Hmm. Learn something new everyday.goldeneagle wrote: ↑Thu Jul 09, 2020 6:51 amYour information is not correct.BTD wrote: ↑Thu Jul 09, 2020 6:41 am I don’t believe it does. That is ADS C works in the middle of the ocean. Although your ADS B could be communicating with other ADS B capable aircraft nearby. ADS B needs satellite navigation (gps) for position, but then uses transponder and ground stations to pass that to ATC.
For my clarity then, and given the follow up reading I have done. Most documentation still references ADS B as being ground based surveillance. Even Aireon makes reference on their website that current ADS B is ground based, implying that approvals for "Space Based ADS B" are still to come.
There are no references I have seen to this in the Computer Based Training I have done for PBSC and Remote/Oceanic operations.
There is other information that shows Nav Canada, started an ADS B trial in remote areas of Hudson Bay and some NAT airspace. This is all relatively recent developments (the last 6-12 months)?
So is "space based ADS-B" being used, not on a trial basis, across the North Atlantic now? Or is it still being trialed?