Advantest Corporation R4131D Spectrum analyzer
Manufacturer:
Model:
R4131D
Date:
1988
Category:
Group:
Description:

Information

The R4131 covers a band-width as wide as 10 kHz to 3500 kHz and is controlled by a microcomputer. This Analyzer features easy confirmation of all measuring conditions, since its frequency span is 4 GHz to 50 kHz, resolution is 1 MHz to 1 kHz, level data resolution by a marker is 0.05 dB, tube surface dynamic range is 80 dB, and the setting conditions of the its major functions are shown on its CRT display. The panel of this equipment enables its three major functions (center frequency, frequency span, and reference level) to be independent of each other, and its layout makes for excellent operability. In addition, the resolution band, sweep time and input attenuator values are set automatically by its AUTO feature.

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User Manual
Manual type:
User Manual
Pages:
444
Size:
5.80 Mbytes (6077244 Bytes)
Language:
english
Revision:
First Printing
Manual ID:
FOE-8324154N01
Date:
Quality:
Scanned document, all readable.
Upload date:
2014 04 22
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User Manual
Manual type:
User Manual
Pages:
433
Size:
7.08 Mbytes (7427954 Bytes)
Language:
english
Revision:
Manual ID:
FOE-8324154N01
Date:
1988 02 17
Quality:
Scanned document, all readable.
Upload date:
2017 08 26
MD5:
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1977

