTV) | SSTV]] image.

'''VLCA''' : Very limited coverage area. Typically used in reference to small portable repeaters deployed by emergency/disaster or public service groups to temporarily provide local communication within a relatively-small area.

'''[[Bands | VLF]]''' : Very Low Frequency 3 - 30 KHz

'''VMOS''' : Vertical metal-oxide semiconductor

'''VOX''' : Voice Operated Transmit

'''VSWR''' : Voltage standing wave ratio

'''VK''' : Australia

'''VXO''' : Variable crystal oscillator

'''VY''' : CW abbreviation for "very"

Talk:Dipole

2011-01-19T21:23:47Z

TimVK4YEH: fixed error

The image for folded dipoles is wrong. The entire antenna is only 1/2 lambda long, not 1 lambda. [[User:YL|YL]] 21:25, 7 March 2008 (CST)

Thanks! - fixed

The image now says that it is "1/2 lambda lambda" long. Please remove one of the lambdas. [[User:YL|YL]] 20:57, 28 March 2008 (CDT)

The text under folded dipoles says; "folded dipoles cannot be used as part of a fan dipole, and unlike conventional single-wire dipoles, they cannot be used on their odd harmonics."

The folded dipole will operate on odd harmonics and not on even harmonics. Please correct the text. (Fixed 20/01/11)

Dipole

2011-01-19T21:22:59Z

TimVK4YEH: fixed harmonic error as per talk page

Dipoles are one of the first antennas ever created. Indeed, [[Hertz]] himself is often credited as the inventor of the dipole, in 1886). It's also the simplest antenna designs out there, while staying very powerful and useful, in all bands.

Dipole antennas are "two-sided' in that they are fed from a point between the two ends. In its simplest form, a dipole will be centre-fed, with the total length being a half-wavelength at the frequency of transmission.

''Main article: [[Wikipedia:Dipole_antenna]]''

== Centre-fed half-wave dipole ==

Half-wave centre-fed dipoles with each leg 1/4 wavelength long are perhaps the most common antennas used in amateur radio. They are an example of a [[balanced antenna]] which does not require a [[centerpoise]] or other [[RF ground]].

[[Image:Vk4yeh_Dipole_antenna.png]]

However, in the above diagram, the coaxial cable is not a balanced feeder because the outer shield is grounded and therefore the feedline itself can radiate. This can be solved by using a [[balun]].

These 1/2 wave dipoles can be used on their odd [[harmonics]] as well as their [[fundamental frequency|fundamental resonant frequencies]]. For example, the amateur [[40 metres|40 metre band]] begins at 7 MHz. The 3rd harmonic is 3 x 7 = 21 MHz, where the [[15 metres|15 metre band]] begins. Thus a centre-fed dipole that is a half-wavelength long at [[40 metres]] (approximately 20 metres long, or 66 feet) can also be used as a [[15 metres|15 metre]] antenna.

Dipole length for resonance is calculated using either:

<math>L = \frac {468}{frequency(MHz)}</math> for total length in feet, '''or''',

<math>L = \frac {142.5}{frequency(MHz)}</math> for total length in metres.

== Off-centre-fed dipole (OCF dipole) ==

As the name suggests, the OCF dipole is not fed from the centre. The advantage of a 1/2 wave OCF dipole fed 1/3 of the way from one end is that it can be used on the [[fundamental frequency]] and its even [[harmonics]]. Since most amateur bands are even harmonics of other amateur bands, this is a useful features. An OCF that is 1/2 wavelength long on 80 metres (40 metres long, or 132 feet) can be used on [[80 metres|80]], [[40 metres|40]], [[20 metres|20]], or [[10 metres]].

L is calculated from the formulae above. The dimensions D1, D2 and D3 are found using:

<math>D1 = 0.38L</math>

<math>D2 = 0.62L</math>

<math>D3 = 0.14L</math>

[[Image:Vk4yeh_ocf_dipole.jpg|550px]]

== G5RV antenna ==

Although the G5RV is not a 1/2 wave dipole like those described above, this antenna (invented by Louis Varney, callsign G5RV) shares some physical characteristics with a centre-fed dipole. The main difference between a dipole and G5RV is that the transmission line of a G5RV is part of the [[impedance matching|matching]] section that allows operation over a number of bands. Although the G5RV can be used on [[20 metres]] without an [[antenna tuner]], a tuner is necessary to use it on other bands.

[[Image:G5RV.jpg | 700px]]

There are several different variations on the G5RV. The most well-known is fed through 450-ohm [[ladder line]] 10.6 metres (34.8 feet) long, with one end of the ladder line connected at the centre-feed point of the antenna and the other connected through a [[balun]] to 50-ohm [[Coaxial Cable]] [[feedline]]. An alternative is to run [[balanced feedline]] (such as [[twin-lead]] or [[ladder line]]) all the way from the antenna [[feedpoint]] to the [[antenna tuner]]. The latter arrangement can be very effective, but not all lengths of [[feedline]] will tune properly. (See detailed discussion on [[feedline|feedlines]].) Standard G5RV antennas are 31 metres (102 feet) long (excluding feedline and matching section length), and can be used on [[80 metres|80]], [[40 metres|40]], [[20 metres|20]], [[15 metres|15]], and [[10 metres]]. A half-length G5RV 51 feet long can be used on [[40 metres|40]], [[20 metres|20]], [[15 metres|15]], and [[10 metres|10]]; this variation is known as the '''G5RV jr'''.

The antenna can be installed as a horizontal dipole or an inverted V. If configured as such, the included angle at the apex should exceed 120 degrees. This means, for example, that a junior G5RV will be elevated at most 13 feet higher than the ends of the dipole. To calculate this, you can use the following, where we split the triangle created by the inverted V in two square triangles to apply simple [[Wikipedia:Trigonometric_functions|trigonometry]]:

<math>\frac{height}{hypotenuse} = \cos(half of included angle)</math>

hence:

<math>height = hypothenuse * \cos(half of included angle) = \frac{51}{2} * \cos(\frac{120}{2}) = 26.5 * \cos(60) = 13.25</math>

=== Reviews and references ===

* Excellent analyses of the G5RV have been written by [http://www.cebik.com/wire/g5rv.html W4RNL] and [http://www.vk1od.net/G5RV/ VK1OD]
* Philip Grimshaw (VK4KVK) has written a comprehensive [http://www.grimshaw.net.au/vkg5rvhb.html book] on the G5RV
* [[Construct a G5RV]]
* [[VK2ACY - G5RV coupler]] - Wayne (VK2ACY) has produced a coupler for the G5RV that operates on 80m, 40m and 20m
* [http://www.jackclarke.net/g5rvhalf.htm G5RV using 300ohm ribbon feeder] Construction details from Jack VE3EED

== Folded Dipole ==

'''Folded dipoles''' are also 1/2 wavelength long. (The Greek letter <math>\lambda</math> is commonly used to represent wavelength.) However, the radiating elements are made of two parallel wires that are connected at the ends, and the feedpoint is at the centre of one of the two wires. The advantage of the folded dipole is that its impedance is about 300 ohms, allowing it to be fed with a 300-ohm balanced line. It is possible to make both the radiating elements and the [[feedline]] from 300-ohm [[twinlead]], although some type of [[antenna tuner]] or [[matching section]] will be required to transform the impedance to 50 ohms at the [[Transceivers|transceiver]].

These antennas are commonly used on FM [[repeater|repeaters]] on [[VHF]] bands, although care should be taken using 300-ohm [[twinlead]] at [[VHF]] and higher frequencies. (See discussion on [[feedline]].)

[[Image:vk4yeh_folded_dipole.jpg|550px]]

Another advantage of a folded dipole is that it has a wide usable bandwidth, allowing it to cover more of the band. However, folded dipoles cannot be used as part of a [[dipole#fan dipole|fan dipole]], and unlike conventional single-wire dipoles, they cannot be used on their even harmonics - they are resonant on odd harmonics. (Both of these limitations occur because conventional dipoles have higher [[impedance]] away from their resonant frequencies and reach minimum [[impedance]] at [[resonance]], while folded dipoles have lower [[impedance]] away from [[resonance]] and approach maximum [[impedance]] at [[resonance]]. At DC, a folded dipole is a direct short across the feedpoint, while a conventional dipole is an open circuit.)

== Fan Dipole ==

Several dipoles with different lengths, each of which is resonant on a different band, can be connected together at a common [[feedpoint]] and fed with a single [[feedline]]. This is known as a fan dipole. The radiating elements of the dipoles should not run parallel to each other.

[[Image:vk4yeh_fan_dipole.jpg|550px]]

Each of the dipole element pairs A, B and C in this diagram would usually be cut for a a frequency in the centre of the required amateur band. The total length of each dipole pair is 1/2<math>\lambda</math>.

'''Approximate total lengths of dipole elements'''

<table border=1>
<tr>
<td>Amateur band</td>
<td>total length (feet)</td>
<td>total length (metres)</td>
</tr>
<tr>
<td>80 metre band</td>
<td>120 feet</td>
<td>37 metres</td>
</tr>
<tr>
<td>40 metre band</td>
<td>66 feet</td>
<td>20 metres</td>
</tr>
<tr>
<td>20 metre band</td>
<td>33 feet</td>
<td>10.2 metres</td>
</tr>
<tr>
<td>10 metre band</td>
<td>16.5 feet</td>
<td>5.0 metres</td>
</tr>
</table>

== Coaxial Dipole (Double Bazooka)==

The coaxial dipole antenna consists of a half-wavelength section of coax line with the shield opened a the center and feed line attached to the open ends of the shield. The outside conductor of the coax acts a half-wave dipole in combination with the open wire end sections of the antenna. The inside sections, do not radiate, but act as quarter-wave shorted stubs which presents high resistive impedance to the feed point at resonance and tends to cancel reactance as frequency off resonant frequencies, thus increasing band width.

The antenna can be cut for any operating frequency, from 160-meters down. The RG-58U is capable of handling a full kilowatt. This design is broad-banded will provided low SWR over the entire 80 and 40 meter bands. Construction techniques are not critical. It can be put together with insulators and relief strains or thrown together in an emergency with just twisting and taping. How well its built will determine how long it stays up of course.

The coaxial dipole antenna is perfect for stealth work. As it is insulated it can be placed in trees, under eaves or next to house trim even in attics. It can be put up as a dipole, inverted V, vertical dipole and sloper. Its ends can be bent to accommodate unusual spaces. The 40 meter antenna can be used for 15 meters.

[[Image:Bazooka.jpg |650px]]

'''Dimensions guide'''

[[Image: Bazooka(2).jpg |600px]]

==Coaxial Trap Dipole==

The Coaxial Trap Dipole is a symmetrical wire antenna whith traps at various points along the dipole arms to make them resonant at the required frequencies.

The diagram below shows approximate positions for coaxial traps. These should be verified by cutting them longer and trimming to the achieve resonance.

[[Image:Coaxial_trap_dipole.jpg | 750px]]

===Coaxial traps===

Coaxial traps are coils of coaxial cable wound around cylindrical formers as shown in the diagram below. Please note the connection details inside the former.

[[Image:Coaxial_trap.jpg |520px]]

Formers can be strengthened in a number of ways to avoid stress on the solder joints:

* making a wire "handle" passing through each and of the former. Solder the internal wiring to the the handle where it passes through the end of the former, and the "dipole wire" to the other end of the handle.

* Passing a wood, plastic, fibreglass rod through the former. Use this to provide support for the solder joints.

* The traps can be waterproofed by filling them with silicon sealer.

===Trap dimensions and frequencies===

{| style="border-collapse: collapse; border: none; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0mm 5.4pt 0mm 5.4pt" border="1"
| style="width: 47.95pt; border: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="48" valign="top" |
<center>F</center>
| style="width: 75.6pt; border: solid windowtext .5pt; border-left: none; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>20mm</center>
| style="width: 75.65pt; border: solid windowtext .5pt; border-left: none; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>32mm</center>
| style="width: 75.6pt; border: solid windowtext .5pt; border-left: none; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>65mm</center>
| style="width: 75.65pt; border: solid windowtext .5pt; border-left: none; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>90mm</center>
| style="width: 75.65pt; border: solid windowtext .5pt; border-left: none; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>100mm</center>
|-
| style="width: 47.95pt; border: solid windowtext .5pt; border-top: none; mso-border-top-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="48" valign="top" |
<center>1.83</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 90.45</center>

<center>L = 44.77</center>

<center>C L= 711.51</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 51.15</center>

<center>L = 25.32</center>

<center>CL = 596.34</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 21.63</center>

<center>L = 10.71</center>

<center>CL = 477.85</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 15.07</center>

<center>L = 7.46</center>

<center>CL = 452.22</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 13.51</center>

<center>C = 6.69</center>

<center>CL = 448.03</center>
|-
| style="width: 47.95pt; border: solid windowtext .5pt; border-top: none; mso-border-top-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="48" valign="top" |
<center>3.65</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 45.81</center>

<center>L = 22.67</center>

<center>CL = 361.59</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 26.33</center>

<center>L = 12.03</center>

<center>CL = 308.17</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 11.80</center>

<center>L = 5.84</center>

<center>CL = 261.85</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 8.53</center>

<center>L = 4.22</center>

<center>CL = 257.00</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 7.73</center>

<center>L = 3.83</center>

<center>CL = 257.56</center>
|-
| style="width: 47.95pt; border: solid windowtext .5pt; border-top: none; mso-border-top-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="48" valign="top" |
<center>7.05</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 24.14</center>

<center>L = 11.95</center>

<center>CL = 191.73</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 14.22</center>

<center>L = 7.04</center>

<center>CL = 167.64</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 6.82</center>

<center>L = 3.88</center>

<center>CL = 152.44</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 5.09</center>

<center>L = 2.52</center>

<center>CL = 145.49</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 4.66</center>

<center>L = 2.31</center>

<center>CL = 156.24</center>
|-
| style="width: 47.95pt; border: solid windowtext .5pt; border-top: none; mso-border-top-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="48" valign="top" |
<center>14.17</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 12.41</center>

<center>L = 6.14</center>

<center>CL = 99.81</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 7.59</center>

<center>L = 3.76</center>

<center>CL = 90.69</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 3.93</center>

<center>L = 1.94</center>

<center>CL = 78.08</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 3.02</center>

<center>L = 1.49</center>

<center>CL = 92.53</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
|-
| style="width: 47.95pt; border: solid windowtext .5pt; border-top: none; mso-border-top-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="48" valign="top" |
<center>18.115</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 9.87</center>

<center>L = 4.88</center>

<center>CL = 79.87</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 6.13</center>

<center>L = 3.04</center>

<center>CL = 73.73</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 3.25</center>

<center>L = 1.61</center>

<center>CL = 74.03</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
|-
| style="width: 47.95pt; border: solid windowtext .5pt; border-top: none; mso-border-top-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="48" valign="top" |
<center>21.225</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 8.52</center>

<center>L = 4.22</center>

<center>CL = 69.34</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 5.35</center>

<center>L = 2.65</center>

<center>CL = 64.69</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
|-
| style="width: 47.95pt; border: solid windowtext .5pt; border-top: none; mso-border-top-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="48" valign="top" |
<center>24.895</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 7.36</center>

<center>L = 3,65</center>

<center>Cl = 60.62</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 4.68</center>

<center>L = 2.31</center>

<center>Cl = 56.83</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
|-
| style="width: 47.95pt; border: solid windowtext .5pt; border-top: none; mso-border-top-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="48" valign="top" |
<center>28.8</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 6.45</center>

<center>L = 3.19</center>

<center>Cl = 53.11</center>
| style="width: 75.65pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>T = 4.14</center>

<center>L = 2.05</center>

<center>CL = 50.59</center>
| style="width: 75.6pt; border-top: none; border-left: none; border-bottom: solid windowtext .5pt; border-right: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0mm 5.4pt 0mm 5.4pt" width="76" valign="top" |
<center>�</center>
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<center>�</center>
|}

== Other Dipole Variants ==
* '''"Rabbit ears"''' dipoles are commonly used for TV reception. The position and length of the dipole arms can be adjusted to optimise reception.
* A '''bowtie antenna''' is a dipole element in which each section of the driven element is narrow at the feedpoint and widens at the ends. As this yields a slightly wider bandwidth for the antenna, bowties are commonly used as driven elements on [[panel antenna]]s for wideband UHF broadcast reception.
* A loaded or '''shortened dipole''' may be constructed using inductive [[loading coil]]s in each half of the dipole. Like loading coils for vertical antennas, these may be installed at the feed point or (preferably) in the centre of each element section. As a dipole consists of two quarter-wave segments (instead of the single quarter-wave element of a vertical), two loading coils are required.
* A '''fan dipole''' (above) consists of multiple dipoles, each cut to a different length for a different band and spaced a few inches from each other. All of the individual dipole elements in the fan dipole share a common feedpoint. This design may be combined with the ''shortened dipole'' by providing loading coil pairs for each individual band. As these antennas can cover multiple bands (such as [[20m]], [[40m]], [[80m]]) using one relatively simple design, these are popular for portable radio-amateur operations such as [[Field Day]].
* Many of the most common complex antenna designs, such as [[yagi antenna]]s, [[log-periodic antenna|log-periodics]], [[panel antenna]]s or [[corner reflector]] antennas, are based on one or more dipoles as driven elements, supplemented by added reflectors or directors to add directionality and gain.

