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4-4
Performance Tests
1. Test Port Output Frequency Range and Accuracy
Figure 4-1. Test Port Output Frequency Range and Accuracy Test Setup
2
Press
PRESET
,
MENU
,
CW FREQ
.
3
Press
30
,
k/m
and write the frequency counter reading on the “Performance
Test Record.”
4
Repeat Step 3 for each instrument frequency listed in the “Performance Test
Record.”
In Case of
Difficulty
1
If any measured frequency is close to the specification limits, check the time
base accuracy of the counter used.
2
If the analyzer fails by a significant margin at
all
frequencies (especially if the
deviation increases with frequency), the master time base probably needs
adjustment. In this case, refer to the
Agilent 8753D Service Guide
. The
“Fractional-N Frequency Range Adjustment” also affects frequency accuracy.