Hi guys,

First off....thank you for all of the help. This forum has been one of my go to sources for information. My question/verification is: does the VNA uncertainty calculator account for mismatch between the VNA and the UUT? If I input our UUT's spec for VSWR into the S11 input in the calculator, I was under the impression it was used in the error calculation for mismatch. I see in the formula's page for the calculator that it lists ESF and ELF as two of the terms for error (source and load match). So composing an uncertainty budget, I wouldn't need to add an additional mismatch term to the total? Also in terms of disconnecting the cable from the E-Cal and applying to the UUT, that error would be accounted for in the connector repeatability term under the Stability section?

http://na.support.keysight.com/pna/help/WebHelp9_42/Specs/u_curve_equations.htm

First off....thank you for all of the help. This forum has been one of my go to sources for information. My question/verification is: does the VNA uncertainty calculator account for mismatch between the VNA and the UUT? If I input our UUT's spec for VSWR into the S11 input in the calculator, I was under the impression it was used in the error calculation for mismatch. I see in the formula's page for the calculator that it lists ESF and ELF as two of the terms for error (source and load match). So composing an uncertainty budget, I wouldn't need to add an additional mismatch term to the total? Also in terms of disconnecting the cable from the E-Cal and applying to the UUT, that error would be accounted for in the connector repeatability term under the Stability section?

http://na.support.keysight.com/pna/help/WebHelp9_42/Specs/u_curve_equations.htm

Go to the chart parameters and input the S11/S22 (it only takes a single number, we assume they are the same) to get their effect on the transmission.

For reflection, choose the reflection tab and enter in S21/S12 (again, assumes it is the same).

Enter the values in LINEAR not dB (Linear = 10^(dB/20).