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R4131DN
Instruction Manual
362 pgs10.67 Mb0
User Manual
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User Manual
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Advantest Corporation R4131DN, R4131D, R4131CN, R4131C User Manual

ADVANTEST
ADVANTEST CORPORATION
R4131 Series
Spectrum Analyzer
Operation Manuai
MANUAL NUMBER FOE-8324154N01
Applicable models
R4131C R4131CN R4131D R4131DN
(C) 1988 ADVANTEST CORPORATION
AH rig hts reserved. Printed in Japan
First printing February 17,1988
MANUAL CHANGES
ADVANTEST
ADVANTEST CORPORATION
Date
Manual No. Manual Change No. EMC-01
Parts of the Operatio n Manual was changed as follows.
Page 8-6 : Us ing ambient c on d it io ns was changed.
\.
Using ambient co nditi ons
: Less than 0°C to 50°C and 85% RH
4
Using ambient co nd ition s
: 0°C to 50 ° C and less than 85% RH
Sep 5/96
1*
No. ESIOO
Safety Summary
To ensure thorough understanding o f all functions and to ensure efficient use of this instrument, please read the manual carefully before using. Note that Advantest bears absolutely no responsibility for the result of operations caused due to incorrect or inappropriate use o f this instrum ent.
Tf the equipment is used in a manner not specified by Advantest, the protection provided by the equipment may be impaired.
• Warning Labels
Warning labels arc applied to Advantest products in locations where specific dangers exist. Pay careful attention to these labels during handling. Do not remove or tear these labels. If you have any questions regarding warning labels, please ask your nearest Advantest dealer. Our address and phone number are listed al the end of this manual.
Symbols o f those w arning labels are shown below together with ihcir meaning.
DANGER: Indicates an imminently hazardous situation which will result in death or serious
personal injury.
WARNING: Indicates a potentially hazardous situation which will result in death or serious
personal injury.
CAUTION: Indicates a potentially hazardous situation which will result in personal injury or
• Basic Precautions
Please observe the following precautions to prevent fire, bum, electric shock, and personal inju
ry-
• Use a power cable rated for the voltage in question. Be sure however to use a power cable conforming to safety standards of your nation when using a product overseas.
• W hen inserting the plug into the electrical outlet, first turn the power switch OFF and then insert the plug as far as it will go.
• W hen removing the plug from the electrical outlet, first turn the power switch OFF and then pull it out by gripping the plug. Do not pull on the power cable itself. M ake sure your hands are dry at this time.
• Before turning on the power, be sure to check that the supply voltage m atches the voltage requirem ents of the instrument.
• Connect the power cable to a power outlet that is connected to a protected ground term inal. Grounding will be defeated if you use an extension cord which does not include a protected ground terminal.
• Be sure to use fuses rated for the voltage in question.
a damage to property including the product.
• Do not use this instrument with the case open.
• Do not place anything on the product and do not apply excessive pressure to the product. Al so, do not place flow er pots or other containers containing liquid such as chemicals near this
Safety-1
Safety Summary
product.
• When the product has ventilation outlets, do not stick or drop m etal or easily flammable ob jects into the ventilation outlets.
• When using the product on a cart, fix it with belts to avoid its drop.
• W hen connecting the product to peripheral equipment, turn the power off.
• Caution Symbols Used Within this Manual
Sym bols indicating items requiring caution which arc used in this manual arc shown below to gether with their meaning.
DANGER: Indicates an item where there is a danger o f serious personal injury (death or seri
ous injury).
WARNING: Indicates an item relating to personal safety or health. CAUTION: Indicates an item relating to possible damage to the product or instrument or relat
ing to a restriction on operation.
• Safety Marks on the Product
The following safety marks can be found on A dvantest products.
&
ATTEN TION - Refer to manual.
Protcclivc ground (earth) icrminal.
DANGER - H igh voltage.
f-
CAUTION - Risk of electric shock.
• Replacing Parts with Limited Life
The following parts used in the instrum ent are main parts with limited life. Replace the parts listed below before their expected lifespan has expired to maintain the perfor mance and function of the instrument. Note that the estimated lifespan for the parts listed below may be shortened by factors such as the environm ent w here the instrument is stored or used, and how often the instrument is used. The parts inside are not user-replaceable. For a part replacement, please contact the Advantest sales office for servicing.
Safcty-2
Each product may use parts with lim ited life. For more information, refer to the section in this docum ent where the parts with limited life are described.
Main Paris with Limited Life
Part name Life
Unit pow er supply 5 years
Safety Summary
Fan motor
Electrolytic capacitor 5 years
LCD display 6 years
LCD backlight 2.5 years
Floppy disk drive 5 years
Memory backup battery
• Hard Disk Mounted Products
The operational warnings are listed below.
• Do not move, shock and vibrate the product while the power is turned on. Reading or writing data in the hard disk unit is performed with the memory disk turning at a high speed. It is a very delicate process.
• Store and operate the products under the follow ing environm ental conditions. An area with no sudden tem perature changes. An area away from shock or vibrations. An area free from moisture, dirt, or dust. An area away from magnets or an instrum ent which generates a magnetic field.
