Hey all,
I just found fr24 and it's a cool idea. I had a question about the equipment: it seems that you are only using 1090MHz Mode-S ES receivers. In the US, general aviation aircraft can also use a Universal Access Transceiver (UAT) data link at 978MHz. If I understand correctly, the UAT datalink does not only allow aircraft to report their usage, but the positions of 1090ES-reporting aircraft are also uplinked by the UAT ground stations so they can be displayed in the cockpits of general aviation aircraft. So, it seems that it would be a more efficient solution in the US to use UAT receivers instead of 1090ES ones, they would receive positions of aircraft reporting on both systems whereas there is no uplink over the 1090ES frequency so if you only use that receiver you will not see positions of aircraft using the 978MHz system. Was this considered and rejected for some reason?
cheers,
/Patrik
I just found fr24 and it's a cool idea. I had a question about the equipment: it seems that you are only using 1090MHz Mode-S ES receivers. In the US, general aviation aircraft can also use a Universal Access Transceiver (UAT) data link at 978MHz. If I understand correctly, the UAT datalink does not only allow aircraft to report their usage, but the positions of 1090ES-reporting aircraft are also uplinked by the UAT ground stations so they can be displayed in the cockpits of general aviation aircraft. So, it seems that it would be a more efficient solution in the US to use UAT receivers instead of 1090ES ones, they would receive positions of aircraft reporting on both systems whereas there is no uplink over the 1090ES frequency so if you only use that receiver you will not see positions of aircraft using the 978MHz system. Was this considered and rejected for some reason?
cheers,
/Patrik
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