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@drdeputy I also have not received a request response to that repeater. As a GMRS noob myself, do you have a good listing of repeaters and access contacts for DSM and surrounding areas? Have not found much yet in the way of online documentation. Thanks!

This issue may have to do with your MMDVM only supporting simplex/single-timeslot. A few friends, all using OpenSPOTs can't decode audio no matter what is tried. I run duplex spots and haven't had much issue. Finally loaded up an older simplex spot and boom, no audio decode and every other...

Apples / Oranges.

Loaded SDRTrunk on a Win10 machine with a single dongle and had it running on a P25 simulcast in my county in about 10 minutes. Very good decode. DSD+ I wasn't able to make it work with a great amount of stability. After the Win10 install, I decided to try on a Linux Mint install and it is my...

I'm doing DMR with a minimum of issue. I have to chase the DMR output of a hotspot using PPM adjustment (set to auto-correct) to get the signal completely inside the frequency selected. Yes. MMDVM boards are generally several hundred hz above or below desired frequency. I have an older E4000...

What is the sample rate on your tuner set for? If it is too narrow to fit the system frequencies it will look for another dongle to do the work, if none located you get error tuner unavailable. Try 2.048 or higher if your SDR will support it. Good luck.

Pickup a RTL-SDR.COM dongle and search out SDRTrunk on GitHub.com. It's not a bad way to start listening. I'm in Dallas County and being right in the middle of the three simulcast towers makes my 996 pretty useless for that system. Enjoy.