Technical stuff
Aviator 1970 in post 4349 said:-
ADS-B usually set on auto needs to be deliberately selected off with the FMC interface.
I'm not sure that is correct. Some info on ADS:-
ADS-B is transponder to antenna transmissions and thus is LOS. ADS-B will work as long as the transponder is "on". Thus FMCS has nothing to do with ADS-B.
The -B means broadcast and that's what the transponder does
ADS-C is, on the other hand, data transmitted via FMS/ ACARS and will only be transmitted if the pilots have logged on and Contracted ( that's what the -C means) with the appropriate ATC authority. It is used in conjunction with CPDLC when out over the briny.
Question for 777 pilots.
How can you disable ACARS? I don't recall being able to do that in my airline days and I'm not sure I'd know how to do it in the G-550!