
6-10
ET User’s Guide
Calibrating for Increased Measurement Accuracy
Calibration Choices
Retrieving Previous User-Defined
Calibrations
User-defined calibrations that you have already performed are available
for you to use again. In some cases, you can retrieve these calibrations
rather than perform new ones. Previous user-defined calibrations can be
retrieved as long as the following two conditions are met: 1) current
instrument settings are compatible with the calibration, and 2) you have
not cancelled the user-defined calibration by manually selecting a default
calibration of the same type. (Example: a user-defined one-port reflection
calibration is cancelled by manually selecting
.)
Widening the frequency span after retrieving a user-defined calibration
will invalidate it, and the analyzer will automatically restore the default
calibration of the same type. The user-defined calibration will
automatically be retrieved again when you narrow the instrument’s
frequency span to be compatible with that of the calibration.
Note that after you have retrieved a calibration, a "C" appears in the
upper right hand corner of the display. This "C" indicates that a
user-defined cal is in use. If you change to a narrower span, note that the
"C" changes to "C?", indicating the analyzer is now interpolating between
calibrated measurement points. The "C?" notation also appears when
other system parameters, such as power, number of points, or sweep
time, have changed.
Current user-defined calibrations are always available in nonvolatile
(battery-backed) memory. Subsequent calibrations of the same type will
cancel the previous calibration unless it is saved using
.
See
“Saving and Recalling the Calibration” on page 6-26
instrument’s power is cycled, the current instrument state and
calibration will be retrieved.
Presetting the Analyzer: How Calibration Is
Affected
When the instrument is preset, the current user-defined calibration will
be retained if the instrument’s preset settings match those of the
calibration. If settings do not match, a default calibration will be
automatically restored. The user-defined calibration will automatically
be retrieved when you adjust the instrument settings to be compatible
with those of the calibration.
Default 1-Port
SAVE RECALL
Содержание HP 8712ET
Страница 8: ...viii ET User s Guide ...
Страница 17: ...ET User s Guide 1 1 1 Installing the Analyzer ...
Страница 34: ...1 18 ET User s Guide Installing the Analyzer Preventive Maintenance ...
Страница 35: ...ET User s Guide 2 1 2 Getting Started ...
Страница 52: ...2 18 ET User s Guide Getting Started Performing the Operator s Check ...
Страница 53: ...ET User s Guide 3 1 3 Making Measurements ...
Страница 58: ...3 6 ET User s Guide Making Measurements Measuring Devices with Your Network Analyzer Figure 3 3 Block Diagram ...
Страница 118: ...3 66 ET User s Guide Making Measurements Measuring Impedance Magnitude ...
Страница 119: ...ET User s Guide 4 1 4 Using Instrument Functions ...
Страница 129: ...ET User s Guide 4 11 Using Instrument Functions Using Markers Figure 4 6 6 dB Bandwidth Marker Search ...
Страница 131: ...ET User s Guide 4 13 Using Instrument Functions Using Markers Figure 4 7 6 dB Notch Marker Search ...
Страница 134: ...4 16 ET User s Guide Using Instrument Functions Using Markers Figure 4 10 Multi Peak Search Mode ...
Страница 135: ...ET User s Guide 4 17 Using Instrument Functions Using Markers Figure 4 11 Multi Notch Search Mode ...
Страница 137: ...ET User s Guide 4 19 Using Instrument Functions Using Markers Figure 4 12 Marker Statistics Function ...
Страница 139: ...ET User s Guide 4 21 Using Instrument Functions Using Markers Figure 4 13 Marker Flatness Function ...
Страница 141: ...ET User s Guide 4 23 Using Instrument Functions Using Markers Figure 4 14 RF Filter Statistics Function ...
Страница 143: ...ET User s Guide 4 25 Using Instrument Functions Using Markers Figure 4 15 Delta Marker Mode ...
Страница 149: ...ET User s Guide 4 31 Using Instrument Functions Using Limit Testing Figure 4 16 Limit Lines ...
Страница 167: ...ET User s Guide 4 49 Using Instrument Functions Customizing the Display Figure 4 22 The Display Annotation ...
Страница 171: ...ET User s Guide 4 53 Using Instrument Functions Customizing the Display Figure 4 23 Normal Display ...
Страница 172: ...4 54 ET User s Guide Using Instrument Functions Customizing the Display Figure 4 24 Expanded Display ...
Страница 207: ...ET User s Guide 5 1 5 Optimizing Measurements ...
Страница 226: ...5 20 ET User s Guide Optimizing Measurements Measuring Devices with Long Electrical Delay ...
Страница 227: ...ET User s Guide 6 1 6 Calibrating for Increased Measurement Accuracy ...
Страница 235: ...ET User s Guide 6 9 Calibrating for Increased Measurement Accuracy Calibration Choices Figure 6 4 Calibration Choices ...
Страница 266: ...6 40 ET User s Guide Calibrating for Increased Measurement Accuracy Checking the Calibration ...
Страница 267: ...ET User s Guide 7 1 7 Front Rear Panel ...
Страница 269: ...ET User s Guide 7 3 Front Rear Panel Connectors Connectors Figure 7 1 Analyzer Connectors Front Panel ...
Страница 289: ...ET User s Guide 7 23 Front Rear Panel Line Module Figure 7 12 Power Cable and Line Mains Plug Part Numbers ...
Страница 292: ...7 26 ET User s Guide Front Rear Panel Line Module ...
Страница 293: ...ET User s Guide 8 1 8 Hardkey Softkey Reference ...
Страница 395: ...ET User s Guide 9 1 9 Specifications ...
Страница 397: ...ET User s Guide 9 3 Specifications System Performance ...
Страница 443: ...ET User s Guide 10 1 10 Safety and Regulatory Information ...
Страница 449: ...ET User s Guide 10 7 Safety and Regulatory Information Regulatory Information ...
Страница 450: ...10 8 ET User s Guide Safety and Regulatory Information Regulatory Information ...
Страница 451: ...ET User s Guide 11 1 11 Factory Preset State and Memory Allocation ...