[time-nuts] Thinking outside the box a super reference

Mark Spencer mark at alignedsolutions.com
Thu Nov 3 17:58:52 EDT 2016

On a somewhat related note....

Several years ago I pondering getting a Cs standard.   After considering the performance of my references and my stack of time interval counters I concluded that in practice I could more or less get the level of measurement accuracy I wanted by comparing the "device under test" to a reference and at the same time comparing the reference to several other references.   I wouldn't want to use this technique in a professional setting but for my hobby use I believe it met my needs.

In hindsight though I expect I could have bought a fairly nice Cs unit for the money I sunk into the time interval counters and the various references but that wouldn't have been as much fun.  The wear out aspects of used Cs standards are also a bit of a concern for me.   That being said a few of my time interval counters have also stopped working properly so I seem to have just traded one set of issues for another but I'm considerably more optimistic of being able to repair / re align a couple of my HP5370's than trying to revive a dead Cs standard.

All the best 
Mark S

> On Nov 3, 2016, at 1:37 PM, Ruslan Nabioullin <rnabioullin at gmail.com> wrote:
>> On 11/03/2016 04:07 PM, Bert Kehren via time-nuts wrote:
>> Over the past there has been talk about building from  scratch high
>> performance references. I think consensus was that it is out of  reach.
> What about instead establishing an open-source hardware project for a frequency standard fusor?  I was researching COTS solutions for this for my rubidium ensemble and could only find this one product, which obviously should be exorbitant in cost: http://vremya-ch.com/english/product/indexe817.html?Razdel=11&Id=54
> -Ruslan
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