
ES User’s Guide
6-17
Calibrating for Increased Measurement Accuracy
Calibration Choices
This method of calibration is only necessary when trying to achieve
maximum dynamic range (>100 dB). A response and isolation calibration
prompts you to connect loads to both ports and then to connect a through
cable. These standards are measured across the frequency band you have
defined, using the number of points you have defined. These
measurements are used to remove systematic errors caused by frequency
response and crosstalk. They do not correct for source and load match.
This method of calibration is superior to the standard response
calibration. This calibration prompts you to connect an open, a short, and
a load to port 1 (for measuring S
21
), or port 2 (for measuring S
12
) and to
connect a through cable. The analyzer measures each standard across
the frequency band you have defined, using the number of points you
have defined. The measurements of these standards are used to remove
systematic errors caused by frequency response and source match. They
do not correct for load match.
This method of calibration is the most accurate form of error correction
for measuring two-port devices since it can account for all of the major
sources of systematic error. This calibration prompts you to connect a
through standard between port 1 and port 2, and then to connect an
open, a short, and a load to port 1. Then it prompts you to connect an
open, a short, and a load to port 2. The analyzer measures each standard
across the frequency band you have defined, using the number of points
you have defined. The measurements of these standards are used to
remove systematic errors caused by frequency response, load match,
source match, and directivity. When a two-port calibration is selected,
the analyzer automatically measures all four S-parameters. To quickly
view each of the four S-parameters press
,
and then press the desired S-parameter softkeys under the
or
menu. You may need to adjust the scaling to view each of the
S-parameters.
Response & Isolation
Enhanced Response
User 2-Port
MENU
Trigger Hold
MEAS 1
MEAS 2
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 ...