Agilent Technologies 8935 Series, Руководство пользователя

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Chapter 8 201
Performance Tests
AF Analyzer AC Level Accuracy Performance Test 12
AF Analyzer AC Level Accuracy
Performance Test 12
The purpose of this test is to verify that the Test Set meets the
specification limits in PTR (Performance Test Record)
Table 9-12, “AF
Analyzer AC Voltage Accuracy Test 12 Record,” on page 262 . To
measure AC voltage accuracy, an AC signal is measured by an external
multi meter and compared to the Test Set’s internal AC voltmeter
reading.
Figure 8-17 Setup
Procedure
1. Set the digital multimeter to measure AC volts.
2. On the Test Set:
a. Press
Preset
.
b. Select the AF ANALYZER screen.
c. Set the
AF Anl In
field to Audio In.
d. Set the
Filter 2
field to
>99kHz LPF
.
e. Set the
Audio In Lo
field to
Gnd
.
f. Set the
Detector
field to
RMS
.
g. Set the
Settling
field to
Slow
.
3. Set the audio analyzer’s source to the frequencies and levels shown
in the Performance Test Record. (Adjust the level until the digital
multimeter reads the correct level.)
4. Measure the AC level on the Test Set and compare the measured
level to the limits.
OUTPUT
AUDIO IN HI
Audio Analyzer
Multimeter
INPUT