At C-band, the two subbands were tuned to 4440 and 6690 MHz. The
flux density from Taurus A at 6000 GHz is about 610 Jy, (more than twice
Cygnus A). The observed antenna temperature from Taurus A was close to
60K -- close to tripling the total system temperature.
PDif compression is seen in nearly all antennas -- and there are two
antenna-IFs with very clear PDif *expansion*.
Antenna A B C D
------------------------------------------------------------
1 96 97 94 97
2 109 97 92 95
3 76 95 90 94
4 85 84 88 92
5 94 97 86 92
6 89 89 86 96
7 94 96 95 94
8 78 92 94 96
9 96 96 95 100
10 in barn
11 96 97 94 98
12 90 94 93 97
13 96 94 87 93
14 92 96 90 94
15 88 88 84 91
16 85 94 96 100
17 78 88 92 94
18 96 95 93 96
19 88 82 80 87
20 96 95 98 96
21 87 92 91 91
22 98 95 93 93
23 105 100 96 100 see note below
24 88 79 88 90
25 84 76 93 86
26 94 100 95 98
27 93 95 98 100
28 95 94 96 95
----------------------------------------------------------------
ea23, in the 2nd IF (B and D), has PDif and PSum values about 1% of
the expected level.