Any ATC Expert here to clarify CPDLC Process?
Few questions regarding CPDLC. MS Sim experts captains I know everything and alike please don't comment.
Looking for a legit info from experts only.
1. logging into a centre sometimes doesn't work. why? is there any way to make it happen? unconfirmed information I got is that sometimes registration doesn't match what ATC has on their side (scheduled ops)
2. how the process of communication via CPDLC look like? if I send a request say level change request where is that message going to?
is the ATC guy on the radio (say area control or oceanic) same that gets the CPDLC message? what is the exact process of issuing clearance and sending it via CPDLC to the plane?
3. any clarification on FANs please? planes while logging let tick FANs box but not always. Does it depend on the centre I am trying to log into?
Please comment.