Tektronix RSA2203A, RSA2208A User Manual
User Manual
RSA2203A & RSA2208A
3 GHz & 8 GHz Real-Time Spectrum Analyzers
071-1334-04
This document applies to firmware version 3.20
and above.
www.tektronix.com
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Table of Contents
Getting Started
General Safety Summary xiii...................................
Preface xv...................................................
About This Manual xv...............................................
Related Documents xvi...............................................
Conventions xvi....................................................
Product Overview 1--1.........................................
Features 1--1........................................................
Application 1--2.....................................................
Difference Between RSA2203A and RSA2208A 1--2.......................
Real-Time Analysis 1--3..............................................
Architecture 1--6....................................................
Installation 1-- 9...............................................
Unpacking to Check Contents 1--9......................................
Applying Power 1--10.................................................
Setting Up the Stand 1--13..............................................
Functional Check 1--14................................................
Powering Off the Analyzer 1--18.........................................
Restart 1--19.........................................................
Backing Up User Files 1--20............................................
About Installation of Other Applications 1--20..............................
Calibration 1--21...............................................
Cal Menu 1--22......................................................
Calibrating Gain 1--23.................................................
Calibrating Center Offset 1--24..........................................
Calibrating DC Offset (Option 05 Only) 1--25..............................
Adjusting Display Brightness 1--26.......................................
Confirming Performance 1--26..........................................
Operating Basics
Interface Maps 2--1............................................
Controls and Connectors 2--2..........................................
Display Screen 2--8..................................................
Functional Overview 2--13.......................................
Menu Keys 2--13.....................................................
Menu Operations 2--16................................................
Measurement Basics 2 --21..............................................
Setting System Parameters 2--23.........................................
Using Windows XP 2--26...............................................
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Reference
Tutorial 2--29..................................................
Preparations 2--30....................................................
Displaying Spectrum 2--34.............................................
Using Markers and Peak Search 2--41.....................................
Using Avera ging and Comparison Displays 2--46............................
Displaying a Spectrogram 2--49.........................................
Spectrum Analysis 2-- 52...............................................
Analog Modulation Analysis 2--56.......................................
Turning Off the Power 2-- 64............................................
Spectrum Analysis (S/A Mode) 3--1..............................
Measurement Screen Layout 3--2.......................................
Spectrum Analysis 3--4...............................................
Spectrogram Display 3--18.............................................
Real-Time Analysis 3--20..............................................
Zoom Function 3--24..................................................
Modulation Analysis (Demod Mode) 3--27..........................
Measurement Screen Layout 3--28.......................................
Analog Modulation Analysis 3--34.......................................
Time Analysis (Time Mode) 3--41.................................
Measurement Screen Layout 3--41.......................................
Time Variation Measurement 3--42.......................................
CCDF Measurement 3--46..............................................
Pulse Measurements 3--51..............................................
Setting Frequency and Span 3--61.................................
Frequency and Span Setting Menu 3--62...................................
Using the Channel Table 3--64..........................................
Using the Marker and Peak Search 3--65..................................
Frequency Setting Range 3--66..........................................
Vector Span 3--68.....................................................
Setting Amplitude 3--69.........................................
Amplitude Menu 3--69.................................................
Over-Voltage Input 3--73...............................................
Amplitude Correction 3--74.............................................
Setting Timing Parameters 3--83..................................
Timing Menu 3--83...................................................
Seamless Acquisition 3--87.............................................
Trigger 3--89...................................................
Trigger Menu 3--90...................................................
IF Trigger 3--96......................................................
Trigger Point Indicator 3--99............................................
FFT and RBW 3--101............................................
RBW/FFT Menu 3--102.................................................
FFT Points 3-- 105.....................................................
FFT Window 3--106....................................................
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Trace Comparison Display and Average Function 3--111...............
Trace/Avg Menu 3--112.................................................
Displaying Trace 1 and 2 3--114..........................................
Averaging the Waveform 3--115..........................................
Saving/Loading Waveform Data 3--118....................................
Trace Compression 3--118...............................................
Setting Views 3 --121.............................................
