Improving ADS-B Reception Using Multiple RTL-SDRs

lui_gough from Gough’s Tech Zone has a new post featuring his interest and progress in improving the reach of his ADS-B reception and plotting ability. His recent project involves using his ADSBpi (Raspberry Pi, RTL-SDR & dump1090), his home PC and another remote PC controlled over the internet. A diagram of this setup can be seen below.

ADSB-Network-Diagram

In order to get the most coverage as I can sensibly get, I leveraged my ADSBpi, my main desktop and another machine I have access to which is geographically much closer to the airport via VPN.lui_gough

This allows him to receive signals from a much larger area than would be possible with a single antenna, single location setup. He does mention a few caveats however, like the increased chance of occasional false decode which can mess with the plotting by visualizing a plane that is unrealistically far away. A big boost to the usability of his project was using Cygwin to compile dump1090 under windows. This allows him to use the dump1090 ADS-B hub features (decoding appears broken under Cygwin compilation) without having to dedicate a machine to linux or use a virtual machine.

Click here to read the full story on his blog. Be sure to check out all of Gough’s Tech Zone as he has few other interesting posts involving the use of RTL-SDRs to receive ADS-B

via RTL-SDR Blog

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