
I
Making Measurements
Measuring AM Delay (Option
or
This example is an AM delay measurement of a frequency converter.
view the measurement trace, press
.
2. lb interpret the AM delay measurement, refer to Figure 3-18.
a. Note that the vertical axis is displaying time rather than power as
in previous example measurements. The AM delay measurement
measures the time required for power to travel through the DUT at
various frequencies. The measurement trace will be noisier as the
power level is attenuated by the DUT.
b. Since delay is proportional to the derivative of phase, flat (constant)
delay indicates linear phase. Delay measurements are typically
performed to measure the deviation from linear phase. Deviation from
linear phase (flat delay) would indicate that the DUT is distorting the
signal.
3-46
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 ...
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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 ...
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Страница 362: ...8 Front Rear Panel ...
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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 ...