5 years
5 years
• Make back-ups o f im portant data. The data stored in the disk may becom e dam aged if the product is mishandled. The hard disc has a limited life span which depends on the operational conditions. Note that there is no guarantee for any loss o f data.
• Precautions when Disposing of this Instrument
When disposing of harmful substances, be sure dispose of them properly with abiding by the state-provided law.
Harmful substances: (1) PCB (polycarbon biphenyl)
(2) Mercury (3) Ni-Cd (nickel cadm ium) (4) Other
Items possessing cyan, organic phosphorous and hexadic chromium and items which may leak cadmium or arsenic (excluding lead in sol der).
Example: fluorescent tubes, batteries
Safeiy-3
Environmental Conditions
This instrument should be only be used in an area which satisfies the following conditions:
• An area free from corrosive gas
• An area away from direct sunlight
• A dust-free area
• An area free from vibrations
• Altitude o f up to 2000 m
Operating position
A d ear space of 10 centimeters or more
must be kept around the air vents.
Front
The instrument must be used in a hor izontal position. A cooling fan, which prevents the in ternal temperature from rising, is equipped with the instrument. The air vents on the case must be un blocked.
Figure-2 Operating Position
Storage position
Front
1 1
-----------
This instrument should be stored in a horizontal position. When placed in a vertical (upright) position for storage or transportation, ensure the instrument is stable and secure.
-Ensure the instrum ent is stable.
-Pay special attention not to fall.
Figure-3 Storage Position
• The classification of the transient over-voltage, which exists typically in the m ain pow er supply, and the pollution degree is defined by 1EC61010-1 and described below.
Impulse withstand voltage (over-voltage) category 11 defined by 1EC60364-4-443
Safely-4
Pollution Degree 2
Types of Power Cable
Replace any references to the power cable type, according to the following table, with the appropriate power cable type for your country.
Plug configuration
( D l n 0
\ e r' lo)
( D l n Q
\ E /
\ o /
(b e
Standards
PSE: Japan
Electrical A ppliance and Material Safely Law
UL: United States of America
CSA: Canada
CEE: Europe DEMKO: Denm ark NEMKO: Norway VDE: Germany KEMA; The Netherlands CEBEC: Belgium OVE: Austria F1MKO: Finland SEM KO: Sweden
Rating, color
and length
125 V at 7 A Black 2 m (6 ft)
125 V at 7 A Black 2 m (6 ft)
250 V at 6 A Gray 2 m (6 ft)
Model number
(Option number)
Straight: A 01402
Angled: A 01412
Straight: A 0 1403
(Option 95)
Angled: A 0 1413
Straight: AO 1404
(Option 96)
Angled: AO 1414
< h 4>
( § | )
r
(^Um\
J
______
/ ® ® \ \ n® @ y
SEV: Switzerland 250 V at 6 A
Gray 2 m (6 ft)
SAA: Australia, New Zealand 250 V at 6 A
Gray 2 m (6 ft)
BS: United Kingdom 250 V at 6 A
\
)
CCC:China 250 V at 10 A
Black 2 m (6 ft)
Black 2 m (6 ft)
Straight: AO 1405
(Option 97)
Angled: AO 1415
Straight: AO 1406
(Option 98)
Angled:
Straight: AO 1407
Angled: A01417
Straight: A 114009
Angled: A114109
----------
(Option 99)
(Option 94)
Safety-5
Certificate of Conformity
This is to certify, that
_____
complies with the provisions of the EMC Directive 89/336/EEC in accordance with EN50081-1 and EN50082-1 and Low Voltage Directive 73/23/EEC in accordancc with
EN61010.
Spectrum Analyzer
R4131 Series
instrument, type, designation
____ __
___
ADVANTEST Corp. ROHDE&SCHWARZ
Tokyo, Japan Engineering and Sales GmbH
Munich, Germany
4131.00
Tab le of Power Cable Options
There are six power cable options (refer to following table).
Order power cable options by M odel number.
No. ECA01
Plug configuration
Standards
JIS: Japan
Law on Electrical Appliances
UL: United States of America
CSA: Canada
CEE: DEMKO: NEMKO: VDE: KEM A: CEBEC:
OVE: FIMK O: SEM KO:
SEV: Switzerland
Europe Denmark Norway Germany The Netherlands Belgium Austria Finland Sweden
Rating, color
and length
125 V at 7 A Black 2 m (6 ft)
125 V at 7 A Black 2 m (6 ft)
250 V at 6 A Gray 2 m (6 ft)
250 V at 6 A Gray 2 m (6 ft)
Model number
(Option number)
Straight: A01402
Angled: AO 1412
Straight: A 0 1403
(Option 95)
Angled: AO 1413
Straight: A 01404
(Option 96)
Angled: AO 1414
Straight: AO 1405
(Option 97)
Angled: A01415
SAA : Australia, N ew Zealand 250 V at 6 A
Gray 2 m (6 ft)
BS: United Kingdom 250 V at 6 A
Black 2 m (6 ft)
Straight: A 0 1406
(Option 98)
Angled:
Straight: A01407
Angled: A01417
----------
(Option 99)
Cable-1*
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
Preface
PREFACE
This Instruction Manual describes the following spectrum analyzers collectively:
Spectrum analyzers: R4131C, R4131CN
R4131D, R4131DN
The R4131C, R4131CN, R4131D, R4131DN suits safety Class I of the IEC Publication 348 (safety Publication of the electronic measurement
instrument).
