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Sun Dec 2 15:08:19 CET 2007

transmitter

time to get the transmitter sorted out, so i can make a standalone
device that sends out a known data sequence:

  * combine the framed rx/tx with sending/receiving
  * figure out OOK and BPSK transition based send modes

return to zero, i don't see the point in that, so transition based
seems good enough. let's say 1 = trans, 0 = notrans. this has the
advantage that an idle line is the richest signal, good for sync
purposes.

transition based is easiest to implement using the current code.  in
case transition based is not desired (i.e. because it accumulates
error), this can still be pre-coded as long as a transmission starts
with a known oscillator phase.



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