Instructions for setting up the ATC Unit for CPDLC

Note: CPDLC is currently not used within the New Zealand Domestic FIR so only controllers operating NZZO_FSS (Auckland Radio) are permitted to use this software while controlling.

For controllers wishing to use the system you will need to have the ATC Client installed.  Link to this program can be found at http://www.hoppie.nl/acars/prg/atc

Use the install program to install the ATC Client.  Once installed (C:\Program Files (x86)\hoppie\acarsatc), runway the program (the icon is in the BIN folder).  This program does not require the BROKER and runs on it's own.


The first screen you will see if the CPDLC screen annoucing that is has successfully read some messages and vocabularies.  No call sign has been entered yet so it will not try to reach the ACARS network.  The amber coloured box indicated it has read the messages but it is not connected to the network.

Enter your callsign for CPDLC.  For Auckland Radio (NZZO_FSS) we suggest using NZZO as your callsign.  Make sure you list this in your ATIS for pilots know which callsign to communicate with.  Click OK then click in the grey message box to the left of the amber coloured box.


You will get a message about an illegal logon code, this is OK as it indicates that it has connected to the server.   Go ahead and now enter your logon password and click OK.  The indicator will turn green and you are now ready to communicate with aircraft.

When an aircraft contacts you via ACARS a message box pops up and it is always a request to logon.


Click on the aircraft callsign and from the drop down box click 'accept logon', the green colour turns amber then drops off the current messages.  Further communication with this aircraft can be done bia the TELEX or CPDLC MESSAGE COMPILER.



The Telex Unit is actually not part of the CPDLC as its main function is to handle free-form text messages whereas the Message Compiler is for fixed-form messages.

The TELEX unit can be used for larger messages such as Pre-Departure Clearances as there is simply not enough pre selected messages in the message compiler to handle the PDC.

The TELEX window is constructed with large quantities of similar messages in mind to cater for the typical PDC.  Its operation is straightforward: incoming telexes on the left, outgoing telexes on the right.  You can copy the callsign from incoming to outgoing with the reply button.

ATC can transfer the aircraft to the next sector (if that ATC has CPDLC) with the 'handover message' (COMMS).  The aircraft will automatically switch to the next unit.  Pilots will not need to notice or do anything.

ATC can also terminate the CPDLC server with the 'logoff' message (COMMS) when the aircraft has left the area of responsibility of the ATS unit.

The CPDLC Message Compiler is the heart of the CPDLC system.  With the message compiler you can build the message by selecting pre compiled text messages in the compiler.  This compiler has been built around the Australian  variant using Australian phraseology and follows the real life interface very closely.  Note: There are a lot of simalarities between New Zealand and Australian phraseologies in the ATS environment.

Each message can consist of up to five elements with variable values that can be changed to suit the actual message that you are building.  Simply click on the variable and change the value or text.  Lengthy messages that may be used for different aircraft can be saved and recalled if required.

For more information, downloads, examples and explanatory notes, visit http://www.hoppie.nl/acars