Tektronix P7240, Руководство пользователя

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P7240 4 GHz 5X Active Probe User Manual
This method is very useful when making many measurements on the
same package. Using a ground plane on the package makes probing
the package easier and avoids adding unnecessary ground lead length
and distortion.
SureFoot Grounding
If you cannot use the recommended low-inductance grounding
method, you may ground the probe to the package under test using a
SureFoot adapter. Refer to Figure 8.
Figure 8: Using a SureFoot adapter for grounding
Use a SureFoot adapter at the end of a short ground lead to connect
directly to the package ground. This method is preferred over using
an adjacent circuit ground because it is the shortest ground path
possible.