The description of product outline views, screen displays, etc. in this manual refers to the R4131D unless otherwise clearly indicated. All information contained in this manual that refers to the R4131 or the
equipment is common to each of the R4131C/CN/D/DN. In several parts of this manual, the term ATT. refers to "attenuator."
Preface
May 31/94
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
TABLE OF CONTENTS
Table of Contents
1 . GENERAL DESCRIPTION
1.1 How to Use this Operation Manual
1.2 Outline of Products
1.3 Before Starting the Use ...........................................1 - 4
1.3.1 Appearance Check and Accessory Check
1.3.2 Environmental Conditions for Use
1.3.3 Before turning This Analyzer
(1) Power Supply Condition .......................................1 - 5
(2) Check for Fuse (3) Check for Power Supply Cable (4) Maximum Input
2. USING R4131 FOR THE FIRST TIME .....................................2 - 1
2.1 Screen of Spectrum Analyzer ......................................2 - 2
2.2 Basic Operating Procedure ........................................2 - 3
(1) Initialization Screen ........................................2 - 3
(2) Input of Measurement Signal (3) Setting of Center Frequency
(4) Setting of Frequency Span ....................................2 - 5
(5) Setting of Reference Level ...................................2 - 6
(6) How to Use the MARKER Key ....................................2 - 8
(7) How to Improve Frequency Accuracy According to
the Correction Routine .......................................2 - 9
(8) Warm-up Time
.................................................1 - 1
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................................1 - 7
.................................................1 ~ 8
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.................................................2 - 9
1 - 2
1 - 4
1 - 5
3. DESCRIPTION OF PANEL SURFACE AND CRT DISPLAY
3.1 Description of Front Panel .......................................3 - 2
3.2 Description of Each Key (in the NORMAL mode)
3.3 Description of Each Key (in the SHIFT mode)
3.4 Description of Rear Panel ........................................3 - 7
3.5 How to Read CRT Display Indication
4. OPERATING METHOD
4.1 Initialization
4.2 Center Frequency
4.3 Function to Improve Center Frequency Accuracy (1) AFC Function (only in R4131D/DN)
(2) ZERO CALibration
(3) CF CALibration
(4) CF ADJustment
4.4 Frequency Span (1) What Is Zero Span (Displayed in the Time Axis)?
4.5 Interlocking Function (AUTO) .....................................4 - 10
4.6 Resolution Bank Width (RBW) ......................................4 - 11
4.7 Reference Level and Ordinate Axis Scale (1) Reference Level
...................................................4 - 1
...................................................4 - 2
.................................................4 - 4
.............................................4 - 6
...............................................4 - 6
................................................4 - 7
...................................................4 - 9
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......................3 - 1
....................3 - 5
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C - 1 May 31/94
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
Table of Contents
(2) Quadrature Axis Scale (dB/DIV) (3) Reference Level Step Width (COARSE/FINE) (4) Unit (UNITS) (5) Calibration of Ordinates Axis Level
4.8 RF Input Attenuator
4.9 Display Line .......................................................4 - 16
4.10 Marker Function (1) Display of Marker
(2) Erasing of Marker (3) PEAK Search
(4) MarKer Center Frequency
(5) SIGnal TRacK
(6) MARKER PAUSE
(7) Measurement of NOISE/Hz .......................................4 - 21
4.11 Video Filter Band Width (VIDEO FiLTeR)
4.12 Setting of Sweep Time ............................................4 - 23
4.13 Selection of Sweep Mode/Trigger Mode
4.14 Display Detection Mode ...........................................4 - 25
(1) SAMPLE DETection
(2) POSi PeaK DETection ...........................................4 - 25
(3) NORMAL DETection (POSI/NEGA DET)
4.15 Selection of Trace Mode ..........................................4 - 28
(1) WRITE ..........................................................4 - 28
(2) STORE ..........................................................4 - 28
(3) VIEW ...........................................................4-28
(4) WRITE and VIEW (2-screen display)
(5) MAX HOLD .......................................................4 - 31
4.16 Setting Conditions and SAVE/RECALL of Displayed Waveform
(1 ) SAVE ...........................................................4 - 34
(2) RECALL .........................................................4 - 35
4.17 Automatic Setting at Power ON ....................................4 - 36
4.18 Electric Field Intensity Measurement (dBu/m)
4.19 QP Value Measurement (Quasi-peak Value Measurement)
4.20 Normalize .........................................................4 - 42
4.21 Occupied Frequency Band Width (OBW)
Measurement (only for R4131D) ....................................4 - 47
4.22 3dB DOWN,3dB DOWN LOOP,NEXT PEAK Function (only for R4131D)
4.23 Plotter Output
..................................................4 - 14
...............................................4 - 15
..................................................4 - 17
.............................................4 - 17
.............................................4 - 17
...................................................4 - 17
..................................................4 - 19
..................................................4 - 20
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................................................4 - 49
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.....................4 - 14
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...................................4 - 18
..........................4 - 22
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.............................4 - 26
............................4 - 29
.......4-33
....................4 - 37
............4 - 39
4 - 52
5. APPLIED MEASURING METHOD
5.1 Measurement of Modulation Frequency and Index of AM Signal
5.1.1 Measurement of AM Wave When the Modulation Frequency Is Low and Modulation Index Is Large
5.1.2 Measurement of AM Wave When Modulation Frequency is High and
Modulation Index is Small .....................................5 - 7
5.2 Measurement of FM Wave ............................................5 - 10
5.2.1 Measurement of FM Wave When Modulation Frequency Is Low .... 5-10
5.2.2 Measurement of FM Wave for High Modulation Frequency
5.2.3 Measurement of Peak Deviation ( f peak) of FM Wave
5.2.4 How to Obtain Modulation Index m when FM Modulation Index m
Is Small ......................................................5 - 17
............................................5 - 1
....
