On 07/09/2012 12:46 AM, paul wrote:

Peter indeed there could be
But it should not need to be decoded to undo the psk.
Plus documentation lacks some of the details I think to actually do it.
But that would be a significant project since the formats not been
settled completely yet.

I have looked at the PTTI 2011 paper (wwvb.pdf) and much of a format is being shown. Has anyone established the 14 bit sync-word and verified the format? It seems that aligning up with the normal AM broadcast should be possible.

Can someone record it as it has been reduced to say 2 kHz and analyze the produced audio file? Recoding with 48 kHz sampling rate should allow almost trivial 2 kHz I-Q demodulation to illustrate phase swaps.

Cheers,
Magnus

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