Motorola GM300 and DMR repeater

I have done this quick video how to connect motorola GM300 to MMDVM modem for dmr use.


1 comment to Motorola GM300 and DMR repeater

  • Erik

    Great job!!! I was looking for a solution how to connect and I found you video. I don’t find your email anywhere, and I know that is a long shot but anyway, I have a Motorola GM300 UHF radio (M34GMC29C3AA, HLE 8300A2 board) which I will use for MMDVM TX station. Is this modification necessary for every GM300 station and if you have time, would you look at the schematic for this station and give some clues or element sizes and what else to do now that you have experience in connecting this station. Thank you in advance.

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