W - Whiskey - di-dah-dah
W.
WARC.
World Administrative Radio Conference. Also used to reference the WARC bands 10, 12 and 17 meters.
Watt (W).
The unit of power in the metric system. The watt describes how fast a circuit uses electrical energy.
Wattmeter.
Also called a power meter, a test instrument used to measure the power output (in watts) of a transmitter. A directional wattmeter measures both forward and reflected power.
Wave Antenna.
Wavelength.
Often abbreviated l (lower case 'L') or λ (lambda). The distance a radio wave travels in one RF cycle. Wavelength is the length of a wave from one crest to the next usually measured in meters. In Radio usage this refers to the wavelength of the wave that acts as a carrier for the audio (the sound you can hear) signal. Wavelength can be calculated from the following formula: Wavelength=Velocity/Frequency
Where:
Frequency is the number of repetitions that a wave makes per second, measured in Hertz.
Velocity is the speed of the wave, radio waves travel at the speed of light - 300,000,000 meters/second
Wavelength is the length of a wave from crest to crest, measured in meters
WBFM.
WFM.
White Noise.
Broad Spectrum Noise, that is to say the hiss and crackle that can be heard on a receiver when not tuned to a station.
WIA.
Wireless Institute of Australia, a national amateur radio organization in Australia.
Wideband FM (WBFM / WFM).
An FM transmission mode. The deviation from the center frequency is +/-75kHz and is used by FM broadcast stations for high-fidelity sound.
WIRES.
Wide-Coverage Internet Repeater Enhancement System (Yaesu internet connection protocol).
WPM.
Words Per Minute.