RE: JR radio problem, Horizon's 'help'
Here's a PM quote from a tech at FMA I recieved. I was having problems using the FS8 with my JR 8103
"Also, our receivers are extremely narrow banded and will not tolerate your transmitter being too far off frequency. You will notice reduced range and glitching. The reason you do not see this in your stock receiver is that the receiver is opened up to tolerate the transmitter being off. "
I have since found a couple other problems that were actually causing my glitching. But I did check my trans freq with 3 different freq counters I have and it is off a bit. Sounds like the issue you are having.