230
Chapter 9
Performance Verification Tests
9. Input Attenuation Switching Uncertainty
Setup for Switching Uncertainty Measurement
1. Connect the equipment as indicated in
Figure 9-8
. The synthesized
signal generator provides the frequency reference for the analyzer.
The 10 dB fixed attenuator (or minimum loss pad for 75
Ω
input
analyzers) should be connected directly to the analyzer’s input
connector.
2. Press
Preset
on the analyzer. Press
System, Alignments, Auto Align,
Off
. Set the controls as follows:
Frequency
,
50 MHz
Span
,
100 kHz
AMPLITUDE
,
−
50 dBm
(50
Ω
Input only)
AMPLITUDE
,
−
1.2 dBmV
(75
Ω
Input only)
Attenuation
,
10 dB
Scale/Div, 2 dB/
BW/Avg
,
Resolution BW Auto Man
,
30 kHz
Video BW
,
100 Hz
3. Preset the synthesized signal generator and set the controls as
follows:
FREQUENCY
,
50 MHz
AMPLITUDE
,
+10 dBm
(50
Ω
Input only)
AMPLITUDE
,
+6 dBm
(75
Ω
Input only
)
AM OFF
FM OFF
4. Set the 1 dB step attenuator to 0 dB attenuation. Set the 10 dB step
attenuator to 50 dB. Refer to
Table 9-2
earlier in this chapter for
information on manually controlling a programmable step
attenuator with an HP 11713A attenuator / switch driver.
5. Press
Peak Search
on the analyzer.
6. Adjust the synthesized signal generator’s amplitude until the
analyzer’s marker amplitude reads
−
52 dBm
±
0.1 dB.
75
Ω
Input only: Adjust the synthesized signal generator’s amplitude
until the analyzer’s marker reads
−
3.2 dBmV
±
0.1 dB.
7. On the analyzer, press
Peak Search, Marker
,
Marker
∆
.
8. Do not adjust the synthesized signal generator’s amplitude after the
reference is established.
Summary of Contents for ESA-L1500A
Page 12: ...11 1 Preparing for Use and Printing ...
Page 28: ...27 2 Getting Started ...
Page 47: ...46 Chapter2 Getting Started Analyzer Battery Information ...
Page 48: ...47 3 Troubleshooting ...
Page 54: ...Chapter 3 53 Troubleshooting How to Return Your Analyzer for Service Figure 3 1 ...
Page 117: ...116 Chapter4 Front Panel Key Reference Trig ...
Page 118: ...117 5 Menu Maps ...
Page 119: ...118 Chapter5 Menu Maps ...
Page 120: ...Chapter 5 119 Menu Maps ...
Page 121: ...120 Chapter5 Menu Maps ...
Page 122: ...Chapter 5 121 Menu Maps ...
Page 124: ...Chapter 5 123 Menu Maps ...
Page 125: ...124 Chapter5 Menu Maps ...
Page 128: ...Chapter 5 127 Menu Maps ...
Page 129: ...128 Chapter5 Menu Maps ...
Page 130: ...Chapter 5 129 Menu Maps ...
Page 131: ...130 Chapter5 Menu Maps ...
Page 135: ...134 Chapter5 Menu Maps ...
Page 136: ...135 6 Options and Accessories ...
Page 145: ...144 Chapter6 Options and Accessories Accessories ...
Page 146: ...145 7 Specifications ...
Page 179: ...178 Chapter7 Specifications Regulatory Information ...
Page 180: ...179 8 Required Equipment ...
Page 187: ...186 Chapter8 Required Equipment Test Equipment ...
Page 308: ...307 10 Performance Verification Test Record ...