[time-nuts] HP-5065a Viz Efratom FRK-H (or L)

Bob Camp lists at rtty.us
Mon Jul 2 20:54:20 UTC 2012


Hi

The FRK's (of any era)  are not quite as good as a properly running 5065A on short term stability.

Bob
  
On Jul 2, 2012, at 4:45 PM, Robert Atkinson wrote:

> How do the older Efratom FRK series fair compared to the 5065A? 
> 
> 
> Robert G8RPI.
> 
> 
> 
> ________________________________
> From: Bob Camp <lists at rtty.us>
> To: Discussion of precise time and frequency measurement <time-nuts at febo.com> 
> Sent: Monday, 2 July 2012, 20:48
> Subject: Re: [time-nuts] HP-5065a advise and purchase decision
> 
> Hi
> 
> Yes, I have poked at the early ones (1980's). They are the only thing I have seen that will beat the HP 5065. There is also a lot of published data on them.
> 
> Bob
> 
> On Jul 1, 2012, at 5:43 PM, bg at lysator.liu.se wrote:
> 
>> Tom,
>> 
>>> Chris,
>>> 
>>> The HP 5065A is one of the best Rb ever made.
>>> 
>>> /tvb (iPhone4)
>> 
>> Have you or any other list member had the opportunity to take measurements
>> on the ElmerPerkin/EG&G Space rubidiums (in a lab environment)?
>> 
>>   http://www.excelitas.com/Downloads/DTS_Frequency_Standards_RAFS.pdf
>> 
>> --
>> 
>>     Björn
>> 
>> 
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> 
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