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Performance Veri
fi
cation
Check Analog Bandwidth
This test checks the bandwidth at 50
Ω
for each channel.
1.
Connect the output of the leveled sine wave generator (for example, Fluke
9500) to the oscilloscope channel 1 input as shown in the following
illustration.
WARNING.
The generator is capable of providing dangerous voltages. Be sure to
set the generator to off or 0 volts before connecting, disconnecting, and/or moving
the test hookup during the performance of this procedure.
2.
Push the front-panel
Default Setup
button.
3.
Select 50
Ω
impedance as follows:
a.
Set the calibrator to 50
Ω
output impedance and to generate a sine wave.
b.
Push the front-panel channel 1 button.
c.
Set the
Termination
(input impedance) to
50
Ω
.
4.
Set the Acquisition mode to Sample as follows:
a.
Push the front-panel
Acquire
button.
b.
Push the
Mode
lower-bezel button (if not already selected).
c.
Push the
Sample
side bezel button.
5.
Set the Vertical
Scale
to
1 mV
per division.
6.
Adjust the signal source to at least 8 vertical divisions at the selected vertical
scale with a set frequency of 50 kHz. For example, at 5 mV/div, use a
≥
40 mV
p-p
signal, at 2 mV/div, use a
≥
16 mV
p-p
signal, and at 1 mV/div, use a
≥
8 mV
p-p
signal. Use a sine wave for the signal source.
7.
Set the Horizontal
Scale
to
10
μ
s
per division.
8.
Record the peak-to-peak measurement:
a.
Push the front-panel Wave Inspector
Measure
button.
b.
Use the
Multipurpose b
knob to select the
Peak-to-Peak
measurement.
66
MSO4000B and DPO4000B Series Speci
fi
cations and Performance Veri
fi
cation