Wavelength


It is the distance travelled by a radio wave in free space, during a single complete cycle. This value is fundamental when designing antennas and can be computed with this simple formula: L=300/F where F is the frequency in MHz and L is the wavelength, in meters.
The ham bands are usually designed with their approximate wavelength. For example the 20 m band (nominally 15 MHz) extends from 14 to 14.35 MHz.
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