1. Live Boot CD’s

Pentoo

Really, is there anything else? 🙂 Just download that and you’re set. Within pentoo, you’ll find a suite of tools, and some that you’ll need to download extra.

GQRX

Baudline

Baudline has an issue of parsing files greater than 50 MB in size, therefore you must chop those files. Essentially, you’re doing:

dd if=your_iq_sample.iq of=your_iq_sample-1.iq count=50
dd if=your_iq_sample.iq of=your_iq_sample-2.iq count=50 skip=50
dd if=your_iq_sample.iq of=your_iq_sample-3.iq count=50 skip=100

Instead of doing this manually, you can easily find a script to chop it up for you, much like the one here: https://github.com/feralhosting/feralfilehosting/tree/master/Feral%20Wiki/Linux%20Command-Line%20-%20Advanced/Split%20a%20Large%20File%20Into%20Multiple%20Smaller%20Sized%20Ones

There’s another nifty trick in the following command

rtl_fm -f 89000000 -R -s 1000000 -g 0 - | baudline -stdin -samplerate
1000000 -quadrature -flipcomplex -channels 2 -format le16

2. Windows Tools

SDR#

baudline

3. Mobile

Android – SDRTouch

4. OSX

Inspectrum
SOX
And a bunch of the same Linux tools, provided you got GNURadio working, will port as well.