[evlatests] crossed fibers

Jim Jackson jjackson at nrao.edu
Mon Sep 21 19:20:41 EDT 2009


Yes, this does indeed seem to be the case.  The RMS values on Antenna 
3's deformatters change when I change Antenna 2's T304 
attenuators.  Unfortunately, no one is at the site to fix it.  It 
will be fixed first thing in the morning - unless enough other 
antennas are down that a call out is required.

Jim

At 04:59 PM 9/21/2009, Ken Sowinski wrote:
>ea03 was moved today and was very difficult to bring up.
>The reason is that fibers were crossed when the patch
>cords were moved.  At least the IF signals from ea03
>appear where those from ea02 should be, and vice versa.
>As a result neither of those two antennas will work until
>the right connectinos are made.
>
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