John,
After a night's sleep and a rereading of your post I finally realized
what I was doing wrong. I did not understand the the role of the
sampling interval setting and the display rate setting on the 5370.
When I follow the process below the results are totally consistent.
Sorry to taken your time and thanks all for your help. Now to find the
original issue.....
Bob Darby
On 7/7/2013 8:57 PM, John Miles wrote:
So the only difference between the test setups is the setting of the
Display Rate control on the 5370, correct? You're allowing TimeLab to
estimate the sample rate automatically, and giving it enough time to
converge on a stable reading before hitting 'Start Measurement'?
You're correct in that changing the real-world sample rate should
yield results that are identical (or at least very similar) to
resampling the phase data after the fact. In frequency mode, dead time
between readings would make that an iffy proposition, but for data
taken in TI mode the outcomes should be close. -- john, KE5FX Miles
Design LLC
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