Anritsu MS2711B User Manual
Maintenance Manual
Site Master Spectrum Analyzer
MS2711B
Handheld Spectrum Analyzer for Measuring, Monitoring, and
Analyzing Signal Environments
Anritsu Company
490 Jarvis Drive
Morgan Hill, CA 95037-2809
USA
P/N: 10580-00072
Revision: C
Copyright 2009 Anritsu Company
Printed: June 2009
WARRANTY
The Anritsu product(s) listed on the title page is (are) warranted against defects in materials and workmanship for
three years from the date of shipment.
Anritsu’s obligation covers repairing or replacing products which prove to be defective during the warranty period.
Buyers shall prepay transportation charges for equipment returned to Anritsu for warranty repairs. Obligation is
limited to the original purchaser. Anritsu is not liable for consequential damages.
LIMITATION OF WARRANTY
The foregoing warranty does not apply to Anritsu connectors that have failed due to normal wear. Also, the warranty
does not apply to defects resulting from improper or inadequate maintenance by the Buyer, unauthorized
modification or misuse, or operation outside of the environmental specifications of the product. No other warranty is
expressed or implied, and the remedies provided herein are the Buyer’s sole and exclusive remedies.
DISCLAIMER OF WARRANTY
DISCLAIMER OF WARRANTIES. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, ANRITSU
COMPANY AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES, EITHER EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, WITH REGARD TO THE SOFTWARE PRODUCT. THE USER ASSUMES THE ENTIRE
RISK OF USING THE PROGRAM. ANY LIABILITY OF PROVIDER OR MANUFACTURER WILL BE LIMITED
EXCLUSIVELY TO PRODUCT REPLACEMENT.
NO LIABILITY FOR CONSEQUENTIAL DAMAGES. TO THE MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, IN NO EVENT SHALL ANRITSU COMPANY OR ITS SUPPLIERS BE LIABLE FOR ANY
SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING,
WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS
OF BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF THE USE OF OR
INABILITY TO USE THE SOFTWARE PRODUCTS, EVEN IF ANRITSU COMPANY HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME STATES AND JURISDICTIONS DO NOT ALLOW
THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE
ABOVE LIMITATION MAY NOT APPLY TO YOU.
TRADEMARK ACKNOWLEDGMENTS
Windows, Windows XP, Microsoft Paint, Microsoft Word, Microsoft Access, Microsoft Excel, Microsoft PowerPoint,
and Visual Studio are all registered trademarks of Microsoft Corporation.
Acrobat Reader is a registered trademark of Adobe Corporation.
MATLAB is a a registered trademark of The MathWorks Corporation.
NI is a trademark of the National Instruments Corporation.
Signature is a trademark of Anritsu Company.
NOTICE
Anritsu Company has prepared this manual for use by Anritsu Company personnel and customers as a guide for the
proper installation, operation and maintenance of Anritsu Company equipment and computer programs. The
drawings, specifications, and information contained herein are the property of Anritsu Company, and any
unauthorized use or disclosure of these drawings, specifications, and information is prohibited; they shall not be
reproduced, copied, or used in whole or in part as the basis for manufacture or sale of the equipment or software
programs without the prior written consent of Anritsu Company.
UPDATES
Updates, if any, can be downloaded from the Documents area of the Anritsu web site at:
http://www.us.anritsu.com
CE Conformity Marking
Anritsu affixes the CE Conformity marking onto its conforming products in accordance with Council Directives
of The Council Of The European Communities in order to indicate that these products conform to the EMC and
LVD directive of the European Union (EU).
C-tick Conformity Marking
Anritsu affixes the C-tick marking onto its conforming products in accordance with the electromagnetic
compliance regulations of Australia and New Zealand in order to indicate that these products conform to the
EMC regulations of Australia and New Zealand.
Notes On Export Management
This product and its manuals may require an Export License or approval by the government of the product
country of origin for re-export from your country.
Before you export this product or any of its manuals, please contact Anritsu Company to confirm whether or
not these items are export-controlled.
When disposing of export-controlled items, the products and manuals need to be broken or shredded to such a
degree that they cannot be unlawfully used for military purposes.
Mercury Notification
This product uses an LCD backlight lamp that contains mercury. Disposal may be regulated due to
environmental considerations. Please contact your local authorities or, within the United States, the
Electronics Industries Alliance (www.eiae.org) for disposal or recycling information.
Safety Symbols
To prevent the risk of personal injury or loss related to equipment malfunction, Anritsu Company uses the
following symbols to indicate safety-related information. For your own safety, please read the information
carefully before operating the equipment.
Symbols Used in Manuals
Danger
This indicates a very dangerous procedure that could result in serious
injury or death, and possible loss related to equipment malfunction, if not
performed properly.
Warning
This indicates a hazardous procedure that could result in light-to-severe
injury or loss related to equipment malfunction, if proper precautions are
not taken.
Caution
This indicates a hazardous procedure that could result in loss related to
equipment malfunction if proper precautions are not taken.