..5 - 2
..............................
......
.........5 - 15
C - 2
..5 - 3
..5-13
May 31/94
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
Table of Contents
6. GPIB CONNECTION AND ITS PROGRAMMING
6.1 Outline of GPIB
6.2 Standards .........................................................6 - 4
6.2.1 GPIB Specifications ..........................................6 - 4
6.2.2 Interface Function ...........................................6 - 5
6.3 GPIB Handling Method
6.3.1 For Connection to Component Devices
6.3.2 Setting of ADDRESS S W
6.3.3 Programming ................................................. ..6 - 7
6.4 Setting of Each Function ..........................................6 - 8
6.4.1 Setting of Center Frequency (1) When the Center Frequency Is Set Using the Command
for Setting the TUNING Knob
(2) When the Value of Center Frequency is Set Dir ect ly
6.4.2 Setting of Frequency Span ....................................6 - 11
(1) When Using the Command Corresponding to the Key
on Front Panel
(2) When the Value of Frequency Span Is Set Directly
6.4.3 Setting of Reference Level ..................................
(1) When Using the Command Corresponding to the Key
on Front Panel .............................................. ..6 - 13
(2) When the Value of the Reference Level Is Set Directly
6.4.4 Setting of Marker (1) When Using the Command Corresponding to the Data Knob
(2) When the Value of Marker Frequency Is Set Directly
6.4.5 Setting of Resolution Band Width
(1) When Using the Command Corresponding to the K e y ..............6 - 16
(2) When the Resolution Band Width Is Set Directly...............6 - 17
6.4.6 Setting of VIDEO FiLTeR Band Width
(1) When Using the Command Corresponding to the K e y ..............6 - 18
(2) When the Value of VIDEO FiLTeR Band Width Is Set Directly .. 6-19
6.4.7 Setting of Sweep Time (SWEEP TIME/DIV)
(1) When Using the Command Corresponding to the K e y ..............6 - 20
(2) When the Sweep Time Is Set Directly
6.5 Output of Setting Conditions ......................................6 - 22
6.5.1 "OP" Command
6.5.2 Format of Output Data .........................................6 - 23
(1) Header .........................................................6 - 24
(2) Block Delimiter
6.5.3 Mode String
6.6 Input/Output of Trace Data ........................................6 - 30
6.6.1 Output of Trace Data ..........................................6 - 31
(1) Method to Output the Trace Data with ASCII C o d e ..............6 - 31
(2) Method to Output Data with the Binary C o d e
6.6.2 Input of Trace Data ...........................................6 - 34
(1) Method to Input the Trace Data with the ASCII C o d e
(2) Method to Input the Trace Data with the Binary Code
6.7 Service Request (1) Status Byte
(2) Output of Status Byte .........................................6 - 38
................................................6 - 2
.............................................6 - 6
.........
...............................................6 - 11
.............................................6 - 14
..................................................6 - 22
...............................................6-26
...................................................6-27
...................................................6-37
...................................................6 - 37
...............................6 - 1
.........................6 - 6
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..................................6 - 9
................................ ..
.........6-10
...........6 - 12
.......6 - 14
.......6 - 14
..........6 - 15
.............................6 - 16
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.......................
........................ ..
...................6 - 32
..........6-34
.........6-35
6 - 9
..6 - 12
6 - 18
6 - 19
6-21
C - 3
Oct 20/89
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
Table of Contents
6.8 Notes in Programming (1) Noteworthy Points in Sending a Command
(2) Noteworthy Points in Spectrum Analysis when the Frequency
Span Is Made Narrower .........................................6 - 39
(3) Noteworthy Points for the Setting of Center Frequency
When the Frequency Span Is Less Than 10 MHz ................
