[evlatests] C-Band Performance
Rick Perley
rperley at nrao.edu
Thu Oct 19 13:55:51 EDT 2006
In short, C-band performance is superb.
All 5 operational EVLA antennas are fringing in all four IFs.
There are no pecularities of any kind to report on.
(Special for Rob and Jim: All IFs of antenna 16 are working
perfectly. Whatever you guys did seems to have worked.)
Sensitivity of these five antennas remains far better than the VLA
antennas -- as they should be. However, amongst the EVLA antennas, it
is noted that antennas 16 and 18 are the poorest. If the Tsys tables
are accurate, the cause of this is not system temperature, as all five
antennas, on all IFs, show Tsys between 20 and 30 K, as expected. (VLA
values are typically 35 to 50 K).
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