SDRPlusPlus VS trunk-recorder

I'm using newest SDR++ nightly built. win x64. Anyone can resolve this problem? Mabye I'm not using the right driver for SDR++? If so where can I find the right one?

SDR++ from GitHub (https://github.com/AlexandreRouma/SDRPlusPlus) runs on M1

Ah, I see what you mean, it's been a while since I looked at their repo. They don't seem to have one for ubuntu jammy yet in their stable release branch. But they do have an ubuntu jammy one in their nightly builds https://github.com/AlexandreRouma/SDRPlusPlus/releases/tag/nightly. I did give it a go and it seems to work okay, but obviously you would need to try it more thoroughly than I have.

What incompatibility? Do you think that this code https://github.com/AlexandreRouma/SDRPlusPlus doesn't support ARM?

SDR++

Some software tips. There is a newer version of SDR++ that includes an IF filter for NOAA APT signals that should help improve things: https://github.com/AlexandreRouma/SDRPlusPlus/releases/tag/nightly That gives you a new checkbox under the Radio section called "IF Noise Reduction" with a dropdown to select the type of reduction (where you select 'NOAA APT'). You can also use the "Decimation" option in the Source section to give a bit better SNR. From what I've read you get a 3db reduction in noise every time you double the decimation level. If you can't get rid of the noise around 137.1MHz maybe try going for NOAA 15 or 18 since those are at higher frequencies, hopefully away from that noise.

If your area is P25, then https://github.com/robotastic/trunk-recorder with https://github.com/chuot/rdio-scanner makes a great setup.

Looks like its available for mac aswell. I think I can use this solely for listening and recording https://github.com/robotastic/trunk-recorder

I would search the issues on GitHub and possibly submit an issue if you don't find the answer that way. https://github.com/robotastic/trunk-recorder/issues

trunk-recorder can do this https://github.com/robotastic/trunk-recorder while originally designed for trunked systems, it can handle conventional systems as well. Which pairs nicely with https://github.com/chuot/rdio-scanner which provides a nice web/phone app interface to listen to, that includes the ability go back thru a call archive.

I've toyed with monitoring the Portland system using GitHub - robotastic/trunk-recorder: Records calls from a Trunked Radio System (P25 & SmartNet), which can monitor and record all calls, and yeah, it puts out so many messages even in normal times. And even without PPB dispatch and one of the voice frequencies, I think I got GBs of audio per day.

Trunk Recorder GitHub repository (software used to capture and record calls)

I'm using this open source project https://github.com/robotastic/trunk-recorder to do the recording, but here is a screenshot of GQRX to give you an idea of how software radio works- instead of hardware designed to listen to one channel, it samples a big chunk of the spectrum and then uses software to "tune" the individual channels- so it can listen to everything at once, no need to channel-hop, etc.