[evlatests] ea01 on master pad & re-indexing check.

[Dan Mertely]

I was told that they remove the P-band cross-dipole for this check
and replace it with a mirror.  -Mert

On 1/19/2016 9:57 AM, Paul Harden wrote:
>
>
> On 1/16/2016 2:38 PM, Ken Sowinski wrote:
>> Has the subreflector been reindexed after its refurbishment?  If so
>> we need the correct rotation settings; if not we should decide whether
>> we want to do so before further pointing corrections are made.
>
> We had to do some considerable rebuilding on the P-band dipole for
> EA01.  It was an old spare unit not used in years.  While it has the
> alignment target on the bottom plate, I don't recall if I checked how
> closely it was aligned to the dipole elements.  It is possible to mount
> that plate with a 2-3 degree offset between the target cross-hairs and
> the elements.  Would that be a factor here?  Is that used for the
> subreflector indexing?  If so, we can drop the dipole and check the
> alignment of the target.
>
> Paul
>
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