Frequency

Frequency is the number of cycles a radio wave completes in one second. Frequency is measured in hertz (1 cycle per second equals one hertz). Radio frequencies are described as multiples of hertz:


 * kHz, kilohertz: thousand cycles per second;
 * MHz, megahertz: million cycles per second;
 * GHz, gigahertz: billion cycles per second.

The frequency of a radio wave is the inverse/reciprocal of its period. For example, if a wave had a period of 0.1 seconds, its frequency would be 10 hertz.