[evlatests] K-Band Status

Rick Perley rperley at nrao.edu
Thu Oct 5 16:15:15 EDT 2006


    At K-band, antennas 13, 14, 16, 18 and 24 worked well on all four IFs! 

    The problem noted in the earlier messages, with 16 A and C being 
dead at L, C, and X bands, did not occur here.  If only L and C bands 
were dead on IFs A and C, I'd have thought the problem would lie with 
the 1st LO.  But that shouldn't bother X-band. 

    Sensitivity:  Referenced pointing was done to ensure on-axis 
sensitivities. 

    K-band sensitivity is within normal bounds, with some antennas 
better than others, but all within the general envelope.

    Here is the 'matrix rankings'.  A low number is good, a high number 
bad. 
          A      B      C      D
-------------------------------------------------------
13   |  5       5        6       6            A good antenna!
14   | 10     25     19      21            At the low end
16   |  7       4        7       19           Good!
18   |  25     21     24     24           Near the bottom
24   | 19     18     17      16            middling ...
---------------------------------------------------------------------  



More information about the evlatests mailing list