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Re: [Discuss-gnuradio] beginning psk31

From: Chuck Swiger
Subject: Re: [Discuss-gnuradio] beginning psk31
Date: Sat, 02 Apr 2005 21:04:53 -0500

At 12:43 PM 4/2/2005 -0800, you wrote:
On Fri, Apr 01, 2005 at 08:00:10PM -0500, Chuck Swiger wrote:
> I'm kind of at a lost at how to leverage 'bytes_to_syms' from a
> single sample to 256 or 1024 samples/symbol.  31.25baud is 8000/256

For a quick solution you might want to try something like what Joshua
Lackey did in the GMSK Tx code (gnuradio-core/src/python/gnuradio/blksimpl/gmsk.py)

perfect - now it prints out DE DE DE ... ;)

psk31 uses something called 'varicode' and will need a lookup table.
Maybe python can process user keypresses and pass them off to bytes_to_syms
thru a file_source and a pipe -

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