CPDLC in Europe.
Joined: Mar 2001
Posts: 4,563
Likes: 35
From: I wouldn't know.
We used to use it. But after a recent software update on the ground (EDYY and EDUU) we are currently not allowed to use it anymore as it apparently can disable the ground infrastructure. B737NG.
To be honest it had more of a novelty factor than real use and ATCOs often used voice comm instead as the canned CPDLC messages were not flexible enough for real world usage. Not to mention that it is much slower as well.
To be honest it had more of a novelty factor than real use and ATCOs often used voice comm instead as the canned CPDLC messages were not flexible enough for real world usage. Not to mention that it is much slower as well.
Joined: Jun 2001
Posts: 4,835
Likes: 85
From: Boldly going where no split infinitive has gone before..
Agree it would be of limited use over congested airspace, but i recently did NCE-JFK, and logging on to London, then having it seamlessly change to Shannon then Shanwick, Oceanic received over ACARS, then off over the pond was very nice indeed.
Eidolon
Joined: May 2001
Posts: 2,244
Likes: 62
From: Some hole
Denti,
It is a "simple" software mod in the digital radio on the aircraft, only applies to 3 Rockwell Collins models. Basically the aircraft radio will not transmit unless it senses no other radios are transmitting (that is CSMA). The ground station sends a heartbeat message to each aircraft every 2 minutes, if the aircraft fails to respond to 3 of these, the network locks the aircraft out (in ATC talk it is known as a provider abort). The cone head medical diagnosis of this is call VHF digital radio deafness, of VDR deafness for short.
It is a "simple" software mod in the digital radio on the aircraft, only applies to 3 Rockwell Collins models. Basically the aircraft radio will not transmit unless it senses no other radios are transmitting (that is CSMA). The ground station sends a heartbeat message to each aircraft every 2 minutes, if the aircraft fails to respond to 3 of these, the network locks the aircraft out (in ATC talk it is known as a provider abort). The cone head medical diagnosis of this is call VHF digital radio deafness, of VDR deafness for short.
Joined: May 2011
Posts: 398
Likes: 0
From: FL400
We use it in Maastricht and London and while I can see the argument that it is of limited use in congested airspace, it has one benefit which is to reduce frequency congestion by mainly using it for frequency changes (without voice backup).
Joined: Jan 2000
Posts: 860
Likes: 0
From: FL410
CPDLC is still in its infancy to where it wants and needs to be to become a game changer.
We do not (yet) use it, but transit several provider sectors. My previous airline was already equipped.
Ultimately the CPDLC aim is (but not limited) to:
Personally, I can't wait until CPDLC is implemented properly, like several other EuroControl projects out there at present which can, and if implemented correctly by an airline, will make a huge financial and time saving.
We do not (yet) use it, but transit several provider sectors. My previous airline was already equipped.
Ultimately the CPDLC aim is (but not limited) to:
- reduce radio congestion on the old VHF;
- reduce dialect issues requiring rereading clearances due lack of understandability;
- enable more direct routings to be given and acknowledged to crew;
- enable vertical clearances/restriction to be given and acknowledged to crew;
- enable a more flexible use of airspace for all involved;
- ... the list goes on.
Personally, I can't wait until CPDLC is implemented properly, like several other EuroControl projects out there at present which can, and if implemented correctly by an airline, will make a huge financial and time saving.
