[time-nuts] Secondary phase noise standard & FE405

Hal Murray hmurray at megapathdsl.net
Sat Nov 12 20:13:08 EST 2016

kb8tq at n1k.org said:
> Yes, the FE-405 uses a DDS and a cleanup. Inside the cleanup loop the DDS
> spurs come  straight through. Since the FE-405 compensates for all sorts of
> things, the DDS moves around a lot. Even a one bit change on a DDS will move
> spurs around. With an ever changing  DDS, you have an ever changing forest
> of “stuff” on the output.  

Is there a web page or such telling me where the spurs will be on a DDS for a 
particular constant?

These are my opinions.  I hate spam.

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