[evlatests] ea13 status: revised

Ken Sowinski ksowinsk at nrao.edu
Mon Aug 11 18:51:34 EDT 2014


On Mon, 11 Aug 2014, Wes Grammer wrote:

> Ben and Dan had a look under the feed radome today on the K-band RX in ea13, 
> and found a lot of water collected at the bottom, right against the window. 
> They've drained it out, and are drying the feed as best they can. We need a 
> test to confirm it, but it's highly likely we've found the culprit.
>
> It's a bit surprising there was so much water in it, as the receiver was 
> installed on July 29, the day before it went out on the master pad. Ben is 
> looking into whether the radome material and/or retaining ring need to be 
> replaced.

Yes, it worked well enough to see that the polarizations were swapped.
Cables were swapped and it now looks fine.

thanks,
Ken



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