Gqrx VS SDRangel

If you don't need the web interface and your usual desktop SDR software supports rtl-sdr tcp mode, you can easily set up a small board that calls rtl-sdr with the appropriate parameters so that it will wait for a remote connection from the above software, not unlike what happens with WebSDR, but you would be using your usual desktop SDR application which would be native and much more snappy than a web browser. ... - Source: Hacker News / 6 months ago

GQRX works pretty well for me. There is also CubicSDR and SDRAngel afaik - you might just want to play around with them and see which you are most comfortable with. Source: 10 months ago

For most signals (including analog AM and FM modes) you can use a laptop with an RTL-SDR USB dongle (fairly cheap), or another SDR, and a reasonably tuned antenna. Various RTL-SDR models can tune from around 500 kHz up to 1.75 GHz with 3 mhz of bandwdith, and works with free software like SDR# for Windows and GQRX for Linux. It works with lots of other software, too, for ham modes, digital modes, etc. Source: over 1 year ago

Some of the Crossfire modules have a rudimentary spectrum analyzer function on them that might help you identify if there are other devices operating in the 900MHz band around that area, but I'm not sure the nano TX is one of them. I have a couple RTL-SDR dongles or equivalent I'd use with GQRX as a cheap spectrum analyzer if possible. Source: over 1 year ago

Yes, a dongle from https://www.rtl-sdr.com/ Then I use gqrx to record the signal. https://gqrx.dk/ and SOX to downsample it https://sox.sourceforge.net/ Then pass it through wxtoimg to get the picture https://www.wraase.de/wxtoimg/. Source: over 1 year ago

Looks like sdrangel to me It’s got some cool things other SDR software doesn’t have like VOR triangulation, analogue TV reception, build in DAB decoding etc But it is more complex than SDR#. Source: over 1 year ago

There is loads of software that will work such as SDR++, GQRX, CubicSDR, and SDRangel just to name a few. For HD radio reception, there is nrsc5. Nrsc5 only works with an rtl-sdr, so you will need one if you want to receive HD radio. Source: over 1 year ago

SDRAngel may be worth looking into. Also not really a SDRSharp kind of app but recently I've been using Spektrum a lot to monitor bands that are wider than the 2.4MHz bandwidth of the rtl devices. I haven't tried SDR++ yet but its feature list looks very nice. Source: almost 2 years ago

Thanks! My previous approach was routing audio from wjst-x to sdrangel and using hamlib to control TX. Source: almost 2 years ago

You can decode DMR with DSD. It will work with either an SDR or a radio with a discriminator output. If you are using an SDR, then SDRangel is easy to use for DMR because it has a DSD plugin. Source: almost 2 years ago