Calibration for NA, CAT, and VVM Modes 69
o Connect an OPEN or SHORT standard to the specified port and press
Measure
For 2-port measurements:
o Select Normalization
o Connect a short, high-quality, phase stable cable between the FieldFox port 1
and port 2 connectors, then press Measure
NOTE With a Normalization Cal, all subsequent insertion loss measurements are made
relative to the insertion loss of the THRU cable. 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.
Press Finish.
Connect the DUT.
CAL ON U is shown on the screen when a Response Cal is correcting ONLY the
appropriate measurement.
View Cal
From the Choose Calibration screen (page 64), press View Cal to see the
following screen:
The top box shows the properties of the current calibration that you performed
and the displayed S-parameters that it is correcting.
The bottom box shows the S-parameters that are displayed but NOT corrected by
the current performed calibration, but rather the CalReady calibration. Learn
more about CalReady on page 63.
Calibration Type
The FieldFox simplifies the calibration process by recommending the most
accurate and efficient calibration type based on the displayed S-parameters.
However, there may be times when you may want a little more accuracy or a
little faster sweep time. The following information can help you learn about the
various calibration choices.
To Next Page
Loading...
Need help?
General
