Scott,
It doesn't look like AT-cut. AT-cut oven crystals are run at their upper
turnover point, which is a minimum, so the frequency starts high from power up
at normal room temperature.
With SC-cut, the f/T curve is shifted to the right and they are operated at
their lower turnover point (a
I'm curious if an OCXO has an SC or AT cut crystal in it. There's no
EFC, so I can't measure sensitivity. I did measure the frequency
change from cold startup, thinking that an SC cut would stabilize
quicker than an AT. I don't have a good AT OCXO to compare against,
but I do have a Morion
Scott,
On 08/10/2014 08:54 AM, Scott Newell wrote:
I'm curious if an OCXO has an SC or AT cut crystal in it. There's no
EFC, so I can't measure sensitivity. I did measure the frequency change
from cold startup, thinking that an SC cut would stabilize quicker than
an AT. I don't have a good AT
