[evlatests] ea23 returns, slowly

[Bob Hayward]

Chuck Kutz wrote:
> The Ku receiver is waiting on Hayward for test.
> 

And Hayward has been...

1) testing & debugging the first L-Band Solar Receiver, slated to be 
installed on Ant 24 in less than 2 weeks.

2) testing & debugging the latest upgraded VLBA C-Band receiver, slated 
to be shipped to Brewster on Sept 19th.

3) testing & debugging the new improved EVLA-style C-Band receiver, 
which has a new thermal gap assembly from the VLBA installed in it (that 
  will knock about 5K off the T(rx) at the low-end) and which needs to 
be ready by Sept 19th when we have a couple of engineers visiting from 
Arecibo who want to look at the receiver (and hopefully buy one).

4) sorting out annoying axial ratio problems in the C-Band polarizers 
(it seems all OMTs may not be created equal).

5) preparing for Thursday's "Dog & Pony" show.

6) and writing stupid memos like this.

I'll try to fit the Ku-Band S/N 15 receiver testing in when I can find 
the time over the next few days - unless someone wants any or all of the 
above dates to slip.

-Bob


> -----Original Message-----
> From: evlatests-bounces at nrao.edu [mailto:evlatests-bounces at nrao.edu] On
> Behalf Of Ken Sowinski
> Sent: Tuesday, September 06, 2011 3:18 PM
> To: Ken Sowinski
> Cc: evlatests at aoc.nrao.edu
> Subject: Re: [evlatests] ea23 returns, slowly
> 
> On Tue, 6 Sep 2011, Ken Sowinski wrote:
> 
>> X and L band receivers are not yet installed
>> S band works
>> C band works, but the polarizations are backwards
> 
> C band cables have been reversed; pointing will be done tonight.
> 
>> Ku band rotation setting is unknown
> 
> A rotation setting has been provided, but there seems to
> be no receiver.  the downconverters show no power at Ku band.
> 
>> K band works, but is very weak, probably because of poor pointing
>> Ka and Q bands not examined
>>
>> If C band cables are swapped today we can do pointing tonight.
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