Thanks for responding,
My starting point for this RF-link was form this project:
Arduino RF Link.
He makes a rf link between 2 arduino's using the Arduino SoftwareSerial Library and 2 SparkFun chips. The chips i have got are very similar. The datasheet says RF ASK transmitter/receiver, it operates at 4334MHz and has a data rate of 4800bps.
My plan was to use the Arduino transmitter side (using the SoftwareSerial Library or my own code if it needs to be differend) and make my own reciever side. I already told you i will need multiple receiver's so i'm trying to avoid using another adruino for each of those.
To be able to respond on the Manchester coding question I'll have to educate myself on that first so i'll do that tomorrow
, i'll also look more into the UART option but all i seem to find is complicated 40+ pin chips
.