Dictionary of Ham Radio Terms - Revision history

TimVK4YEH: am

2011-04-02T08:54:53Z

← Older revision		Revision as of 01:54, 2 April 2011
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	'''AMSAT''' : The name for amateur radio [[Satellites \|satellite]] organizations world-wide, but in particular the Radio Amateur Satellite Corporation.		'''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.		'''Analog''' (also analogue): a continuously varying signal.
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	'''[[Antenna tuner \| Antenna Tuner]]''' : A device used to match the output [[Impedance \| impedance]] of a transmitter to that of an antenna.		'''[[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.		'''Anti-VOX''' : Transceiver circuitry used in voice-operated (VOX) stations to prevent audio from the receiver's speaker from actuating the voice-operated transmitter.

TimVK4YEH at 08:47, 6 January 2011

2011-01-06T08:47:39Z

← Older revision		Revision as of 01:47, 6 January 2011
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	'''[[ATV]]''' : Amateur Television - "moving picture" ham TV transmissions.		'''[[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.		'''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.		'''Azimuth''' : The horizontal direction (angle) measured clockwise from North.

TimVK4YEH: added asl

2011-01-06T08:47:10Z

added asl

← Older revision		Revision as of 01:47, 6 January 2011
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	'''[[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.		'''[[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.		'''[[Attenuators \| Attenuator]]''' : A resistive device to reduce the amplitude or power of a signal.

TimVK4YEH: added azimuth

2011-01-06T08:42:20Z

added azimuth

← Older revision		Revision as of 01:42, 6 January 2011
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	'''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.		'''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}}		{{operation}}

TimVK4YEH: added internal link

2010-11-05T06:06:16Z

added internal link

← Older revision		Revision as of 23:06, 4 November 2010
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	'''Antenna Switch''' " A switch used to change the output of a transceiver from one [[Antennas \| antenna]] to another.		'''Antenna Switch''' " A switch used to change the output of a transceiver from one [[Antennas \| antenna]] to another.

	'''Antenna Tuner''' : A device used to match the output [[Impedance \| impedance]] of a transmitter to that of an antenna.		'''[[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.		'''Amplifier''' : A device that is used to increase voltage, current or power.

TimVK4YEH: spelling error

2010-02-24T01:13:14Z

spelling error

← Older revision		Revision as of 18:13, 23 February 2010
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	'''AC''' : Alternating Current		'''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 id used to represent the amplitude of the original wave.		'''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.		'''[[ADIF]]''' : Amateur Data Interchange Format, a standard specification for format of exported logbook files.

TimVK4YEH: afsk

2009-06-30T09:58:51Z

afsk

← Older revision		Revision as of 02:58, 30 June 2009
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	'''AFC''' : Automatic Frequency Control - used to prevent drift in FM receivers		'''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		'''AGC''' : Automatic Gain Control - a feedback system to reduce fading by automatically adjusting gain

Carlb: /* A */

2009-06-18T13:44:58Z

← Older revision		Revision as of 06:44, 18 June 2009
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	'''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 id used to represent the amplitude of the original wave.		'''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 id 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.		'''Admittance''' : The reciprocal of [[Impedance \|impedance]] of a component in a series or parallel tuned circuit.
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	'''AGC''' : Automatic Gain Control - a feedback system to reduce fading by automatically adjusting gain		'''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.		'''ALC''' : Automatic Level Control - a feedback system in the transmitter output amplifier used to prevent overload.
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	'''Analog''' (also analogue): a continuously varying signal.		'''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.		'''[[Antennas \| Antenna]]''': a device to either radiate radio signals or to receive them from another station.
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	'''[[Attenuators \| Attenuator]]''' : A resistive device to reduce the amplitude or power of a signal.		'''[[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.		'''[[ATV]]''' : Amateur Television - "moving picture" ham TV transmissions.

Carlb: /* A */

2009-06-18T02:59:49Z

← Older revision		Revision as of 19:59, 17 June 2009
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	'''AMTOR''' : A specialised form of RTTY protocol. An acronym for AMateur Teleprinting Over Radio or AMateur Teletype over Radio.		'''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.		'''[[APRS]]''' : Automatic Position Reporting System, Automated Packet Reporting System.

Carlb: /* A */

2009-06-13T23:37:37Z

← Older revision		Revision as of 16:37, 13 June 2009
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	'''AC''' : Alternating Current		'''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 ~~inot~~ a digital signal, in which a series of numbers id used to represent the amplitude of the original wave.		'''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 id used to represent the amplitude of the original wave.

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