I too have a TK3101 and have been Googling like mad ... hence finding your post and signing up.

I've got mine connected and powered via an Autocom Pro Sport 7 on my Blackbird.

I've had the comms about 2.5 years and had it on a previous bike. I didn't get around to moving it onto my Blackbird until a few weeks ago in preparation for a big Blackbird gathering/ride out.

It turns out that all the people I'd used it with before must have been on Kenwood’s as I've never previously had a problem. On this ride out I could be heard but I couldn't hear them. It was only after the ride and finding out that people heard me singing did I realize I was actually transmitting!

My problem was they were all on CTCSS tone free channels and I had the default Kenwood "QT" tone applied.

I've just managed to rig up a power source (I have no battery) and get the software (KPG54D) working and after a lot of fiddling I have removed the QT tones from the first 8 channels. Some TK3101's allow you to turn off tones but my one doesn't which was a real pain. The software and some HEX editing sorted it out though.

Have you had issues talking to other people on yours or have your programmed it ?

Glad to see you've got your issue sorted. In trying to solve mine I get coming across this forum so I thought I'd sign up.

Despite the TK3101 being a really popular radio there's not much info around really. I think it being 10+ years old means they're disappearing. I have the manual and the Servicing Manual in PDF format but that's about it.