Clear-com TW-47 User Manual download pdf (Page 23)

3-1TW-47 TWO-WAY RADIO INTERFACE

3 SPECIFICATIONS

TW-47 TECHNICAL SPECIFICATIONS

dBu is an absolute measurement. 0 dBu is referenced to

0.775 volts RMS

RADIO TO PARTY LINE

LINE CHARACTERISTICS

Frequency Response 200-20KHz ± 3dB

Max Gain >=-5dBu

Distortion <=0.3%

Noise <=-70dBu

Max Level Before Clipping >=+17dBu

Green LED Threshold -22dBu ± 3dB

Red LED Threshold -16dBu ± 3dB

Input Impedance: 400

Ω ± 100Ω

PARTY LINE TO RADIO

LINE CHARACTERISTICS

Frequency Response 200-8KHz ± 3dB

Max Gain J7 ON, J8 ON -12dBu ± 3dB

Max Gain J7 OFF, J8 ON +2dBu ± 3dB

Max Gain J7 OFF, J8 OFF +27dBu ± 3dB

Distortion <=0.3%

Noise <=-50dBu

Max Level Before Clipping >=0dBu

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Clear-com TW-47 User Manual Page 23