Problem in using trellis Error correction en- and decoder

Hello ,

 I am using trellis encoder and trellis viterbi block, to get a

error corecction method.
i take a snapshot for you:
http://img213.imageshack.us/img213/3435/pantallazoxe.png
The flow:
—>Packet Encoder—>DBPSK Encoder–>DBPSK Decoder—>Packet
Decoder---->
works perfect.
Problem is trellis encoder input and trellis viterbi decoder output
do not match.
why don’t match?
I, read the documentation about the FSM file format. ( in gr-trellis
directory)
the example, in the directory don’t work (FILE error).
Need i chunks to symbols block as the example?
Thanks in advance
Francisco

please change the “prefix” variable in this grc graph to the
absolute path of your gnuradio tree.
Eg, in my machine it is
“/home/anastas/gnuradio_trunk/”

Also, you might want to put a throttle somewhere.

Achilleas

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