[Discuss-gnuradio] Unable to find header decoding block

Dear All,

I was exploring the narrowband benchmark codes, I am not able to figure out how the header of an incoming packet is read. It appears that the connections made are:

uhd_receiver->[channel_filter->(demodulator->correlator->framer_sink)] where framer_sink has the received packet queue. However, the queue_watcher function is defined so to unmake the payload, which means that the header has been read apriori. I would like to know in which step the packet header is read, and how to access the signal processing block that does it.

I need to customize the packet header and add extra processing to the header decoding block. Any help would be much appreciated.

Thanks and Regards,
Dhrubo

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Dhrubojyoti Roy

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