Keysight Technologies InfiniiMax III Series, User Manual

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5. Performance Verification
Bandwidth Performance Verification
NOTE You only need to perform the Bandwidth Performance Verification test with the ZIF
tip as described above. If the probe passes with the ZIF probe head then it will pass
with the browser probe head as well. You are not required to test the bandwidth
specification with both probe heads. If you have the choice between using the ZIF
probe head or the browser, Keysight suggests using the ZIF probe head because
measurements are more repeatable with it and it is easier to make a proper
connection.
To measure the performance of the N5445A Browser with the N2803A
probe amp, the same procedure as described above is used except the
browser is held in position with a probe positioner. This setup is shown in
Figure 61 using the Keysight N2787A 3D Probe Positioner.
a
Tilt the browser slightly so the two tips touch the center trace and
the ground plane on the PV fixture at about the same time.
b
Probe the halfway point between the where the pinchers are and
where the microstrip transitions into the rectangular coax line.
c
Set the span of the browser to the minimum possible as should in
this picture: