An instrumental tool to improve overall performance monitoring, problem investigation and resolution.

Access conditions

MOON is a tool developed by EUROCONTROL for performance monitoring. MOON listens to VHF datalink (VDL) Mode 2 channels via remote monitoring units. It provides VHF datalink / Aeronautical Telecommunications Network (VDLM2/ATN) statistics and alarms for monitoring and subsequent analysis. MOON also provides key information for further capacity planning and multi-frequency VDL 2 deployment.

It has been instrumental in the detection and investigation of controller-pilot datalink communications (CPDLC) VDL Mode 2 implementation issues affecting interoperability or channel occupancy.

Access conditions

MOON is available upon request. For information on how to access MOON, please contact us.


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