> I checked the benchmark_tx.py it adds a preamble and a lot of data before
> the actual payload which I don't need.

I assume you are trying to do some BER measurements?  There is an
example called digital-bert that will do that (bert=bit error rate
tester).

If you have some other goal in mind, I would suggest examining the
digital_benchmark_*.py files and extracting the blocks you need into a
new python file that simply modulates and sends (basically skip the
packet_{sink|source}).  Keep in mind that there would be no
synchronization at the receiver with such a setup and that when you
repack the bytes there may be an offset that you have to account for
during processing.


Jason


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