204
Chapter 9
Performance Verification Tests
5. Residual FM
5. Residual FM
This test measures the inherent short-term instability of the analyzer
LO system. With the analyzer in zero span, a stable signal is applied to
the input and slope-detected on the linear portion of the IF bandwidth
filter skirt. Any instability in the LO transfers to the IF signal in the
mixing process. The test determines the slope of the IF filter in Hz/dB
and then measures the signal amplitude variation caused by the
residual FM. Multiplying these two values yields the residual FM in
Hz.
There are no related adjustment procedures for this performance test.
Equipment Required
Synthesized signal generator
Cable, Type-N, 152-cm (60-in)
Additional Equipment for 75
Ω
Input
Pad, minimum loss
Adapter, Type-N (f), to BNC (m), 75
Ω
Figure 9-4
Residual FM Test Setup
CAUTION
Use only 75
Ω
cables, connectors, or adapters on instruments with 75
Ω
connectors, or damage to the connectors will occur.
Содержание ESA-L1500A
Страница 12: ...11 1 Preparing for Use and Printing ...
Страница 28: ...27 2 Getting Started ...
Страница 44: ...Chapter 2 43 Getting Started Making a Measurement Figure 2 5 Reading the Amplitude and Frequency ...
Страница 47: ...46 Chapter2 Getting Started Analyzer Battery Information ...
Страница 48: ...47 3 Troubleshooting ...
Страница 54: ...Chapter 3 53 Troubleshooting How to Return Your Analyzer for Service Figure 3 1 ...
Страница 117: ...116 Chapter4 Front Panel Key Reference Trig ...
Страница 118: ...117 5 Menu Maps ...
Страница 119: ...118 Chapter5 Menu Maps ...
Страница 120: ...Chapter 5 119 Menu Maps ...
Страница 121: ...120 Chapter5 Menu Maps ...
Страница 122: ...Chapter 5 121 Menu Maps ...
Страница 124: ...Chapter 5 123 Menu Maps ...
Страница 125: ...124 Chapter5 Menu Maps ...
Страница 127: ...126 Chapter5 Menu Maps a Frequency is replaced with Time when the X Axis Units Freq Time selection is Time ...
Страница 128: ...Chapter 5 127 Menu Maps ...
Страница 129: ...128 Chapter5 Menu Maps ...
Страница 130: ...Chapter 5 129 Menu Maps ...
Страница 131: ...130 Chapter5 Menu Maps ...
Страница 135: ...134 Chapter5 Menu Maps ...
Страница 136: ...135 6 Options and Accessories ...
Страница 145: ...144 Chapter6 Options and Accessories Accessories ...
Страница 146: ...145 7 Specifications ...
Страница 179: ...178 Chapter7 Specifications Regulatory Information ...
Страница 180: ...179 8 Required Equipment ...
Страница 187: ...186 Chapter8 Required Equipment Test Equipment ...
Страница 308: ...307 10 Performance Verification Test Record ...
Страница 321: ...320 Chapter10 Performance Verification Test Record HP ESA L1500A Performance Verification Test Record ...