We’ve released v2.0, which contains the ability to do multilateration (MLAT) of Mode S (non-ADS-B) aircraft. The PiAware server queries multiple PiAwares that all see the same Mode S target and the server does the math to MLAT the location of the Mode S aircraft. Currently, the MLAT functions and data are in test and will not be visible anywhere yet because we need this testing first before this will work at scale. Stay tuned for updates over the coming days & weeks.
All SD Card users and all Debian package users with auto-update should be running 2.0. If you installed it via package and didn’t get an update, visit flightaware.com/adsb/piaware/upgrade
In order for your site to participate in MLAT, you will also need to set your exact location on your stats page. Also, you can always turn off MLAT via your stats page.
What It Will Do
Participate in the FlightAware MLAT network, using additional bandwidth (perhaps 20-50Kbps at peak)
Help FlightAware test client/server communication, back-end performance, scalability, data accuracy, and data integration
What It Won’t Do Yet (but will in the future)
Show MLAT data on your dump1090 web interface
Show MLAT data on FlightAware.com
Show MLAT stats
More info about MLAT here: flightaware.com/adsb/mlat/
Related thread: Multilateration (MLAT) Beta