Response Cal - Agilent Technologies FieldFox N9923A User Manual

4. Calibration Type - The FieldFox always RECOMMENDS a Cal Type that will
Press
CAL ON U
corrected with the Mechanical Cal.
Response Cals
Response Cals are used to quickly calibrate the magnitude (not phase) of a
measurement using mechanical standards. Measurement accuracy is generally
low. Use a Response Cal to make quick measurements when using a jumper cable
to connect the DUT to the FieldFox. Otherwise, CalReady is usually more
accurate.
NOTE You can perform a Response Cal for either: S11, S22, or S21 AND S12.
When prompted, choose a standard based on the displayed measurements to be
calibrated. For example, to calibrate S11, connect either an OPEN or SHORT
standard to the port 1 reference plane.
Normalize uses a THRU standard or cable between port 1 and port 2 to cal an
S21 and S12 Transmission measurement (NA Mode) and a 2-port Insertion Loss
measurement (CAT Mode). In VVM Mode, this is performed using Zero.
How to perform a Response Cal
 Select the measurements to be calibrated. See the relevant Mode (NA, CAT, or
 Press Cal 5 then
 For 1-port measurements:
56
Press
Change Gender
o
Next...
Then press
o
For each port:
o
Use the ▲|▼ arrows or rotary knob to select the Cal Kit that you have,
o
and are going to use, for the specified ports.
Next...
Then press
o
quickly and accurately calibrate all of the displayed S-parameters. Change
from the RECOMMENDED Cal Type ONLY if you understand the
implications. Learn more about Cal Types on page 57.
To select a different Cal Type:
Press
Change Cal Type.
o
Then using the ▲|▼ arrows or rotary knob, select a Cal Type,
o
Then press Select and
o
Start Calibration.
Follow the Cal Wizard prompts. Connect the specified standard at the point
o
where the DUT will be connected, then press Measure.
At any time, press Back
o
properly connected.
Press Finish to complete the calibration.
o
is shown on the screen for all displayed measurements that are
VVM) for measurement selections.

Response Cal

to change the gender of the DUT connector.
to make the selections.
to make the selection.
Finish.
to Re-Measure a standard if you feel it was not
N9923A FieldFox User's Guide