I just tried the "learn RC parameters". No luck.

I then hooked up a different radio and receiver, but same thing. "No RC". I could put the antenna right next to the TEMS and it would go away. I could also put the antenna next to the GDT and Receiver and the "No RC" would go away and allow start.

I noticed the red light on the TEMS, when antenna was close, appeared to be weak (unlike normal) and when I moved the antenna away it (red light)would go off.

I will try the "reset to default" and then "learn RC parameters". Hopefully it will work, but I think something is possibly wrong with the TEMS.