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MCS2000 RX audio out vs Maxtrac RX audio out


Regular Member
Mar 20, 2021
When I interface my maxtrac to my repeater controller it passes clean and clear audio to the controller and out the transmitter... however when I connect a mcs2000 using pin 11 I get nothing out of the transmitter but a dead key. When i connect pin 25 I get static. I remember on my maxtrac I had a Jumper that I had to reposition to get audio to pass. Is there a similar jumper on the mcs2000 that im missing or a setting in the software?

The MCS2000 is a 110W VHF model.


Prolific Contributor
CS Forums $upporter
Mar 1, 2012
What pin on the 16 pin maxtrac connectors are you pulling audio from and same with pins on the MCS DB25?