How do I retreive data and frequencies from VNA 8510C?

[nvn]

How do I retreive data and frequencies from VNA 8510C using inst driver dl?

[thehobbs]

Are you referring to the LabVIEW Plug and Play instrument driver at:
http://zone.ni.com/idnet97.nsf/9b2b33e1993d877786256436006ec498/24ca7db880ab78ae862568ab005fbc0f?OpenDocument

If so, you can use the Getting Started example VI to take certain measurements. You can modify this example as needed with other instrument driver VIs to match your specific needs.

Jason Hobbs

[nvn]

Thanks for your reply Jason. I tried to use the Output Frequency List vi to retreive the frequences from the 8510C. I got the "number of points" shown correctly, but the "current frequency list" show 0.00+0.00i. When I scrolled through the "number of point" the frequence doesn't change. I wonder why the frequency represents in complex number.

Thanks

[thehobbs]

It appears that you are not actually measuring any signal. This could be because you do not have a signal connected or becuase the instrument was not configured properly. Try running the Getting Started Example VI to make sure that the instrument is set up with appropriate configuration parameters. This VI calls the Application Example VI, which then calls the Output Raw Data VI. The Getting Started Example returns raw data in its real and imaginary components. You can use these components to calculate the magnitude and phase of your signal.

Jason