GNU Radio | Async FEC encoder/decoder loopback | Issue during decoding?
The issue is that the FEC Async Decoder expects the input to be soft decisions with one decision per item instead of packed PDUs.

Here's a working example:



Encoder deployment: 


Packed: yes
Rev. unpacking: yes
Rev. packing: yes


Repack Bits: 


Packet alignment: Output
Endieness: LSB


Decoder deployment:


Packed: yes
Rev. packing: yes