RE: RX antenna repair?
Hank, none at all. I fly a super AVA 147" glider, my personal best was 4695ft above launch height, and at least 1/2 mile out. Crazy small! That particular receiver actually did get a replacement antenna later (caught in the adjustable tow hook). I wouldn't shy away from using it again for the same task.
Last year I bought a few top end J.R 10ch radios. Replaced 5 antennas on 10ch receivers that came from turbine, or heli rolls. With Deans antennas, I simply replaced the intire antenna. I will look on line and check the length, 37 inches comes to mind for all J.R. receivers.
-Snuts-
Well 39 inches seems to be correct, in reality if you make it 39 inches (it will work just fine) you can cut it down later.