RF Remote Control Prob.

Hello Sir

I Have one rf base remote controller. in it one transmitter & receiver both are operating on PIC microcontroller IC. for this ic i have two .asm file. in it i am only changing code & program ic.

My Problem is that when i am operate key from transmitter that time receiver output continue on after releasing transmitter command. here i have need when we press transmitter key that time receiver output on & after releasing transmitter key than receiver output off

I am using IC 16F72A for transmitter & IC 16F628 for receiver so pl suggest me how change my existing program or if anybody have like this program pl help me.

I have also Elnec Make pigprog Programmer.