[time-nuts] 5680A update

Chris Albertson albertson.chris at gmail.com
Wed Jan 18 23:47:40 EST 2012

On Tue, Jan 17, 2012 at 8:13 AM,  <EWKehren at aol.com> wrote:
> After eight weeks of monitoring to 1 E-12, I still se no aging. Waiting for
>  a change so I can do other tests. One thing I clearly se is a 4 Hz filter
> response changing the output by +- 3 E-11. It may be more, will have to
> find a  way to check it more accurately, because of limited response time. I
> for one  will fix that problem with a Morion MV 89 and a 100 Hz analog filter.
> New  Morion's are available for less than $ 30 the ones I bought seem new.
> That's  also where I got my 5680A

Is the MV89 the best OCXO to use as a reference?   I notice there is a
place selling them for $19.99 buy it now price otis the $30 deal

I want to get setup for frequency stability measurements.  I have a
t-bolt but being conservative (when it comes to engineering) I'd like
a second non-related standard and a good ocxo should work for that
over medium term tau. (I think)I don't know how the various $20 to $30
OCXOs compare. And I don't yet have means to compare them.

Chris Albertson
Redondo Beach, California

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