[evlatests] Atten levels for ant 14
Walter Brisken
wbrisken at aoc.nrao.edu
Thu Oct 20 01:00:09 EDT 2005
After the efficiency tests were completed on ant 14 today I tested the
attenuator levels on antenna 14. As for ant 16, IF C was getting IF B's
values. I found 4 values I wanted to change by 1 dB and one value that
got changed by 4 dB. These 5 new values are now in the evlaparm
database. This could be a result of blindly moving much of the
attenuation from the Output stage to the RF stage without checking the
results. IF B showed very high RMS values at the Deformatter. I tried
dis/en-abling the sampler module, but that didn't help.
--W
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