Agilent Technologies 8590 Series Service Manual page 67

Table 2-3 Log Fidelity Check
Synthesizer Level
Reference from step 8
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
21.Press the following analyzer keys.
22.Set the synthesizer amplitude to the level recorded in step 8 and
23.Make the adjustments indicated in
Table 2-4 Linear Gain Check
Adjust
A14R34
A14R33
A14R30
A14R27
N/A
Chapter 2
−dBm
, 50,
AMPLITUDE
(LIN),
SCALE LOG LIN
,
AMPTD UNITS dBm
adjust A14R34 LIN for a DMM reading of 1000 mV ±1 mV.
Synthesizer Level
Reference from step 8
Reference − 10 dB
Reference − 20 dB
Reference − 30 dB
Reference − 40 dB
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
More 1 of 2
Table 2-9.
Reference
Level (dBm)
−50
−60
−70
−80
−90
Making Adjustments
7. Log and Linear Amplifier
DMM Reading
1000 mV ±1 mV
1000 mV ±5 mV
1000 mV ±5 mV
1000 mV ±5 mV
1000 mV ±30 mV
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