[time-nuts] Z3815A

John Allen john at pcsupportsolutions.com
Sat Jun 12 01:55:36 EDT 2010


Hi Bert - one way to share large files for free is dropbox.com.  The free
account is good for 2 GB.  Drag and drop for very easy use, it creates a link to
put in your email to get to the file.

As an owner of a (very nice) Z3805A, I would also like to know more about it's
MTI 5 MHz. oscillator, MTI 260-0624-C

MTI's web site is http://www.mti-milliren.com/catalog.html 

MTI 260 - http://www.mti-milliren.com/ocxo_260_ocxo.html

Regards, 

John Allen - K1AE

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On Behalf
Of EWKehren at aol.com
Sent: Friday, June 11, 2010 10:20 AM
To: time-nuts at febo.com
Subject: Re: [time-nuts] Z3815A

I have not seen any plots on the 260 or E1938A on this site, I have only  
been on for a year, how ever I have a "few" 10811s" that Corby Dawson ran for 
me  all below 1 E-12 one as low as 4 E -13 in the 1 to 100 sec. range. My 
problem is  that Corby's file size is 900K and I have not found a way to 
compress otherwise  I would share some of the results.  
Bert Kehren Miami
 
 
In a message dated 6/11/2010 9:52:55 A.M. Eastern Daylight Time,  
sar10538 at gmail.com writes:

Thanks  Bob.

On 12 June 2010 01:24, Bob Camp <lists at rtty.us>  wrote:

> Hi
>
> The 260's are better for  environmental  than a 10811, same / worse than a
> 1938. The  "typical" 260 beats the "typical" 10811 or 1938 on short term /
> medium  term stability. There are some 10811's and 1938's that will indeed
>  beat some 260's for short term stability.
>
>  Bob
>
>
> On Jun 11, 2010, at 9:04 AM, Steve Rooke  wrote:
>
> > On 11 June 2010 07:24, Murray Greenman  <Murray.Greenman at rakon.com>
> wrote:
> >
>  >>
> >> If you have one of the earlier Z3815A units, you  will find the superb 
HP
> >> E1938A 10MHz reference oscillator  inside. There were manufacturing
> >> problems with these units, I  understand, and later ones (like mine) 
have
> >> a Milliren 260  series 5MHz DOCXO (with excellent specs) on a daughter
> >> board  made by Symmetricom.
> >>
> >>
> > That  Millren 260 series DOCXO is used in the Z3805A units too. Any idea
>  how
> > they compare to the E1938A or 10811?
> >
>  > Thanks,
> > Steve
> > --
> > Steve Rooke -  ZL3TUV & G8KVD
> > The only reason for time is so that everything  doesn't happen at once. 
-
> > Einstein
> >  _______________________________________________
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>
>
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-- 
Steve Rooke - ZL3TUV &  G8KVD
The only reason for time is so that everything doesn't happen at  once.  -
Einstein
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