[evlatests] ea16 status

[Bryan Butler]

did you have a chance to look at 5 & 10?  it may be that it rained after 
they were drained yesterday, because they both are not working at X-band.

	-bryan


Wes Grammer wrote, On 7/15/14 14:43 :
> A quick, real-time update on ea16 receiver status:
>
> 1. L-band output cables have been swapped, to correct the polarization
> problem.
>
> 2. We've been unable to cool the S-band RX since ea16 went online last
> week. Cryo is here right now, checking the vacuum distribution system
> for leaks - there wasn't an obvious problem with the receiver itself.
>
> 3. The X-band feed did have a substantial amount of water inside. We
> dropped the receiver and radome cover to drain and dry it out. Before we
> leave, we'll reseal it and verify the dry air system is working.
>
> At this point, all 7 other cryogenic receivers are cold and appear to be
> functioning normally.
>
> -Wes
>
>
> On 7/15/2014 11:15 AM, Ken Sowinski wrote:
>> On Mon, 14 Jul 2014, Ken Sowinski wrote:
>>
>>> a16 is on the master pad and is beginning to work.
>>>
>>> Current problems:
>>> 1.  L band ploarizatios are swapped
>>> 2.  S band fringes are weak; perhaps the rx is warm.
>>> 3.  No fringes at X band; more water?
>>>
>>> A pointing run is needed.  That can be doen at C band tongiht if
>>> the antenna is still working at the end of the day.
>> Tilt for ea16 was determined from the pointing run of last night,
>> so the antenna may be moved whenever desired.
>>
>> I have not yet verified that any of the problems listed above have
>> been remedied.
>>
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