Mechanical Cal - Keysight A Series User Manual

Calibration for NA, CAT, and VVM Modes
Optionally Connect Load(s)
— Connect a Load standard at the point where the DUT will be connected and
— Press
Connect THRU (Not used for 1-port cals)
— Connect port 1 to port 2, either by mating the connectors that attach to the
— Press Finish.
CAL ON Q
corrected with QuickCal.
Using QuickCal with a Long Jumper Cable
QuickCal requires a sufficient frequency span to adequately characterize the
jumper cable (the cable between the instrument port and the DUT). If a 'Cal
Failed' error appears and you connected the optional Load standard, then
increase the frequency span of the measurement until the error no longer
appears. After the calibration, you can then decrease the frequency span as
needed and rely on interpolation. Learn more about Interpolation in
"Interpolation *" on page
QuickCal is also limited in how much jumper cable loss it can tolerate. If
QuickCal without the Load is failing, then measure the Load during the
QuickCal to see if that resolves the issue.

Mechanical Cal

Mechanical Calibration is performed using discrete standards from a Cal Kit.
Several Cal Kit definitions are built into the FieldFox. To learn about Cal Kit
definitions, refer to the Application Note, "Specifying Calibration Standards
Keysight N9927-90020 User's Guide
press Measure under the following conditions:
— When a jumper cable has too much loss. If a 'Cal Failed' error
appears and you skipped the Load measurement, then perform the
Cal again but include measuring the Load.
— When your DUT has high return loss such as the reject band of a
filter. Then measuring the load improves accuracy. Even with the
optional Load, phase accuracy begins to degrade when the return
loss is greater than about 20dB.
Skip Step in all other cases and when making DTF measurements.
Measuring a load would do little to improve accuracy.
DUT (Flush THRU), or by using a short jumper cable. Learn more about
Flush THRU in "Calibration Type" on page
is shown on the screen for all displayed measurements that are
149. Then press Measure.
155.
141