6.9 List of GPIB Codes ...............................................6 - 41
7. INSPECTION AND MAINTENANCE ..........................................7 - 1
7.1 Defects and Abnormal stresses ....................................7 - 2
7.2 Notes in Storing and Shipping this Equipment
8. TECHNICAL DATA OF FUNCTION AND ACCESSORIES
8.1 Technical Data of Function .......................................8 - 2
(1) Frequency Specification ......................................8 - 2
(2) Amplitude Specification ......................................8 - 3
(3) Sweep Specification ..........................................8 - 5
(4) Input Specification ..........................................8 - 5
(5) Display Unit Specification ...................................8 - 5
(6) Output Specification .........................................8 - 6
(7) General Specifications .......................................8 - 6
8.2 Accessories .......................................................8 - 7
9. FUNCTIONAL DESCRIPTION
9.1 Outline ...........................................................9 - 2
9.1.1 Basic Operations
9.1.2 R4131 Series Configuration
9.2 RF Block ..........................................................9 - 7
9.2.1 First Mixer
(1) 3.6 GHz Low-pass Filter ......................................9 - 8
(2) 4.0 GHz Band Pass Filter .....................................9 - 8
(3) First Mixer
9.2.2 Second Mixer
(1) 4.0 GHz Band Pass Filter .....................................9 - 9
(2) Second Local Oscillator ......................................9 - 9
(3) Second Mixer
9.2.3 Third and Fourth Mixers ......................................9 - 9
(1 ) 226.42 MHz Preamplifier ......................................9 - 9
(2) Third Mixer
(3) 200 MHz Crystal Oscillator ...................................9 - 10
(4) Gain Control Amplifier .......................................9 - 10
(5) 30 MHz Crystal Oscillator ....................................9 - 11
9.3 YT0_C0NT/IF Board
9.3.1 IF Filter (1) Input 3.58 MHz Band Pass Filter
(2) Gain Adjust Amplifier ........................................9 - 13
(3) Crystal Filter
(4) LC Filter
(5) Step Amplifier
....................................................9-12
....................................................9 - 15
..............................................6 - 39
.......................6 - 39
..6 - 40
.....................7 - 3
........................8 - 1
.............................................9 - 1
.............................................9 - 2
..................................9 - 5
..................................................9 - 8
..................................................9 - 8
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................................................9 - 12
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...............................................9 - 15
...............................................9 - 16
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R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
Table of Contents
9.3.2 YTO Controller and AFC ...................................... 9 - 17
(1 ) YTO Controller
(2) AFC .......................................................... 9-29
9.4 Analog Board .................................................... 9 - 21
9.4.1 Log Amplifier ............................................... 9 - 21
9.4.2 Ramp Generator .............................................. 9 - 24
(1 ) Current Source .............................................. 9 - 25
(2) Ramp Generator .............................................. 9 - 26
9.4.3 A/D Converter ............................................... 9-28
(1) X-axis A/D Converter .................................... 9 - 39
(2) Y-axis A/D Converter ........................................ 9 - 39
9.4.4 Analyzer Test
10. CALIBRATION AND ADJUSTMENTS ....................................... 10 - 1
10.1 Preparation .................................................... 10 - 2
10.2 A/D Adjustment (Analog Board) (BLR-015117) .................... 10 - 4
10.3 LOG Amplifier Adjustment (Analog Board) (BLR-015117)
10.4 IF Filter Adjustment (YTO_CONT/IF Board
10.4.1 3.58 MHz BPF Adjustment .................................... 10-8
10.4.2 Crystal Filter Adjustment .................................. 10 - 9
10.4.3 LC Filter Adjustment ....................................... 10 - 11
10.4.4 Resolution Bandwidth Level Adjustment
10.4.5 Step Amplifier Adjustment
10.5 YTO_CONT Adjustment (YTO_CONT/IF Board) (BLR-015116)
10.6 RF Block Adjustment
10.6.1 Third Local Oscillator Adjustment
10.6.2 Second Local Oscillator Adjustment
10.6.3 Fourth Local Oscillator Adjustment
10.7 Location Diagram of YTO CONT/IF Board
10.8 Location Diagram of Analog Board
.............................................. 9 - 18
............................................... 9-30
.........
.......................
.....................
.................................
.........
............................................ 10 - 19
.........................
........................
........................
.........................
..............................
10 - 6 10 - 8
10 - 12
10 - 13
10 - 15
10 - 19 10 - 19
10 - 19
10 - 20 10 - 21
1 1 . PERFORMANCE TESTING
11.1 preparation ................................................... 11 - 2
11.2 General Precautions ........................................... 11 - 3
11.3 Frequency Span Accuracy ....................................... 11 - 4
11.4 Center Frequency Readout Accuracy
11.5 Residual F M
11.6 Noise Sidebands
11.7 Resolution Bandwidth Accuracy
11.8 Resolution Bandwidth Selectivity
11.9 Resolution Bandwidth Switching Accuracy
11.10 LOG Linearity and LIN L inea rity
11.11 Reference Level Accuracy ..................................... 11 - 29
11.12 Residual Responses
11.13 Gain Compression ............................................. 11 - 32
11.14 Frequency Response ........................................... 11 - 34
11.15 Average Noise Level .......................................... 11 - 37
11.16 Sweep Time Accurac y.......................................... 11 - 39
11.17 Calibrated Output Accuracy ................................... 11 - 42
............................................... 11 - 1
............................
...................................................
............................................... 11 - 15
................................
.............................
......................
......................... 11 - 26
........................................... 11 - 31
C - 5
11 - 10 11 - 12
11 - 17 11 - 22 11 - 24
Oct 20/89
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
Table of Contents
12. MAINTENANCE DATA
12.1 preparation
12.2 Location Diagram (Top & Bottom)
12.3 Location Diagram for RF ........................................ 12 - 6
12.4 Block Diagram
12.5 Self Test ....................................................... 12 - 8
APPENDIX
A . 1 Explanation of Terminologies .................................... A - 2
A. 2 Level Conversion Table .......................................... A - 9
A.3 Parts Location and Circuit Diagrams
List of Figures ........................................................ F - 1
List of Tables ......................................................... T - 1
List of E xampl es
External View
..................................................
