[evlatests] L band on EA24
Bob Hayward
rhayward at nrao.edu
Fri Nov 4 18:30:05 EDT 2011
For what it is worth, work order number C130120 was CLOSED out after the
cables were swapped last week:
Work Requested: Failure - R. Perley reports that antenna 24 L-band is
cross-polarized.
Corrected Action: Swapped RCP & LCP at the receiver. 31Oct.11--JMc.
Adjusted or Completed
Once again proving that two negatives always make a positive...
-Bob
Ken Sowinski wrote:
> On Fri, 4 Nov 2011, Steven Durand wrote:
>
>> The Cryo guys have just finished swapping the RCP with the LCP
>> onEA24 L band
>
> ea24 does indeed work properly at L band. The polarizations
> were swapped a few minutes ago. I cannot say whether that was
> the problem days ago when no/weak L band fringes were seen.
>
>> 3:50 pm Friday November 4, 2011
>>
>> I can not test the L band because the antenna is in a X band
>> observation.
>> --
>> Steven J. Durand National Radio Astronomy Observatory
>> Electronics Division Head. 1003 Lopezville Road
>> 575/835-7103 Socorro, New Mexico 87801
>>
>>
>>
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