Agilent Technologies 54621D, 54624A, 54622D, 54622A manual To verify horizontal ∆t and 1/∆t accuracy

Testing Performance

To verify horizontal Dt and 1/Dt accuracy

To verify horizontal ∆t and 1/∆t accuracy

This test verifies the horizontal ∆t and 1/∆t accuracy. In this test, you will use the oscilloscope to measure the output of a time mark generator.

	Test limits: ±0.01% of reading ±0.1% of full scale ±40 ps (same channel)
Table 3-8
	Equipment Required to Verify Horizontal ∆t and 1/∆t Accuracy
	Equipment	Critical Specifications	Recommended Model/Part
	Oscilloscope Calibrator	Stability 5 ppm after 1/2 hour	Fluke 5820A
	Cable	BNC, 3 feet	Agilent 10503A
	Feedthrough	50Ω, BNC connectors (m) and (f)	Agilent 11048C

1Connect the oscilloscope calibrator to channel 1 using the 50 Ω

feedthrough at the oscilloscope input. Then, select Marker and set the calibrator for 100 ∝s markers.

2Set up the oscilloscope.

a Press the Display key, then set the Vectors softkey to off.

b Press the Autoscale key.

c Set the time base to 20 ∝s/div.

d Press the Main/Delayed key, then set the Time Ref softkey to Left. e Adjust the Trigger Level knob to obtain a stable display.

3Press the Quick Meas softkey, set the Source softkey to 1, then select and measure Frequency and Period. Measure the following:

Frequency 10 kHz — The test limits are 9.98 kHz to 10.02 kHz. Period 100 ∝s — The test limits are 99.79 ∝s to 100.2 ∝s.

If the measurements are not within the test limits, see the “Troubleshooting” chapter. Then return here.

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