[evlatests] Bad SPW

Rick Perley rperley at nrao.edu
Thu Jun 29 17:01:42 EDT 2023


Just to be clear -- these SPW numbers are those provided by AIPS ...

On 6/29/23 14:45, Rick Perley via evlatests wrote:
> Important correction noted below ...
>
> On 6/29/23 14:42, Rick Perley via evlatests wrote:
>> In reducing some data  taken over the past week or so, I note that a 
>> single spectral window, at Ku, K, and Ka bands, gives only noise -- 
>> no coherent signal visible in either polarization.
>>
>> The SPW is:  #44 in Ku band
>>
>> and              #21 in both K and Ka bands.
>>
>> The problem is not *seen* in the low frequency bands (L though Ku).  
>> Q-band was not observed.
>>
>> The problem was in every database taken since june 22.
>>
>> Rick
>>
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