I upgraded from version 3.1.5 to 4.1.8.
When I was running 4.1.8 I was not able to activate the PTT IN through the RCA connectors.
I tried this through the Icom 756 PRO radio as it was originally configured for 3.1.5 , the PTT IN A did not activate the light on the AG nor did the software change to a red indication. I was also able to change the antenna with PTT Asserted from the radio. (No RF of course)
I then connected a simple switch that shorted the center conductor of PTT IN A to the shield. The results were the same. I tried the switch on PTT IN A and PTT IN B with no reaction from the AG.
I then downgraded back to version 3.1.5, the original PTT cable was reconnected and working as expected.
Is the RCA PTT connector working in version 4.1.8?
Thank You.
N3FB - Frank Bobro