240
Chapter 9
Performance Verification Tests
12. Absolute Amplitude Accuracy
12. Absolute Amplitude Accuracy
Absolute Amplitude Accuracy
The level of a 50 MHz signal is measured with a power meter. A
complete auto alignment is performed. The 50 MHz signal is then
measured with the spectrum analyzer. The difference between the
power meter and spectrum analyzer readings is calculated.
For analyzers with 75
Ω
inputs, the minimum adapter’s insertion loss is
characterized using two power sensors and a power splitter. The
measured insertion loss is then used to correct the difference between
the power meter and spectrum analyzer readings.
Equipment Required
Synthesized signal generator
Measuring receiver
Power sensor, low power
Cable, Type-N, 152-cm (60-in)
Adapter, Type-N (f) to Type-N (f)
Additional Equipment for 75
Ω
Input
Power sensor, 100 kHz to 1500 MHz, 75
Ω
Adapter, mechanical, Type-N (f), 75
Ω
to Type-N (m) 50
Ω
Pad, minimum loss
Adapter, Type-N (f), to BNC (m), 75
Ω
Procedure: Absolute Amplitude Accuracy
Measurement
1. On the synthesized signal generator set the controls as follows:
CW
,
50 MHz
AMPLITUDE
,
−
27 dBm
(50
Ω
Input only)
AMPLITUDE
,
−
18 dBm
(75
Ω
Input only)
RF ON
AM OFF
FM OFF
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 ...