how to send pwm signal using rf maodule pwm signals wil be generated by microcontroller 8051
Rf requires (frequent?) retransmits and I know of no PWM app that can handle that kind of jitter.
If you have sender and transmitter close enough to use a cable RF should work.
Erik
Don't radio-controlled models use (a type of) PWM?
Needs more detail on the type of "PWM", and the type of "RF module"