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3 Frequency Compensation
Proper compensation of the probe is required to assure amplitude
accuracy of the waveform being measured by matching the probe to
the oscilloscope’s input capacitance. Compensation should be adjusted
whenever the probe is connected to, or transferred between, oscilloscopes.
The procedure is the same as for a x10 passive probe.
z
Connect the probe to the oscilloscope.
z
Connect probe tip to square-wave generator.
z
Adjust the square wave generator for 10 V amplitude.
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Adjust the oscilloscope for a time base of 500 µs/div.
z
Turn trimmer (Figure 1) to adjust the compensation on the probe
making a flat pulse top.
Figure 1: Trimmer on BNC
Frequency Compensation Trimmer
