Check delta time measurement accuracy ≥4 GHz models.
Equipment Required Prerequisites
One 50 Ω, precision coaxial cable (Item 4)
One sine-wave generator (Item 9)
One adapter (Item 19)
(See Prerequisites on page 116.)
This procedure checks the Delta Time Measurement Accuracy as listed in
Specifications.
Figure 30: Delta time accuracy test hookup, ≥4 GHz models
1. Install the test hookup and preset the instrument controls:
a. Initialize the instrument: Press the Default Setup button.
b. Hook up the sine-wave generator:
■
Connect the sine-wave output of the sine-wave generator through a
50 Ω precision coaxial cable to Ch 1 through an adapter.
■
Power on the generator.
■
Set the sine-wave generator to output a sine wave of the frequency
shown in the table. (See Table 17: Delta time measurement settings,
≥4 GHz models on page 250.)
■
Set the generator output for 80 mV. (This amplitude will be adjusted
later to get an 8-division pulse on screen.)
■
Set the Vertical Scale to 10 mV per division.
c. Modify the initialized front-panel control settings:
■
Readjust the Trigger Level knob so the trigger level is at 50% of the
rising edge of the sine wave.
■
From the button bar, touch the Horiz/Acq button. Select the Manual
button to turn on Manual Mode.
■
Select the Acquisition tab. Press the IT button to turn on Interpolate
Time Only.
■
From the button bar, touch the Vertical button.
Performance verification (MSO/DPO70000C, MSO/DPO70000DX, and DPO7000C series)
MSO70000C/DX, DPO70000C/DX, DPO7000C, MSO5000/B, DPO5000/B Series 249
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