Try PilotAware (pilotaware.com). It's a Raspberry Pi with SDR comms. A web app gives you a radar type display. It'll integrate with moving map software for navi

Try PilotAware (pilotaware.com). It's a Raspberry Pi with SDR comms. A web app gives you a radar type display. It'll integrate with moving map software for navigation if you want (eg. I use SkyDemon). I'm not sure about availability outside the UK though.