View Menu 3--121.....................................................
Basic Procedure 3--122.................................................
Spectrum View Setting 3--123............................................
Spectrogram View Setting 3--124.........................................
Time Domain View Setting 3--126........................................
CCDF View Setting 3--128..............................................
Display Line 3--129..............................................
Display Line Operation (Other than Real Time S/A) 3--130....................
Multi Display Lines (Real Time S/A Only) 3--133............................
Marker Operation and Peak Search 3--137..........................
Markers Menu 3--138...................................................
Using Markers 3--141..................................................
Peak Search 3--146.....................................................
Using the Online Help 3--149......................................
Displaying the Online Help 3--149........................................
Using a Mouse and Keyboard 3--152......................................
Selecting Input Source 3--153......................................
Input Menu 3--153.....................................................
File Operations 3-- 155............................................
File Type 3--155.......................................................
Load/Save Menu 3--156.................................................
Saving and Loading Files 3--158..........................................
Entering a File Name 3--164.............................................
Deleting a File 3-- 166..................................................
Making/Deleting a Directory 3--166.......................................
File Format 3--167...............................................
Data File Format 3--167.................................................
Trace File Format 3--175................................................
Screen Copy 3-- 179..............................................
Print Menu 3 --179.....................................................
Printing a Screen Copy 3--180............................................
Creating a File 3--181..................................................
RSA2203A & RSA2208A User Manual
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Table of Contents
Appendices
Glossary
Index
Appendix A: Specifications A--1..................................
Electrical Characteristics A--2..........................................
Physical Characteristics A--13...........................................
Environmental Characteristics A--13......................................
Appendix B: Menu Tree B--1....................................
Appendix C: Inspection and Cleaning C--1........................
Inspecting the Exterior C--1............................................
Cleaning the Exterior C--2.............................................
Lubrication C--2.....................................................
Cleaning the Interior C--2..............................................
Appendix D: Options and Accessories D--1.........................
Options D--1........................................................
Standard Accessories D--3.............................................
Optional Accessories D--3.............................................
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RSA2203A & RSA2208A User Manual
List of Figures
Table of Contents
Figure 1--1: Concept of the swept spectrum analyzer 1--3............
Figure 1--2: Sweep of resolution filter 1-- 3.........................
Figure 1--3: Concept of the real-time spectrum analyzer 1--4..........
Figure 1--4: Concurrent acquisition 1--4...........................
Figure 1--5: Frame acquisition 1--5...............................
Figure 1--6: Block diagram 1--6..................................
Figure 1--7: AC Input (rear panel) 1--10............................
Figure 1-- 8: Principal power switch (rear panel) 1--11................
Figure 1--9: Front panel power switch (ON/STANDBY switch) 1--11....
Figure 1--10: Initial screen 1--12..................................
Figure 1--11: RF INPUT connector 1--12...........................
Figure 1--12: Setting up the stand 1--13............................
Figure 1--13: Spectrum of the calibration signal (50 MHz, about
--20 dBm) 1--14.............................................
Figure 1--14: Setup d isplay 1--15..................................
Figure 1--15: Reference level setting and A/D overflow indicator 1--16...
Figure 1--16: Spectrogram display 1--17............................
Figure 1--17: Calibration menu structure 1--22......................
Figure 1--18: UNCAL display 1--23................................
Figure 1--19: Center offset 1--24...................................
Figure 1--20: DC offset 1--25......................................
Figure 1--21: System menu 1--26..................................
Figure 2--1: Front panel 2--2.....................................
Figure 2--2: Rear panel 2--4.....................................
Figure 2--3: Side pan el 2--5......................................
Figure 2--4: Connecting USB devices 2--6..........................
Figure 2--5: Operation with mouse and keyboard 2--7...............
Figure 2--6: Display screen configuration 2-- 8......................
Figure 2--7: Status displ ay 2--10...................................
Figure 2--8: Pre- and post-trigger regions 2--10......................
Figure 2--9: Key lock display 2--11................................
Figure 2--10: Setup d isplay 2--12..................................
