CPDLC and ADS question
Hi Everyone:
I'm on a 747-400 and have been using CPDLC for about 5 years now. With my previous company, while flying the NOPAC we would modify the POS Report page to reflect the first two mandatory reporting points then the next point. On the PACOTS route we did no modification(All Mandatory Lat and Long) and in the Oakland FIR we did not send any report (except the first LAT/LONG) because of the ADS system.
I know in with ADS A (aka "C") the reports are initiated by the Pilot via the ACARS/FANS 1/A system manually (Pilot presses the button). I know in ADS type B the positions are sent(or Taken) every 15 min or as the "Contract" values are set.
My question is: Is the reason we have to send the position report in Tokyo FIR and the Nopac (with Modification) and not in Oakland FIR because of the type of ADS system? I'm looked on the web and through various manuals and can't find it.
I hope this is not too stupid of a question.
Any thing on this would be helpful. Any info from an Oakland Center guy would be awesome.
Thanks,
Wally