HAVE QUICK (also HAVEQUICK, short HQ) is a frequency-hopping system used to protect military UHF radio traffic. Since the end of World War II, U.S. and Allied military aircraft have used AM radios in the NATO harmonised 225–400 MHz UHF band for short range air-to-air and ground-to-air communications. During development and the procurement of UHF...
A UHF jam-resistant radio.