Agilent Technologies 8935 Series, Руководство пользователя

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198 Chapter 8
Performance Tests
AF Generator DC Level Accuracy Performance Test 9
AF Generator DC Level Accuracy
Performance Test 9
The purpose of this test is to verify that the Test Set meets the
specification limits in PTR (Performance Test Record)
Table 9-9, “AF
Generator DC Level Accuracy Test 9 Record,” on page 258 . There are
two DC generators. DC level accuracy is measured directly with a
digital multi meter.
Figure 8-14 Setup
Procedure
1. Set the multimeter to measure DC volts.
2. On the Test Set:
a. Press
Preset
.
b. Select the RF GENERATOR screen.
c. Set the
AFGen1 To
and
AFGen2 To
fields to Audio Out.
d. Set the
AFGen1 Freq
and
AFGen2 Freq
fields to 0.0 Hz.
e. Set the
Audio Out
field to
DC
.
3. On the Test Set for Audio Frequency Generator 1 do the following:
a. Set the
AFGen2 To
level field to Off.
b. Set the audio frequency and level as shown in the Performance
Test Record (PTR) and measure the DC level. Compare the
measured voltage to the limits.
4. On the Test Set for Audio Frequency Generator 2 do the following:
a. Set the
AFGen1 To
level field to Off and
AFGen2 To
level field to
on.
b. Set the audio frequency and level as shown in the PTR and
measure the DC level. Compare the measured voltage to the
limits.
INPUT
AUDIO OUT
Multimeter