== See also ==

* [[Antennas]]
* [[Gain]]
* [[SWR]]
* [[Propagation]]

== External links ==
* [http://www.k7mem.com/Electronic_Notebook/antennas/shortant.html K7MEM: loaded-dipole antenna] web-based calculator
* [http://www.ehow.com/how_4528486_that-doesnt-require-antenna-tuner.html How to Build a Simple But Effective Dipole Antenna That Doesn't Require an Antenna Tune] - ehow.com
* [http://www.eham.net/articles/24060 Your First Dipole] - eham.net
* [http://www.k7mem.150m.com/Electronic_Notebook/antennas/dipole.html Center-Fed Half-Wave Dipole (3-30MHz) by Martin E. Meserve] - good examples on how to build a dipole and associated baluns
* [http://degood.org/coaxtrap/ An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters]

{{antennas}}

QRSS

2011-01-13T06:23:04Z

TimVK4YEH: added qrss grabber info

'''QRSS''' is a [[Morse code|CW]] mode in which the receiver bandwidth is drastically reduced and the rate at which code is sent is slowed beyond that which would be normally be readable by ear. It is named for QRS, a [[Codes_and_Alphabets#Q-Code|Q-code]] indicating "send more slowly".

As received noise is directly proportional to receiver bandwidth, use of bandwidth far less than 1Hz is common in QRSS. This primarily serves the needs of [[QRP]] (low-power) operation, as it allows extremely weak signals to be received and decoded in the presence of high levels of background noise.

[[Morse code]] dot lengths of anywhere from a few seconds to a minute or more have been successfully employed; while a significant improvement in weak-signal performance is observed, the amount of data transferred is severely constrained.

Due to the narrow bandwidth used, frequency stability is critical at both the receiver and transmitter. A crystal-controlled reference using a crystal oven to maintain constant temperature is therefore recommended.

== Fast Fourier Transform demodulation ==
Mathematically, a fast Fourier transform is a calculation which, given a digitized waveform (vs. time) as input, calculates the signal strength at each frequency in the sample. By connecting an SSB receiver to a computer sound card, a received signal may be captured and the signal level at each frequency displayed vs. frequency and time by software.

A computer may store a received signal and replay it at a faster speed; it may also be used (with FFT software) to generate a "waterfall" or "curtain" display graphically. Brightness or colour may be used to indicate signal strength while X:Y axes represent time and frequency. (Axes are assigned so that time runs horizontally for a "curtain" graph and vertically for a "waterfall" - the two graphical depictions are otherwise identical).

As FFT demodulation of CW allows multiple frequencies within the passband to be monitored and displayed simultaneously, it will display a received signal even in the case of frequency drift and can display multiple adjacent-channel signals side-by-side if all fall within the passband.

== Dual-frequency CW ==
The timing for standard International Morse code is:
* Dot: one dot-time "on", followed by one dot-time "off"
* Dash: three dot-times "on", followed by one dot-time "off"
* The space between characters is three dot-times "off"
* The space between words is seven dot-times "off"

A dash (including inter-symbol spacing) therefore takes twice as long to send as a dot. One approach used in QRSS is a non-standard system in which a dot and a dash are the same length but are transmitted on slightly-different frequencies. This scheme permits the time between individual symbols to be reduced, as well as reducing the length of a dash - but at the cost of allowing slightly-wider bandwidth. As two frequencies are used, each of the pair is subject to noise and interference.

== Applications ==
QRSS has served primarily in applications such as CW beacons, where only relatively small amounts of data need be transmitted. While it has been used on various HF bands, it is most useful on bands where radioamateur allocations are very narrow or strictly limited in power (such as the 136kHz allocation in the United Kingdom, cited as having stringent power limits, a very limited bandwidth and a 2200-metre wavelength where most practical transmitting loops provide just a small fraction of one percent of power efficiency). Transmitters are typically small QRP or QRPp devices of home-brew design; some stations have used 1 RPM clockwork as a motor to turn a mechanical disk on which a beacon's callsign is encoded.

QRSS techniques have been applied to other digital and facsimile modes, including the Hellschreiber frequency-vs-time facsimile plotting system (as the same demodulation techniques which apply to the CW "curtain" and "waterfall" graphs apply to Hellschreiber).

== QRSS Grabbers==

A QRSS grabber is a dedicated receiver that collects and decodes qrss signls.

Information about how to set up a grabber can be found [http://knightsqrss.blogspot.com/2010/11/howto-setup-qrss-grabber.html Here]

A compendium of grabbers can be found [http://www.google.com/search?hl=&q=qrss+grabber+compendium&sourceid=navclient-ff&rlz=1B2GGGL_enAU204AU205&ie=UTF-8&aq=1&oq=qrss+grabber here]

== External links ==

* [http://www.qrss.thersgb.net What is QRSS?, Receiving QRSS, Transmitting QRSS], M0AYF
* [http://www.qsl.net/on7yd/136narro.htm Extreme narrow-bandwidth techniques], ON7YD
* [http://www.hanssummers.com/radio/qrssjb/index.htm QRSS junkbox beacon], G0UPL
* [http://www.ussc.com/~turner/qrss1.html QRSS and you]
* [http://www.w0ch.net/qrss/qrss.htm QRSS], W0CH
* [http://g4oep.atspace.com/qrss/qrss.htm QRSS], G4OEP
* [http://www.users.on.net/~davroz/vk6di/ Weak Signal and QRSS Web page] VK6DI

{{modes}}

Tropospheric ducting

2011-01-06T21:41:45Z

TimVK4YEH: corrected error

Related wiki pages: [[Propagation]], [[Bands]], [[Meteor scatter]], [[Lightning scatter]], [[Aurora]], [[Trans-Equatorial Propagation]]

== Basics ==

The [http://en.wikipedia.org/wiki/Troposphere troposphere] is the layer of atmosphere closest to earth. It is approximately 10km deep on average, but can extend to 20km in tropical areas.

[[Image:Vk4yeh_atmosphere.jpg]]

Tropospheric propagation occurs when signals are reflected scattered or refracted in the troposphere. "Ducting" effects occur primarily because of [http://en.wikipedia.org/wiki/Temperature_inversion temperature inversions] at a height of between 500m and 1500m, and occasionally up to 3000m. Such inversions are not caused by local "weather" or terrain, but rather by climatic conditions such as [http://en.wikipedia.org/wiki/Weather_front frontal boundaries]. Temperature inversions are usually layers rather than sharp lines separating regions of different temperature.

The thickness of the inversion layer affects the LUF (Lowest usable frequency) - thinner layers only propagate higher frequencies such as microwaves, thicker layers can be used into lower frequency regions of the spectrum. [http://www.dxinfocentre.com/propagation/luf.htm This table] shows inversion thickness and LUF data.

[[Image:Vk4yeh_tropoducting.jpg|600px]]

When ducting occurs, signals travel along and within the inversion layer, reflected off its boundaries.

== Links: ==
* [http://www.dxinfocentre.com/tropo_nwe.html Worldwide] ducting forecast from DXinfocentre.

{{propagation}}

Dictionary of Ham Radio Terms

2011-01-06T08:47:39Z

TimVK4YEH:

{{glossary}}

Related wiki pages [[FAQ]]

When adding information to these pages, please link to other pages in the wiki wherever possible.

