The referee transmitter offers sports officials the latest digital/analog hybrid technology in a convenient, weather-resistant package. Using the REFSWITCH external belt-pack switch assembly, the audio in the REFUM transmitter can be muted or engaged, without pops or clicks in the audio.
A 5-pin input jack provides taps for low impedance dynamic mics, electret lavalier mics (positive or negative bias) and a pin designated for audio muting using an external switch. Input gain is adjustable over a 43 dB range to perfectly match the audio input level for optimum modulation, minimum distortion and maximum signal to noise ratio. Input levels are accurately indicated by two LEDs on the control panel.
