Quote:
Originally Posted by Soundy
All planes have to use GPS tracking once they're outside RADAR range, the catch is relaying that position info back to the airport(s) and related entities. MapMyRun on your phone will do it, but it needs a data connection... WiFi and 4G won't work when you're out over the water, so you're relying either on satellite communication, or some form of packet radio... and then you're back to the long testing stages again, and the growing R&D costs.
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I'm not talking about Wifi and 4G, ADS-B information is transferred via VHF frequencies. sure there are holes in VHF coverage over the ocean (which is why transoceanic flights still use HF and CPDLC), but automatic position reporting in lieu of traditional radar means is definitely not non-existent.