==A==

'''AC''' : Alternating Current

'''ADC''' : Analogue to Digital Converter. Also known as A/D and A-to-D. A device that samples an analogue wave and converts it into a digital signal, in which a series of numbers is used to represent the amplitude of the original wave.

'''[[ADIF]]''' : Amateur Data Interchange Format, a standard specification for format of exported logbook files.

'''Admittance''' : The reciprocal of [[Impedance |impedance]] of a component in a series or parallel tuned circuit.

'''AF''' : Abbreviation for Audio Frequency. AF is in the range 20Hz to 20 000Hz

'''AFC''' : Automatic Frequency Control - used to prevent drift in FM receivers

'''AFSK''' : Audio Frequency Shift Keying.

'''AGC''' : Automatic Gain Control - a feedback system to reduce fading by automatically adjusting gain

'''AGL''' : (Height) Above Ground Level, for antenna installations.

'''ALC''' : Automatic Level Control - a feedback system in the transmitter output amplifier used to prevent overload.

'''[[Current | Ampere]]''' :(A) The unit used for measurement of current. Usually abbreviated to Amps

'''[[Electromagnetic Waves |Amplitude]]''' : the height of a wave from the average or median position.

'''AMSAT''' : The name for amateur radio [[Satellites |satellite]] organizations world-wide, but in particular the Radio Amateur Satellite Corporation.

'''Analog''' (also analogue): a continuously varying signal.

'''ANC, ANR''' : Active noise control, active noise reduction. Also referred to as automatic noise cancellation or antinoise on some transceivers.

'''[[Antennas | Antenna]]''': a device to either radiate radio signals or to receive them from another station.

'''Antenna Switch''' " A switch used to change the output of a transceiver from one [[Antennas | antenna]] to another.

'''[[Antenna tuner | Antenna Tuner]]''' : A device used to match the output [[Impedance | impedance]] of a transmitter to that of an antenna.

'''Amplifier''' : A device that is used to increase voltage, current or power.

'''AMTOR''' : A specialised form of RTTY protocol. An acronym for AMateur Teleprinting Over Radio or AMateur Teletype over Radio.

'''Anti-VOX''' : Transceiver circuitry used in voice-operated (VOX) stations to prevent audio from the receiver's speaker from actuating the voice-operated transmitter.

'''[[APRS]]''' : Automatic Position Reporting System, Automated Packet Reporting System.

'''[[Clubs|ARC]]''' : Amateur Radio Club (also '''ARA, ARS''' - Amateur Radio Association, Amateur Radio Society) - usually prefixed by the name of the community or region served

'''[[ARDF]]''' : Amateur Radio Direction Finding

'''[[ARES]]''' : Amateur Radio Disaster Services, Amateur Radio Emergency Services

'''[[ARRL]]''' : The American Radio Relay League [http://www.arrl.org/]- the national ham radio association for the USA

'''[[ARISS]]''' : Amateur Radio on the International Space Station. A program that allows schools, with the help of an amateur club, to contact the amateur station on board the International space station.

'''ASL''' : '''A'''bove '''S'''ea '''L'''evel. Vertical height in metres or feet above sea level.

'''[[Attenuators | Attenuator]]''' : A resistive device to reduce the amplitude or power of a signal.

'''ATS''' : Automatic Transfer Switch, switches equipment to a backup power supply in event of power failure.

'''[[ATV]]''' : Amateur Television - "moving picture" ham TV transmissions.

'''Az/El''' : used to describe an antenna rotator that can change both the '''Az'''imuth (horizontal) and the '''E'''levation (vertical) direction of the antenna.

'''Azimuth''' : The horizontal direction (angle) measured clockwise from North.

{{operation}}

Dictionary of Ham Radio Terms

2011-01-06T08:47:10Z

TimVK4YEH: added asl

{{glossary}}

Related wiki pages [[FAQ]]

When adding information to these pages, please link to other pages in the wiki wherever possible.

==A==

'''AC''' : Alternating Current

'''ADC''' : Analogue to Digital Converter. Also known as A/D and A-to-D. A device that samples an analogue wave and converts it into a digital signal, in which a series of numbers is used to represent the amplitude of the original wave.

'''[[ADIF]]''' : Amateur Data Interchange Format, a standard specification for format of exported logbook files.

'''Admittance''' : The reciprocal of [[Impedance |impedance]] of a component in a series or parallel tuned circuit.

'''AF''' : Abbreviation for Audio Frequency. AF is in the range 20Hz to 20 000Hz

'''AFC''' : Automatic Frequency Control - used to prevent drift in FM receivers

'''AFSK''' : Audio Frequency Shift Keying.

'''AGC''' : Automatic Gain Control - a feedback system to reduce fading by automatically adjusting gain

'''AGL''' : (Height) Above Ground Level, for antenna installations.

'''ALC''' : Automatic Level Control - a feedback system in the transmitter output amplifier used to prevent overload.

'''[[Current | Ampere]]''' :(A) The unit used for measurement of current. Usually abbreviated to Amps

'''[[Electromagnetic Waves |Amplitude]]''' : the height of a wave from the average or median position.

'''AMSAT''' : The name for amateur radio [[Satellites |satellite]] organizations world-wide, but in particular the Radio Amateur Satellite Corporation.

'''Analog''' (also analogue): a continuously varying signal.

'''ANC, ANR''' : Active noise control, active noise reduction. Also referred to as automatic noise cancellation or antinoise on some transceivers.

'''[[Antennas | Antenna]]''': a device to either radiate radio signals or to receive them from another station.

'''Antenna Switch''' " A switch used to change the output of a transceiver from one [[Antennas | antenna]] to another.

'''[[Antenna tuner | Antenna Tuner]]''' : A device used to match the output [[Impedance | impedance]] of a transmitter to that of an antenna.

'''Amplifier''' : A device that is used to increase voltage, current or power.

'''AMTOR''' : A specialised form of RTTY protocol. An acronym for AMateur Teleprinting Over Radio or AMateur Teletype over Radio.

'''Anti-VOX''' : Transceiver circuitry used in voice-operated (VOX) stations to prevent audio from the receiver's speaker from actuating the voice-operated transmitter.

'''[[APRS]]''' : Automatic Position Reporting System, Automated Packet Reporting System.

'''[[Clubs|ARC]]''' : Amateur Radio Club (also '''ARA, ARS''' - Amateur Radio Association, Amateur Radio Society) - usually prefixed by the name of the community or region served

'''[[ARDF]]''' : Amateur Radio Direction Finding

'''[[ARES]]''' : Amateur Radio Disaster Services, Amateur Radio Emergency Services

'''[[ARRL]]''' : The American Radio Relay League [http://www.arrl.org/]- the national ham radio association for the USA

'''[[ARISS]]''' : Amateur Radio on the International Space Station. A program that allows schools, with the help of an amateur club, to contact the amateur station on board the International space station.

'''ASL''' : '''A'''bove '''S'''ea '''L'''evel. Vertical height in metres or feet above sea level.

'''[[Attenuators | Attenuator]]''' : A resistive device to reduce the amplitude or power of a signal.

'''ATS''' : Automatic Transfer Switch, switches equipment to a backup power supply in event of power failure.

'''[[ATV]]''' : Amateur Television - "moving picture" ham TV transmissions.

'''Az/El''' : used to describe an antenna rotator that can change both the '''Az'''imuth (horizontal) and the '''El'''evation (vertical) direction of the antenna.

'''Azimuth''' : The horizontal direction (angle) measured clockwise from North.

{{operation}}

E

2011-01-06T08:45:11Z

TimVK4YEH: added elevation

{{glossary}}

==E==

'''Earth''' : A circuit connection to a ground rod driven into the ground or system of wires buried below the surface of the ground.

'''EIRP''' : '''E'''ffective '''I'''sotropic '''R'''adiated '''P'''ower. The sum of transmitted power and antenna gain, minus any transmission line losses.

'''[[Electromagnetic Waves]]''' : The waves emitted by an [[Antennas |antenna]], having two dimensions, electric and magnetic.

'''EHF''' : '''E'''xtremely '''H'''igh '''F'''requency - from 30GHz to 300GHz

'''[http://en.wikipedia.org/wiki/Vacuum_tube Electron Tube]''' : (Also known as an '''Vacuum Tube''' or a '''Thermionic Valve'''). A device that creates or modifies an electrical signal through the movement of electrons in a low pressure (vacuum) space.

