network analyzer

[yll]

I am using GPIB-USB-HS to read the s parameters from E8361A network analyzer. I downloaded the instrument driver and ran the examples "catalog measurement" and no matter which s parameter I am measuring by network analyzer, when I clicked "run" in front panel, it went back to S11 in network analyzer and the front panel shows the measurement parameter is S11. I also tried to use the example "config and read". I am able to read S11 data correctly but I could not read other s parameters (S21, S22, S12). I tried to change the measurement type from 0 (s11) to 1 (s12) but then I could not run it. There is an AGPNA error query; requested measurement not found". Can anyone help me with it?

[TV_Enable]

Hi yll,

Which version of LabVIEW and NI-VISA and NI-488.2 are you using?  If you don't have these drivers, you can download them here.  I look forward to hearing from you soon.

Regards,

Todd V.

[yll]

Hi Todd,

I use LabVIEW 8 and NI-VISA 3 I think. I figured out that the right data was measured but it just did not display on the network analyzer when I used the config and read data.vi example. I probably need to add another vi to display the trace on the network analyzer screen and I am trying to see if I can control what type of graph to plot (for example, magnitude, phase, real, imaginary, smith chart....) Thanks!