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

[w w]

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