Using cuav p9 telmetry with shireen 900mh 2w amplifier

hello everyone , I want to ask you how I can use cuav p9 telemetry with Shireen 900mh 2w amplifier with number (90303) to improve the range of my system ,
how can i configurate between the output power of cuav p9 (step1) and the input power of Shireen amplifier (step2)