If you don't have an RTL-SDR dongle it's one of the cheapest and most useful toys you can buy. For those who don't know what it is: imagine a USB radio receiver that can tune into the bulk of sub-GSM/GPRS frequencies for like $40
We're looking for some alpha testers! If you have an RTL-SDR dongle you're willing to set-up with readsb, run setup-station.sh, and then leave the dongle plus the server in this git repo running for a few days, we'd be grateful github.com/adsbAT/at-ad...