[time-nuts] New OCXO claims ppb performance.

Bob kb8tq kb8tq at n1k.org
Fri Jan 26 10:42:38 EST 2018


The “ppb” number in this case is the temperature performance. Indeed, that is “pretty close” to 
the temperature performance of the CSAC. Aging is rated at 50 ppb / year. That’s a bit further
out than what a typical CSAC will do. 

In either case, if you let the beast run for a year, it is aging that will dominate the error. Temperature
and voltage affects will be minor on either the CSAC or this OCXO *if* it runs “open loop” for a long
time. On the other hand, if it “phones home” for a sync on a daily basis, aging does not matter much
at all.


> On Jan 26, 2018, at 6:29 AM, Blair Lade <blairl at bettanet.net.au> wrote:
> Have just seen this and is relevant to the current CSAC discussion
> https://www.iqdfrequencyproducts.com/news/2018/01/18/iqd-targets-high-performance-communications-applications-with-new-tight-stability-low-phase-noise-ocxo
> Blair lade (Australia)
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