Modifying Calibration Kit Standards; Definitions; Outline Of Standard Modification - Agilent Technologies 8719D User Manual

Modifying Calibration Kit Standards

Hewlett-Packard strongly recommends that you read application note 8510-5A
before attempting to view or modify standard definitions. The part number of
this application note is 5956-4352.
Although the application note is written for the HP 8510 family of network
analyzers, it also applies to the HP 8719D/20D/22D.
Numerical data for most Hewlett-Packard calibration kits is provided in the
calibration kit manuals.
The following section provides a summary of the information in the 8510-5A application note,
as well as HP 8719D/20D/22D menu-specific information. For a detailed description of the
menus and softkeys located in this section, as well as information about when user-defined
calibration kits should be used, refer to Chapter 6, "Application and Operation Concepts."
The following are definitions of terms:
A "standard" (represented by a number l-8) is a specific, well-de&red, physical device used
n
to determine systematic errors. For example, standard 1 is a short in the 3.5 mm calibration
kit.
A standard "type" is one of five basic types that dehne the form or structure of the model to
n
be used with that standard (short, open, load, delayithru, and arbitrary impedance); standard
1 is of the type short in the 3.5 mm calibration kit.
Standard "coefficients" are numerical characteristics of the standards used in the model
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selected. For example, the offset delay of the short is 32 ps in the 3.5 mm calibration kit.
A standard "class" is a grouping of one or more standards that determines which of the eight
n
standards are used at each step of the calibration. For example, standard number 2 makes up
the &A reflection class.
The following steps are used to modify or deline user kit standard models, contained in the
analyzer memory. It is not possible to alter the built-in calibration kits; all modifications will be
saved in the user kit.
1. To modify a cal kit, f&t select the predefined kit to be modified. This is not necessary for
2. Deline the standards For each standard, define which "type" of standard it is and its
electrical characteristics
3. Specify the class where the standard is to be assigned.
4. Store the modified caI kit.
Optimizing Measurement Results