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P6249 4 GHz 5X Active Probe Instruction Manual
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Measurement lead length (Inches)
Frequency
(MHz)
1.2 1.4 1.6 1.8 2.2 2.4 2.6 2.8
Figure 4: Maximum frequency vs. measurement lead length
In order to reach two test points with a P6249, a 2-inch length return
ground lead is used. What is the maximum circuit frequency which
should be measured?
Using the graph shown in Figure 4 as a guide, a 2-inch lead length
yields a 500 MHz maximum frequency.
The low-inductance ground contacts described in Accessories on
page 5 can help you reduce the effects of ground lead inductance on
your measurements.