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This data is actually gathered by hobbyist and you can be a part of their network all it costs is about $25 for an ADS-B USB adapter. https://www.flightradar24.
by blackflame7000 8y ago
This data is actually gathered by hobbyist and you can be a part of their network all it costs is about $25 for an ADS-B USB adapter. https://www.flightradar24.com/build-your-own https://www.flightradar24.com/build-your-own
They also offer free membership (499/yr) if you share data.
Every flight broadcasts this data kinda like GPS and all you need is an antenna to receive it. In fact the tracking is basically done via ground-based GPS(ADS-B) by measuring the time delays between different receivers in the vicinity. The problem is that there aren't many hobbyists in those parts of Africa so coverage is sparse. In America, its pretty spot on in most locations. A USB adapter can surprisingly pick up planes as far away as 400 miles.
- semi-extrinsic 8y agoIf someone wants to do this, for the more technical audience there is a selection of better (but still pretty cheap) hardware available e.g. from https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ E.g. you can get an SDR with built-in ADS-B specific low-noise amplifier and SAW filter also for $25. (This can't do general purpose stuff though, unlike the one linked by parent.) Or you can get their general-purpose SDR and their broadband LNA for $40 total.
- Scoundreller 8y agoSo I guess the newly released satellite data was because nobody was running (enough of) these dongles where these incidents occurred?
- garaetjjte 8y ago>by measuring the time delays between different receivers in the vicinity No, position (likely received from plane GPS) is just openly transmitted in ADS-B frame.