I have been fighting signal loss the whole time. Using Futaba 7PXR transmitter. Changed out receiver, changed battery, and found wires bad thought that was it, but no. Removed power switch and battery straight to receiver still not it. Changed out transmitter, still no. Raised antenna some more. Nothing. Finally raised antenna all the way up and much improved, but not great.
Tuning the high end, 1st making sure not to go over 270°, then started working on high idle, but out of fuel.