Figure 2--11: Menu keys 2--14....................................
Figure 2--12: Example menu item display 2--16......................
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Figure 2--13: Menu item types 2--17...............................
Figure 2--14: Numeric setting menu 2--17...........................
Figure 2--15: Changing value with the knob 2--18....................
Figure 2--16: Changing value with the keypad 2--19..................
Figure 2--17: Numeric keypad 2--19...............................
Figure 2--18: Step size for the center frequency 2--20.................
Figure 2--19: Changin g the step size to the predetermined values 2--20..
Figure 2--20: Selecting the measurement mode 2--21..................
Figure 2--21: Starting/Stopping data acquisition 2--22................
Figure 2--22: Restoring default settings 2--22........................
Figure 2--23: System menu 2--23..................................
Figure 2--24: Displaying versions and options 2--24..................
Figure 2--25: Displaying the Windows XP accessory menu 2--27........
Figure 2--26: Cable connection 2--30...............................
Figure 2--27: Principal power switch (rear panel) 2--31...............
Figure 2--28: Power switch (ON/STANDBY) 2--31...................
Figure 2--29: Initial screen 2--32..................................
Figure 2--30: Frequency, span, and amplitude settings 2--34...........
Figure 2--31: Menu items for numeric value input 2--35...............
Figure 2--32: Numeric value entry keypad 2--35.....................
Figure 2--33: Center frequency of 100 MHz, span of 10 MHz 2--36......
Figure 2--34: Center frequency of 100 MHz, span of 20 kHz 2--37......
Figure 2--35: Setting amplitude 2--38..............................
Figure 2--36: Menu items for numeric value input 2--39...............
Figure 2--37: Reference level of 10 dBm 2--39.......................
Figure 2--38: Status in dicator 2--40................................
Figure 2--39: Measurement with a single marker 2--42................
Figure 2--40: Measurement with the delta marker 2--43...............
Figure 2--41: Searching for the peak 2--45..........................
Figure 2--42: Averaging a waveform 2--47..........................
Figure 2--43: Comparison display with averaged waveform 2--48.......
Figure 2-- 44: Concurrent display of spectrum and spectrogram 2--49...
Figure 2--45: Tall display of spectrum and spectrogram 2--50..........
Figure 2--46: Spectrogram view 2--51..............................
Figure 2--47: Channel power measurement 2--53.....................
Figure 2--48: Channel power measurement (Channel Bandwidth
=40kHz) 2--54.............................................
Figure 2--49: Carrier frequency measurement 2--55..................
Figure 2--50: MODE keys 2--56...................................
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Figure 2--51: AM signal measurement 2--57.........................
Figure 2--52: Analysis range settings 2--59..........................
Figure 2--53: Frame and block 2--60...............................
Figure 2--54: Changing the acquisition length 2--61..................
Figure 2--55: Single view display 2-- 62.............................
Figure 2--56: Scale settings 2--63..................................
Figure 3--1: S/A menu structure 3--1..............................
Figure 3--2: S/A measurement screen 3--2..........................
Figure 3--3: “Flex” grid style 3--3................................
Figure 3--4: Channel power measurement band power markers 3--5...
Figure 3--5: Channel power measurement 3--6......................
Figure 3--6: ACPR measurement band power markers 3--7...........
Figure 3--7: Example of ACPR measurement 3--8...................
Figure 3--8: C/N measurement band power markers 3--9.............
Figure 3--9: Example of C/N measurement 3--10.....................
Figure 3--10: OBW measurement band power marker 3-- 11...........
Figure 3--11: Example of OBW measurement 3--12...................
Figure 3--12: Carrier frequency measurement 3--13..................
Figure 3--13: EBW measurement band power markers 3--14...........
Figure 3--14: EBW measurement 3--15.............................
Figure 3--15: Setting up spurious signal measurement 3--16...........
Figure 3--16: Example of spurious signal measurement 3--17..........
Figure 3-- 17: Spectrum and spectrogram concurrent display 3--18......
Figure 3--18: View orientation 3--19...............................
Figure 3--19: Single di splay 3--19..................................
