Hi
Well *maybe* they came from Oscilloquartz. They could easily have come from
somebody
else and been rejects because of that …..
Bob
> On Apr 25, 2019, at 5:36 PM, Dan Rae via time-nuts
> wrote:
>
> On 4/25/2019 1:13 PM, Bob kb8tq wrote:
>> Pretty much all of these OCXO???s (regardless of
On 4/25/2019 1:13 PM, Bob kb8tq wrote:
Pretty much all of these OCXO???s (regardless of seller) come out of a pretty
brutal
scrap process. It is ???normal??? to get more bad then good when you buy a
group of
them.
Absolutely agree with that when it somes to those out of China, but the
"UTC
100 hours is not nearly enough time for the OCXO to stabilize... you need more
like 1000+ hours. Here is results of measurements when I put an 8663 into an
HP-53132A counter:
UTC 8663 mounted on Sweeny DOCXO card in a HP 53132A counter. The 8663 had
not been powered up for over 10 years.
Hi
I don’t really see anything in your plots that looks like it correlates with
temperature.
You may have processed it out with some of your fitting and regression stuff.
There *is* something going on with he red line. What it is … very unclear. Best
guess
would be a bum solder joint
In testing a new OCXO, I found it had more drift than a previous one. I'm
happy with the better one, not so much for the poorer one. I'd like get some
opinions on whether the performance of both seems reasonable.
I bought both from a US seller. They’re UCT 108663-01, a double oven OCXO. I
