Agilent Technologies FieldFox N9912A - Normalize

64 N9912A FieldFox User’s Guide
 If a jumper cable or adapter is required to connect the DUT to the FieldFox,
then connect those components to the FieldFox RF Out connector NOW. The
effects of those components will be measured and removed during the
calibration, and only the effects of the DUT will be displayed in the
measurement results. These should be high-quality components!
 In CAT or NA Mode, press Cal 5.
 Then (if necessary) press Cal Type to choose O,S,L .
 Then (if necessary) press Connector Type.
 Then using the ▲|▼ arrows or the rotary knob, select the connector type and
gender of your DUT port to be measured and press Enter. This will determine
the type and gender of cal kit to use. For example, if a Type-N Male connector
is used on the DUT port to be measured, then the Type-N Male standards
(OPEN, SHORT, AND LOAD) will ALL be connected in place of the DUT during
the calibration.
 If there is more than one Cal Kit for the selected connector type, press Cal Kit
and select the correct Cal Kit to use.
NOTE Calibration kit definitions are unique to each connector type and connector sex.
They must be correctly applied to obtain the most accurate calibration.
 Then press Start Cal.
 Press Open, Short, and Load in any order.
 Connect the corresponding standard at the point where the DUT will be
connected, then press Measure.
 Measure each of the three standards. Standards can be measured again at any
time if you feel a standard was not connected securely.
 Press Finish to complete the O,S,L calibration.
Normalize
Normalize is used to calibrate a 2-port Insertion Loss measurement (CAT Mode)
and a S21 Transmission measurement (NA Mode). One of these measurements
must be selected before performing a Normalize Cal.
NOTE A Normalization Cal is REQUIRED to make accurate 2-port Transmission or
Insertion Loss measurements.
How to perform a Normalization
 Press Cal 5.
 Cal Type [Normalize] should appear.
 Connect a short, high-quality, phase stable cable between the FieldFox RF OUT
and RF IN connectors.
NOTE All subsequent insertion loss measurements are made relative to the insertion
loss of this cable. For example, if you use a Normalization cable with 1 dB of loss,
then after pressing Normalize, 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 Start Cal then Thru then Measure