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For my issue, I updated in another thread on my experience and resolution. My blocking issue was that the radio was TX locked to commercial freq's, and despite programming to the correct repeater frequency pairs in channels, it was setting them to 450.000Mhz in the radio. Quick two small side...

Has anyone successfully configured this radio with a Ham DMR system? I picked one of these up and I've been banging my head against the wall, with a working and valid UV390 codeplug and can't get this radio to bring up any repeater talkgroups or receive/decode any talkgroups. The same codeplug...

Thanks, I had run across the same thread as well, however a recent message from GRE support indicated that discriminator audio could be found on TP3. I'll have to do some tracing on the board from the TP to the Discriminator IC and cross reference the pin out once I have a radio in hand. I'll...

Does anyone have accurate information on where to obtain discriminator audio on a GRE PSR-400. I have seen information that it may be either TP3 or TP4, but haven't confirmed either. Specifically looking for anyone who has either done and confirmed this, or has confirmed on a schematic...