Re: Yaesu AMBE chip


beaupeppybrandypip@...
 

After studying and comparing the decoded bit streams from C4FM recordings and the bit stream from the AMBE-3000 chip it's becoming clear that Yaesu are doing some extra undocumented bit swapping/bit interleaving to the codec channel bits from the AMBE chip before inserting them into their C4FM frames.

grrrrrrrr

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