'''Elevation''' (1) : The angle that an antenna - often a beam - makes with the horizontal.

'''Elevation''' (2) : How high an object/place/station is above sea level. Same as ASL (Above Sea Level)

'''Elmer''' : Slang for a person who helps newcomers get started in amateur radio.

'''[[Moonbounce (EME) | EME]]''' : '''E'''arth '''M'''oon '''E'''arth - bouncing a signal off the moon to a remote station that would not normally be accessible.

'''EMF''' : '''E'''lectro'''m'''otive '''F'''orce - [[Voltage]].

'''EMI''' : Electromagnetic Interference.

'''ERP''' : '''E'''ffective '''R'''adiated '''P'''ower.

'''[http://www.eqsl.cc/qslcard/index.cfm eQSL]''' : Electronic [[QSL]] - a website for sending and receiving QSL's online.

'''[[E-Skip]]''' : [[Propagation]] through signals being refracted in the E-Layer

'''Eu''' : Europe

Dictionary of Ham Radio Terms

2011-01-06T08:42:20Z

TimVK4YEH: added azimuth

{{glossary}}

Related wiki pages [[FAQ]]

When adding information to these pages, please link to other pages in the wiki wherever possible.

==A==

'''AC''' : Alternating Current

'''ADC''' : Analogue to Digital Converter. Also known as A/D and A-to-D. A device that samples an analogue wave and converts it into a digital signal, in which a series of numbers is used to represent the amplitude of the original wave.

'''[[ADIF]]''' : Amateur Data Interchange Format, a standard specification for format of exported logbook files.

'''Admittance''' : The reciprocal of [[Impedance |impedance]] of a component in a series or parallel tuned circuit.

'''AF''' : Abbreviation for Audio Frequency. AF is in the range 20Hz to 20 000Hz

'''AFC''' : Automatic Frequency Control - used to prevent drift in FM receivers

'''AFSK''' : Audio Frequency Shift Keying.

'''AGC''' : Automatic Gain Control - a feedback system to reduce fading by automatically adjusting gain

'''AGL''' : (Height) Above Ground Level, for antenna installations.

'''ALC''' : Automatic Level Control - a feedback system in the transmitter output amplifier used to prevent overload.

'''[[Current | Ampere]]''' :(A) The unit used for measurement of current. Usually abbreviated to Amps

'''[[Electromagnetic Waves |Amplitude]]''' : the height of a wave from the average or median position.

'''AMSAT''' : The name for amateur radio [[Satellites |satellite]] organizations world-wide, but in particular the Radio Amateur Satellite Corporation.

'''Analog''' (also analogue): a continuously varying signal.

'''ANC, ANR''' : Active noise control, active noise reduction. Also referred to as automatic noise cancellation or antinoise on some transceivers.

'''[[Antennas | Antenna]]''': a device to either radiate radio signals or to receive them from another station.

'''Antenna Switch''' " A switch used to change the output of a transceiver from one [[Antennas | antenna]] to another.

'''[[Antenna tuner | Antenna Tuner]]''' : A device used to match the output [[Impedance | impedance]] of a transmitter to that of an antenna.

'''Amplifier''' : A device that is used to increase voltage, current or power.

'''AMTOR''' : A specialised form of RTTY protocol. An acronym for AMateur Teleprinting Over Radio or AMateur Teletype over Radio.

'''Anti-VOX''' : Transceiver circuitry used in voice-operated (VOX) stations to prevent audio from the receiver's speaker from actuating the voice-operated transmitter.

'''[[APRS]]''' : Automatic Position Reporting System, Automated Packet Reporting System.

'''[[Clubs|ARC]]''' : Amateur Radio Club (also '''ARA, ARS''' - Amateur Radio Association, Amateur Radio Society) - usually prefixed by the name of the community or region served

'''[[ARDF]]''' : Amateur Radio Direction Finding

'''[[ARES]]''' : Amateur Radio Disaster Services, Amateur Radio Emergency Services

'''[[ARRL]]''' : The American Radio Relay League [http://www.arrl.org/]- the national ham radio association for the USA

'''[[ARISS]]''' : Amateur Radio on the International Space Station. A program that allows schools, with the help of an amateur club, to contact the amateur station on board the International space station.

'''[[Attenuators | Attenuator]]''' : A resistive device to reduce the amplitude or power of a signal.

'''ATS''' : Automatic Transfer Switch, switches equipment to a backup power supply in event of power failure.

'''[[ATV]]''' : Amateur Television - "moving picture" ham TV transmissions.

'''Az/El''' : used to describe an antenna rotator that can change both the '''Az'''imuth (horizontal) and the '''El'''evation (vertical) direction of the antenna.

'''Azimuth''' : The horizontal direction (angle) measured clockwise from North.

{{operation}}

Sunspot Cycle

2011-01-06T08:37:46Z

TimVK4YEH: added external links

==What is it?==

The sunspot cycle is generally known to be a cycle of approximately 11 years between successive peaks in sunspot activity.

What is less known and understood is that with each successive 11 year peak, the magnetic field of the sunspots is reversed. So the sunspot cycle is in reality a 22 year cycle when the magnetic fields of the sunspots are taken into account.

On January 4th 2008, the first recent "reverse polarity" sunspot was recorded. This officially marked the start of sunspot cycle 24.

==Why are the sunspot cycles numbered?==

The first written evidence of sunspot observations are from around 800BC in China. The first telescopic observations of the sun started in the 1600's, with the cyclic nature of sunspot activity being described by Samuel Schwabe in 1843. We are now (2009) at the start of a new sunspot cycle.

==How do sunspots affect [[Propagation | propagation]]?==

Most shortwave radio users know that there is a correlation between sunspots and [[Propagation | propagation]] conditions. Sunspots are dark regions on the surface of the Sun, which are cooler than surrounding areas. They occur when the lines of the Sun's magnetic field become twisted. There are more sunspots when the Sun is more active, and produces more radiation which can affect the Earth's ionosphere.

The F layer of the ionosphere is caused mostly by ultraviolet radiation from the Sun. During times of high solar activity, there is more radiation from the Sun, and the resulting higher ionization levels in the F layer allow higher frequencies to be reflected. For example, around solar maximum, the 10 meter band (28 to 30 MHz) is frequently open for extended periods of time, and long distances can be worked with rather low power levels.

The D layer is also ionized more during the solar maximum, resulting in more attenuation, especially at the lower frequencies.

External link [http://prop.hfradio.org/ Radiowave propagation center]

==What is the solar flux?==

Solar flux measures the radiation signal strength at 2800 MHz (10.7 cm wavelength ) There is a rough relationship between the signal strength and the number of sunspots. As the sunspot number (SSN) varies from 0 around 200, the solar flux varies from around 60 to 300.

==How is sunspot activity predicted?==

NASA uses a number of methods for predicting sunspot activity. At the minimum of a cycle there are relationships between the size of the next cycle maximum and the length of the previous cycle, the level of activity at sunspot minimum, and the size of the previous cycle.

Among the most reliable techniques are those that use the measurements of changes in the Earth's magnetic field at, and before, sunspot minimum. These changes in the Earth's magnetic field are known to be caused by solar storms but the precise connections between them and future solar activity levels is still uncertain.

In 1993 Richard Thompson found a relationship between the number of days during a sunspot cycle in which the geomagnetic field was "disturbed" and the amplitude of the next sunspot maximum. This method has the advantage of giving a prediction for the size of the next sunspot maximum well before sunspot minimum.

NASA uses a combination of prediction techniques, and has produced the following graphic that shows the range within which the next sunspot cycle will be.

[[Image:Ssn predict l.jpg | 700px]]

==Why is there variatiion in the sunspot cycle?==

Information is taken from the [http://science.nasa.gov/headlines/y2009/17jun_jetstream.htm?list1092811 Science@NASA newsletter website].

'''June 17, 2009:''' The sun is in the pits of a century-class solar minimum, and sunspots have been puzzlingly scarce for more than two years. Now, for the first time, solar physicists might understand why.

At an American Astronomical Society press conference today in Boulder, Colorado, researchers announced that a jet stream deep inside the sun is migrating slower than usual through the star's interior, giving rise to the current lack of sunspots.

