[evlatests] Antenna status, Tuesday noon

Rick Perley rperley at nrao.edu
Wed Sep 10 11:20:42 EDT 2008


    I ran tests yesterday noon, at all bands.  A quick summary of 
performance, by band.  Antenna 25 was out of the array.  All others were 
pointing. 

    1)  P-Band.  No fringes from 1, 3, 4, 5, 15, 16, or 21. 

    2) L-Band.  All antennas o.k. 

    3)  C-Band.  3 gives weak fringes.  18 gives only noise.  4 is 
erratic -- good some times, no fringes other times. 

    4) X-Band.  3 weak, 4 and 18 are erratic.  5 is erratic on IFs B and 
D. 

    5) K-Band.  3 weak, 4 erratic (good fringes some sources, no fringes 
on others). 

    6) Q-Band.  3 and 4 both weak (or no fringes -- hard to tell at this 
frequency with the sources I had). 

    A stress test was run this morning -- Emmanuel should be able to 
report on its results shortly.





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