I got a new 5370A, so of course I've been running a bunch of tests on it. In
the image linked below, the start channel is my PRS-45A, the stop channel is my
GPSDOe ("e" is for engine) and the ARM channel is fed by the PPS from my
SSR-6Tru. As you can see in the notes, the test parameters are all the same,
except for the clock source for the 5370A. As you might guess, my question is
about the blue line, which is where the 5370A uses its internal 10811 as its
clock reference. Is it normal for tests run like this to have the left side of
the ADEV be such a "wiggle" on the internal reference? I had noticed the same
thing with the 5335A I've been using up till now and had just assumed there was
a problem with its 10811. The OCXO in my GSPDO is a surplus Trimble 34310-T.
It's been running for several weeks, but is still in retrace.
http://evoria.net/AE6RV/5370A/Test1.png
And kudos to John for Timelab. It doesn't play well with Wine in Linux, but
that's not terribly surprising, all things considered.
Bob
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