333Keysight Handheld AnalyzersN99xxA User’s Guide19 VVM (Vector Voltmeter) Mode - Option 308VVM Mode (Option 308) measures the electrical length of cables and otherdevices. The 1-Port Cable Trimming and 2-Port Transmission measurementdisplays the electrical length in both Magnitude and Phase.Figure 19-1 Display for the 1-Port Cable Trimming measurementIn this Chapter“Overview” on page 335“Measurement Selection” on page 336“Frequency Selection” on page 336“Display Resolution” on page 336“IF Bandwidth” on page 337“Output Power” on page 337“Averaging” on page 338“Single or Continuous Measure” on page 339“VVM Calibration” on page 339“Zeroing” on page 339