RE: JR radio problem, Horizon's 'help'
It sounds like the transmitter may be off frequency just enough to cause the poroblem.That doesn't explain the JR receiver working perfectly with it.Unless Jr tuned the transmitter and receiver to match each other.
This may sound like an odd suggestion,But1 FMA offers to "Tune' your transmitter for You (any brand),with proof of purchase of a receiver from them.If You were to buy an M5 receiver for $35 and the $5 crystal,You could get your transmitter tuned for free.If the problem proves not to be the transmitter frequency,they would discover that too.