Tom Clifton wrote:
> The manual doesn't give much direction on tweaking the disciplining 
> parameters.  Also, not having anything better to compare results to, I'm 
> pretty handicapped.  Has anybody done any tweaking and perhaps can offer any 
> suggestions?  
>
> Over the weekend I was able to get a GPS antenna on the roof coupled to the 
> receiver in the basement by using an abandoned run of RG6 (Thanks Direct-TV! 
> - The AT&T U-Verse doesn't fade during storms...)  Logging of the 10mhz shows 
> it stays pretty much under 0.05ppb.  The Excel graphs are easy to generate, 
> but not easy to use if that makes sense.  Limited to 32k datapoints per graph 
> and very difficult to zoom in on.
>
> Also, Is anybody else as confused as I am by negative ppb numbers???  is 
> 0.00ppb the 10x-11 "baseline" so that -0.01ppb is really 0.009ppb?
>
> Tom
>
>   
Tom

Surely the ppb measure just reflects the measured frequency error 
(actual OCXO frequency - 10.00000000000000000000000MHz ) in parts per 
billion, so a -ve ppb just means the sign of the error has opp0site that 
for a +ve ppb number.

Bruce

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