100MHz
100 megahertz (100 MHz) is a unit of frequency equal to 100,000,000 cycles per second. It lies in the Very High Frequency (VHF) portion of the radio spectrum, roughly between 30 and 300 MHz. The corresponding wavelength is about 3 meters (c/f ≈ 3.0 m), and radio waves at this frequency propagate mainly by line of sight, with some reflection from terrain and objects and limited atmospheric refraction.
In many regions, 100 MHz lies within the FM broadcast band, which runs from about 88 to
Technical and practical aspects: Antennas for 100 MHz are relatively compact by broadcast standards; a quarter-wavelength
Regulation: As with other radio frequencies, use of 100 MHz requires authorization from national communications authorities.