Hi! This is my first msg... (this is a great community )

I'm trying to connect a 16f876a with a Transceiver IC (RF600T from RF solutions) and a fm transmitter to a PC with another transceiver IC and a fm receiver so:
Can I use any digital output PIN to connect 876 with the RX of the transceiver?
What command must I use ?(SEROUT?)

I don't understand the difference between sending serial bits through any output pin and sending serial bits through UART pin...



Regards.