Agilent Technologies 8590 Series Service Manual page 190

Making Adjustments: If 3335A Source Not Available
7a. Log and Linear Amplifier
Table 2a-3 Log Fidelity Check
Synthesized Sweeper Level
Reference from
Reference − 10 dB
Reference − 20 dB
Reference − 30 dB
Reference − 40 dB
Reference − 50 dB
Reference − 60 dB
Reference − 70 dB
Linear Output and Step Gain Adjustments
20.Press the following analyzer keys.
21.Set the synthesized sweeper amplitude to the level recorded in
22.Make the adjustments indicated in
Table 2a-4 Linear Gain Check
Adjust
Sweeper Level
A14R34 Reference from
A14R33 Reference from
A14R30 Reference from
A14R27 Reference from
N/A Reference from
190
step 8
−dBm
, 50,
AMPLITUDE
(LIN),
SCALE LOG LIN
,
AMPTD UNITS dBm
and adjust A14R34 LIN for a DMM reading of 1000 mV ±1 mV.
8
Synthesized External
Attenuator,
8496G (dB)
step 8
step 8
step 8
step 8
step 8
DMM Reading
1000 mV ±1 mV
875 mV ±3 mV
750 mV ±4 mV
625 mV ±4 mV
500 mV ±5 mV
375 mV ±6 mV
250 mV ±7 mV
125 mV ±8 mV
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Table
Analyzer
Reference
Level (dBm)
−50
0 dB
−60
10
−70
20
−80
30
−90
40
2a-4.
DMM Reading
1000 mV ±1 mV
1000 mV ±5 mV
1000 mV ±5 mV
1000 mV ±5 mV
1000 mV ±30 mV
Chapter
step
2a