@spatulacity I don’t own your radio, but I didn’t want your question to go unaddressed for too long. Is it correct to say that the radio with handmic works correctly, to engage PTT and transfer voice over mic, and to allow you to listen when PTT is off?
@Constrainted that is all correct! The hand mic receives and sends when the PTT is depressed as expected.
If I could only figure out what exactly the PTT button is “doing”, electrically speaking. In other words, rather than shorting pin 1, perhaps pressing PTT sends a signal like the Menu, Up, Down, etc. buttons? And then, of course, I’d need a way to replicate that “signal”.
I have a limited understanding of electronics, so my apologies if I’m using the wrong terminology. Thank you for your help!
Then what they call PTT line is not what normal PTT is.
If there is a support contact for the manufacturer or distributor I’d ask them about how the radio can be keyed up from accessories.