View data before modulation in benchmark_tx

hi
I want to view data before modulation and after in benchmark_tx.py, so
that
i can compare the data to the modulation waveform. Otherwise i have no
clue
which data and how is it modulated.

I could see the waveforms after the modulation. but before that, the
data
comes as a data_in_a_queue from message_source. i tried message_sink.
But
this only pushes the data into a queue. i want to see it as a file of
1’s
and 0’s or use it into a file_sink(by this i can view the data on an
oscilloscope).

How can i read the data thats present in a queue?

Thanks in advance

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