Response Cal - Agilent Technologies FieldFox N9913A User Manual

4. Calibration Type - The FieldFox always RECOMMENDS a Cal Type that will
Begin Calibration
 Press
NOTE If an error appears ("Failure to compute calibration steps..."), check to ensure
that the frequency range of the Cal Kit covers the frequency range of the
measurement. You can verify the frequency range of your Cal Kit at:
www.agilent.com/find/fieldfoxsupport,
 Follow the Cal Wizard prompts. Connect the specified standard at the point
 At any time, press Back to re-measure a standard if you feel it was not
 Press
CAL ON U
corrected with the Mechanical Cal.
Response Cals
Response Cals are used to quickly calibrate the magnitude and 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:
68
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 69.
To select a different Cal Type:
Change Cal Type.
Press
o
Then using the ▲|▼ arrows or rotary knob, select a Cal Type,
o
Select and
Then press
o
Start Calibration.
where the DUT will be connected, then press Measure.
properly connected.
Finish
to complete the calibration.
is shown on the screen for all displayed measurements that are
VVM) for measurement selections.

Response Cal

Open Response
Select either
o
calibrated. Port 2 may require an option.
Finish.
Click Cal Kits.
Short Response
or for the port to be
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