"Assuming the transmitter and receiver were perfectly clocked in unison, what stops the receiver from tuning in in the middle of a byte, thus getting a nibble from the current byte and a nibble from the next?"
Nothing. That is a synchronization task your receiver must perform. Assuming the TX and RX clocks are perfectly synchronized is also an unrealistic assumption for wireless links. Your receiver needs to perform clock recovery as well. You might want to read this: https://www.researchgate.net/profile/Fred_Harris2/publication/278639495_Let%27s_Assume_the_System_Is_Synchronized/links/55c7b54508aeb9756746e44c.pdf -Andy _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio