[evlatests] S-Band compression chart

Rick Perley rperley at nrao.edu
Mon Dec 14 15:37:05 EST 2015


     Wes asked for a list of 'compressed' antennas at S-band.  I 
recovered some data of last summer, involving Cygnus A (which ~ 
quadruples the system temperature).  Here is a list of the PDif 
compression, for the 'BD' IFs (at about 3400 MHz).

  Ant         RCP              LCP
------------------------------------
1              .91              .93
2              .97              .91
3             1.07 (!)        .91
4               .95             .88
6               .92             .94
7               .86             .87
8               .90             .89
9               .95             .92
10             .94             .98
11             .96             .94
12             .91             .90
13             .91             .94
14             .91             .90
15             .94             .91
16             .95             .96
17             .89             .80
18             .96             .91
19             .94             .95
20             .88             .92
21             .96             .99
23             .95             .93
24             .95             .92
25             .76             .82
26             .92             .92
27             .93             .91
28             .93             .95
-------------------------------------





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