RE: JR Rx Glitching Problems W/ROYAL EVO 12S
Is the site you fly at close to a military base by any chance? The Puget Sound area is littered with them.
The site at Discovery park is right next to a base (used to be part of the base, as a matter of fact), and I strongly suspect the base is broadcasting something that's causing the problem.
For everybody else reading this I'm sure that 99.9% of the time the problem is really with the receiver/installation and not with the transmitter, but please read the other thread I started on this and what I've gone through trying to track the problem down before deciding it just can't be the transmitter.