258
Chapter 9
Performance Verification Tests
14. Spurious Responses
12.Adjust the power level until the Mkr
∆
amplitude reads 0 dB
±
0.05 dB.
13.On the spectrum analyzer, press
Frequency
,
↓
,
↓
. This sets the center
frequency to the frequency of the lower distortion product.
14.On the spectrum analyzer, Press
BW/Avg
,
Video Average
,
20
,
Enter
.
Wait for “
Avg 20
” to appear along the left side of the display.
15.On the spectrum analyzer, press
Peak Search
and record the marker
amplitude reading in
Table 9-17
as the Lower Distortion Amplitude.
16.On the spectrum analyzer, press Frequency,
↑
,
↑
,
↑
. This sets the
center frequency to the frequency of the upper distortion product.
Press
BW/Avg
,
Video Average Off
.
17.Set the signal generator’s
FREQUENCY
to F2 as indicated in
Table 9-17
.
18.Set the synthesized sweeper’s
CW
frequency to F1 as indicated in
Table 9-17
.
19.On the spectrum analyzer, Press
BW/Avg
,
Video Average
,
20
,
Enter
.
Wait for “
Avg 20
” to appear along the left side of the display.
20.On the spectrum analyzer, press
Peak Search
and record the marker
amplitude reading in
Table 9-17
as the Upper Distortion Amplitude.
21.On the spectrum analyzer, press
BW/Avg
,
Video Average Off
,
Marker
,
Marker All Off
.
22.In
Table 9-17
, record the most positive of the Upper Distortion
Amplitude and Lower Distortion Amplitude as the Worst Distortion
Amplitude. For example, if the Upper Distortion Amplitude is
−
72 dBc, and the Lower Distortion Amplitude is
−
73 dBc, record
−
72 dBc as the Worst Distortion Amplitude.
23.If the analyzer has a 50
Ω
input, enter
−
22 dBm as the Mixer Level
in
Table 9-17
. The mixer level is the input level minus the analyzer’s
input attenuation. If the analyzer has a 75
Ω
input, enter
+26.76 dBmV as the Mixer Level in
Table 9-17
.
24.Calculate the equivalent TOI by subtracting one-half of the Worst
Distortion Amplitude (in dB) from the Mixer Level (in dBm or
dBmV). For example, if the Worst Distortion Amplitude is
−
72 dBc,
and the Mixer Level is
−
22 dBm, the TOI would be:
25.If the analyzer has a 50
Ω
input, record the calculated TOI in the
performance verification test record as indicated in TR Entry 50
Ω
in
Table 9-17
. If the analyzer has a 75
Ω
input, record the calculated
TOI in the performance verification test record as indicated in
TR Entry 75
Ω
in
Table 9-17
.
TOI
22 dBm
–
72 dB 2
⁄
–
(
)
–
22
–
dBm
36 dB
+
14 dBm
=
=
=
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 ...