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Re: [Discuss-gnuradio] No output from the Packet Decoder?


From: Josh Blum
Subject: Re: [Discuss-gnuradio] No output from the Packet Decoder?
Date: Tue, 17 Mar 2009 13:01:44 -0700
User-agent: Thunderbird 2.0.0.19 (X11/20090105)

There is now a simple loopback example with dbpsk in the trunk http://gnuradio.org/trac/changeset/10632

The example works, seems to be a little laggy, though that might be my computer. I cant wait to use/implement some real message passing interface blocks for the packet encoding and decoding. :-)

-josh

w w wrote:
I'm hooking up in GRC a packet encoder to a DPSK modulator and then a
decoder to a DPSK demodulator and everything seems to be fine up until the
output of the packet decoder.    I got a signal going into it, but nothing
coming out...either on a scope or file sink.   I've played around with the
threshold on the decoder (-2,-1, 0, 1, 2) but nothing.   I called myself
looking but don't see any examples on the Packet encoding/decoding.   I've
got the encoder packet lenght set to 0 for automatic.   I'm doing DBPSK and
got the Sample/symbol set to 2 and bits/symbol set to 1.   I looked at the
the python code and it looks like to me you should be able to connect both
the decoder and encoder directly up to the DPSK Mod/Demod...correct?   Any
thoughts?

Jody



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