[time-nuts] New OCXO claims ppb performance.

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


Hi

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.

Bob

> 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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