Time Domain Analysis Error

[Dr. Scott Best]

I was attempting to use VNA Tools to analyze a defective coax cable, which can be seen here in VNA Tools:

When I select Conv: Time Domain, I should see a TDR plot for this cable, but the screen is blank as shown here:

The S1P file is attached, and I did not find any errors in the file, so what is preventing it from being converted into a TDR Plot?

Thanks in advance for your assistance in resolving this issue,

Scott

[Michael Wollensack METAS]

Hi,

you can show the console window using  (CTRL + F11 or Option / Console) and then you would see a warning why it cannot be shown in time domain:

WARNING ComputeTimeScale:  Maximum frequency must be a multiple of the largest frequency step.
WARNING ComputeTimeDomain:  Maximum frequency must be a multiple of the largest frequency step.

Take as well a look at appendix D Time Domain of the VNA Tools Math Reference.

Hope this helps.

Regards

Michael