Hello ;

I got a circuit design which is already done someone else however in that circuit the rf transmitter is not good enough for the application and i have to replace that another RF transmitter.

The problem is that i have no idea how do that replacement for now because i did not this circuit before and i can not match the desing on board and the paper..

Could you help me how can handle that problem and give me some advices?

Thanks a lot have a nice day

i did noting someone else have done something then i have to replace the  transmitter i can send you design on paper but i can not figure out the design which have done before