194
Chapter 9
Performance Verification Tests
2. Resolution Bandwidth Switching Uncertainty
2. Resolution Bandwidth Switching
Uncertainty
To measure the absolute amplitude calibration uncertainty the 50 MHz
internal signal is measured after the auto alignment routine is finished.
To measure the resolution bandwidth switching uncertainty an
amplitude reference is taken with the resolution bandwidth set to
3 kHz using the marker
∆
function. The resolution bandwidth is
changed to settings between 3 MHz and 1 kHz and the amplitude
variation is measured at each setting and compared to the specification.
The span is changed as necessary to maintain approximately the same
aspect ratio.
Procedure
1. Press
Preset
on the analyzer, then wait for the preset routine to
finish. Set the analyzer controls by pressing the following keys:
System
,
50 MHz osc On Off
(On)
Frequency
,
50 MHz
Span
,
10 MHz
Peak Search
Frequency
,
Signal Track On Off
(On)
Span
,
50 kHz
Amplitude
,
Amptd Units, dBm, Done
Amplitude
,
−
20 dBm
Scale/Div
,
1 dB
BW/Avg
,
3 kHz
Video BW Auto Man
,
1 kHz
2. Press
Amplitude
and use the RPG to adjust the reference level until
the signal appears five divisions below the reference level, then press
the following keys:
Peak Search
Marker
,
Marker
∆
Frequency
,
Signal Track On Off
(On)
3. Set the analyzer resolution bandwidth and span according to
Table 9-4
.
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 ...