
ET User’s Guide
6-19
Calibrating for Increased Measurement Accuracy
Calibration Kits
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 Characteristics
of the Calibration
Standards
Determine the characteristics of the calibration standards you plan to
use. In particular, these are the characteristic impedance (Z
0
), the delay,
and the loss. These characteristics are common for the four supported
standard types used by the analyzer. Additionally, the capacitive model
parameters, C
0
, C
1
, C
2
, and C
3
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.
About Calibration Standards.
A calibration standard is a
specific, well-defined, physical device used to determine systematic
errors. Each standard has a precisely known or predictable magnitude
and phase response as a function of frequency. The response of each
standard is mathematically defined in the error models used by the
network analyzer.
A standard type is one of four basic types that define the form or
structure of the model to be used with that standard (i.e., short, open,
load, and through).
Standard characteristics are the numerical, physical characteristics of
the standards used in the model selected.
Typical calibration standards are throughs, opens, shorts, and loads. All
of these standards offer the advantage of broadband frequency coverage.
They are used singly or in combination, depending on the type of cal.
Open
defines the standard type of an open circuit.
Short
defines the standard type of a short circuit.
Load
defines the standard type of a load.
Through
defines the standard type as a transmission line of
specified length. The through has zero length when the
two test ports can be connected directly together.
Summary of Contents for HP 8712ET
Page 8: ...viii ET User s Guide ...
Page 17: ...ET User s Guide 1 1 1 Installing the Analyzer ...
Page 34: ...1 18 ET User s Guide Installing the Analyzer Preventive Maintenance ...
Page 35: ...ET User s Guide 2 1 2 Getting Started ...
Page 52: ...2 18 ET User s Guide Getting Started Performing the Operator s Check ...
Page 53: ...ET User s Guide 3 1 3 Making Measurements ...
Page 118: ...3 66 ET User s Guide Making Measurements Measuring Impedance Magnitude ...
Page 119: ...ET User s Guide 4 1 4 Using Instrument Functions ...
Page 143: ...ET User s Guide 4 25 Using Instrument Functions Using Markers Figure 4 15 Delta Marker Mode ...
Page 149: ...ET User s Guide 4 31 Using Instrument Functions Using Limit Testing Figure 4 16 Limit Lines ...
Page 207: ...ET User s Guide 5 1 5 Optimizing Measurements ...
Page 226: ...5 20 ET User s Guide Optimizing Measurements Measuring Devices with Long Electrical Delay ...
Page 227: ...ET User s Guide 6 1 6 Calibrating for Increased Measurement Accuracy ...
Page 266: ...6 40 ET User s Guide Calibrating for Increased Measurement Accuracy Checking the Calibration ...
Page 267: ...ET User s Guide 7 1 7 Front Rear Panel ...
Page 292: ...7 26 ET User s Guide Front Rear Panel Line Module ...
Page 293: ...ET User s Guide 8 1 8 Hardkey Softkey Reference ...
Page 395: ...ET User s Guide 9 1 9 Specifications ...
Page 397: ...ET User s Guide 9 3 Specifications System Performance ...
Page 443: ...ET User s Guide 10 1 10 Safety and Regulatory Information ...
Page 449: ...ET User s Guide 10 7 Safety and Regulatory Information Regulatory Information ...
Page 450: ...10 8 ET User s Guide Safety and Regulatory Information Regulatory Information ...
Page 451: ...ET User s Guide 11 1 11 Factory Preset State and Memory Allocation ...