[evlatests] Phase stability of ea27 {External}

[Rick Perley]

All bands (from L through Ku), and all IFs from last night's data.

On 6/30/23 11:13, Rob Long wrote:
> This is all bands and all IFs?
>
> Rob
>
> On 6/30/2023 11:10 AM, Catarina Ubach via evlatests wrote:
>> I have created https://bugs.nrao.edu/browse/WO-17810
>>
>> -Catarina
>>
>> -----Original Message-----
>> From: Bryan Butler <bbutler at nrao.edu>
>> Sent: Friday, June 30, 2023 11:04 AM
>> To: Catarina Ubach <cubach at nrao.edu>; Rick Perley <rperley at nrao.edu>; 
>> evlatests at aoc.nrao.edu
>> Subject: Re: [evlatests] Phase stability of ea27 {External}
>>
>>
>> It's a good point, but that wouldn't cause the behavior that Rick sees.
>> It would cause a diurnal sinusoidal error which got worse with higher 
>> frequency, not random amounts for all bands, and changing between scans.
>>    Seems like a loose connection maybe?  But would have to be after 
>> the converters.
>>
>>     -Bryan
>>
>>
>> Catarina Ubach via evlatests wrote on 6/30/23 10:48:
>>> Antenna 27 baselines parameters have not been updated.
>>>
>>> Catarina
>>>
>>> -----Original Message-----
>>> From: evlatests <evlatests-bounces at listmgr.nrao.edu> On Behalf Of Rick
>>> Perley via evlatests
>>> Sent: Friday, June 30, 2023 10:09 AM
>>> To: evlatests at aoc.nrao.edu
>>> Subject: [evlatests] Phase stability of ea27
>>>
>>>    From data taken last night, it is noted that ea27's phase changes 
>>> by large, and seemingly random amounts at all bands observed (L, S, 
>>> C, X, and Ku).  This occurs between scans, and is not seen on other 
>>> antennas.
>>>
>>> Rick
>>>
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