Keysight N9938-90003 User’s Guide 97
Calibration for NA, CAT, and VVM Modes
—Press Cal 5 then Response Cal
— For 1-port measurements:
— Select either Open Response
or Short Response for the port to be
calibrated. The availability of this calibration on Port 2 may require an
option.
— Connect an OPEN or SHORT standard to the specified port and press
Measure
— For 2-port measurements:
— Select Normalization
— Connect a short, high-quality, phase stable cable between the
FieldFox port 1 and port 2 connectors, then press Measure
—Press Finish.
— Connect the DUT.
CAL ON U
is shown on the screen when a User Cal (Ex: Response Cal) is
correcting ONLY the appropriate measurement. For example, when an Open
Response Cal on Port 2 is performed, CAL ON U
is shown for an S22
measurement only.
View Cal
From the Choose Calibration screen (see “How to Perform a Calibration” on
page 89), press View Cal to see the following screen:
With a Normalization Cal, all subsequent insertion loss measurements are
made relative to the insertion loss of the cable used as the THRU standard.
For example, if you use a cable with 1 dB of loss, then after Normalization,
the display will show 0 dB of loss with this cable in place. Therefore, for
highest accuracy, when measuring the DUT also attach the cable that was
used in the normalization cal.
To Next Page
Loading...
Need help?
General
