[evlatests] ea21 ACU progress

[Keith Morris]

Ken:

If your ea21 L-band test was approximately 1500 - 1530 local time 
yesterday, it appears that there was no power at the output of the T304, 
with the output attenuators at zero.  This implicates L302 tuning.



On 8/28/2013 5:53 PM, Ken Sowinski wrote:
> I report for  Greg and Hichem who have been doing the work.
>
> We ssuccessfully controlled ea21 using the new ACU today.
> Fringes were seen at L band andX band.  Preliminary collimations
> at S band were set.  More tuning is planed for tomorrow morning
> followed by a short bouot of S band pointing to distinguish
> collimation and zero offset errors.  More tests will await
> signoff from the engineeers and more successful simple operation.
>
> Note that the L band receiver is not working.  There seems to
> be adequate power getting the the T304s, but no power getting
> out.  It is hard to blame the L302s because S and X bands work.
> Any ideas?
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-- 
Keith Morris
National Radio Astronomy Observatory
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Socorro, NM 87801
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