Vvm Calibration; Measurement Selection; Frequency Selection; Vvm Mode Settings - Agilent Technologies FieldFox N9912A User Manual

VVM Calibration

In VVM Mode, calibration is performed in the same manner as in CAT and NA
Modes. In summary, a Preset Cal is sufficient when the DUT is connected
directly to the FieldFox RF Out test port. When using an adapter or jumper cable
to connect the DUT, first perform a QuickCal + Load or OSL Cal before making
measurements. Learn more about these FieldFox calibrations on page 50.
To make an accurate measurement, set

VVM Mode Settings

Select VVM Mode before making any setting in this section.
NOTE In VVM Mode, the power level out of the internal FieldFox source is always
approximately +5 dBm and can NOT be changed.
How to select VVM Mode
 Press Mode
 Then

Measurement Selection

How to select a VVM Measurement
 Press Measure 1
 Then choose from the following:

Frequency Selection

VVM measurements are made at a single CW frequency.
How to set Frequency
 Press Freq/Dist
 Then
 Enter a value using the numeric keypad, the ▲|▼ arrows, or the rotary knob.
 After using the ▲|▼ arrows or the rotary knob, press Enter. The increment
 After using the keypad, select a multiplier key. Learn about multiplier
VVM (Vector Voltmeter) Mode
VVM
1-Port Cable Trimming
o
this measurement on page 118.
2-Port Transmission
o
Learn how to make this measurement on page 119.
Frequency
setting of the arrows is based on the current span and can NOT be changed in
VVM Mode.
abbreviations on page 18.
Zero OFF
1-port reflection measurement. Learn how to make
2-port transmission MAGNITUDE ONLY measurement.
before calibrating.
115