WebSDR – internet connected Software-Defined Radios

Re:WebSDR – internet connected Software-Defined Radios by rlex on Thursday October 26, 2023 @08:05PM (#38033215)

for open source alternative take a look at https://www.openwebrx.de/

Can also demodulate digital modes (DMR, YSF, etC) and it have nice, modern UI.

WebSDR have a weird list of requirements if you want to get install file - should open instance to public, provide lots of info, etc etc etc. It's not just closed-source.

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Re:WebSDR – internet connected Software-Defined Radios by imroot on Thursday October 26, 2023 @08:42PM (#38033426)

I thought that it couldn't demodulate DMR and other modes unless it had the hardware to do so. Feel free to correct me if I'm wrong, though.

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Re:WebSDR – internet connected Software-Defined Radios by snvzz on Friday October 27, 2023 @02:07AM (#38035209)

DMR can definitely be handled by software.

I have done this with a crude rtl-sdr stick.

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Re:WebSDR – internet connected Software-Defined Radios by rlex on Friday October 27, 2023 @10:49AM (#38039219)

You definitely can, but legality of such procedure is questionable. DMR uses AMBE codec, which require licensing from DVSI, but you can find open-source implementation on github (mdelib, jMBE). Projects such as DSD-FME[1], which allows you to decode much more than just DMR (P25, NXDN or SDRTrunk[2], which allows you to listen to trunking systems (p25, dmr tier 3 and much more) uses software implementation. OpenWebRX users software decoder too https://github.com/jketterl/digiham

[1] https://github.com/lwvmobile/dsd-fme

[2] https://github.com/DSheirer/sdrtrunk

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