Figure 3--20: Difference between normal and real-time modes 3--20.....
Figure 3--21: Real-time mode 3--23................................
Figure 3--22: Zoom function 3--24.................................
Figure 3--23: Zoom domain settings using the Timing menu 3--25......
Figure 3--24: Zoomed area settings using the marker 3--26............
Figure 3--25: Demod menu structure 3--27..........................
Figure 3--26: Demod mode screen 3--28............................
Figure 3--27: Analysis range setting in the overview 3--29.............
Figure 3--28: MARKERS keys 3--30...............................
Figure 3-- 29: Specifying the range with the marker and the
reference cursor 3--31........................................
Figure 3--30: FFT processing range setting on the overview 3--31.......
Figure 3--31: Changing the overview 3--32..........................
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Figure 3--32: One-view display 3--33...............................
Figure 3--33: AM demod measurement 3--36........................
Figure 3--34: FM demod measurement 3--37........................
Figure 3--35: PM demod measurement 3--38........................
Figure 3--36: IQ versus time measurement 3--39.....................
Figure 3--37: Pulse spectrum measurement 3--40.....................
Figure 3--38: Time menu structure 3--41............................
Figure 3--39: IQ versus Time measurement 3--43....................
Figure 3--40: Power variance measurement 3--44....................
Figure 3--41: Frequency measurement 3--45.........................
Figure 3--42: CCDF calculation process 3--46.......................
Figure 3--43: CCDF single view 3--49..............................
Figure 3--44: CCDF multi-view 3--50..............................
Figure 3--45: Definition of pulse characteristics 3--52.................
Figure 3--46: Definition of pulse-on/off 3--52........................
Figure 3--47: Setting for View Results For... 3--56....................
Figure 3--48: Setting the View Define menu 3--57....................
Figure 3--49: Waveform display in the subview 3--60.................
Figure 3--50: Setting frequency and span 3--63......................
Figure 3--51: Setting the center frequency using MARKER ➡ 3--65.....
Figure 3-- 52: Relationship between the frequency and span settings 3--67
Figure 3--53: Vector mode and scalar mode 3--68....................
Figure 3--54: Amplitude menu structure 3--69.......................
Figure 3--55: Setting the amplitude 3--70...........................
Figure 3--56: A/D overflow in dicator 3--73..........................
Figure 3--57: The amplitude correction concept 3--74.................
Figure 3--58: Amplitude correction example 3--76....................
Figure 3--59: Amplitude correction data input 3--79..................
Figure 3--60: Amplitude offset 3--81...............................
Figure 3--61: Frequency offset 3--81...............................
Figure 3--62: Amplitude correction setup display 3--82................
Figure 3--63: Timing menu structure 3--83..........................
Figure 3--64: Timing parameters 3--85.............................
Figure 3--65: Timing parameters in the zoom mode 3--86..............
Figure 3--66: Frame cycle 3--87...................................
Figure 3--67: Seamless acquisition 3--87............................
Figure 3--68: Trigger menu structure 3--90..........................
Figure 3--69: Trigger level and slope 3--93..........................
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Figure 3--70: Trigger position 3-- 93................................
Figure 3--71: Acquiring and d isplaying data by Trigger and
Repeat modes 3 --94..........................................
Figure 3--72: Trigger level vs. Amplitude (reference level = +3 dB m) 3--96
Figure 3--73: Waveforms in time domain and in frequency domain 3--97
Figure 3--74: IF trigger detection range 3--98........................
Figure 3--75: Trigger point display 3--99............................
Figure 3--76: FFT and RBW process 3--101..........................
Figure 3--77: RBW/FFT menu tree 3--102...........................
Figure 3--78: Process flow when RBW/FFT = FFT 3--103..............
Figure 3--79: FFT overlap 3--104...................................
Figure 3-- 80: Generating spurious signals by increasing the number
of FFT points 3--105..........................................
Figure 3--81: Windowing process of time domain data 3--107...........
Figure 3--82: Comparison display of Trace 1 and 2 3--111..............
Figure 3--83: RBW/FFT menu structure 3--112.......................
