V - Revision history

TimVK4YEH: added vy

2011-01-29T10:05:37Z

added vy

← Older revision		Revision as of 03:05, 29 January 2011
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	'''VXO''' : Variable crystal oscillator		'''VXO''' : Variable crystal oscillator

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

TimVK4YEH: added vacuum tube

2010-12-21T05:37:59Z

added vacuum tube

← Older revision		Revision as of 22:37, 20 December 2010
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	'''VAC''' : Volts Alternating Current.		'''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.		'''Varactor Diode''' : a component whose capacitance decreases as the reverse bias voltage is increased.

Carlb: /* V */

2009-11-16T15:07:36Z

← Older revision		Revision as of 08:07, 16 November 2009
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	'''VFO''' : Variable Frequency Oscillator		'''VFO''' : Variable Frequency Oscillator

	'''Velocity Factor''' : the speed at which radio waves travel in a particular [[Feedlines \| feedline]], expressed as a ~~percent~~ of the speed of light		'''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		'''[[VHF]]''' : Very High Frequency. Frequencies in the range 30MHz to 300MHz

Carlb: /* V */

2009-11-16T14:42:14Z

← Older revision		Revision as of 07:42, 16 November 2009
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	'''VEC''' : Volunteer Examiner Coordinator		'''VEC''' : Volunteer Examiner Coordinator

	'''Vertical ~~Polaraization~~''' : Used to describe a transmission or antenna in which the electric field is propagated perpendicular to the surface of the Earth.		'''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		'''VFO''' : Variable Frequency Oscillator

TimVK4YEH: vk

2009-07-11T09:31:23Z

← Older revision		Revision as of 02:31, 11 July 2009
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	'''VSWR''' : Voltage standing wave ratio		'''VSWR''' : Voltage standing wave ratio

			'''VK''' : Australia

	'''VXO''' : Variable crystal oscillator		'''VXO''' : Variable crystal oscillator

Carlb: /* V */

2009-06-18T15:03:42Z

← Older revision		Revision as of 08:03, 18 June 2009
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	'''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.)		'''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.)

	'''VE''' : Volunteer Examiner Coordinator		'''VEC''' : Volunteer Examiner Coordinator

	'''Vertical Polaraization''' : Used to describe a transmission or antenna in which the electric field is propagated perpendicular to the surface of the Earth.		'''Vertical Polaraization''' : Used to describe a transmission or antenna in which the electric field is propagated perpendicular to the surface of the Earth.

Carlb: /* V */

2009-06-18T14:27:44Z

← Older revision		Revision as of 07:27, 18 June 2009
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	'''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.)		'''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.)

			'''VE''' : Volunteer Examiner Coordinator

	'''Vertical Polaraization''' : Used to describe a transmission or antenna in which the electric field is propagated perpendicular to the surface of the Earth.		'''Vertical Polaraization''' : Used to describe a transmission or antenna in which the electric field is propagated perpendicular to the surface of the Earth.

Carlb: /* V */

2009-06-18T02:55:57Z

← Older revision		Revision as of 19:55, 17 June 2009
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	'''VIS''' : Vertical Interval Signalling. Digital encoding of the transmission mode in the vertical sync portion of an [[Slow-Scan Television (SSTV) \| SSTV]] image.		'''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		'''[[Bands \| VLF]]''' : Very Low Frequency 3 - 30 KHz

Carlb: New page: {{glossary}} ==V== ''' Volt''' : (V) The unit of electric potential difference (Voltage) between two points. '''VA''' : Volt Amperes - measure of apparent power. '''VA...

2009-06-12T21:52:41Z

New page: {{glossary}} ==V== ''' Volt''' : (V) The unit of electric potential difference (Voltage) between two points. '''VA''' : Volt Amperes - measure of apparent power. '''VA...

New page

{{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.

'''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.)

'''Vertical Polaraization''' : Used to describe a transmission or antenna in which the electric field is propagated perpendicular to the surface of the Earth.

'''VFO''' : Variable Frequency Oscillator

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

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

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

'''VOX''' : Voice Operated Transmit

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

'''VXO''' : Variable crystal oscillator