Remember the guy who rescued a lost hiker by deducing his location Sherlock-Holmes-style using a single photo? [1][2]. The story was trending on HN few days ago.
He's got a pinned tweet [3] that says "One of the key technologies which has helped in crowdsourced response to extreme weather disasters (fires floods hurricanes) these last years has been ability to monitor local emergency radio channels remotely. Let's get these everywhere. #raspberrypi #rtlsdr #scanner"
He (Benjamin Kuo) is a HAM Radio operator active during disasters.
It's different from what you wanted, but just putting it here.