....................................................
............................... 12 - 4
..................................................
............................
.....
................................................. E - 1
12 - 1 12 - 2
12 - 7
A - 10
C - 6* Oct 20/89
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
LIST OF FIGURES
List of Figures
No. Title
1-1 Check for Fuse ......................................
1-2 Plug and Adaptor of Power Supply Cable 1-3 Input of Excessive Signal Level
2-1 Screen of Spectrum Analyzer 2-2 Initialization screen 2-3 Input the Calibration Signal
2-4 Setting Center Frequency to 200 MHz ................
2-5 Setting the Frequency Span to 2 MHz ................
2-6 Setting the Reference Level to -30 dB ..............
2-7 Setting the Marker to the Peak of the
Measured Signal .....................................
3-1 Description of Front Panel 3-2 Description of Each Key in the NORMAL Mode 3-3 Description of Each Key in the SHIFT Mode
3-4 Rear Panel ..........................................
3-5 Indication of CRT Display
4-1 Initial Screen ......................................
4-2 Change in Center Frequency 4-3 CF ADJ
CF ADJ (cont'd) .....................................
4-4 Making the Frequency Span Narrow and
Spectrum Expand .....................................
4-5 ZERO SPAN Mode ......................................
4-6 Change in Resolution Band Width 4-7 Change in Reference Level 4-8 Ordinates Axis Scale
4-9 Input Attenuator Displaying Position ...............
4-10 Display Line ........................................
4-11 Operation of Marker
4-12 PEAK Search .........................................
4-13 MarK eR— > Center Frequency
4-14 SIGnal TRacK ........................................
4-15 MARKER PAUSE ........................................
4-16 Setting of NOISE/Hz
4-17 VIDEO Fi L Te R........................................
4-18 Sweep Time ..........................................
4-19 SAMPLE DET (R4131) 4-20 POSI PK DET (R4131) 4-21 NORMAL DET (R41 31B/BN/D/DN) 4-22 Setting the Measured Signal to the
Center Frequency ....................................
4-23 Two-screen Display with a New WRITE Waveform
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1 1 - 7 1 - 8
2 - 2 2 - 3 2 - 4 2 - 5 2 - 6 2 - 7
2 - 8
3 - 2 3 - 5 3 - 6 3 - 7 3 - 10
4 - 3 4 - 5
4 - 7
4 - 8
4 - 9 4 - 10 4-11 4 - 12 4 - 13 4-15 4 - 16 4 - 17 4 - 18 4 - 19
4 - 20 4 - 21 4 - 21 4 - 22 4 - 23 4 - 26 4 - 26 4 - 27
4 - 29
4-30
F - 1
Sep 27/93
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
List of Figures
No.
4-24 Two-Screen Display of Secondary Harmonic Wave and
4-25 MAX HOLD 4-26 Two-screen Display of the Maximum Hold Contents
4-27 SAVE/RECALL Waveform M em o ry
4-28 SAVE Screen .........................................
4-29 RECALL Screen .......................................
4-30 Relationship between Frequency and Calibration Factor
4-31 Direct Connection between Tracking Generator
4-32 Moving the through Wa vefor m 4-33 Moving the Display Line
4-34 Normalize 4-35 Connection of Measured Cable 4-36 Cable Loss Characteristic
4-37 Reading the Characteristic of Waveform from the
4-38 Example of OBW Measurement 4-39 PLOT Function Selection Screen
5-1 AM Signal Wave ......................................
5-2 Set-up in Measurement of Modulation W a v e 5-3 Setting the Center Frequency to the Frequency of
5-4 Setting the Ordinates Axis Scale to LINEAR 5-5 Reading the Time Display of Marker 5-6 Reading the Difference from the Time Indication of
5-7 Reading the Emax ....................................
5-8 Reading the Emin ....................................
5-9 Measurement of AD Wave When Modulation Frequency is
5-10 Relationship Between the Value of (Sideband Level
5-11 Measurement of FM Wave When Modulation Frequency
5-12 Putting the Marker on the Peak of Demodulation Wave
5-13 Obtaining the Time Interval T(s) of
5-14 Measurement of FM Wave When Modulation Frequency
5-15 Reading the Modulation Frequency by Indication of
5— 16 Waveform When Afpeak is Small
________________________Title_________________________ Page
STORE Wa ve for m......................................
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and WRITE Wavef or m
in the half-wave dipole antenna
and System ..........................................
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Marker Display ......................................
the Measured Signal
the Adjacent Peak
High and Modulation Index is Small
Egg - Carrier Level Eq ) and Modulation
Index m (%) .........................................
I s Low
and Reading Its Time Indication
Demodulation Wave
Is High
the Marker ..........................................
