I am new to linux and GNURadio. I don'g follow where the 1 bit/byte is coming from. Does the audio source not deliver 8bit/sample or how do you figure that out? I don't see anything such as "gnuradio>digital>generic_mod_demod.py " in my directories. Thanks for the help.
Tom
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Tom,
There are few changes required in ur FG
1: PSK/QAM Modulator takes packed byte input (8 bits per byte) instead of 1 bit per byte
see gnuradio>digital>generic_mod_demod.py
2: Constellation sink work only for PSK modulation M=2,4,8.
To
see output constellation of QAM-16 u will have to first downsample it
to 1 sample_per_symbol and then use wx-scope-sink in XY-Mode
Down-sampling can be done using symbol-timing blocks or manually (delay+keep1inN combination) as in attached FG
-Adeel
From: Adeel Anwar <address@hidden>
To: tom sutherland <address@hidden>; address@hidden
Sent: Friday, July 5, 2013 10:25 PM
Subject: Re: [Discuss-gnuradio] Simple QAM project
Can u attach ur GRC file?
-Adeel