[evlatests] ea17, Ku-band, LCP

Jim Ogle jogle at nrao.edu
Wed Aug 16 10:49:19 EDT 2023


There were two JIRA tickets written up for ea17's Ku-band in that period, WO-17964 and WO-18001. 

Jim

> Hi Rick,
> 
> I see the problem on the 13th and the 17th. Prior to and after these dates,
> the problem is gone. I'll see if there was an issue resolved on
> ea17 in July. July 24th stress and beyond shows LCP and RCP about the same.
> 
> Rob
> 
> On 8/16/2023 8:43 AM, Vivek Dhawan via evlatests wrote:
> > Rick, have a look at the stress test (single subband, but should show
> > if lcp is worse). ill take a look when i get to internet at work
> >
> > On Wed, August 16, 2023 08:33, Rick Perley via evlatests wrote:
> > | In calibrating data taken on July 17, I find that ea17, LCP, and
> > | Ku-band is very weak, with Tsys about 700K at the low-frequency end,
> > | somewhat better at the high frequency end.   RCP side is fine, so
> > | we can't blame water in the horn...
> > |
> > | Is this an issue already known and repaired?
> > |
> > | Rick
> > |
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> > |
> >
> >
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