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4 - 30
4 - 31
4 - 32
4 - 34 4 - 34
4 - 35
4 - 41
4 - 42 4 - 43 4 - 43
4 - 44 4 - 45 4-45
4 - 46 4 - 48 4-52
5 - 2 5 - 3
5 - 3 5 - 4
5 - 5
5 - 6 5 - 6 5 - 6
5 - 7
5 - 9
5 - 11
5-12
5 - 13
5 - 14
5 - 14 5 - 15
F - 2
Oct 20/89
R41 31 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
List of Figures
No.
5-17 Waveform When Afpea^ is Large ...................... 5 - 16
5-1 8 How to Obtain Modulation Index m When FM Modulation
6-1 Outline of GPIB ..................................... 6 - 3
6-2 Signal Line Termination 6-3 GPIB Connector Pins Assignment Diagram
6-4 ADDRESS Switch ...................................... 6 - 7
6-5 Correlation Between Screen Grids and Trace Data .... 6-30
6-6 GPIB Code for each Key
9-1 Block Diagram of This Equipment 9-2 RF Block 9-3 First Mixer Block Diagram
9-4 Second Mixer Block Diagram 9-5 Second Local Oscillator 9-6 Double-balanced Mixer 9-7 Gain Control Amplifier 9-8 IF Filter 9-9 Gain Adjust Amplifier
9-10 Crystal Filter ...................................... 9 - 15
9-1 1 LC Filter
9-12 Step Amplifier ...................................... 9 - 16
9-13 YTO Controller & AFC
9-14 SAMP & HOLD ......................................... 9 - 19
9-15 Flowchart for AFC ................................... 9 - 20
9-16 Log Amplifier Schematic Di ag ra m 9-17 One Stage of 10 dB Amplifier
9-18 Block Diagram ....................................... 9 - 24
9-19 Current Source Circuit
9-20 Ramp Generator ...................................... 9 - 26
9-21 A/D Converter
9-22 Analyzer Test ....................................... 9 - 30
9-23 Analyzer Test Display
________________________Title_________________________ Page
Index m Is Small .................................... 5 - 18
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6 - 4 6 - 5
6 - 43
9 - 4
9 - 8 9 - 8
9 - 9 9 - 10 9 - 10
9 - 14
9 - 17
9 - 21 9 - 22
9 - 25
9 - 31
10-1 Log Amplifier Adjustment 1 0-2 3.58 MHz BPF Adjustment 10-3 Waveform of 3.58 MHz BPF
10-4 Crystal Filter Adjustment 1 0-5 Waveform of Crystal Filter
1 0-6 LC Filter Adjustment 10-7 Step AMP Adjustment
10-8 Analyzer Test Display 10-9 Adjustment for Main Span
1 0-1 0 Location Diagram of YTO CONT/IF B o a r d ..............
10-11 Location Diagram of Analog Board
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F - 3
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10 - 6 10 - 8 10-9 10 - 9
10 - 10 10 - 11 10 - 13 10 - 15 10 - 16 10 - 20 10-21
Oct 20/89
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
List of Figures
No.
1-1 Frequency Span 4 GHz Test ...........................
1-2 Frequency Span Test Se t u p ...........................
1-3 Frequency Span 500 MHz Test 7-4 Frequency Span 200 kHz Test
1-5 Center Frequency Readout Accuracy Test Setup 1-6 Center Frequency Readout Accuracy Test
1-7 Residual FM Test S e t up ..............................
1-8 Residual FM Test 1-9 Residual FM to AM Conversion Di sp la y
1-10 Noise Sidebands Test S e tup 1-11 Noise Sidebands Measurement 1-12 Resolution Bandwidth Accuracy Test Setup
1-13 Resolution Bandwidth Accuracy T e s t
1-14 Resolution Bandwidth Selectivity Test Setup ........
1-15 Resolution Bandwidth Switching Accuracy Test Setup . 11-24 1-16 LOG/LIN Linearity Test Set u p 1-17 Reference Level Accuracy Test Setup
1-18 Gain Compression Test Setup 1-19 Frequency Response Test Setup 1-20 Frequency Response (100 kHz - 3.6 GHz) 1-21 Maximum Noise
1-22 Average Noise Level Test ............................
1-23 Sweep Time Accuracy Test S e tu p
1-24 Sweep Time Accuracy Test ..................................11 - 41
1-25 Calibrated Output Accuracy Test Setup ..............
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11 - 5 11 - 6 11 - 7 11 - 9 11-10 11-11 11 - 12 11 - 13 11 - 14
11 - 15 11 - 16 11-18 11 - 19 11 - 22
11 - 27 11-29
11 - 33 11 - 35 11 - 36 11 - 38 11 - 38 11 - 40
11-43
2-1 Location Diagram (Bottom View)
2-2 Location Diagram (Top View) .........................
2-3 Location Diagram for RF .............................
2-4 Block Diagram
A—1 IF Bandwidth
A-2 Noise Sideband
A-3 Bandwidth Selectivity ............................... A - 5
A-4 Bandwidth Switching Accuracy A-5 Reference Level
A-6 V.S.W.R............................................... A - 7
A-7 Spurious Response
A-8 Level Conversion Table .............................. A - 9
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A - 2 A - 4
A - 6 A - 6
A - 8
12 - 5 12 - 6 12 - 7
F - 4* Oct 20/89
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
LIST OF TABLES
List of Tables
No.
1-1 Major Function of R4131 .............................
