rf link with pic16f84a

i wanna one rf link for password activation of a electrical load (it is not an academic/homework)... The transmitter should read one password composed by 4 characters enter by the user and transmitted by the rf link and if it is the right one activate a electrical load (For verification in the proteus design 8.1 sp 1 attached, there is a serial lcd on each side) needed proteus simulation working, *.hex, *.c, and aditional libraries used Aditionally details of the compiler and IDE for posterior compilation or adjustments also required It should be easy, no more than 16hrs..I already made the keyboard part but the uart sending by PORTA fails..