Velocity Factor

How to Set Velocity Factor

Click Utilities then Continuity Check

You can also enter Dielectric Constant or Velocity Factor from the VNA Setup Hardware dialog.

Set Velocity Factor dialog box help

Velocity Factor - The numerical value related to the speed of energy through a DUT based on the DUTs dielectric material.

Some velocity factor (Vf) examples are:

  • Air Vf = 1.000

  • Surface traces Vf = 0.53146

  • Buried Traces in er ~ 4.3: Vf = 0.48795

Dielectric Constant  - (er) is used to calculate the velocity factor