Safety Symbols Used on Equipment and in Manuals
The following safety symbols are used inside or on the equipment near operation locations to provide
information about safety items and operation precautions. Ensure that you clearly understand the meanings of
the symbols and take the necessary precautions before operating the equipment. Some or all of the following
five symbols may or may not be used on all Anritsu equipment. In addition, there may be other labels attached
to products that are not shown in the diagrams in this manual.
This indicates a prohibited operation. The prohibited operation is indicated symbolically in or near
the barred circle.
This indicates a compulsory safety precaution. The required operation is indicated symbolically in or
near the circle.
This indicates a warning or caution. The contents are indicated symbolically in or near the triangle.
This indicates a note. The contents are described in the box.
These indicate that the marked part should be recycled.
MS2711B Maintenance 10580-00072 C Safety-1
For Safety
Warning
Warning
Warning
Always refer to the operation manual when working near locations at which
the alert mark, shown on the left, is attached. If the operation, etc., is
performed without heeding the advice in the operation manual, there is a
risk of personal injury. In addition, the equipment performance may be
reduced.
Moreover, this alert mark is sometimes used with other marks and
descriptions indicating other dangers.
When supplying power to this equipment, connect the accessory 3-pin
power cord to a 3-pin grounded power outlet. If a grounded 3-pin outlet is
not available, use a conversion adapter and ground the green wire, or
connect the frame ground on the rear panel of the equipment to ground. If
power is supplied without grounding the equipment, there is a risk of
receiving a severe or fatal electric shock.
This equipment can not be repaired by the operator. Do not attempt to
remove the equipment covers or to disassemble internal components.
Only qualified service technicians with a knowledge of electrical fire and
shock hazards should service this equipment. There are hig h-voltage p arts
in this equipment presenting a risk of severe injury or fatal electric shock to
untrained personnel. In addition, there is a risk of damage to precision
components.
Warning
Use two or more people to lift and move this equipment, or use an
equipment cart. There is a risk of back injury if this equipment is lifted by
one person.
Electrostatic Discharge (ESD) can damage the highly sensitive circuits in
the instrument. ESD is most likely to occur as test devices are being
Caution
Safety-2 10580-00072 C MS2711B Maintenance
connected to, or disconnected from, the instrument’s front and rear panel
ports and connectors. You can protect the instrument and test devices by
wearing a static-discharge wristband. Alternatively, you can ground
yourself to discharge any static charge by touching the outer chassis of the
grounded instrument before touching the instrume nt’s front and rear panel
ports and connectors. Avoid touching the test port center conductors
unless you are properly grounded and have eliminated the possibility of
static discharge.
Repair of damage that is found to be caused by electrostatic discharge is
not covered under warranty.
Table of Contents
Chapter 1—General Information
1-1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Identification Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-3 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-4 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-5 Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Chapter 2—Performance Verification
2-1 Performance Verification Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Frequency Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-3 Phase Noise Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-4 Second Harmonic Distortion Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-5 Residual Spurious Response Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-6 Level Accuracy Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2-7 Dynamic Range Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Equipment required: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2-8 Power Monitor (Option 5) Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2-9 Preamplifier (Option 8) Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
2-10 Level Accuracy Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
MS2711B Maintenance 10580-00072 C Contents-1
2-11 Tracking Generator (Option 20) Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Equipment Required:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Procedure:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Chapter 3—Removal and Replacement
3-1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 Static Sensitive Assembly Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Additional Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3-3 Battery Pack Removal And Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Battery Testing Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-4 Front Panel Assembly Removal And Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-5 LCD Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3-6 Key Pad PCB Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3-7 Key Pad Membrane Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3-8 PCB Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Appendix A—Test Records
A-1 Preamplifier (Option 8) Level Accuracy Test Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
A-2 Preamplifier (Option 8) Level Accuracy Test Characterization . . . . . . . . . . . . . . . . . . . . . . . . A-3
A-3 Preamplifier (Option 8) Level Accuracy Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
A-4 Tracking Generator Option Level Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
A-5 Tracking Generator Harmonics and Spurious Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Contents-2 10580-00072 C MS2711B Maintenance
Chapter 1 — General Information
1-1 Introduction
This manual provides maintenance instructions for the MS2711B Spectrum Analyzer. It describes the product
and provides performance verification procedures, parts replacement procedures, and a replaceable parts list.
1-2 Identification Number
All Anritsu instruments are assigned a six-digit serial number, such as “101001”. This number appears on a
decal affixed to the back panel of the instrument. Please use this identification number during any
correspondence with Anritsu Service Centers about this instrument.
1-3 Description
The MS2711B Spectrum Analyzer is a synthesizer-based hand held spectrum analyzer that provides quick and
accurate signal results. Measurements can be easily made using the main instrument functions: frequency,
span, amplitude, and bandwidth. A simplified block diagram is provided in Figure 1-1.
Figure 1-1. MS2711B Spectrum Analyzer Block Diagram
1-4 Options
The following options are available for the MS2711B:
• Option 5: RF Wattmeter Power Monitor (RF detector not included)
• Option 8: 3/4 Built-in 20 dB Preamplifier, 1 MHz to 3 GHz
• Option 20: 3/4 Built-in Tracking Generator, 10 MHz to 3 GHz
Note
MS2711B Maintenance 10580-00072 C 1-1
Option 5 and Option 8 are mutually exclusive; that is, they cannot both be installed in the same
instrument at the same time.
