[time-nuts] Re: time interval measurement on SR620

[Bob kb8tq]

Hi

The main disadvantage (if you are after ADEV) is the pre-processing
that takes out the noise you are trying to measure. Getting the repeat
rate so that you actually got samples once a second (after all the overhead
and processing) would be a challenge. 

Bob

> On Mar 3, 2022, at 2:28 AM, Mete Balci <metebalci at gmail.com> wrote:
> 
> Hello,
> 
> Is there any disadvantage of using SR620 with TimeLab as described in high
> res freq. measurement document of SRS ?
> 
> 1) DUT (10MHz) is connected to External Clock In
> 2) REF OUT (1kHz) is connected to ChA
> 3) GPS receiver PPS output configured as 1kHz and is connected to ChB.
> 4) Sample size 1000
> 
> Can this value be used in the same sense as in a (normal) single
> measurement (Ch A: GPS PPS vs. Ch B: DUT output converted to PPS) ?
> 
> If not, is there still a benefit of maybe converting REF OUT (not DUT) to
> PPS and using it still like the above configuration but with sample size 1 ?
> 
> Mete
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