Next week, we’ll be releasing PiAware 2.0, 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.
Today, we’re releasing a beta for people to try the upgrade and begin running MLAT. This beta is for testing the installation/upgrade of the software, and for FlightAware to test the client/server communication, the back-end scaling, data processing, etc. Currently, the MLAT data will not be visible anywhere yet because we need this testing first before this will work at scale.
Installing the beta
If you run PiAware and know how to ssh in and use Linux, run the steps below. If you run the PiAware SD Card or don’t want to do the manual steps, you’ll be eligible for the auto-upgrade next week.
sudo service piaware stop sudo dpkg -r fa-mlat-client sudo wget http://flightaware.com/adsb/piaware/files/piaware_2.0-3_armhf.deb sudo dpkg -i piaware_2.0-3_armhf.deb
(Some of these commands may produce an error depending on what you have installed and that’s okay)
You will also need to set your exact location on your stats page.
You can always turn MLAT off on the command line (piaware-config -mlat 0 && service piaware restart) or 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/