Model
83522A
ADJUSTMENTS
Adjustments
5-1
9.
FREQUENCY REFERENCE 1
V/GHz
OUTPUT (Cont'd)
2. Adjust A2R6 "Band 0 Offset" to the center of its mechanical range.
3. Connect the
DVM
to the rear panel lV/GHz Frequency Reference connector, 54.
4. Press
,
then at DATA ENTRY enter 2.4 GHz.
5. Adjust A2R4 "OFFSET" for a DVM reading of 2.400 Vdc
f
2 mVdc.
6.
Press
,
then at DATA ENTRY enter 10 MHz.
7.
Adjust A2RlUGAIN" for a
DVM
reading of 10 mVdc
f
2 mVdc.
8. Repeat steps 3 through 7 until there is no change.
5-20. ALC ADJUSTMENT
NOTE
Complete adjustment of the leveling loop requires several procedures to be
performed in the order prescribed, from Paragraph
5-20
through
5-24.
Deviation from this routine may cause improper leveling and/or flatness
problems.
REFERENCE:
Performance Test:
8350A Paragraph 4-14.
Service Sheet: A4
DESCRIPTION:
Adjustments compensate for DC offsets in the detected RF path and the Main
ALC
amplifier. Power is roughly calibrated and low band flatness is optimized.
EQUIPMENT:
....................................................
Sweep Oscillator. HP 8350A
....................................................
Digital Voltmeter. HP 3455A
........................................................
Power Meter.. HP 436A
........................................................
Power Sensor HP 848111.
..................................
Swept Amplitude Analyzer.
HP
8755C/HP 182T
...........................................................
Detector. HP 1 1664A
................................................
Extender Board. HP 08350-6003 1
..................................................
10.dB Pad. HP 8491A Opt. 010
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