1. Follow the advice about checking with the instructors at the field.

2. Buy a compatible radio, with whatever features you want.

3. Buy a receiver crystal on the instructors channel and put it in your receiver. Or work it out with him/her that he/she has one for your receiver.

4. Now you, as the student, are using your radio as the slave/buddy box, and all is good.

As a club instructor, using Futaba, I have both high band, and low band transmitters and carry an extra crystal, matching each. Pop that crystal in the student's receiver and they get to use their transmitter from the git-go.

Fatsky knows what I mean.

The only time that does not work, is if they do not have negative-shift equipment. I do have the JR to Futaba adaptor cable. Works fine, but one must cut 1/8 inch of the rubber off the din plug.

Ken Erickson