Chapter 9
271
Performance Verification Tests
18. Displayed Average Noise Level
18. Displayed Average Noise Level
This performance test measures the displayed average noise level
within the frequency range specified. The analyzer input is terminated
in 50
Ω.
.
The test tunes the analyzer frequency across the band, uses the marker
to locate the frequency with the highest response, and then reads the
average noise in zero span.
To reduce measurement uncertainty due to input attenuator switching
and resolution bandwidth switching, a reference level offset is added.
The 50 MHz alignment signal is used as the amplitude reference for
determining the amount of offset required. The offset is removed at the
end of the test by pressing instrument preset.
The related adjustment for this procedure is “Frequency Response
Adjustment.”
Equipment Required
Termination, 50
Ω
, Type-N (m)
Additional Equipment for 75
Ω
Input
Termination, 75
Ω
Type-N (m)
Adapter, Type-N (f), to BNC (m), 75
Ω
Figure 9-21
Displayed Average Noise Level Test Setup
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 ...