Leaderboard

Many repeaters offer three choices for PL (etc.) output: a) generate the selected tone on the output. pass the received tone through to the output (usually about 3db down). c) filter out the received tone altogether. Depending on the radio and the programming/settings interface, you might be able to combine some of the above options. For example, pass-through received PL and add another PL on output. Or filter out the received PL and add again on the output. YMMV

Not surprised that it's the first time you've seen that. I've never heard of that arrangement before.

Let me just throw in that even if you're using Part 90 equipment under GMRS, there's nobody making a case that DMR digital operation is legal within the GMRS band. I'm on the side of people who believe that the FCC is aware & acknowledges that people are using Part 90 equipment, and they've done nothing to discourage the use.