A wave is an ultrasound which itself moves in the space. An electric AC produces electric and magnetic AC, which both reproduce themselves perpendicular on each other.
Each electromagnetic range is characterised by two parameters: frequency and wave length.
The frequency is the number of cycles per second.
The entity of frequency is hertz (Hz).
The wave length is the distance between two successive cycles of the wave.
Frequency and wave length depend on each other: the higher the frequency, the shorter the wave length.
Electromagnetic waves have a speed of 299339 kilometres per second (in air, vacuum and gases).
There-for, if we divide 300(close enough) by the frequency in MHz, we get the wave-length in metres. For example the wavelength at 100MHz is 3 metres.
FunFiles Satellite Team