Vvm Calibration; Zeroing - Keysight N9923A User Manual

VVM (Vector Voltmeter) Mode - Option 308
VVM Mode Settings
This setting can be changed at any time without affecting calibration accuracy.
How to set Single or Continuous
— Press Meas Setup 4
— Then choose one of the following:
— You can also use Run / Hold +/- to toggle between Single and Continuous.

VVM Calibration

Calibration of a VVM Mode measurement can be accomplished using one of
several methods depending on the desired level of accuracy. Learn more in
"How to Perform a Calibration" on page
— The simplest method is to use CalReady which is accurate at the test port
— The next simplest method is to perform a Zeroing.
— When using jumper cables or adapters to connect the DUT to the FieldFox,

Zeroing

Zeroing, also known as Normalization, or Data/Memory, simply "Zeroes" the
Magnitude and Phase display when
measurements are relative to the measurement that was made when Zero was
pressed.
When an instrument state is saved with Zero ON, the zeroing data is saved with
the state file, similar to how a calibration is saved with a state file.
— When performing a 1-Port Cable Trimming operation, a reference cable is
— For 2-port measurements, Zero is typically pressed when a THRU
Keysight N9923-90001 User's Guide
Single
— Automatically sets Continuous OFF and causes the FieldFox to
make ONE measurement, then hold for the next Single key press. The
Hold annotation changes to an arrow --> while the measurement
occurs.
Continuous ON
—
setting when battery power is not critical.
connectors. CalReady does not correct for the loss or delay of jumper
cables or adapters that may be used to connect the DUT to the FieldFox.
Learn more about CalReady in
the most accurate method is to perform a QuickCal or Mechanical Cal.
"Calibration Method Summary" on page
Learn more in
before calibrating (sets Zero to OFF).
connected and measured. Then Zero is pressed, and subsequent cables are
measured and trimmed to match electrical length of the reference cable.
connection is made in place of a DUT. Learn more in
Measurements" on page
Makes continuous measurements. This is the typical
104.
"CalReady" on page
Zero
is pressed. All subsequent
171.
104.
123. Press Zero OFF
"2-Port Transmission
167