Keysight Technologies FieldFox A Series User Manual page 492

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 QuickCal or Mechanical Cal (sets Zero to
OFF).
QuickCal is only available on N991xA/2xA/3xA models.
How to select Zeroing
— Press Meas Setup 4
— Then
— Then
— Select
492
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.
495.
Keysight N9927-90001 User's Guide
"2-Port Transmission