ABSTRACT
Outside of recording and broadcast studios, thewirelessmicrophone is virtually indispensable. The
technology dates back to the 1960s, and great strides in performance quality and overall reliability
have been made since that time. Television, staged music and drama performances, religious
services, and public meetings all make use of wireless microphones; and the ultimate freedom of
movement offered by the technology is seen as a boon by everyone involved in live performance.
The earliest wireless microphones employed the commercial FM (frequency modulation) band
at very low output power, and consumer FM tuners were used for signal recovery. In time, the
Federal Communications Commission (FCC) allocated specific frequency bands in the VHF
and UHF television ranges for wireless microphones as well as for other short-range
