S parameters

[AL9000]

Hello!

I am using  LabVIEW to get the S-parameter from a N5242A PNA. For what concerns S11, it works just fine; however I am not able to get other S-parameters that I need (S22 and S33) at the same time as S11 from channels 2 and 3. The command I used for S11 is:

CALC: PAR: SEL CH1_S11_1

I also tried to change the second part of the command in the most intuitive way so to make it work for S22 measured on Channel 2 pf the PNA....unfortunately it doesn't work.

Could anyone help please?

Thanks in advance!

[Dennis_Knutson]

Does your 'most intuitive way' match the syntax in the manual?

[AL9000]

if it did I wouldn't be here asking...

[Dennis_Knutson]

Then you need to match the syntax in the manual. I don't see where using incorrect syntax is a LabVIEW problem. Keysight should be able to tell you what command to use.

[AL9000]

The problem is that I can't find it...I am going to try to contact them but I hoped someone here already did a code to plot all the S-parameters

[Stuart.Parkinson]

http://na.support.keysight.com/pna/help/latest/help.htm

[ben64]

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@AL9000 wrote:

I also tried to change the second part of the command in the most intuitive way so to make it work for S22 measured on Channel 2 pf the PNA....unfortunately it doesn't work.

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And what most intuitive way command did you use?

Ben64

[AL9000]

For S22 I found CH1_S22_2 and it works; but I still can't find the related command for S33, so I tried with CH1_S33_3 doesn't accept it...

[ben64]

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@AL9000 wrote:

For S22 I found CH1_S22_2 and it works; but I still can't find the related command for S33, so I tried with CH1_S33_3 doesn't accept it...

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It make sense for S11 and S22 because these 2 ports uses the same channel. Since you have a 3 ports device the other output will be connected to a third VNA port so the S33 measurement will be on a different channel. Try CH2_S33_1 (Channel_Measurement_TraceNumber), if it doesn't work it is up to you to verify how the measurement and the display was configured so you can call a valid command.

Ben64