Help! Problem with turnigy9x

[Polarrcx3]

Hey, I have my turnigy9x radio and I build my first quad with mamba F405 stack, I am using DJT module and tiny FD800 Sbus reciever and I can control my drone only for 40meters no more. This is because of that turnigy does not suport sbus? Or what? Maby with ppm it will work or i have to flash new firmware to my turnigy 9x, ty in advance

 

[FDS]

That receiver has a pretty short range, it’s designed for indoor flying. You want something like the XM+ if you are running FRsky.
SBUS is only the means of communication between flight controller and receiver, it’s nothing to do with your radio.

 

[Merv]

I agree with @FDS, the range issue is related to the Rx and antenna, not sbus vs ppm