[time-nuts] is there a cheap and simple way to measure OCXOs?
attila at kinali.ch
Tue Jun 5 19:47:05 UTC 2012
On Tue, 5 Jun 2012 12:45:24 -0400
"Bob Camp" <lists at rtty.us> wrote:
> The crystal in the OCXO is what likely makes or breaks it's performance.
> About the only way to check the crystal is to measure the ADEV, phase noise,
> and aging of the oscillator. There's really no shortcut there.
> Aging is probably the easiest to measure. A triggered scope, some math, and
> a bit of time will give you a pretty good idea of what's going on relative
> to a reference. Yes you do need a reference ...
Ok.. So then i think i will first measure the oven working "correctly"
(as in power consumption going down) and then the EFC working.
These i can do quite simply with the tools i have at hand.
Stability and phase noise measurements are a bit more involved and i need
to buy equipment to get to that level and/or need more time to do the
Why does it take years to find the answers to
the questions one should have asked long ago?
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