Information

. GENERAL DESCRIPTION ... 1 - 1 1.1 How to Use this Operation Manual ... 1 - 2 1.2 Outline of Products ... 1 - 3 1.3 Before Starting the Use ... 1 - 4 1.3.1 Appearance Check and Accessory Check ... 1 - 4 1.3.2 Environmental Conditions for Use ... 1 - 5 1.3.3 Before turning This Analyzer ... 1 - 5 (1) Power Supply Condition ... 1 - 5 (2) Check for Fuse ... 1 - 6 (3) Check for Power supply Cable ... 1 - 7 (4) Maximum Input ... 1 ~ 8 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 ... 2 - 3 (3) Setting of Center Frequency ... 2 - 4 (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 ... 2 - 9 3. DESCRIPTION OF PANEL SURFACE AND CRT DISPLAY ... 3 - 1 3.1 Description of Front Panel ... 3 - 2 3.2 Description of Each Key (in the NORMAL mode) ... 3 - 5 3.3 Description of Each Key (in the SHIFT mode) ... 3 - 6 3.4 Description of Rear Panel ... 3 - 7 3.5 How to Read CRT Display Indication ... 3 - 10 4. OPERATING METHOD ... 4 - 1 4.1 Initialization ... 4-2 4.2 Center Frequency ... 4 - 4 4.3 Function to Improve Center Frequency Accuracy ... 4 - 6 (1) AFC Function (only in R4131D.DN) ... 4 - 6 (2) ZERO CALibration ... 4 - 6 (3) CF CALibration ... 4 - 6 (4) CF ADJustment ... 4 - 7 4.4 Frequency Span ... 4 - 9 (1) What Is Zero Span (Displayed in the Time Axis)? ... 4 - 9 4.5 Interlocking Function (AUTO) ... 4 - 10 4.6 Resolution Bank Width (RBW) ... 4 - 11 4.7 Reference Level and Ordinate Axis Scale ... 4 - 12 (1) Reference Level ... 4 - 12 (2) Quadrature Axis Scale (dB/DIV) ... 4 - 12 (3) Reference Level Step Width (COARSE/FINE) ... 4 - 14 (4) Unit (UNITS) ... 4 - 14 (5) Calibration of Ordinates Axis Level ... 4 - 14 4.8 RF Input Attenuator ... 4 - 15 4.9 Display Line ... 4 - 16 4.10 Marker Function ... 4 - 17 (1) Display of Marker ... 4 - 17 (2) Erasing of Marker ... 4 - 17 (3) PEAK Search ... 4 - 17 (4) MarKer Center Frequency ... 4 - 18 (5) SIGnal TRacK ... 4 - 19 (6) MARKER PAUSE ... 4 - 20 (7) Measurement of NOISE/Hz ... 4 - 21 4.11 Video Filter Band Width (VIDEO FiLTeR) ... 4 - 22 4.12 Setting of Sweep Time ... 4 - 23 4.13 Selection of Sweep Mode/Trigger Mode ... 4 - 24 4.14 Display Detection Mode ... 4 - 25 (1) SAMPLE DETection ... 4 - 25 (2) POSi PeaK DETection ... 4 - 25 (3) NORMAL DETection (POSI/NEGA DET) ... 4 - 26 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) ... 4 - 29 (5) MAX HOLD ... 4 - 31 4.16 Setting Conditions and SAVE/RECALL of Displayed Waveform ... 4-33 (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 - 37 4.19 QP Value Measurement (Quasi-peak Value Measurement) ... 4 - 39 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 - 49 4.23 Plotter Output ... 4 - 52 5. APPLIED MEASURING METHOD ... 5 - 1 5.1 Measurement of Modulation Frequency and Index of AM Signal ... 5-2 5.1.1 Measurement of AM Wave When the Modulation Frequency Is Low and Modulation Index Is Large ... 5 - 3 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 ... 5-13 5.2.3 Measurement of Peak Deviation ( f peak) of FM Wave ... 5 - 15 5.2.4 How to Obtain Modulation Index m when FM Modulation Index m Is Small ... 5 - 17 6. GPIB CONNECTION AND ITS PROGRAMMING ... 6 - 1 6.1 Outline of GPIB ... 6 - 2 6.2 Standards ... 6 - 4 6.2.1 GPIB Specifications ... 6 - 4 6.2.2 Interface Function ... 6 - 5 6.3 GPIB Handling Method ... 6-6 6.3.1 For Connection to Component Devices ... 6 - 6 6.3.2 Setting of ADDRESS SW ... 6 - 6 6.3.3 Programming ... 6 - 7 6.4 Setting of Each Function ... 6 - 8 6.4.1 Setting of Center Frequency ... 6 - 9 (1) When the Center Frequency Is Set Using the Command for Setting the TUNING Knob ... 6 - 9 (2) When the Value of Center Frequency is Set Directly ... 6-10 6.4.2 Setting of Frequency Span ... 6 - 11 (1) When Using the Command Corresponding to the Key on Front Panel ... 6 - 11 (2) When the Value of Frequency Span Is Set Directly ... 6 - 12 6.4.3 Setting of Reference Level ... 6 - 12 (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 - 14 6.4.4 Setting of Marker ... 6 - 14 (1) When Using the Command Corresponding to the Data Knob ... 6 - 14 (2) When the Value of Marker Frequency Is Set Directly ... 