Agilent Technologies 10400B Series User Manual page 16

Agilent 10400B Series Miniature Passive Oscilloscope Probes
Compensation adjustments
Adjusting high-frequency compensation
Do Low-Frequency Compensation First
You must do the low-frequency compensation procedure described previously
before doing this high-frequency compensation procedure.
To compensate for cable loss in your probe, you'll need the equipment listed
below.
Equipment Required
Equipment
50 Ω feedthrough
Adapter
Remove the probe cover to provide access to the two high-frequency
1
compensation adjustment resistors.
High-Frequency Adjustments
Connect a 50 Ω feedthrough to the oscilloscope BNC ac cal out.
2
Connect the BNC-to-probe tip adapter to the 50 Ω feedthrough.
3
Remove any probing aid and the barrel insulator from the probe tip.
4
Connect the probe tip to the BNC-to-probe tip adapter.
5
Connect the probe BNC to the appropriate oscilloscope channel.
6
Press Autoscale, then set the time base to 5 ns/div.
7
Set the sample mode to equivalent time, and the # of averages to 4.
8
Rotate the two high-frequency compensation resistors fully clockwise.
9
Adjust the two high-frequency compensation resistors alternately in
10
small increments until the displayed waveform has the flattest top.
16
Specification
50 Ω BNC(m) and (f)
BNC-to-probe tip
Agilent Part Number
0960-0301
5063-2143