I think you are confusing two separate compatability issues. First is the modulation shift, for a Tx and a Rx to function together they must be of the same shift (positive or negative) or either the Tx or the Rx must be shift selectable to match the other.

The Servo plugs are a different issue altogether. If your Airtronics servos have black plastic plugs with three splines then no they are not compatable with any other brand Rx or the new Airtronics Rx's. If your servos have blue plastic plug (this is the Airtronics 'Z' plug) then yes they are compatable with all the other Rx brands.

All of this would be a whole lot easier if you would just say what color your servo plugs are.


John