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SECTTONI
Performance Verification
1.6.3
Frequency Response (Sine)
1. Connect the function synthesizer to
a
wideband AC
DVM as shown in Figure 1-3. Turn on both instru-
ments.
2. Restore factory defaults on the Model 3930A by
pressing SHIFT PRST.
3. Program
a
lkH2 sine function of BOVp-p.
4. Set the DVM to measure AC volts with autoranging,
and verify that the voltage reading is within the lim-
its specified in Table l-4.
5.
Set the DVM to measure dB and select
a 5052
refer-
ence imoedance. Press REL to establish the oresent
6. Change the frequency setting of the synthesizer ac-
cording to Table l-4, and verify the subsequent &dB
readings.
7. Program a 1kHz sine function of 3.75Vp-p, and ver-
ify that the voltage reading is within limits. Press
REL to establish the reading as the relative dB refer-
ence. Verify the fdB readings for the remaining fre-
quencies.
8. Program
a
1kHz sine function of 3.74Vp-p, and ver-
ify the reading. Establish the present reading as the
relative dB reference. Verify the fdB readings for the
remaining frequencies.
voltage ieading as the relative dB reference.
l
Id 3930A
Model 7755
5Oi-l
Feed Through
Model 8920A Voltmeter
Function
output
Model 70512
Coaxial Cable
Figure Z-3.
Connections to Wideband AC DVM
l-5
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