EMR 440-470 MHz 4 cavity Pass Notch duplexer. 3 to 10 MHz spacing. 0.8-1.5dB insert loss, 150 watt, N/F conn. EMR pass-notch duplexers allow for the simultaneous use of a transmitter and receiver on a single common antenna. Our signature square cavities provide greater Q while requiring less space than conventional round cavities.