Figure 3--84: Displaying an averaged waveform 3--116.................
Figure 3--85: Compared display 3--117..............................
Figure 3--86: Relationships between frame, bin, and pixel 3--119........
Figure 3--87: Compression method for displaying the waveform 3--120...
Figure 3--88: View keys 3--121.....................................
Figure 3--89: Setting the scale in spectrum view 3--123.................
Figure 3--90: Scale and format settings in sp ectrogram view 3--125......
Figure 3--91: Setting the scale in time domain view 3--127..............
Figure 3--92: Setting the scale in CCDF view 3--128...................
Figure 3--93: Display line 3--129...................................
Figure 3--94: Lines menu structure (other than Real Time S/A) 3--130....
Figure 3--95: Two horizontal lines 3--131............................
Figure 3--96: Two horizontal and two vertical lines 3--132..............
Figure 3--97: Multi display lines (Real Time S/A mode) 3--133..........
Figure 3--98: Lines menu structure (Real Time S/A) 3--134.............
Figure 3--99: Marker display 3--137................................
Figure 3--100: Markers menu structure 3--138........................
Figure 3--101: Measurement with a single marker 3--141...............
Figure 3--102: Using the delta marker to take measurements 3--142......
Figure 3--103: Measurement with the reference cursor 3--143...........
Figure 3--104: Changing the Trace 3--144............................
Figure 3--105: Interlocked markers 3--145...........................
Figure 3--106: Fun ctions of the peak search keys 3--146................
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Figure 3--107: Setting the minimum frequency jump 3--147............
Figure 3--108: Online help for the front panel key 3--150...............
Figure 3--109: Online user manual 3--151............................
Figure 3--110: Word search using the keyboard 3--152.................
Figure 3--111: Input menu tree 3--153...............................
Figure 3--112: Load/Save menu structure 3--156......................
Figure 3--113: Save to the preset file (lower right of the screen) 3--159....
Figure 3--114: Selecting the folder 3--160............................
Figure 3--115: Save to File menu 3--161..............................
Figure 3--116: Load from the preset file (lower right of the screen) 3--162.
Figure 3--117: Load from File menu 3--163...........................
Figure 3--118: Alphanumeric keypad 3--164..........................
Figure 3--119: Data file structure 3--167.............................
Figure 3--120: Adding dummy frames 3--169.........................
Figure 3--121: Data bl ock 3--171...................................
Figure 3--122: Trace file structure 3--175............................
Figure 3--123: Trace file example 3--175.............................
Figure 3--124: Data bl ock 3--177...................................
Figure 3--125: Print menu structure 3--179...........................
Figure B--1: Menu keys B--1.....................................
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RSA2203A & RSA2208A User Manual
List of Tables
Table of Contents
Table 1--1: Span and RBW 1--15..................................
Table 2--1: Key functions of the keyboard 2--7.....................
Table 2--2: Status display 2--10...................................
Table 2--3: Setup display 2--12...................................
Table 2--4: Menu key summary 2--14..............................
Table 2--5: Measurement modes 2--21.............................
Table 3--1: Measurement items in the S/A mode 3--4................
Table 3--2: Features of the real-time mode 3--21.....................
Table 3--3: Span setting range 3-- 21...............................
Table 3--4: Frequency and span setting range 3--66..................
Table 3--5: Reference level setting range 3--70.......................
Table 3--6: RF attenuation level setting 3--71.......................
Table 3--7: Mixer level setting 3--71...............................
Table 3--8: Vertical scale setting range 3--72........................
Table 3--9: How to acquire a waveform 3--91.......................
Ta ble 3--10: Characteristics and usage of FFT windows 3--106.........
Table 3--11: FFT window and bandpass filter 3--108..................
Table 3--12: Averaging method 3--113..............................
Table 3--13: Number of bins (FFT points: 1024) 3--118................
Table 3--14: Front panel keys for online help 3--151...................
Table 3--15: File save operation 3--158..............................
Table 3--16: Preset file names 3--159................................
Table 3--17: File load operation 3--162..............................
