Keysight N2790A Differential Voltage Probe User Guide
25
Performance Verification Procedures
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 50:1 attenuation.
5 Set the volts/division on channel 1 of the oscilloscope to 1V/div and
seconds/division to 20 ns/div. Set the trace to the center of the
oscilloscope. Input impedance should be set to 1 M
Ω
. Disable average
mode.
6 Set the calibrator to sine wave, 5V peak-to-peak amplitude. Set the
frequency to 100 MHz, 50
Ω
load.
7 Record the measured Vpp on the scope and divide it by 50. Write down
the peak-to-peak amplitude measured by the oscilloscope. It should
be greater than or equal to 71 mV + scope error.
8 Disable the generator output and disconnect the probe input.
Performance Verification Test Record
The recommended test interval is 1 year.
Table 8
N2790A Performance Test Record
Certification Details
Serial Number:
Tested By:
Certification Date:
Recommended Date of Next Certification:
Certification Temperature:
Test
Probe Setting
Test Limits
Test Results
Gain
50:1
196 mV to 204 mV
Gain
500:1
196 mV to 204 mV
Bandwidth
50:1
≥
71 mV