Keysight N2791A User Manual page 22

N2791A Performance Verification Procedures
9 Attach the differential probe input leads by clipping the alligator clamp to the
BNC adapter banana post.
10 Set the probe to 100:1. Set the Fluke calibrator to 10 V and 1 KHz standard
amplitude output (channel 1, square wave, 1 MΩ load).
11 Enable the output of the calibrator.
12 Record the DC amplitude of the square wave and divide 100 into just the
amplitude of the oscilloscope. Verify that the probe gain accuracy is +/-2% +
scope gain accuracy.
13 Set the calibrator to 1 V output and set the attenuation button on the probe to
10:1.
14 Record the DC amplitude of the square wave and divide 10 into just the amplitude
of the oscilloscope. Verify that the probe gain accuracy is +/-2% + scope gain
accuracy.
15 Disable the calibrator output and leave the setup connected for the next
procedure.
Bandwidth
1 Connect the 50 Ω BNC feed through adapter to the calibrator's active head
channel 1.
2 Attach the BNC (f)-to-banana post adapter to the BNC feed through adapter.
3 Attach the differential probe input leads by clipping the alligator clamp to the
BNC adapter banana post.
4 Set the probe to 10:1 attenuation.
5 Set the volts/division on channel 1 of the oscilloscope to 50 mV/div and seconds/
division to 50 ns/div. Set the trace to the center of the oscilloscope. Input
impedance should be set to 1 ΜΩ. Set the average mode to 16 points.
6 Set the calibrator to sine wave, 3 V peak-to-peak amplitude. Set the frequency
to 25 MHz, 50 Ω load.
7 Write down the peak-to-peak amplitude measured by the oscilloscope. It should
be greater than or equal to 210 mV - scope vertical accuracy.
8 Disable the generator output and disconnect the probe input.
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