Thanks for your thoughts Missleman.
The trainer switch was held for up to 30 seconds each time we tried it so I don't think it was the delay factor.
Unfortunately, if the problem is with the trainer switch, it will only be determined by having a tried and true buddy box hooked up to it.
I'll have to check and see which model the JR buddy box is. It's an old transmitter that we took the crystal out of. Could this be a factor?
Mike