Here are some resources on Software Defined Radios (SDR) and using deep learning with them.
SDR is used in the Search for ExtraTerrestrial Intelligence (SETI) for its flexibility. Here is a good example of recognizing patterns on a spectrogram (frequency/time plot) that just made the news:
Distant galaxy sends out 15 high-energy radio bursts
Tinkerers found out that one can convert a cheap (like $25) digital TV dongle using the RTL2382U chip into a software defined radio and get them to work with gqrx (linux) or SDR#. Thanks to the Berkeley SETI website for tipping me off to this.
RTL-SDR Dongle and GQRX on Mac OS X
History and Discovery of RTLSDR
Wikipedia page on SDR
https://radioml.org/ & https://github.com/radioML/
RadioML docker image
Guess what? This space of pattern recognition in frequency/time