Table 3--18: Combinations of validA, P, I and Q 3--172................
Table A--1: Frequency A--2.....................................
Table A--2: Spectrum purity A--3................................
Table A--3: Noise sideband A--3..................................
Table A--4: Input A--4..........................................
Table A--5: Amplitude A --5......................................
Table A--6: Dynamic range A--5.................................
Table A--7: Spurious response A--6...............................
Table A--8: Acquisition A--7.....................................
Tab l e A--9: Sampling rate A--7..................................
RSA2203A & RSA2208A User Manual
xi
Table of Contents
Table A--10: Frame time A--8....................................
Table A--11: RBW (Resolution Bandwidth) A-- 9....................
Table A--12: Analog demodulation A--9...........................
Table A--13: Trigger A--10.......................................
Table A--14: Measurement function A--10..........................
Table A--15: Display A--10.......................................
Table A--16: Marker, trace, and display line A--11...................
Table A--17: Controller and interface A-- 11.........................
Table A--18: Power requirements A--12............................
Table A--19: Power connector A--12...............................
Table A--20: Physical characteristics A--13..........................
Table A--21: Environmental characteristics A--13....................
Table A-- 22: Certifications and compliances A--14...................
Table C--1: External inspection check list C--1.....................
Table D--1: Power cord identification D--2.........................
Table D--2: Standard accessories D--3.............................
Table D--3: Optional accessories D--3.............................
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RSA2203A & RSA2208A User Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.
Only qualified personnel should perform service procedures.
To Avoid Fire or
Personal Injury
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Connect and Disconnect Properly. Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
Ground the Product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
Symbols and Terms
RSA2203A & RSA2208A User Manual
Terms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
xiii
General Safety Summary
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
Protective Ground
(Earth) Terminal
CAUTION
Refer to Manual
xiv
RSA2203A & RSA2208A User Manual
Preface
About This Manual
This is the user manual for the RSA2203A and RSA2208A Real-Time Spectrum
Analyzers. It covers the following information:
H Describes the capabilities of the analyzer and how to install it
H Explains how to operate the analyzer: how to control acquisition of,
processing of, and input/output of information
H Shows the menu structure and lists accessories of the analyzer
This manual is composed of the following chapters:
H Getting Started describes the product overview, architecture, installation, and
calibration of the analyzer.
H Operating Basics explains the functions of the front, rear, and side panels
and menu items of the analyzer, and describes the basic menu operations.
This section also provides tutorials for beginners. It gives step-by-step
procedures for measurement using a signal generator.
H Reference explains the basic concepts of measurement processes and
application-specific operations. It also describes the front panel keys and
menus.
H Appendices provide additional information including the menu tree,
accessories, and cleaning information.
First time users should install the analyzer in Getting Started,thengoto
Operating Basics and perform the tutorials beginning on Page 2--29.
The analyzer uses Microsoft Windows XP as the operating system. This manual
does not describe common usage of Windows XP. Refer to your Windows
manuals as necessary.
RSA2203A & RSA2208A User Manual
xv
Preface
Related Documents
Conventions
In addition to this user manual, the following documentation is available for
your analyzer. Tektronix part numbers are supplied in Appendix D: Options and
Accessories.
H RSA2203A and RSA2208A Programmer Manual (standard accessory)
contains an alphabetical listing of the programming commands and other
information related to controlling the analyzer over the GPIB interface.
H RSA2203A and RSA2208A Service Manual (optional accessory)
describes how to verify the characteristics of, adjust, disassemble, assemble,
and troubleshoot the analyzer, and contains the information required for
repair, including module replacement, and calibration.
This manual uses the following conventions:
H Front-panel key and control labels are printed in the manual in upper case
text. For example, SPAN, P EAK, PRINT. If it is part of a procedure, the key
or control label is printed in boldface. For example:
Press SPAN.
H To identify keys on the front panel, the area name label precedes the key.
For example:
Press the MODE: DEMOD key.
H Me nu and on-screen form titles are printed in the manual in the same case
(initial capitals) as they appear on the analyz er screen, such as Span, Source,
and Channel Power. If it is part of a procedure, the menu title is shown in
boldface. For example:
Press the Source side key.
