Performance Verification
P6330 3.5 GHz Differential Probe Instruction Manual 39
Probe Calibration Fixture
Someoftheproceduresinthismanualusea probecalibration
fixture, Tektronix part number 067-0419-00.
The calibration fixture provides a means to test the probe for both
commonmodeanddifferentialmodemeasurements.SMA
connectorsallow stimulus signals to connect to the fixture a nda re
located on the front and back of the fixture. The fixture is designed
to be used with a probe positioner, such as a TektronixPPM203B.
Figure 16: Probe Calibration Fixture
Using the Probe Calibration Fixture
1. Connectthefixturetothe test circuit using an SMAcable.
2. Connect the 50 Ωterminatorincludedwiththefixturetothe
unusedSMAconnector.
3. Insert and secure the probe in a probe positioner.
4. Positionthe probeoverthefixture,usingeitherthepositioner
coarse adjustment or otherwise manipulating the positioner arm
inplace.