The Model C301A utility microphone radio adapter provides in interface between David Clark's 3000 series NR headsets and a mobile radio system. It is compatible with most mobile radios that require carbon equivalent microphones. For radios that do not provide DC bias on the microphone audio line, a switch battery voltage of 13.8 VDC is required at the connector. The sturdy belt clip provides users with freedom of movement while not encumbering access to the PTT switch.
