3 ms·
Clever use of ADS-B signals, which most large commercial aircraft ( and nearly all British Airways a/c ) now implement. I think the only exceptions in their fl
by dingaling 13y ago
Clever use of ADS-B signals, which most large commercial aircraft ( and nearly all British Airways a/c ) now implement. I think the only exceptions in their fleet are four previous-gen 737s that are near to phase-out.
Accuracy of the co-ordinates broadcast on ADS-B is dependent upon a/c equipment but for BAW should be around 5 metres.
So receive signals, screen for BAW.* call sign, cross-reference online for route. I wonder if they include affiliates such as CityFlyer, which fly in BA livery? Their callsigns are CFE.*.
- lstamour 13y agoI was going to say, it would make more sense if they got the data digitally by knowing pre-registered flight plans and plotting that in 3D. Alternatively, they could point a camera at the sky and look for "plane-like" objects. Either would be cheaper than ADS-B hardware. Then I learned you could actually scan radio signals with software... http://www.rtl-sdr.com/about-rtl-sdr/ http://www.rtl-sdr.com/about-rtl-sdr/ Mind blown. :)