Radiotaajuus
Radiotaajuus, often abbreviated as RF, refers to the part of the electromagnetic spectrum that ranges from about 3 kilohertz (kHz) to 300 gigahertz (GHz). This range encompasses radio waves and microwaves. These electromagnetic waves are characterized by their frequency, which is the number of wave cycles that pass a point per second, and their wavelength, which is the spatial distance over which the wave's shape repeats.
RF energy is utilized in a wide variety of technologies. Radio broadcasting, television transmission, and wireless
The propagation characteristics of radio waves vary significantly across the RF spectrum. Lower frequencies can travel