I ended up using some lockdown time to put together a Pi-based ADS-B receiver, as I live close to the main low-flying helicopter route through London. I've chosen to feed data to a mix of services, including ADSBexchange which powers those bots, so some of the data there comes from my receiver; which has a surprisingly long range with a decent antenna: I'm regularly tracking aircraft 190 or so miles away...
You can set up a system for under $120 with a good antenna and a 1090MHz-filtered software defined radio stick. I use the Piaware distribution, which sets up the basic software needed to feed data and to generate your own maps. An added bonus of being a feeder is that you can get free access to commercial ADS-B networks like Flightradar...
You can set up a system for under $120 with a good antenna and a 1090MHz-filtered software defined radio stick. I use the Piaware distribution, which sets up the basic software needed to feed data and to generate your own maps. An added bonus of being a feeder is that you can get free access to commercial ADS-B networks like Flightradar...