Product Overview
WCA230A & WCA280A User Manual
1- 3
Real-Time Analysis
This section explains real-time analysis with the comparison of conventional
swept spectrum analyzer and real-time spectrum analyzer.
Figure 1--1 is a block diagram of the conventional swept spectrum analyzer.
There are two RF input signals in this example. The RF signal is converted to IF
(intermediate frequency) by the swept local oscillator. IF output goes through a
bandpass filter, where resolution of the spectrum analyzer is defined.
Local
oscillator
RF input
Mixer
Resolution
filter
Detector
Display
F
F
Figure 1- 1: Concept of the swept spectrum analyzer
The filter is swept from F
start
to F
stop
. See Figure 1--2. Only signals within the
filter bandwidth are observed at one point in time. Signal A is detected first and
then signal B is detected and displayed.
NOTE
. An intermittent signal, such as a burst phenomenon, will not be detected
unless it is present at the exact moment that the filter is being swept past it.
Sweep
F
start
F
stop
A
B
Figure 1- 2: Sweep of resolution filter
Conventional Swept
Spectrum Analyzer
Summary of Contents for WCA200A
Page 6: ......
Page 8: ......
Page 29: ...Getting Started...
Page 30: ......
Page 57: ...Operating Basics...
Page 58: ......
Page 86: ...Functional Overview 2 28 WCA230A WCA280A User Manual...
Page 125: ...Reference...
Page 126: ......
Page 208: ...Modulation Analysis Demod Mode 3 82 WCA230A WCA280A User Manual...
Page 272: ...Setting Timing Parameters 3 146 WCA230A WCA280A User Manual...
Page 346: ...Display Line 3 220 WCA230A WCA280A User Manual...
Page 358: ...Marker Operation and Peak Search 3 232 WCA230A WCA280A User Manual...
Page 388: ...File Format 3 262 WCA230A WCA280A User Manual...
Page 392: ...Screen Copy 3 266 WCA230A WCA280A User Manual...
Page 393: ...Appendices...
Page 394: ......
Page 430: ...Appendix C Digital Demodulation Symbol Mapping C 4 WCA230A WCA280A User Manual...
Page 437: ...Glossary...
Page 438: ......
Page 446: ...Glossary Glossary 8 WCA230A WCA280A User Manual...
Page 447: ...Index...
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