Check offset accuracy ≥4 GHz ≤20 GHz models.
Equipment Required Prerequisites
One DC calibration generator (Item 6)
One SMA male-to-female BNC adapter
(Item 19)
The instrument must meet the prerequisites.
(See Prerequisites on page 116.)
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 output of a DC calibration generator to Ch 1 through an
adapter. Refer to the following figure.
Figure 18: Offset accuracy test hookup, ≥4 GHz, ≤20 GHz models
b. Initialize the instrument: Press Default Setup.
c. Modify the default settings:
■
From the tool bar, touch Horiz/Acq and select the Acquisition tab.
■
Touch Average and set the number of averages to 16.
2. Confirm input channels are within limits for offset accuracy. Do the
following substeps - test Ch 1 first, skipping substep 2.asince Ch 1 is already
selected from step 1.
a. Select an unchecked channel:
■
From the tool bar, touch Measure and then Clear All to remove the
previous measurement.
■
Press the Vertical button of the channel just confirmed to remove the
channel from the display.
Performance verification (MSO/DPO70000C, MSO/DPO70000DX, and DPO7000C series)
224 MSO70000C/DX, DPO70000C/DX, DPO7000C, MSO5000/B, DPO5000/B Series