Test The Jumper Cable - Keysight Technologies FieldFox B Series User Manual

Calibration for NA, CAT, and VVM Modes
Verifying Calibration and Jumper Cable Integrity
— Because all LOAD standards have delay, you should see a small amount of

Test the Jumper Cable

With the LOAD standard still connected, move the jumper cable while
observing the trace.
— If the measurement trace is relatively stable, the jumper cable is of good
— If you observe significant movement in the peaks of the measurement trace
Keysight N9938-90006 User's Guide
phase rotation as a function of frequency. In general, the measurement
result should agree with the characteristics of the calibration standard.
quality.
when moving the cable (>5 dB), the jumper cable may need to be replaced.
145