[time-nuts] Raw phase data of super-5065

Magnus Danielson magnus at rubidium.dyndns.org
Thu Jun 14 09:14:55 EDT 2018


Hi,

All I have seen so far is an ADEV plot, and that is not a good tool to
estimate such systematics in. I would like to see the phase & frequency
data, it would probably be better for this type of diagnostics.

Do we have the raw measurements in a readable format?

Cheers,
Magnus

On 06/14/2018 03:06 PM, Bob kb8tq wrote:
> Hi
> 
> I’d say both have a “something” with a period of roughly 18 to 20 hours in their
> data runs. 
> 
> Bob
> 
>> On Jun 14, 2018, at 4:54 AM, Attila Kinali <attila at kinali.ch> wrote:
>>
>> On Wed, 13 Jun 2018 08:19:58 -0700
>> <cdelect at juno.com> wrote:
>>
>>> Would be interesting to see a long plot of the two 5065 against each
>>> other!
>>
>> I had a look at Luciano's data and it's probably safe to say, that
>> the instability of the super-5065 would be the limit. The unmodified
>> 5065 is incredibly stable (once you remove drift).
>>
>> Attached are the two phase plots, both with quadratic drift removed.
>> The unmodified 5065A has a kind of weird ~18day undulation. I would
>> say it's an environmental effect, but the two cycles are too similar,
>> so I do not know what to think of it.
>>
>> The super-5065 (5065B) has quite a few bigger frequency jumps, with
>> pretty stable phases in-between. My guess here would be that there
>> are no environmental effects and it is limited by instabilities in
>> the frequency discriminator electronics, ie offsets that show (close to)
>> discrete jumps. or that the lamp brightness changes.
>>
>> 			Attila Kinali
>>
>> -- 
>> It is upon moral qualities that a society is ultimately founded. All 
>> the prosperity and technological sophistication in the world is of no 
>> use without that foundation.
>>                 -- Miss Matheson, The Diamond Age, Neil Stephenson
>> <HP5065Anr2 vs Z3816A 30days.png><HP5065Bnr1 vs Z3816A 30days.png>_______________________________________________
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