Rachel Howe and Frank Hill of the National Solar Observatory (NSO) in Tucson, Arizona, used a technique called helioseismology to detect and track the jet stream down to depths of 7,000 km below the surface of the sun. The sun generates new jet streams near its poles every 11 years, they explained to a room full of reporters and fellow scientists. The streams migrate slowly from the poles to the equator and when a jet stream reaches the critical latitude of 22 degrees, new-cycle sunspots begin to appear.

Howe and Hill found that the stream associated with the next solar cycle has moved sluggishly, taking three years to cover a 10 degree range in latitude compared to only two years for the previous solar cycle.

The jet stream is now, finally, reaching the critical latitude, heralding a return of solar activity in the months and years ahead.

'''August 13 2010''' this [http://www.bbc.co.uk/news/science-environment-10967292 link] gives an explanation as to why the sun has been "quiet" for longer than expected.

==external links==

* [http://solarscience.msfc.nasa.gov/SunspotCycle.shtml NASA Solar Physics - Sunspot cycle page]
* [http://en.wikipedia.org/wiki/Solar_cycle Wikipedia solar cycle page]

{{propagation}}

R

2010-12-21T05:51:27Z

TimVK4YEH: added rf

{{glossary}}

==R==

'''Regulator''' : A device - often built to employ a Zener Diode as reference - which maintains a constant output voltage over a range of load currents and input voltages.

'''[[Repeater | Repeater]]''' : A transceiver - often comprised of separate transmitted and receiver linked by controlling hardware. A repeater picks up a radio signal and re-transmits it, allowing weak stations to be heard from further away than normally possible.

'''Repeater council''' : A voluntary regional amateur organisation coordinating repeater frequency pair assignments to minimise interference. As no individual amateur group owns any given radio frequency, a council does not exercise legal authority to force individual repeater operators onto a specific frequency, height, location, power or directional pattern. Nonetheless, amateurs are obligated by national laws to avoid interference to other amateur stations and official regulatory agencies will resolve interference complaints between repeater operators by forcing uncoordinated repeaters to move off frequencies where their operation interferes with any coordinated repeater.

'''[[Resistors | Resistance]]''' : The measure of how much an ''object'' (a resistor) opposes the flow of electric current.

'''[[table of resistivities | Resistivity]]''' : The measure of how strongly a ''material'' (eg plastic) opposes the flow of electric current.

'''[[Resistors | Resistor]]''' : A device that opposes the flow of electric current.

'''RF''' : '''R'''adio '''F'''requencies : Frequencies that can pass through space as electromagnetic radiation.

'''[[QRM | RFI]]''' : Radio Frequency Interference (also '''BCI''' - broadcast interference, '''TVI''' - television interference). Normally resolved by installation of [[filter]]s at the transmitter, the affected receiver(s) or both.

'''Ripple''' : The residual AC left over after rectification and filtering when an AC supply has been converted to DC'

'''[[Operating_procedures#RIT | RIT]]''' : Receive Incremental Tuning, '''R'''eceive '''I'''ndependant of '''T'''ransmit. The ability to shift the receive frequency of a transceiver away from the transmit frequency by a small amount.

'''RMS''' : Root Mean Square. Calculated by squaring each of the values on a signal, calculating the mean of the squares, and then taking the square root of the mean. approximately 0.707 of the peak value.

'''[http://rosmodem.wordpress.com/ ROS Digital]''' : An MFSK digital mode created in 2009.

'''[http://www.rsgb.org/ RSGB]''' : Radio Society of Great Britain - national amateur radio organisation of UK.

'''[[Codes and Alphabets#RSQ code |RSQ code]]''' Used to describe the readability, strength and quality of digital modes.

'''[[Codes and Alphabets#RST code | RST code]]''' Used to describe the readability, strength and tone of voice or CW transmissions.

'''RTTY''' : Radioteletype.

'''[[Codes and Alphabets#RSV code |RSV code]]''' used to describe the readability, stength and video quality of SSTV transmissions

'''RX''' : Abbreviation for receive or receiver

C

2010-12-21T05:49:14Z

TimVK4YEH: added carrier power

{{glossary}}

==C==

'''[[Callsign Databases#Callsign |Callsign]]''' A unique identifier for each radio amateur and licensed radio station throughout the world

'''[[Capacitors |Capacitor]]''' : A passive electronic component composed of two conducting plates separated by a dielectric (insulating material).

'''[[Capacity hat |Capacitive Hat]]''' : Also known as a capacity hat. A system of wires, or at [[VHF]] and above a solid metal disk, added to the top of a [[Vertical antenna | vertical antenna]] to reduce its [[Inductor |inductance]] and increase its bandwidth.

'''Carrier Frequency''' : The centre frequency of a radio signal.

'''Carrier Power''' : The average power supplied to the antenna when no modulation is taking place.

'''[[What is a cavity filter?|Cavity filter]]''' : A very narrow RF filter used to pass one single frequency, common in repeater operations where the receiver must be protected from overload by a transmitter on the same band on the same antenna tower.

'''Circular Polarization''': A method of polarizing the antenna such that the emmitted electric field rotates around the axis of the antenna

'''[[Modes#Clover|CLOVER ]]''' : A PSK mode that allows full duplex communications.

'''CNDX''' : Abbreviation for Conditions

'''[[Coaxial Cable]]''' : Cable that has a central conductor and an outer shield as the second conductor. Known as coaxial because the cable is cylindrical and the conductors share the same central axis.

'''[[Resistors#Resistor_colour_bands | Color Code]]''' : Also spelt colour code. Coloured bands on resistors and other components that show their value.

'''Condenser''' : old name for [[Capacitors | Capacitor]]

'''Conductor''' : A material through which electricity flows easily.

'''Core''' : The material used in the centre of an [[Inductor]] coil.

'''CQ''' : Request for contact - specifically "calling any operator"

'''[http://www.cq-amateur-radio.com/ CQ Magazine]''' : Published by CQ Communications.

'''Cross Modulation''' : distortion caused by two or more carriers interfering with each other.

'''[[CTCSS]]''' : '''C'''ontinuous '''T'''one-'''C'''oded '''S'''quelch '''S'''ystem - a sub-audible tone that is frequently used on repeaters. The signal "opens" the repeater for use.

'''[[Current]]''' : The flow of electricity through a conductor - usually associated with electron movement, but current is actually the transfer of charge between atoms.

'''CW''' : '''C'''ontinuous '''W'''ave - used in [[Morse code]] transmissions.

'''[[Codes and Alphabets#CW Abbreviations |CW Abbreviations]]''' Used by CW operators to reduce the length of transmissions by shortening words or phrases to a 2 or three letter code.

H

2010-12-21T05:45:35Z

TimVK4YEH: added HT voltage

{{glossary}}

==H==
'''HAAT''' : '''H'''eight '''A'''bove '''A'''verage '''T'''errain.

'''[[Harmonics | Harmonic]]''' : Integer multiples of the fundamental frequency being generated, harmonics are present if a signal is not perfectly sinusoidal or is undergoing intermodulation distortion. Harmonics located outside the desired band for transmission are normally removed with low-pass filters to avoid interference to other radio services.

'''Half Duplex''' : The ability for a transceiver to transmit and receive on two different frequencies, but ony one of these at any given time.

'''Half wave dipole''' : An [[Antennas |antenna]] that is half a wavelength total, fed at the centre.

'''HASL''' : '''H'''eight '''A'''bove '''S'''ea '''L'''evel. Often used for mountaintop stations such as repeaters and portable operations to describe their elevation. Measured in either feet or metres depending on the country.

'''hamfest''' : An event at which hams can buy sell and swap equipment. Often held in conjuction with lectures and demonstrations of equipment.

'''[[Harmonics | Harmonic]]''' : An integer multiple of a [[Frequency_Wavelength_ and Period | frequency]]

'''Harmonic (of a ham) ''' : Slang term for the child of a ham.

'''Hellschreiber''' (Hell) : A digital mode for sending and receiving text using facsimile (fax) technology.

'''Henry''' :(H) The unit for [[Inductors |inductance]]

'''Hertz''' : Hz - The unit of measure for [[Frequency Wavelength and Period |frequency]]. Named after [http://en.wikipedia.org/wiki/Heinrich_Hertz Heinrich Hertz]

'''[[HF]]''' : '''H'''igh '''F'''requency. Frequencies in the range 3MHz to 30MHz, also known as shortwave.