6 - 15 6.4.5 Setting of Resolution Band Width ... 6 - 16 (1) When Using the Command Corresponding to the Key ... 6 - 16 (2) When the Resolution Band Width Is Set Directly ... 6 - 17 6.4.6 Setting of VIDEO Filter Band Width ... 6 - 18 (1) When Using the Command Corresponding to the Key ... 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) ... 6 - 19 (1) When Using the Command Corresponding to the Key ... 6 - 20 (2) When the Sweep Time Is Set Directly ... 6-21 6.5 Output of Setting Conditions ... 6 - 22 6.5.1 "OP" Command ... 6 - 22 6.5.2 Format of Output Data ... 6 - 23 ( 1 ) Header ... 6 - 24 (2) Block Delimiter ... 6-26 6.5.3 Mode String ... 6-27 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 Code ... 6 - 31 (2) Method to Output Data with the Binary Code ... 6 - 32 6.6.2 Input of Trace Data ... 6 - 34 (1) Method to Input the Trace Data with the ASCII Code ... 6-34 (2) Method to Input the Trace Data with the Binary Code ... 6-35 6.7 Service Request ... 6-37 (1) Status Byte ... 6 - 37 (2) Output of Status Byte ... 6 - 38 6.8 Notes in Programming ... 6 - 39 (1) Noteworthy Points in Sending a Command ... 6 - 39 (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 - 40 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 ... 7 - 3 8. TECHNICAL DATA OF FUNCTION AND Accessories ... 8 - 1 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 9.1 Outline ... 9 - 2 9.1.1 Basic Operations ... 9 - 2 9.1.2 R4131 Series Configuration ... 9 - 5 9.2 RF Block ... 9 - 7 9.2.1 First Mixer ... 9-8 (1) 3.6 GHz Low-pass Filter ... 9 - 8 (2) 4.0 GHz Band Pass Filter ... 9 - 8 (3) First Mixer ... 9 - 8 9.2.2 Second Mixer ... 9 - 8 (1) 4.0 GHz Band Pass Filter ... 9 - 9 (2) Second Local Oscillator ... 9-9 (3) Second Mixer ... 9-9 9.2.3 Third and Fourth Mixers ... 9 - 9 (1 ) 226.42 MHz Preamplifier ... 9 - 9 (2) Third Mixer ... 9-9 (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 - 12 9.3.1 IF Filter ... 9-12 (1) Input 3.58 MHz Band Pass Filter ... 9 - 13 (2) Gain Adjust Amplifier ... 9 - 13 (3) Crystal Filter ... 9 - 15 (4) LC Filter ... 9 - 15 (5) Step Amplifier ... 9 - 16 9.3.2 YTO Controller and AFC ... 9 - 17 ( 1 ) YTO Controller ... 9 - 18 (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 ... 9-30 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 - 6 10.4 IF Filter Adjustment (YTO_CONT/IF Board ... 10 - 8 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 - 12 10.4.5 Step Amplifier Adjustment ... 10 - 13 10.5 YTO_CONT Adjustment (YTO_CONT/IF Board) (BLR-015116) ... 10 - 15 10.6 RF Block Adjustment ... 10 - 19 10.6.1 Third Local Oscillator Adjustment ... 10 - 19 10.6.2 Second Local Oscillator Adjustment ... 10 - 19 10.6.3 Fourth Local Oscillator Adjustment ... 10 - 19 10.7 Location Diagram of YTO CONT/IF Board ... 10 - 20 10.8 Location Diagram of Analog Board ... 10 - 21 1 1 . PERFORMANCE TESTING ... 11 - 1 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 - 10 11.5 Residual FM ... 11 - 12 11.6 Noise Sidebands ... 11 - 15 11.7 Resolution Bandwidth Accuracy ... 11 - 17 11.8 Resolution Bandwidth Selectivity ... 11 - 22 11.9 Resolution Bandwidth Switching Accuracy ... 11 - 24 11.10 LOG Linearity and LIN Linearity ... 11 - 26 11.11 Reference Level Accuracy ... 11 - 29 11.12 Residual Responses ... 11 - 31 11.13 Gain Compression ... 11 - 32 11.14 Frequency Response ... 11 - 34 11.15 Average Noise Level ... 11 - 37 11.16 Sweep Time Accuracy ... 11 - 39 11.17 Calibrated Output Accuracy ... 11 - 42 12. MAINTENANCE DATA ... 12 - 1 12.1 preparation ... 12 - 2 12.2 Location Diagram (Top & Bottom) ... 12 - 4 12.3 Location Diagram for RF ... 12 - 6 12.4 Block Diagram ... 12 - 7 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 ... A - 10 List of Figures ... F - 1 List of Tables ... T - 1 List of Examples ... E - 1 External View

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Service and User Manual
Manual type:
Service and User Manual
Pages:
362
Size:
10.18 Mbytes (10671838 Bytes)
Language:
english
Revision:
Manual ID:
EM00 9 5 04
Date:
1988 02 17
Quality:
Scanned document, all readable.
Upload date:
2016 08 17
MD5:
6537c9805175cb876200c4cc4fbcf884
Downloads:
2656