Tried the search function here first, but no luck.
We've got a KX-155 that seems to be giving us some problems. It's Comm 1, and we just got the airplane back from having some engine work done. Before this, it was fine.
It started with not being able to transmit. It would key up, but you could not hear any voice being transmitted. Turn it off, reset the breaker a few times... then all of a sudden it'll work fine. Sometimes this happens, sometimes it doesn't.
Then while flying home IFR the other day talking to ATC just fine for about an hour, hearing a lot of the transmissions, I get a nasty call from ATC. I answer wondering why they're mad, and they inform me that they've been trying to reach me... They said they've even had another plane trying to reach me. I had no clue, and could hear other transmissions on frequency. So I tuned #2 comm to that frequency also and used both to listen, #1 to transmit.. that worked fine.
Well, we went to our mechanic and he reseated the radio thinking maybe one of the connectors was just a little loose.
Yesterday, went to another airport with a tower, and as they're confirming information, their transmission completely cut out. I was prepared for this and had #2 ready in case, so I just did the same as above and continued on.
Think it's time for a new radio? Anything else I can try to narrow down where this problem might be coming from?