'''High Pass Filter''' : A [[Filters |filter]] designed to pass high frequency signals.

'''hi hi''' : The [[Morse code | morse]] equivalent of laughter.

'''Homebrew''' : Home built equipment.

'''Horizontal Polarization''' : An [[Antennas |antenna]] which projects a radio signal in which the electric field is parallel to the surface of the earth '''OR''' a radio signal of which the electric field is propagated parallel to the surface of the Earth.

'''HT (1)''' : '''H'''andheld '''T'''ransceiver or '''H'''andi'''T'''alkie. Usually refers to transceivers that operate in the [[2 metres | 2m]] and [[70 centimetres | 70cm]] amateur bands; these are self-contained hand-held radios which include an antenna and battery and transmit at low power.

'''HT (2)''' : '''H'''igh '''T'''ension Voltage. Voltages over 500V

T

2010-12-21T05:40:36Z

TimVK4YEH: added thermionic valve

{{glossary}}

==T==

'''Telegraphy''' ; text based [[Modes |modes]]. Includes morse and RTTY.

'''[http://en.wikipedia.org/wiki/Vacuum_tube Thermionic Valve]''' : (Also known as an '''Electron Tube''' or a '''Vacuum Tube'''). A device that creates or modifies an electrical signal through the movement of electrons in a low pressure (vacuum) space.

'''THROB''' : An MFSK digital mode based on tone pairs.

'''TNC''' : '''T'''erminal '''N'''ode '''C'''ontroller - a device used in packet radio that disassembles and re-assembles packets of data.

'''TOR''' ('''T'''eleprinting '''O'''ver '''R'''adio): Used in three digital modes; AMTOR, PACTOR and G-TOR.

'''Toroid''' : A donut-shaped solid usually constructed of ferrite, used as the former for transformers and inductors'

'''[[Attenuators | T pad]] ''' : one of the possible configurations used in [[Attenuators]]

'''Transceiver''' : A radio that has both a transmitter and a receiver, which either share common circuitry or a common housing or both.

'''Transient''' : A short spike or trough on a power line, usually lasting for a few microseconds.

'''[[Feedlines | Transmission Line]]''' : Also known as [[Feedlines |feedline]].

'''[[TVI]]''' : Interference to television reception.

'''TX''' : Abbreviation for transmit or transmission

E

2010-12-21T05:39:15Z

TimVK4YEH: added electron tube

{{glossary}}

==E==

'''Earth''' : A circuit connection to a ground rod driven into the ground or system of wires buried below the surface of the ground.

'''EIRP''' : '''E'''ffective '''I'''sotropic '''R'''adiated '''P'''ower. The sum of transmitted power and antenna gain, minus any transmission line losses.

'''[[Electromagnetic Waves]]''' : The waves emitted by an [[Antennas |antenna]], having two dimensions, electric and magnetic.

'''EHF''' : '''E'''xtremely '''H'''igh '''F'''requency - from 30GHz to 300GHz

'''[http://en.wikipedia.org/wiki/Vacuum_tube Electron Tube]''' : (Also known as an '''Vacuum Tube''' or a '''Thermionic Valve'''). A device that creates or modifies an electrical signal through the movement of electrons in a low pressure (vacuum) space.

'''Elmer''' : Slang for a person who helps newcomers get started in amateur radio.

'''[[Moonbounce (EME) | EME]]''' : '''E'''arth '''M'''oon '''E'''arth - bouncing a signal off the moon to a remote station that would not normally be accessible.

'''EMF''' : '''E'''lectro'''m'''otive '''F'''orce - [[Voltage]].

'''EMI''' : Electromagnetic Interference.

'''ERP''' : '''E'''ffective '''R'''adiated '''P'''ower.

'''[http://www.eqsl.cc/qslcard/index.cfm eQSL]''' : Electronic [[QSL]] - a website for sending and receiving QSL's online.

'''[[E-Skip]]''' : [[Propagation]] through signals being refracted in the E-Layer

'''Eu''' : Europe

V

2010-12-21T05:37:59Z

TimVK4YEH: added vacuum tube

Vintage Radio

2010-12-21T05:33:44Z

TimVK4YEH: added external link

related Wiki pages: [[Electronic Theory]]

==Vacuum tube schematics==

Some vacuum tube (valve) schematics:

[[Image:Vk4yeh_valves.jpg | 700px]]

* further information about vacuum tubes can be found [http://en.wikipedia.org/wiki/Vacuum_tube here]

==External links==

*[http://www.antiqueradio.com/ Antique Radio Classifieds]
*[http://avrs.org.au/ Australian Vintage Radio Society]
*[http://www.southcom.com.au/~pauledgr/ Australian Vintage Radio]
*[http://www.vias.org/basicradio/index.html Basic Radio] Introductory text for valve based electronics.
*[http://www.hvra.org/ Houston VintageRadio Association]
*[http://www.canadianvintageradio.com/ Canadian Vintage Radio Society]
*[http://www.vk2bv.org/museum/ Kurrajong Radio Museum]
*[http://www.stonevintageradio.com/ Stoner Vintage Radio]
*[http://www.vintage-radio.com/ UK Vintage Radio]
*[http://vintage-radio.com.au/ Vintage Radio Australia]
*[http://www.valve.demon.co.uk/ Vintage Radio UK]

{{apparatus}}

Semiconductor

2010-12-19T22:05:19Z

TimVK4YEH: corrected an error - added further info

== Structure of Atoms ==

The simplest model of atomic structure has each atom being made up of a nucleus containing [http://en.wikipedia.org/wiki/Proton Protons] and [http://en.wikipedia.org/wiki/Neutron Neutrons], with [http://en.wikipedia.org/wiki/Electron electrons], circling the nucleus at various energy levels (layers). Each layer can only hold a certain number of electrons - once a layer is full, any extra electrons must occupy a higher layer.

* electrons are very small and have a negative charge
* protons are larger and have a positive charge equal and opposite in size to that of electrons
* neutrons are the largest particle and have no charge
* the number of protons equals the number of electrons, rendering an atom charge free

The outermost layer or shell of electrons is known as the Valency Layer or Valency Shell. It is this layer that determines whether an element is a conductor or an insulator.

'''Insulators''' have the following atomic characteristics:
* the topmost electron layer (the valency layer) is full and can hold no more electrons
* there is a large energy difference between the full layer and the one above it.

The effect of these two characteristics is that for current to flow (achieved in part by the movement of electrons from one layer to another) large energies must be applied to the "full shell" electrons to get them to move up to the next layer. Insulators only conduct when the energy applied to them is enough to move the electrons.

'''Conductors''' (metals) have the following characteristics:

* the topmost electron layer is not empty.
* atoms may share electrons with neighbouring atoms to achieve full outer layers
* atoms are free to move from one atom to another because the energy difference to do so is zero.

'''Semiconductors''' have the following characteristics:

* the topmost electron layer (the valency layer) is not full but when the atoms arrange themselves in a crystalline structure and share electrons the outer shell is effectively full. This renders them to be insulators
* there is a very small energy difference between the full layer and the one above it. The effect of this is that under certain conditions, semiconductors can in fact conduct, because it is relatively easy to dislodge electrons in the outer shell.

==Doping==

The electrical properties of semiconductor materials (the relative ease of dislodging electrons) can be enhanced by the addition of impurities into the crystalline structure. For example adding Boron at 1 part in 100 000 increases the conductivity of Silicon by a factor of about 1000. Doping materials provide either extra electrons - producing N type semiconductors, or a "holes" into which electrons can move - producing P type semiconductors.

==Further reading==

* [http://en.wikipedia.org/wiki/Semiconductor Wikipedia]
* [http://en.wikipedia.org/wiki/List_of_semiconductor_materials Wikipedia list of semiconductor materials]
* [http://www.howstuffworks.com/diode.htm How Stuff Works]

Logging

2010-12-19T07:53:55Z

TimVK4YEH: added rumlog

Related wiki pages [[ADIF]], [[Awards and Certificates]], [[Callsign Databases]], [[Contesting]], [[DXCC]], [[What_is_a_DX_cluster%3F|DX Cluster]], [[QSL Bureaus]], [[Software]],

Logging is the recording of a contact between operators. Logging is done by the operators and any listeners.

