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Performance verification (MSO/DPO70000C, MSO/DPO70000DX, and DPO7000C series)
188
Check DC gain accuracy >20 GHz models.
Equipment required
One DC calibration generator (Item 6)
One SMA male-to-female BNC adapter (Item
19)
One BNC "T", male to 2 females (Item 32)
WARNING. The generator is capable of outputting dangerous voltages. To avoid
injury, be sure to set the DC calibration generator to off or 0 volts before
connecting, disconnecting, and/or moving the test hookup during this procedure.
1. Install the test hookup and preset the instrument controls:
a. Hook up the test-signal source:
■
Set the output of a DC calibration generator to off or 0 volts. Set the
DC impedance of the generator to 50 Ω.
Connect the generator to Ch 1 through an adapter. Refer to the
■
following figure.
Figure 12: DC gain accuracy test hookup, >20 GHz models
b. Initialize the instrument: Press Default Setup
c. Modify the default settings:
■
From the button bar, touch Horiz/Acq and select the Acquisition
tab.
■
Set the Horizontal Scale to 1 ms/div.
■
Set the Record Length to 5000.
■
Set the Acquisition Mode to Hi Res.
■
Set the Trigger Source to Line.
MSO70000C/DX, DPO70000C/DX, DPO7000C, MSO5000/B, DPO5000/B Series
Prerequisites
The instrument must meet the prerequisites.
(See
Prerequisites
on page 116.)
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