Originally Posted by RoboSerg
Still waiting for you guys to do a range test with stock antennas.
Also is there any way to use internal antenna of the 9X instead of the module antenna?
You probably meant to say 9XR as the 9X has no internal antenna.
Either way the answer is no, the antenna the 9XR has is for 2.4Ghz and these modules use 433Mhz.
On the TX you may want to get a proper 1/2wave antenna like a Nagoya ou a Diamond.