Mastodawn

Does anyone know of an #SDR application for #Linux that will loop through a list of predefined frequencies, like a scanner? I know a couple exist for Windows but I haven't found any for Linux.

#AmateurRadio #HamRadio

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Heidi 6d ago

@arth
There are SDR applications for Linux, but I’m not sure if you can predefine frequencies… I only got one of the two recommended apps working I’ll have to look at it later.

Actually the one I used was really slow to seek through frequencies, like you could type in a frequency to jump right to it but scrolling around was really slow…

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Art H.

@heidi Yeah, I've been using Gqrx, and my experience with it is as you described. Is that what you're using? I also have SDRangel installed but can't get it working. It looks like it's way overkill for my rather light usage requirement anyway. Been fiddling around with GNURC and some available flowgraphs others have developed. It seems like some fun can be had, but requires a steep learning curve that I can't afford right now.

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Heidi 6d ago

@arth

RTL-SDR recommended SDR++ or Gqrx for Linux.

I believe SDR++ is the one I didn’t get working (couldn’t get it to build after installing dependencies, I believe, decided to try Gqrx and maybe come back to it and when Gqrx worked I forgot about it.)

So Gqrx has got to be the one I’m talking about (oh yeah now I see a screenshot, that’s the one.) Really slow to just scan up and down frequencies and it’s even kind of a pain to hop around by typing in a frequency.
Also I would love to be able to zoom out more, it’s like you can only see so many megahertz at a time which makes it even harder to scan around for interesting signals…

All that said, I played with it for a few hours one evening so maybe it is more usable if I learn the UI more…

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Art H.6d ago

@heidi Yeah, it's frustrating to try to scroll around the spectrum with Gqrx, but I believe I can make it do what I want with a plugin. Basically the plugin would loop through the freqs I have bookmarked, then wait a specified number of seconds before moving on, or wait for the signal strength to drop below a threshold before moving on, like a squelch. This is exactly what I'm looking for.