Minimum details that should be recorded are; callsign, date and time (typically in UTC), band, frequency, signal strength and readability.

Logging software makes the task easier, by capturing the date and time automatically, and using entered default values for other data.

Some logging software provides control of radios, making it even easier, since values can be captured for band, frequency and signal strength.

Software for contesting can calculate a running score, and produce log files in the format required by contest controllers. Some contest controllers recommend certain software.

A number of websites specialise in providing online interactive logging facilities. These are extensively used in propagation prediction and recording of DX communications, either one or two way. A sample of these sites can be found on the related wiki page [[http://amateur-radio-wiki.net/index.php?title=Logging_sites here]]

== Multiplatform software==

[http://jlog.org/ JLog]

== Software for Microsoft Windows or MS-DOS ==

* [http://www.logger32.net/ Logger32] Amateur Radio logging program, a highly user-configurable general purpose logbook with computer control support for many radios and antenna rotators. It is ''not'' a contesting log, although there is no real reason why it could not be used for such, and does not contain some features that might be found in software specifically designed for contesting.

* [http://docs.win-test.com/wiki/Main_Page win-Test]

== Software for Macintosh ==

[http://www.aetherlog.com/ Aether] for OS 10.4 and above, Power PC or Intel.

'''jLog'''[http://jlog.org/] available for mac, Linux and windows. Offers CAT control for popular rigs. A usergroup can be found [http://jlog.org/phpBB3/ here]

* [http://www.dl2rum.de/rumsoft/RUMLog.html RUMLog]

== Software for Linux ==

* [http://jaime.robles.nu/eklog.php KLog] logging software for Linux/[http://www.kde.org KDE]. Supports DXCC, WAZ, personal awards, integrated DXCluster client. ADIF default support.

* [http://www.qsl.net/pg4i/linux/xlog.html Xlog] Xlog supports cabrillo, ADIF, trlog (format also used by tlf), and EDI (ARRL VHF/UHF contest format) and can import twlog, editest and OH1AA logbook files.

* See also Debian GNU/Linux packages [http://packages.debian.org/tucnak1 tucnak1], [http://packages.debian.org/sid/hamradio/tucnak2 tucnak2], [http://wa0eir.home.mchsi.com/ twlog] and [http://pg4i.chronos.org.uk/linux/xlog.html xlog].

==Other logging software==
* [http://www.arrl.org/lotw/ LoTW: Logbook of the world]. Online repository of logbooks. Especially useful for verifying certificates and awards such as [[DXCC]]
* [[Yfklog]] a perl/curses program that works on multiple platforms
* [[Yfktest]] is a logging program for contesting

{{operation}}

Spectrum Analysis

2010-12-19T07:38:54Z

TimVK4YEH: added links

Related wiki pages : [[Software]]

* [http://www.sdrham.com/argo/index.html Argo]. A QRSS specific tool, but has spectrum display
* [http://www.hamalyzer.com/ Hamalyzer] Spectrum analysis software written with the needs of hams in mind.
* [http://www.moetronix.com/svdownload.htm Spectravue]
* [http://www.qsl.net/dl4yhf/spectra1.html Spectrum Lab]

{{Software}}

Miscellaneous software

2010-12-19T07:30:56Z

TimVK4YEH: moved hamalyzer to spectrum analysis page

Related wiki pages : [[Software]]

This page is for those software packages that do no seem to fit anywhere else. Anything and everything remotely related to ham radio is welcome here.

* [http://paul.wad.homepage.dk/doppler_calc.html Doppler shift calculator] Enter two velocities and wave velocity for calculation of doppler shift.

* [http://www.ajdesigner.com/phpdoppler/doppler_equation_source_moving_forward_wavelength.php Doppler shift calculator]. Various transformations of the doppler shift formula can be selected.

* [http://www.coaa.co.uk/r_meteor.htm R_Meteor] for detecting meteors using their characteristic radio signatures as they enter the atmosphere.

{{software}}----

Software

2010-12-19T07:29:22Z

TimVK4YEH: added new page - spectrum analysis

related wiki pages [[Calculators]], [[Websites]], [[User Groups]]
* [[Antenna Design]]
* [[Circuit Design]]
* [[CW]]
* [[Linux software]]
* [[Logging]]
* [[Mac software]]
* [[Moonbounce (EME) Scheduling (Sked) and tracking software]]
* [[Miscellaneous software]]
* [[Radio and Repeater Control]]
* [[Radio programming software]]
* [[RTTY TOR PSK and other Digital Modes]]
* [[Spectrum Analysis]]
* [[SSTV software]]
* [[Tower design]]
* [[Website Creation]]
* [[Widgets]]

{{software}}

S

2010-12-19T07:02:04Z

TimVK4YEH: added semiconductor

{{glossary}}

==S==

'''[[Semiconductor | Semiconductor]]''' : an element that is normally an insulator but which can, under certain physical conditions, be made to conduct.

'''Series circuit''': Usually used to describe tuned circuits in which the capacitive and inductive elements are in series with each other.

'''Signal to Noise Ratio S/N''' : the ratio of signal power to noise power. The better the S/N ratio, the better the quality of the signal and the easier it is to decode.

'''Simplex''' : Transmit and receive on the same frequency - most often used when communicating directly (not used when operating via voice repeaters).

'''SK''' : Silent Key, a term used in memory of a deceased radio operator. The <span style="text-decoration: overline">SK</span> [[Morse code#Prosign|prosign]] in [[Morse code]] indicates the end of a message.

'''Skip''' : Skip is a radio phenomenon in which signals are reflected or refracted by the atmosphere and return to earth in unexpected places, far away from the normal reception zones. In between transmitter and receiver there is a zone where no transmissions can be heard

'''Skip Distance''' : The shortest distance, for a fixed frequency, between transmitter and receiver.

'''[[Skip Zone]]''' : The distance between the point of no reception and the closest point of reception.

'''S meter''' : A meter on a receiver that displays the relative strength of an incoming signal.

'''SNP''', '''SNPF''' : Shared non-protected pair, shared non-protected frequency. In [[repeater]] coordination, an input/output frequency pair on which no fixed/permanent repeater stations have been deployed. These frequencies remain available for temporary use only within a very limited coverage area by portable public service, emergency, search and rescue operations or short experiments. Individual temporary repeaters on these frequencies are not regionally-coordinated, so are not protected from mutual interference with other temporary repeaters on the same frequency.<sup>[http://www.wnysorc.org/_docs/WNYSORC_SNPF_DEF.pdf]</sup>

'''SOTA''' : [[International_Events#Summits_on_the_Air | Summits On The Air]]. An [[International Events | international event]] in which operators gain points from contacts to and from mountain summits over 500m.

'''Split operation''' : Direct communications where transmit and receive are offset from each other in frequency - most often used by [[DXpedition]] stations which must accommodate large numbers of incoming calls.

'''[[ E-Skip | Sporadic E-Skip]]''': Unexpected and unpredictable propagation using refraction in the E Layer.

'''SSB''' : Single Sideband. A transmission mode used mainly in the HF bands.

'''[[SSTV]]''' : Slow Scan Television - still picture ham transmissions.

'''Standing Wave''': The vector sum of two waves - in ham radio, this most usually refers to the forward and reflected waves in a [[Feedlines | feedline]]

'''Sunspot''' : A region on the sun where an electromagnetic "storm" is happening. These have an effect on [[Propagation | propagation]]

'''[[Sunspot Cycle]]''' : A cycle of approximately 11 years in which the number of sunspots increases and decreases. The broader sunspot cycle is 22 years as the polarity of the sunspots reverses every 11 years.

'''Susceptance''' : the reciprocal of [[Reactance]], measured in Siemens; symbol S

'''[[SWL]]''' : Shortwave listener. While SWL's do not operate licensed transmitting stations, some are using equipment capable of receiving both radioamateur and broadcast signals. For both, SWL's may submit reception reports in order to receive [[QSL]] cards. On VHF/UHF and above, one who can receive (but not transmit) is a scanner operator.

'''[[SWR]]''' : Standing Wave Ratio. The ratio of the height of a standing wave on a transmission line to the height of an adjacent node.