OOK Modulation using Pulses

Hello,

I am trying to create an OOK modulation and demodulation block. I want
to
represent a 1 with a pulse (a square pulse) and 0 as nothing. Would
something like this be possible? I have tried modifying the bpsk.py file
so
that I have constellation points of (1 +0j) and (0 + 0j). This gives me
the
OOK scheme but not the pulse that I am looking for. I would greatly
appreciate any help or advice that anyone could give me.

Sam

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