AnsweredAssumed Answered

Data based cal kit help

Question asked by astewart on Aug 16, 2011
Latest reply on Feb 26, 2016 by Dr_joel
I am trying to load a data based cal kit for SOLT standards for a PNA, model N5230A. I downloaded the “PNA Cal Kit Editor” program from Agilent to put this together before adding the cal kit to the NA. After generating the Citi files for the standards and importing them into my standard cal kit is when I start to receive errors. After starting the calibration wizard and I get to the point where I select the standard I want to cal against (open, short, etc), a dialog box appears and gives an error message of "Class assignment error".

Upon receiving this error the first time, this meant to me that I needed to confirm the cal files were loaded to the right class. I verified this under the class assignments page and have shown below what I have assigned to what, with the only notable omission is the isolation measurement and TRL, but I never intend for those to be used. After verifying this, I still receive the class assignment error message.

"

Std. No.,Label,Description,Connector,Sex,Fmin (MHz),Fmax (MHz),
1,Load1_Port1,to be used for port one of NA,Custom,NONE,100.00000, 6000.00000,
2,Load1_Port2,to be used for port two of NA,Custom,NONE,100.00000, 6000.00000,
3,Open_Port1,to be used for port one of NA,Custom,NONE,100.00000, 6000.00000,
4,Open_Port2,to be used for port one of NA,Custom,NONE,100.00000, 6000.00000,
5,Short_Port1,to be used for port one of NA,Custom,NONE,100.00000, 6000.00000,
6,Short_Port2,to be used for port one of NA,Custom,NONE,100.00000, 6000.00000,
7,Thru_S21,to be used for port one of NA,Custom,NONE,100.00000, 6000.00000,
8,Thru_S12,to be used for port one of NA,Custom,NONE,100.00000, 6000.00000,

Connector,Description,Sex,Media,Min Freq(MHz),Max Freq(MHz),Cutoff Freq(MHz),
Custom,Custom,NONE,COAX,100.000000,6000.000000,0.000000,



SOLT Class Assignments

Class Label,A,B,C,D,E,F,G,H,I,J,K,
S11A,3,
S11B,5,
S11C,1,
S22A,4,
S22B,6,
S22C,2,
FWD MATCH,1,
FWD TRAN,7,
REV MATCH,2,
REV TRAN,8,
ISOLATION,


TRL Class Assignments

Class Label,A,B,C,D,E,F,G,
TRL THRU,
TRL REFLECT,
TRL LINE,
FWD MATCH,
REV MATCH,
ISOLATION,

Calibration Reference Z0 =
LINE Z0

Testport Reference Plane =
THRU STANDARD


"


I guess there is a possibility that my citi file is incorrect. From the documentation that I have found when going with this approach, (for example: http://na.tm.agilent.com/pna/dbcal.html, and app note 1287-11) they are using a weighting field, which I have not added to my citi file. Is this really required? If so, from the url of the example, they must not be using uniform weighting (1/.0028 != 509) so what would the guidelines be for this field?

Thanks in advanced for any help  

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