Oscillators need a little noise to start up. Usually there's plenty in
almost any circuit, but if you're running cold, or voltage is a little
low, you might not have enough to start.
The mechanical impulse adds noise (crystal = piezoelectric) to the
feedback loop; apparently enough to get it started.
Might be that your power supply is running a bit low, and you don't have
*quite* enough gain to start.
On 10/16/2017 4:10 PM, Vlad wrote:
Hello,
I am wandering if anybody observe the behavior for OCXO, when its stop
to reproduce the signal, and the only way to return it back to business
is little mechanical stress.
I have TWO of such OCXO. One of them is Austron 11.2 Mhz. And another
one is Vectron model 218Y4442 9.8304Mhz
In case with Vectron, I even disassemble it (to whom who brave here is a
pictures):
http://www.patoka.ca/Vectron-218Y44442/
Then as I connect it to the PS, I realize it start to reproduce the
signal again ! Before this it was nothing ! I tried different PS before
to open this "can" as a last resort.
For the Austron - I didn't disassemble it. Instead I just kick it a
little bit. And immediately after that, it start to produce the signal !
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