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Matt D md123 at nycap.rr.com> All of the error correcting block codes used in P25 are the sort where > the codeword includes the encoded data verbatim; the code appends bits > used for error correction, but a receiver can ignore those and just pull > out the data bits. This greatly increases the likelihood of > post-decoding bit errors, but it works fine when the SNR is good. > OK great, so I'll work on the error correction later. My question now is how are the data bits currently extracted, or separated, from the extra parity bits? So, from the bit_vector& frame_body I can extract the 240 bits the LCW information is in; the question is how do I know where the 12, 6-bit symbols (hex bits or codewords) are within this 240 bits? Please excuse me if there is some obvious answer to this, I am asking in interest of time. Thanks! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/op25-dev/attachments/20130715/6f43dbaf/attachment.htm>