[evlatests] Latest on Ka & Q-Band Receiver Installations

[Charles Kutz]

ea01, ka band

Bob Hayward's previous message: "The turn-buckle brackets have yet to be 
installed and the Antenna Mechanics will also have to align the feed to 
the sub-reflector and the metal plate over the feed tower will have to 
be replaced with a Goretex radome."

Has this been accomplished yet?

Ken Sowinski wrote:
> On Wed, 19 Nov 2008, Ken Sowinski wrote:
> 
>> We will take care of the Ka band on ea01 when we here the plate
>> has been removed, and ea28 at Q band when it is again available.
> 
> A summary of work in progress.
> 
> ea28 Q band
> Probably OK, but fringes only very weakly probably because of poor
> pointing.  It will be looked at mroe closely tomorrow.
> 
> ea01, Ka band
> Doesn't fringe at all.  Power from somewhere is getting to the
> downconverter and the noise tube modulation is detected, but
> there is no fringe amplitude at all.  Nothing in the crossed
> hand products either.  Either the pointing is way off, or
> something is mis-wired so that Ka band is not really selected
> when we think it is.
> 
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