1-2 R4131C/D Standard Accessories 1-3 R4131CN/DN Standard Accessories
1-4 Power Supply Conditions .............................
4-1 Initialization Condition ............................
4-2 SAVE/RECALL Enabled Panel Setting
4-3 Screen Stored in Each Trace Mode 4-4 CISPR Standards for QP Value Measurement Basic
4-5 PLOT TYPE of Each Plotter ...........................
6-1 Interface Function 6-2 Standard Bus Cables (To Be Purchased Separately) ... 6 - 6
6-3 Setting of ADDRESS Switch ...........................
6-4 List of GPIB Codes 6-5 GPIB Code Corresponding to Each Key
6-6 Direct Set GPIB Codes ...............................
6-7 Unit Display GPIB Codes .............................
6-8 Numeric Value Code in Setting Condition Input 6-9 Mode String 6-10 Status Byte
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Characteristic ......................................
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1 ~ 3 1 - 4
1 _ 4 1 - 6
4 - 2 4 - 33
4 - 34
4-39
4 - 53
6 - 5
6 - 7 6 - 41 6-42 6 - 44 6 - 44
6-45 6 - 45 6 - 45
9-1 Tune Voltage Data
10-1 Equipment and Tools Required for Calibration
and Adjustment ......................................
10-2 Maintenance Tools Required for Calibration
and Adjustment ......................................
10-3 TR20, TP21, TP22 Voltage Adjustment Values 10-4 Step Amplifier Adjustment
11-1 Equipment Required for Performance Testing
11-2 Frequency Span 500 MHz to 500 kHz Test
11-3 Tests for Frequency Spans of 200 kHz or Less
11-4 Resolution Bandwidth Test 1 MHz to 10 kHz 11-5 Resolution Bandwidth Accuracy Test 3 kHz to 1 kHz .. 11-21
11-6 Bandwidth Switching Uncertainty 11-7 LOG Linearity
11-8 Reference Level Accuracy ............................
11-9 Sweep Time Accuracy
1 2-1 Equipment and Tools Required For 12-2 Maintenance Tools Required for Troubleshooting
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10 - 2
10 - 2 10-4 10 - 14
11 - 2 11 - 8 11-9 11 - 20
11 - 25 11 - 28 11 - 30 11 - 4 0
12-2 12-3
T - 1*
May 31/94
R4131 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
LIST OF EXAMPLES
List of Examples
No.
6-1 Setting the Center Frequency to 500 MHz and
6-2 Setting the Center Frequency to 1 GHz .............. 6 - 9
6-3 Setting the Center Frequency to 1 GHz Directly
6-4 Setting the Frequency Span to 20 MHz ............... 6-11
6-5 Setting the Frequency Span to 20 MHz Directly
6-6 Setting the Reference Level to -30 d B m ............. 6-13
6-7 Setting the Reference Level to -30 dBm Directly .... 6-14
6-8 Setting the Marker Frequency to 1 GHz
6-9 Setting the Marker Frequency to 1 GHz Directly 6-10 Setting the Resolution Band Width to 10 kHz 6-11 Setting the Resolution Band Width to
6-12 Making the Resolution Band Width into the Automatic
6-13 Setting the VIDEO FiLTeR Band Width to 100 Hz 6-14 Setting VIDEO FiLTeR Band Width to 100 Hz Directly . 6-19
6-15 Setting the Sweep Time to 200 ms/DIV................ 6-20
6-16 Setting the Sweep Time to 200 ms/DIV Directly 6-17 Setting the Value of the Center Frequency and
6-18 Setting the Header to OFF and Fetching the Value of
6-19 Detecting the Value of Attenuator by Making the Mode
6-20 Output the trace data in memory with ASCII code, and
6-21 The trace data in the memory is output with the
6-22 The trace data is assumed to be provided in numeric
6-23 The trace data is assumed to be provided in the
6-24 ZERO CAL is judged to be ended by reading the
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Frequency Span to 2 MHz
10 kHz Directly ..................................... 6 - 17
Setting Mode ........................................ 6 - 17
Reference Level, and Making These Data Display by Reading It from This Equipment
Center Frequency as a Character String. Next, Setting the Header to ON and Fetching the Value of
Center Frequency as a Character String
String Output ....................................... 6 - 29
store in array variable
binary code to be stored in an array variable
array variable A(I). The data in A(I) is then input
to the VIEW screen memory of this equipment with
the ASCII code....................................... 6-34
numeric array variable A(I). The data in A(I) is then input in the VIEW screen memory of this
equipment with the binary code
status byte.......................................... 6-38
Title
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6 - 8
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6-10
6-12
6-14
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6-15 6-16
6-18
6-21
6-25
6-32
6-33
6 - 35
E - 1
Oct 20/89
R4 7 3 7 SERIES
SPECTRUM ANALYZER
INSTRUCTION MANUAL
List of Examples
No.
6-25 A command is delimited with a space (>_<) or comma (,)
6-26 The frequency span is made narrow up to 50 kHz for
6-27 When the Frequency of the 200 MHz Reference Signal
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and sent to this equipment
the 200 MHz reference signal
Is Read
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Title
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6 - 39
6 - 39
E - 2*
Oct 20/89
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