r/DMR

Our organization has utilized UHF DMR for a number of years. Recently we opted to add encryption (low level ADP) onto all of our talkgroups. We successfully programmed every radio with the same codeplug, but have started noticing issues. Many individuals say that they try to answer someone when they called them but they cannot hear them. Other individuals state that no one can hear them when they call others. Each time they are getting a grant from the repeater.

These are Motorola XPR7550e radios with a single site.

Thanks in advance.

I'm new to dmr. I saw a recommendation for the hamspot 5 hotspot. Seem like a bright kid. Has anyone used the hamspot and what do you think of it?

On a local DMR repeater, I have been observing busy signals all day, but nothing came up. I know the Color Code is correct because I saw previous call logs hitting that Color Code. I have the radio on anytone digimonitor for any calls.

what am i missing?

I have a GD-88 that I bought from Radioddity. I am having the worst time programming it with the CPS. I am struuglijng with the concepts and then get confused and give up. I’ve been repeating this cycle for very couple of months. Is the radio a good one and do others have problems? I did the 2025 firmware update so I’m good there. Thinking of giving up and getting an easier radio? If you have insights into this radio I’d love to hear them.

I've been working on VoxDMR, a desktop hotspot-less DMR client. It connects to Brandmeister over the Rewind protocol, captures audio from your mic, encodes AMBE+2, and TX/RXs to a talkgroup, same idea as DroidStar / BlueDV.

What it does:

- Connects to a Brandmeister master, picks a TG, PTT and you're on the air

- Plays back received audio through your default output

- Built-in TOT (time-out timer), level meter, basic UI in egui

- Windows / Linux

The vocoder situation:

No firmware ships in the binary. On first launch you get a setup card that fetches the two firmware files (D002.032.bin from md380.org, d02032-core.img from the upstream md380_vocoder_dynarmic repo) directly to your machine, SHA-256 verified. Nothing proxied through me. If you can't reach those URLs you can point it at local copies.

Site: https://voxdmr.jcalado.com

Happy to hear feedback, especially from anyone who's wrestled with AMBE on desktop before. 73!

Decided to pick up a DMR radio and hotspot since my local 2m is dead. I fired up DMR and hotspot last night, and I'm shocked at how little activity I've heard. I've been monitoring worldwide and north america primarily and occasionally I hear a call out (lots of kachunking), but I honestly expected much more traffic.

I'm I doing it wrong or is this as dead as my 2m?