What frequencies do radar use?

Radar Frequency BandsBand DesignationFrequency RangeTypical UsageS2-4 GHz.Moderate-range surveillance, terminal traffic control, long-range weatherC4-8 GHz.Long-range tracking, airborne weatherX8-12 GHz.Short-range tracking, missile guidance, mapping, marine radar, airborne interceptRadar Frequency Bands www.aewa.org › Library › rf_bands

RADAR is an electromagnetic system for the detection and location of target objects such as aircraft, ships, spacecraft, vehicles, people, and the natural environment which can reflect a signal back . It uses electromagnetic radio waves to determine the angle, range, or velocity of objects.

Most radars, in practice, operate between 400 MHz to 36 GHz ; however, there are some notable exceptions. The optical and radio portions of the electromagnetic spectrum occupy positions coincidental with two important transparent bands in the Earth’s atmosphere and ionosphere.