Hi Steve
Thanks for the clarification.
"This Trial is about Air Traffic Services Outside Controlled Airspace and ATSOCAS use of Traffic Displays of Air-to-Ground EC Data. Above all, it is about the needs of GA Airfield ATS, which has its own discrete requirements."
Yes, I understand and think that this is the type of location where you will find that a significant proportion of the local GA pilots will already have voluntary equipage of Flarm, Power Flarm and PilotAware for EC purposes so are ideal candidates for detection.
Anyway, I don't want to overly prolong the debate other than to inform that 1090MHz is by far not the only EC game in town. Also as the trial is ignoring ModeC/S transponders due to the MLAT latency, 1090MHz EC is in the minority compared with the FLARM and PilotAware equipped GA aircraft. Just an observation.
As you know my position is that we should have as much interoperability between existing systems for maximum effect and by this I mean interoperability between systems air to air and air to ground. Not just air to ground.
As a member of the PilotAware Team, I must declare my interest but with the very large voluntary take-up of none 1090MHz EC, I do think that this should be considered.
Anyway best of luck with the trial. I hope it will be successful and lead to an enhanced investigation and greater safety which is what we are all working towards. Keep up the good work.
Regards
Keith