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 <rnabioul...@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 > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.