TDOA: non-specific error.
This is a difficult one to describe as no specific fault code or error was displayed so please bear with me.
During the 0600Z hour, 22 December, I tried to TDOA a HF modem but no results were consistently returned.
I tried multiple different TDOA host locations and various combinations of TDOA outstation selections but no DF was returned.
One of the three selected outstations would always "drop out" (red cross). I checked for activity at those drop out sites & I was the only subscriber on them.
It appeared as if the TDOA system was not taking results from three stations & caused at least one to fail.
No specific error was displayed in the TDOA box.
I'd be very grateful if someone could take a look and see if this happens to them.