Low Band Alc Power Accuracy Adjustment; Alc Calibration Constants And Default Values - Agilent Technologies 83620A Service Manual

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Table 3-8. ALC Calibration Constants and Default Values
ALC Calibration Constant Default Value
Low Band 0.01 to 2.0 GHz
#265 LVL DAC Ofs Lo Bnd
#252 LVL DAC Gain Lo Bnd
#284 ALC Det Ofs; Lo
#293 ALC Log Brkpt; Lo
High Band 2.0 to 20 GHz
#264 LVL DAC Ofs Hi Bnd
#251 LVL DAC Gain Hi Bnd
#283 ALC Det Ofs; Hi
#292 ALC Log Brkpt; Hi
1
Disregard if beyond your synthesizer's capability.

Low Band ALC Power Accuracy Adjustment

6. On the synthesizer, set:
CW 1 GHz
5 5 5
Adjust Menu Calib Menu
SERVICE
5
7. On the synthesizer, set:
First power level in able 3-9
POWER LEVEL
5
8. Select the rst calibration constant in able 3-9:
elect Cal
265 ENTER
5
9. On the synthesizer, select
the calibration constant so that the power meter and the power level
setting are the same.
10. Repeat steps 8 through 10 for each power level and calibration constant
given in able 3-9.
HP 8360
1
5
and, using the rotary knob, modify
Modify Cal
ALC Power Level Accuracy
120
20
142
140
0
20
134
131
Adjustments 3-93