If you're only interested in sending 8 bits, maybe a simple RX/TX setup would be better and less complicated. There are many examples available on this forum, and these examples have allowed me and others to learn how to transmit and recieve pretty prefectly different bits of information over RF. Make sure you check out Manchester Coding and other such protocols before you make up your minds

TLP434 tx on 434MHZ... the clue was in the part number........ This is part of the ISM band, basically used for everything from garage door openers to cordless phones to baby monitors to alarm keyfobs. It's a noisy world out there on RF land, so your choice of protocols will be important