
Calibrating for Increased Measurement
Accuracy
Choose an Appropriate Calibration Method
Conversion loss measurements typically utilize only a normalization
calibration. See “lb Perform a Normalization Calibration” earlier in this
chapter.
When in conversion loss measurement mode, the analyzer is using its internal
broadband detectors and pressing the (CAL) key calls up a menu for zeroing
the detectors. Zeroing the detectors helps compensate for drift due to changes
in ambient temperature. The two (CAL) selections for conversion loss mode
are:
periodically compensates for detector drift due to changes in
temperature. When
is selected, the detectors are automatically
zeroed approximately every five minutes. A pop-up message will briefly
appear on the analyzer’s display when the detectors are zeroed.
In manual zero mode, the analyzer zeros the detectors only when the
Zero
is pressed.
I
N O T E
When zeroing the detectors, the analyzer turns off the internal RF source. If you are measuring an
external source with the broadband detectors, use
the external source is
connected to the TRANSMISSION port.
6-15
Содержание 8712C
Страница 1: ...I I User s Guide HP 8712C and HP 8714C RF Network Analyzers I ...
Страница 17: ...I 1 Installing the Analyzer ...
Страница 35: ...I 2 Getting Started ...
Страница 54: ...I 3 Making Measurements ...
Страница 81: ......
Страница 119: ...4 Using Instrument Functions ...
Страница 182: ...Using Instrument Functions Customizing the Display Figure 4 24 Expanded Display 4 64 ...
Страница 223: ...5 Optimizing Measurements ...
Страница 244: ...6 Calibrating for Increased Measurement Accuracy ...
Страница 280: ...7 Automating Measurements ...
Страница 298: ......
Страница 362: ...8 Front Rear Panel ...
Страница 373: ......
Страница 381: ......
Страница 386: ... 9 w I Suftkey Reference ...
Страница 477: ...I 10 Specifications and Characteristics ...
Страница 501: ...11 Safety and Regulatory Information ...
Страница 508: ...I 12 preset State and Memory Allocation ...
Страница 527: ...Index ...
Страница 559: ...Y X 9 91 YYW m m IiH rn 9 91 Z zeroing detectors 6 15 Index 33 ...