H A series of keys, controls, and/or menu items separated by an arrow symbol
(→) indicates the order in which to perform the listed tasks. For example:
Select RBW/FFT → Filter Shape...→ Gaussian.
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RSA2203A & RSA2208A User Manual
Getting Started
Product Overview
The RSA2203A and RSA2208A are portable real-time spectrum analyzers with
RF measurement capability up to 3 GHz (RSA2203A) and 8 GHz (RSA2208A).
The real-time spectrum analyzer has a vastly different architecture from
traditional tools, and is uniquely capable of capturing continuous, intermittent, or
random signals with equal ease. The waveform and measurement results of data
acquired seamlessly can be displayed in various formats such as frequency
versus amplitude, time versus amplitude/frequency/phase, AM/FM/PM
demodulation, and spectrogram containing three dimensional information of
frequency, time, and amplitude/phase.
Features
H Measurement frequency range
H 100 Hz to 3 GHz measurement span and 10 MHz vector span
H Real-time analysis for seamless capture of time-varying RF signals
10 MHz to 3 GHz for RSA2203A; 10 MHz to 8 GHz for RSA2208A
DC to 20 MHz (Option 05)
H Spectrum analysis of power, ACPR, C/N, OBW, EBW, and spurious
H Analog modulation analysis of AM, PM, FM, ASK and FSK signals
H Time characteristic analysis including pulse measurements
H CCDF analysis
H Time-correlated simultaneous views
H Spectrum display
H Spectrogram display (frequency versus time versus power)
H Time domain display (IS-95 standard)
H Analog demodulation display:
time versus modulation factor, phase, or frequency
H 8.4 inch TFT color display and sturdy cabinet
RSA2203A & RSA2208A User Manual
1- 1
Product Overview
Application
The RSA2203A and the RSA2208A can perform real-time analysis for the
following purposes:
H Signal quality analysis of analog and digital modulation
H Understanding frequency and spectral occupancy behavior over time
H Capture and characterization of undesired, unknown, or interfering signals
H Device/system design or operational diagnostic measurement
H Getting answers to elusive EMI problems
H VCO/synthesizer design
H RFID device characterization
H Spectrum monitoring
H Radar measurements
Difference Between RSA2203A and RSA2208A
The RSA2203A and the RSA2208A have the same functions except for their
measurement frequency ranges:
RSA2203A DC to 3 GHz........
RSA2208A DC to 8 GHz........
Descriptions in this manual apply to both the RSA2203A and the RSA2208A
unless otherwise noted.
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RSA2203A & RSA2208A User Manual
Real-Time Analysis
Product Overview
This section explains real-time analysis with the comparison of conventional
swept spectrum analyzer and real-time spectrum analyzer.
Conventional Swept
Spectrum Analyzer
Figure 1--1 is a block diagram of the conventional swept spectrum analyzer.
There are two R F 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.
RF input
F
Mixer
Resolution
Local
oscillator
filter
Detector
Display
F
Figure 1- 1: Concept of the swept s pectrum analyzer
The filter is swept from F
start
to F
. See Figure 1--2. Only signals within the
stop
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.
F
start
Figure 1- 2: Sweep of resolution filter
RSA2203A & RSA2208A User Manual
Sweep
AB
F
stop
1- 3
Product Overview
Real-Time Spectrum
Analyzer
The real-time spectrum analyzer is conceptually equipped with a series of
bandpass filters as shown in Figure 1--3. Signals passing through those filters are
concurrently observed and recorded continuously. Signals A and B are concurrently acquired and displayed as shown in Figure 1 --4.
Resolution
filter 1
FF
RF input
Resolution
filter 2
Resolution
filter 3
Resolution
filter N
Detector 1
Detector 2
Display
Detector 3
Detector N
Figure 1- 3: Concept of the real-time spectrum analyzer
Concurrent acquisition
AB
F
start
Figure 1- 4: Concurrent acquisition
F
stop
1- 4
RSA2203A & RSA2208A User Manual
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