
ES User’s Guide
6-3
Calibrating for Increased Measurement Accuracy
Measurement Calibration Overview
Measurement Calibration Overview
Measurement calibration is a process that improves measurement
accuracy by using error correction arrays to compensate for systematic
measurement errors. Measurement calibration is also called cal,
accuracy enhancement, and error correction. Measurement errors are
classified as random, drift, and systematic errors. Random errors, such
as noise and connector repeatability, are non-repeatable and not
correctable by measurement calibration. Drift errors, such as frequency
and temperature drift, occur after a calibration has been performed and
can only be removed by doing another calibration.
Systematic errors, such as tracking and mismatch, are the most
significant errors in most RF measurements. Fortunately, systematic
errors are repeatable and for the most part correctable, though small
residual errors may remain. In brief, systematic errors are correctable.
Repeatable systematic errors are due to the frequency response of the
receivers, leakage between the signal paths, and signal reflections due to
mismatch in the test setup.
Figure 6-1
Systematic Measurement Errors
Summary of Contents for HP 8712ES
Page 8: ...viii ES User s Guide ...
Page 17: ...ES User s Guide 1 1 1 Installing the Analyzer ...
Page 34: ...1 18 ES User s Guide Installing the Analyzer Preventive Maintenance ...
Page 35: ...ES User s Guide 2 1 2 Getting Started ...
Page 52: ...2 18 ES User s Guide Getting Started Performing the Operator s Check ...
Page 53: ...ES User s Guide 3 1 3 Making Measurements ...
Page 135: ...ES User s Guide 4 1 4 Using Instrument Functions ...
Page 159: ...ES User s Guide 4 25 Using Instrument Functions Using Markers Figure 4 15 Delta Marker Mode ...
Page 165: ...ES User s Guide 4 31 Using Instrument Functions Using Limit Testing Figure 4 16 Limit Lines ...
Page 224: ...4 90 ES User s Guide Using Instrument Functions Using an External VGA Monitor ...
Page 225: ...ES User s Guide 5 1 5 Optimizing Measurements ...
Page 246: ...5 22 ES User s Guide Optimizing Measurements Measuring Devices with Long Electrical Delay ...
Page 247: ...ES User s Guide 6 1 6 Calibrating for Increased Measurement Accuracy ...
Page 281: ...ES User s Guide 7 1 7 Front Rear Panel ...
Page 306: ...7 26 ES User s Guide Front Rear Panel Line Module ...
Page 307: ...ES User s Guide 8 1 8 Hardkey Softkey Reference ...
Page 410: ...8 104 ES User s Guide Hardkey Softkey Reference Z ...
Page 411: ...ES User s Guide 9 1 9 Specifications ...
Page 469: ...ES User s Guide 10 1 10 Safety and Regulatory Information ...
Page 475: ...ES User s Guide 10 7 Safety and Regulatory Information Regulatory Information ...
Page 476: ...10 8 ES User s Guide Safety and Regulatory Information Regulatory Information ...
Page 477: ...ES User s Guide 11 1 11 Factory Preset State and Memory Allocation ...