[evlatests] C-band Lunar compression

[Rick Perley]

    The moon adds about 130 K at this band -- power ratio (moon/coldsky) 
is about 5 to 6. 

    ea27 has zero-mean (noise only) PDif on all four IFs. 

    Compression table (100*(PDif on Moon)/(PDif on cold)) is:

Ant.     A      B      C      D
---------------------------------
01       91    93    85    94
02       87    76    77    83
03       44    76    79    81
04       75    60    85    80
05       90    96    74    81
06       71    70    74    91
07       81    85    88    85
08       65    79    90    88
09                out
10       59    X    78    55
11       79    83    77    89
12       75    73    83    92
13       92    78    77    74
14       76    79    77    77
15       70    83    67    62
16       68    78    88    97
17       53    55    75    73
18       87    77    78    67
19       96    76    70    80
20       97    87    90    90
21       76    77    81    79
22       97    86    85    85
23      105  111   83    94
24       78    76    83    69
25       77    87    89    83
26       88    98    92    94
27         zero-mean PDif
28       95    94    93    97