
5-16
ET User’s Guide
Optimizing Measurements
Reducing Mismatch Errors
Reducing Mismatch Errors in a Transmission
Measurement
The best way to reduce mismatch errors in a transmission measurement
of a two-port device is to perform an enhanced response calibration
directly at the point that will connect to the DUT, using the exact
frequency parameters that you will be using for the measurement. To
minimize load match errors, it is recommended that you use a high
quality attenuator on the output of the DUT, as shown in
.
See
for more information on calibration choices for
transmission measurements.
NOTE
Using an attenuator on the output of the DUT will reduce the system
dynamic range.
Reducing Mismatch Errors when Measuring
Both Reflection and Transmission
When you want to measure reflection and transmission simultaneously,
or without changing the test setup, perform both a reflection calibration
and an enhanced response calibration using the exact frequency
parameters that you will be using for the measurement. It is
recommended that you put a 6 to 10 dB pad directly on the output of the
DUT.
NOTE
Using an attenuator on the output of the DUT will reduce the system
dynamic range.
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 ...