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[hfsig] RE: random byte stream compression - probably not

Darryl Smith Darryl at radio-active.net.au
Mon Sep 27 17:09:53 UTC 2004


>Whether or not GPS/NTP time synchronization
>would help with improving data communication
>still remains.

Not sure what this is all relating to, but NTP/GPS can help decoding,
provided that the variations in channel delay are not significant compared
to the bitrate being decoded.

If the variations change too much (like on HF), then NTP will not help too
much. Coherent CW works well for moon bounce since the variant delay of the
channel is much lower than the size of the 'di' tone.

Darryl






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