Controller-pilot datalink communications ground automated tool

Access conditions

Our controller-pilot datalink communications ground automated tool (CPDLC GAT) allows aircraft operators to exercise their use of CPDLC from a testbed, or a datalink Baseline 1 equipped aircraft.


    The CPDLC GAT allows aircraft operators to:

    • verify proper CM/CPDLC equipment installation and functioning,
    • verify new software avionics releases (from a test mock-up or a test a/c in the hangar), before the software is installed on the first aircraft.
    • assist in aircrew CM/CPDLC familiarization.


    At EUROCONTROL, we developed the tool during Baseline 1 and CPDLC deployment, to help several airlines equipped with aeronautical telecommunications network (ATN) Baseline 1 compliant communications management unit (CMU) or air traffic services unit (ATSU).

    Since it's development, our automated CPDLC ground test tool, hosted at our Experimental Center in Bretigny, continues to help aircraft operators exercise CPDLC against a datalink ground test system.

    To learn more about how to use our GAT, please download our user guide.

      Interested in datalink?

      Check out our datalink-related activities.

      Access conditions

      In order to connect to the GAT, the aircrew needs to send a logon to the LFPYTEST ground facility designator.


      If you are experiencing issues with accessing or using the tool, please contact us by using our page's contact form.