Now don't all get mad at me but I got a real dummy question.

I just got a JR XP7202 tx unit. just the TX.

It says I can use it with all older FM RX units.

So now I have it setup on ppm and I get the servos to glitch a little but thats it. Now I did the "synthesize" channel bit and tried it on two diff rx units. One Futaba and the other HItec.

Two diff channels but both really are FM.

Now I can't find anything in the manual that says " in order to work with older (not that old) FM RX units you must blah blah blah"

Both of the RX units are Duel conversion .

What the heck am I missing?

I got this so I could free up my Hitec Elcipce 7 for my helis and use the JR for foamies. The 20 model memory is the part that I need.

Oh and yes, both RX units work with other TX units. Both use crystals. while the JR uses a synthesized module.


I am going to order some other stuff tonight from tower but wanted to get this squared away first.
Any help will be greatly apprecieated.