[evlatests] Ka-band
Rick Perley
rperley at nrao.edu
Thu Jun 4 16:08:43 EDT 2009
Two problems noted at Ka-band from data taken on Tuesday night.
1) Antenna 28 still shows no fringes. Has it ever? The RCVR is
stated to have been installed and useable last Feb 9.
2) Antenna 1, in IF 'D' only, did not tune to (or at least showed no
fringes at) any of the four frequencies requested: 32.3, 30.6, 28.8, or
26.9 GHz. This is a repeatable failure -- it occurred also a few days
ago. All other (working) Ka-band antennas tune correctly. That same
antenna, in IF 'C', tuned just fine to the four high frequencies
requested: 39.5, 37.8, 36.0 and 34.2 GHz.
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