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Re: Quick and dirty GPSDO build by F2DC and me.


 

On Wed, Jun 23, 2021 at 01:35 PM, Sverre Holm wrote:
A couple of questions: Is there a particular reason why you stopped at 400 s as the?maximum measurement time??
My SI5351 never became stable enough to go beyond 400s (but I now understand this may be the PPS jitter)?
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And second, is this how you compute the frequency error corresponding to a single step at max time resolution: As 400s * 2.5 MHz = 1e9, then at an output?frequency of 10 MHz, one step in the displayed error corresponds to 10 MHz * 1e-9 = 0.01 Hz ?
Yes. Minimum frequency compensation of the SI5351 is 0.01Hz
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HBTE Files section:?/g/HBTE/files
Erik, PD0EK

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