April 14, 2004
TBASERDN040414

Have test dewar in Eq Rm, with Q-band LNA, mixer, and IF amp.  LNA
input terminated with rectangular waveguide load at 21K.  Connected
into OR1, CM1, SF1, and ACS J1.  ACS in 1 bank, 2 sampler, 800MHz mode
(but no input to sampler 2).  LO1 set to 9GHz (fsky=42GHz).

1 : SCAN STARTING AT 53109 12:25:05
1 : SCAN FINISHED AT 53109 12:26:10

T=60s.  Started scan sequence.

2 : SCAN STARTING AT 53109 12:27:53
22 : SCAN FINISHED AT 53109 12:53:56

T->361s.  
23 : SCAN STARTING AT 53109 12:55:20
24 : SCAN FINISHED AT 53109 13:07:41

25 : SCAN STARTING AT 53109 13:07:50
@ 13:08, applied power to heater on input termination (12V, 100mA).

Load=22.0K, LNA=20.8 @ 13:08
Load=33.0K, LNA= 21.1K @13:11
Load=32.8K, LNA=21.0K @ 13:13.

25 : SCAN FINISHED AT 53109 13:13:56
26 : SCAN STARTING AT 53109 13:14:05
26 : SCAN FINISHED AT 53109 13:20:11
27 : SCAN STARTING AT 53109 13:20:20
27 : SCAN FINISHED AT 53109 13:26:26

28 : SCAN STARTING AT 53109 13:26:35
Load=32.9K, LNA=20.8 @ 13:26;  Heater -> Off
Load=21.8K, LNA=20.1 @ 13:30
28 : SCAN FINISHED AT 53109 13:32:41

29 : SCAN STARTING AT 53109 13:32:50
29 : SCAN FINISHED AT 53109 13:38:56
30 : SCAN STARTING AT 53109 13:39:05
30 : SCAN FINISHED AT 53109 13:45:11

(Scans 31-50 were DCR scans on another problem.)

Returned to ACS setup.  
Changed LO1 frequency to 9.25GHz (fsky=43GHz). Rebalanced ACS.

51 : SCAN STARTING AT 53109 15:21:47
52 : SCAN FINISHED AT 53109 15:34:08
Load=21.4K, LNA=20.2 @ 15:34

53 : SCAN STARTING AT 53109 15:34:17
Load Htr -> On @15:34:30
SF1 TP 1.02 -> 1.29
Load=32.6K, LNA=20.9 @ 15:40
53 : SCAN FINISHED AT 53109 15:40:23

54 : SCAN STARTING AT 53109 15:40:32
55 : SCAN FINISHED AT 53109 15:52:53
Heater -> Off at 15:53:20.
56 : SCAN STARTING AT 53109 15:53:02
56 : SCAN FINISHED AT 53109 15:59:08