[evlatests] X-Band Status

Rick Perley rperley at nrao.edu
Thu Oct 5 15:50:47 EDT 2006


    Antennas 13 14 18 and 24 gave good fringes on all IFs.

    Antenna 16 was dead on IFs A and C.

    Antenna 26 was dead on all IFs.  It should have worked on IFs A and 
C (and did yesterday).  The operator's email indicated an azimuth limit 
problem. 

    I note here that antenna 24 worked on the LCP channels, unlike L and 
C bands.  Hence it seems the problem lies in front of the downconverter, 
probably in the LSC converter for LCP. 





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