Keysight Technologies FieldFox B Series User Manual page 592

VVM (Vector Voltmeter) Mode - Option 308
VVM Mode Settings
— For 2-port measurements, Zero is typically pressed when a THRU
Press Zero OFF before performing a Mechanical Cal (sets Zero to OFF).
How to select Zeroing
— Press Meas Setup 4
— Then
— Then
— Select
592
connection is made in place of a DUT. Learn more in
Measurements" on page
Zero Ref
— Open – select to display Phase = 0.0 Deg when zeroed.
— Short - select to display Phase = 180.0 Deg when zeroed.
Zero ON
Zero OFF to turn zeroing off.
595.
Keysight N9938-90006 User's Guide
"2-Port Transmission