
6-12
ET User’s Guide
Calibrating for Increased Measurement Accuracy
Calibration Choices
To Perform a Transmission Calibration
For a review of which systematic errors are removed by each type of
transmission calibration, see the descriptions below. These calibrations
are for measurements using the narrowband detectors.
For an example of performing a response calibration for a transmission
measurement, refer to
“Measuring Transmission Response” on
.
In general, follow these steps when performing a transmission
calibration:
1. Set up the analyzer for your measurement:
• Select
or
.
• Enter operating parameters other than the default.
2. If performing an enhanced response calibration, select a calibration
kit for the port at your calibration reference plane. Refer to
Calibration Reference Plane” on page 6-5
.
3. Press
, and then one of the following softkeys:
Restoring the default calibration recalls error correction arrays that
were calculated at the factory or during servicing, and then permanently
stored in memory. This response calibration was performed using full
band (entire frequency span) and 401 frequency points. It is quick and
convenient but not as accurate at narrow frequency spans. This
calibration is also known as the default calibration.
A response calibration prompts you to connect a through cable as the
calibration standard, and then measures it across the frequency band
you have defined, using the number of points you have defined. This
measurement is used to correct systematic frequency response errors.
MEAS 1
MEAS 2
Transmissn
CAL
Default Response
Response
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 ...