[time-nuts] Ultra High Stability Time Base Options for 53132A

Bob Camp kb8tq at n1k.org
Sun Apr 12 09:24:20 EDT 2015


Hi

The savage was a typo, but I suspect that in this one case the typo may have been pretty
accurate. Based on the pictures I’ve seen of the people salvaging the boards, it’s not a very
precise process.

Bob
> On Apr 12, 2015, at 7:33 AM, James via time-nuts <time-nuts at febo.com> wrote:
> 
> Was the "savage" deliberate or did you mean "salvage" - they are probably both accurate.:)
> 
> James
> 
> 
> 
> 
> 
> 
> 
> -----Original Message-----
> From: Bob Camp <kb8tq at n1k.org>
> To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
> Sent: Sun, 12 Apr 2015 0:17
> Subject: Re: [time-nuts] Ultra High Stability Time Base Options for 53132A
> 
> 
> Hi
> 
> All of the MV-89’s that I have seen are very much a crap shoot in terms of
> 
> what you get. Out of a dozen or so I’ve bought from various sources, none
> has
> met the original specs on the unit. There have been a wide range of issues.
> Doing
> a full test on one involves a lot of work. The problems with some of them
> are major
> the problems with others are fairly hard to spot. 
> 
> I do not
> believe that’s a reflection on the original design of the part. I’d bet that
> nearly 
> 100% of them meet spec when new. I think it’s purely due to the amount
> of violence done to 
> them when they are pulled from boards during the savage
> process. 
> 
> Bob
> 
>> On Apr 11, 2015, at 8:01 AM, J. L. Trantham
> <jltran at att.net> wrote:
>> 
>> Has anyone done any testing/comparison of the
> three aftermarket UHS Time
>> Base Options for the 53132A that are on theBay?
>> 
> 
>> 
>> 
>> One is from Poland:  111643536543
>> 
>> 
>> 
>> Two are from China:
> 181698758773 and 331420737911
>> 
>> 
>> 
>> All use the Morion MV89A and all
> appear to be 'plug and play' with the
>> automated time base calibration process
> of the 53132A.
>> 
>> 
>> 
>> I recently added the 3 GHz Prescaler from the
> seller in Poland
>> (111631156891) and was very satisfied.  No connection other
> than a satisfied
>> customer.
>> 
>> 
>> 
>> I also recently added the HP Opt
> 010, one of the 10811 based time bases, and
>> was very satisfied as well.  Just
> wondering if there is something better.
>> 
>> 
>> 
>> Thanks in advance for any
> thoughts.
>> 
>> 
>> 
>> Joe
>> 
>> 
>> 
>> 
>> 
>> 
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