User's Manual

C-5000 COMMUNICATION MANAGEMENT CONTROLLER
INSTALLATION MANUAL
Page 4-80 Publication No. 150-041118
Section 4 – Electrical Installation Rev C
May 2006
Pin(s) - Signal Name
21 - UNSQUELCHED MAIN AUDIO
This line provides unsquelched audio from the Main Receiver. The frequency
response is flat from 60 Hz to 5 kHz. A received signal of 1 kHz tone at ±3 kHz
deviation will produce approximately 0.6 Vrms into a 20k Ohm load. The RT-
138F and RT-406F Frequency Range is approximately 1 Hz to 6 kHz.
60 - UNSQUELCHED GUARD AUDIO
This line provides an unsquelched audio output of the Guard Receiver for use
with external audio decoders. The frequency response is approximately flat from
60 Hz to
5 kHz. Standard 3 kHz modulation of a 1 kHz tone will produce approximately 0.6
Vrms into a 20k Ohm load.