Agilent Technologies 8590 Series Service Manual page 262

Troubleshooting the IF Section
IF Power-Level Measurement
Table 5-2 IF Section Gain Table in dB
Reference
Level
(dBm) *
0
−1
−2
−3
−4
−5
−6
−7
−8
−9
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−131
−132
−133
−134
−135
−136
−137
−138
−139
* For instruments with 75 Ω Input Impedance, change the display units to dBmv.
† The gain of the 10 dB step-gain stage is 15 dB when enabled and 5 dB when disabled.
‡ Turn CORRECT ON OFF off to remove the amplitude error corrections generated by CAL
AMPTD.
262
A12 A12 Step
Calibration Gain †
Attenuator (Log/Linear
(Log/Linear Mode)
Mode)
10 0
9 0
8 0
7 0
6 0
5 0
4 0
3 0
2 0
1 0
10 10
10 20
10 30
10 40
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
10 50
9 50
8 50
7 50
6 50
5 50
4 50
3 50
2 50
1 50
A14 Gain A16 Video
(Linear Offset
Mode) (Log Mode)
‡
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
10 10
20 20
30 30
40 40
40 50
40 60
40 70
40 80
40 80
40 80
40 80
40 80
40 80
40 80
40 80
40 80
40 80
A16 Video
Offset
(Linear
Mode) ‡
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
20
30
40
40
40
40
40
40
40
40
40
40
Chapter 5