[AMRadio] Muting the R390 on transmit

Grant Youngman nq5t at tx.rr.com
Tue Dec 1 22:19:05 EST 2009

It's terminal 9 (first terminal on the left) of the rightmost terminal block (looking from the rear of the radio), marked BRK IN.

Ground this terminal to mute the receiver when the "Break In" switch is set to ON.


On Dec 1, 2009, at 8:51 PM, Brett Gazdzinski wrote:

> Its been a while since I had mine, but think there were terminals on the 
> back marked 'mute'.

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