Here is something for the 1.1-Client:Client should stop beaconing, when GPS is enabled and no GPS-Data available. Now it sends the last GPS-Position on an on as the actual position.
I had this yesterday when the GPS-signal for PSKMail died for some reason, probably RFI. You move really fast back and forth ;-), when at the same time independent VHF beacons find an I-Gate.
73 Klaus DL4OAH