Wavelength — The physical length of one radio wave.
Why bands have names like 20 meters. Divide 300 by the frequency in MHz to get the wavelength in meters — and antenna sizes follow directly from it.
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Related words
- CTCSS / PL tone — A sub-audible tone that opens a repeater.
- Ionosphere — The layer that bounces HF signals back to earth.
- Solar flux — A number that tracks solar activity.
- SSTV — Slow-Scan Television.
- FM — Frequency Modulation. VHF and UHF voice.
- Frequency — How fast a radio wave oscillates.
- CW — Continuous Wave. Morse code.
- Watts — Transmit power.