.
Press the 1L key to select SITA 725. The SELECT indication goes off and the.priority.number.of.selection.E1.comes.into.view.
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Press the 1R key to select ARINC. The SELECT indication goes off and the.priority.number.of.selection.E2.comes.into.view.
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Press the 5R key to activate the VHF SCAN MASK function. The star next to.the.SCAN.MASK.LOAD.indication.disappears.and.then.reappears.
ATSU.And.CPDLC
FCTM O.I..(30.JUL.04)
9.50.4
A330/A340 COMMS.&.NAV
O.I..(30.JUL.04)
FCTM ATSU.And.CPDLC
Notification
Notification.is.made.through.the.NOTIFICATION.page.as.follows:
The FMGC provides the ATC FLT number. The notification procedure is used by the ATC to correlate the aircraft with the ICAO flight number. Consequently, it is essential to enter exactly the same number, shown on the ICAO flight plan (with the.same.number.of.letters),.on.the.INIT.page.
The ATC CENTRE field defaults to the centre that was connected during the previous.flight..It.can.be.changed,.if.applicable.
Once the ATC centre has been notified, "NOTIFIED" is displayed on the NOTIFICATION page. The ATC centre will then initiate the CPDLC and/or Automatic Dependent Surveillance (ADS) connection. Therefore, re-notifications should.be.avoided.
For ADS operations, check on the CONNECTION STATUS page that the ADS is set.to.ON.prior.to.performing.a.notification.
ATSU.And.CPDLC
FCTM O.I..(30.JUL.04)
Connection
Before.connection,.the.DCDU.screen.appears.as.below:
Once notified, the connection is made at the ATC's discretion. When the connection is established in a CPDLC or CPDLC/ADS environment, the active centre is displayed on the DCDU and the pilot should verify that the appropriate centre.is.connected.
For operations in an ADS only environment (i.e. no CPDLC), "NO ACTIVE ATC" remains displayed on the DCDU and does not reflect the ADS contract status. This is due to the fact that the DCDU is the interface that sustains CPDLC communication, whereas the ADS is an additional feature which is transparent to the.crew.
9.50.6
A330/A340 COMMS.&.NAV
O.I..(30.JUL.04)
FCTM ATSU.And.CPDLC
CONTROLLER/PILOT.DATALINK.COMMUNICATION.(CPDLC)
This section gives only a few typical examples of the messages that are exchanged between the crew and ATC. To avoid ambiguity, the following is recommended:
. Avoid.sending.multiple.clearance.requests.in.the.same.message . Avoid.duplicating.messages..Consequently:
. Answer.incoming.messages.as.soon.as.possible
. Do not re-send your message if ATC does not answer immediately. If, after a reasonable period of time, you feel it is necessary to re-send a message, e.g. a clearance request, do not re-send the same.request..Use.a.negotiation.query,.such.as."WHEN.CAN.WE..."
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Close messages when they have been answered or sent to keep the screen.free.for.additional.messages
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Avoid using free text. If it is necessary to use free text because pre-formatted messages do not allow for a specific message element, use standard.ATC.phraseology
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