[evlatests] summary of high frequency performance

Chris Carilli ccarilli at nrao.edu
Fri Apr 23 18:12:42 EDT 2010


I have been doing a lot at Q band, and found, besides the antennas 
mentioned below,
that ant 20 had to be flagged consistently.

cc


Ken Sowinski wrote:
> An attempt was made today to see what works and to try to get the
> newest antennas pointing well enough for a collimaiton run to be
> successful.  A good collimation run is now needed for the newest
> antennas.  After the pointing is taken care of focus will be checked.
> The only unexplained problem is ea09 at K band.
>
> K band problems:
> ea04 was out of service
> ea09 was dead.  It looked like there was no receiver.
> ea12 no receiver
>
> Ka band problems
> ea11, ea13, ea14, ea16, ea17, ea18, ea26 all have no receiver
> ea03 AC was dead because the L302 was in standby.
> ea12, ea22 were weak and improved with a collimation adjustment
> ea12, ea21 needed small delay adjustments
>
>
> Q band problems
> ea05 was out of service
> ea12, ea17 have no receiver
> ea07, ea22 were weak, but improved with a collimation adjustment
>
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