[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 ...
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