HP 8711C User Manual

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Calibrating for Increased Measurement
Accuracy
Choose an Appropriate Calibration Method
Writing or Editing Your Own Cal Kit File
There are several situations that may require you to deline your own
calibration kit delinition. Here are three examples:
l You are using a connector type (TNC or BNC for example) which is not one
of the selections under the CAL KIT menu.
l You are using a built-in connector type, but your standards (such as a short)
have different characteristics than the built-in kit uses when performing a
calibration.
0 You are using a test fixture.
The following steps (explained later in detail) should be performed when
defining your own cal kit:
1. Determine the standard characteristics for the connector type you plan to
use.
2. Create a cal kit ASCII file or edit the one provided on the Example
Programs Disk.
NOTE
Calibration kit definitions must be in DOS format. LIF format is not supported for cal kit definitions.
3. Verify performance.
Step 1: Determine the
Determine the standard characteristics for the connector type you plan to use.
Standard In particular, these are the characteristic impedance (Z,), the delay, and the
Characteristics
loss. These characteristics are common for the four supported types used by
the analyzer. Additionally, the capacitive model parameters, CO, Cl, C2, and
C3 are necessary for fully defining the open. These electrical characteristics
can be mathematically derived from the physical dimensions and material of
each calibration standard or from its actual measured response.
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HP 8711C Specifications

General

Brand	HP
Model	8711C
Category	Measuring Instruments
Language	English