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Questions tagged [dmr]

Digital mobile radio, a digital voice mode found on VHF and UHF bands.

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Digital Modes Transmission Traffic Comparisons

I am looking for data that compares the number of transmissions per month or year among the various digital modes such as DMR, D-star and Fusion. I want to see how popular these technologies have ...
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Help with ZaStone D900

I ordered a ham radio from eBay (doesn't matter which one) and I have gotten a completely different one than what I ordered. I'm quite new to amateur radio so please excuse my innocence/idiocy. I ...
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DMR Repeated Audio Packets

I have been performing several weak signal tests using the DMR mode. One of three things seems to happen when a signal gets weak. Audio is completely dropped for duration of weak signal. Audio ...
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What are the key differences between Hytera DMR and MotoTRBO?

What I'm really curious about is if anyone can provide a high level overview of the two technologies. I know that they are both utilizing the DMR standard, but from what I have read is that the way ...
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636 views

Modulation details of Digital Mobile Radio (DMR)

I'd like to implement a digital demodulator for Digital Mobile Radio (DMR). Note I'm not concerned about decoding of the audio: I realize that requires a proprietary codec. What are the details of ...