On 9/23/15 2:50 PM, Magnus Danielson wrote:
Jim,
There is some systematic bumps in there which make me wonder what
happens here. Care to share data/plots for phase?
Sure..
This is just the part sitting on my desk with the source hooked up with
clip leads. The run is very short (5-10 minutes) so there's, at the
least, some thermal effects.
Over that 10 minutes, with the Rb, the frequency slowly decreases (about
0.1 ppm over that time span).
This thing is also powered off the USB from the computer it's hooked up
to, and the environment is hardly quiet.
I'll get some data files and a better test setup.
You want to understand the systematics when it looks like that.
Cheers,
Magnus
On 09/23/2015 09:09 PM, Jim Lux wrote:
a bit more than 5 minutes of data.
Now to go get a real 1pps source that's decent.
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