I am trying to increase the range of my flysky fs-i6x with adding 2 Watt RF Amplifier with 9dbi Omni Antenna in the place of original ones. Is it possible? Or if anyone has ever tried like that before?
What range exactly are you hoping to gain here? 2 watts is a HUGE power increase over the typical FCC approved mw ratings most transmitters have. Even most long range TXes are capped around 1 watt and require a HAM license at those power levels.
I agree with Bricks, ELRS is the way to go.
Besides being less expensive and less hassle, ELRS likely going to be more reliable. We know it works.
Why reinvent the wheel?
I live in an ocean of corn. In my early FPV years, I got disoriented & didn’t know which way was home. I still had video & RC control but my battery was empty. So I set it down near a road, got in my car & started driving. When I found my plane, it was about 1.5 miles away. Not too bad for a stock FlySky Tx & Rx using a 200mW video with CP antennas. Granted it was in a very low noise environment.