Hi Alex - If you want to share your GRC file with me (privately) and/or the list, we'll see what we can figure out. Guessing it's an OFDM sync issue, since GR's OFDM implementation is for async messages, and those are on a message by message basis. - MLD On Tue, Mar 27, 2018, at 8:50 PM, Roberts, Alex S. wrote: > Michael that provides insight into the error, unfortunately it does > not explain the behavior of the example. The example uses the > tx_packet and rx_packet hierarchical blocks. The output of the tx is > routed to the input of the rx. I bypassed the example channel model > and I’m not using hardware at the moment, so I would expect the > example would have little issue with poor SNR and would maintain sync.
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