Replaceable Parts General Information
1-5 Replaceable Parts
Replaceable parts for the Model MS2711B Spectrum Analyzer are listed below.
Table 1-1. Replaceable Parts List
Part Number Description Qty
Accessories
10580-00074
10580-00071
2300-347
40-115
2000-1029
806-62
800-441
48258
510-87
551-152
15-102
633-27
ND58427
ND58428
User Guide, MS2711B Spectrum Analyzer 1
Programming Manual, MS2711B Spectrum Analyzer (available on disk only) 1
Software Tools, MS2711B Spectrum Analyzer 1
Power Supply 1
Battery Charger 1
Cable Assy, Cig Plug, Female 1
Serial Interface Cable Assy 1
Soft Carrying Case 1
Replaceable Parts
N-Connector 1
Option 05 Input Connector 1
Liquid Crystal Display Assy 1
Rechargeable Battery, NiMH 1
MS2711B PCB Assembly 1
MS2711B PCB Assembly with Option 05 1
ND58429
ND58430
ND58431
ND58432
52737-3
46649-3
ND56502
900-861
900-869
900-720
900-697
900-326
MS2711B PCB Assembly with Option 8 1
MS2711B PCB Assembly with Option 20 1
MS2711B PCB Assembly with Option 05 and Option 20 1
MS2711B PCB Assembly with Option 08 and Option 20 1
Keypad PCB Assy 1
Membrane Keypad, Main 1
Speaker and Cable Assembly 1
Hardware
Pan Head Screw, 4-20, 0.365 18
Screw, 4-40, 0.875 4
Screw, 4-40, 0.187 9
Screw, 4-40, 0.312 3
Kep Nut, 4-40, 0.187 12
1-2 10580-00072 C MS2711B Maintenance
General Information Replaceable Parts
Table 1-1. Replaceable Parts List (Continued)
Part Number Description Qty
Hardware (Continued)
790-516
790-42
761-79
46652-4
46653-1
48231-1
790-509
790-510
790-511
46655
46662
48241
48278
46659
46661
Hole Plug, 0.6875L 1
Hole Plug, 0.625 1
Cap Vinyl, Black, round 1
Case Parts
Top Case 1
Bottom Case 1
Battery Door 1
1
Battery Door Latch (3 pieces)
Case Corner Bumpers 4
LCD Retainer Plate 1
Foam, LCD Corners 8
Foam, LCD Window 1
Foam, LCD Backing 1
Foam, Keypad Backing 1
48246
48271
720-19
790-515
55212
Foam, Battery Door 1
Foam, Battery Compartment 1
Cable Clamp 1
Spring, Battery Compartment 3
ID Label, Model MS2711B 1
MS2711B Maintenance 10580-00072 C 1-3
Replaceable Parts General Information
1-4 10580-00072 C MS2711B Maintenance
Chapter 2 — Performance Verification
2-1 Performance Verification Procedures
The following procedures can be used to verify the performance of the MS2711B Spectrum Analyzer having
firmware version 2.09 or later.
2-2 Frequency Accuracy
The following test can be used to verify the CW frequency accuracy of the Spectrum Analyzer.
Equipment Required:
• Anritsu MG3692A Synthesized Signal Source with Option 15A, or equivalent
• Anritsu 34RSN50 50 ohm adapter or equivalent
• Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent
• 10 MHz Reference Standard
• BNC male to BNC male coaxial cable
Procedure:
1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source.
2. Connect the output of the source to the MS2711B RF Input.
3. Connect the external power supply (Anritsu part number 40-115) to the MS2711B.
4. Press and hold the ESCAPE/CLEAR key, then press the ON/OFF key to turn on the Spectrum Analyzer.
(This sets the instrument to the factory preset state.)
5. Turn on the 10 MHz reference source and the Anritsu MG3692A Synthesized Signal Source.
6. Set the MG3692A output to 2000 MHz CW with an RF output level of 0 dBm.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
7. On the MS2711B, press the AMPLITUDE key and the REF LEVEL soft key.
8. Enter 20 and press the ENTER key to set the Reference Level to 20 dBm.
9. Press the FREQ/SPAN key and the CENTER soft key.
10. Enter 2000 and press the ENTER key to set the center frequency to 2000 MHz.
11. Press the SPAN soft key and enter 50. Press the kHz soft key to set the span to 50 kHz.
12. Press the BW/SWEEP key.
13. Press the RBW soft key and then the MANUAL soft key. Use the Up/Down arrow key to select 10 kHz.
Press ENTER to set the resolution bandwidth to 10 kHz, and press BACK.
14. Press the VBW soft key and then the MANUAL soft key. Use the Up/Down arrow key to select 3 kHz.
Press ENTER to set the video bandwidth to 3 kHz.
15. Press the MARKER (8) key, then the M1 soft key.
16. Press the EDIT soft key and use the Up/Down arrow key to center the marker on the waveform. Verify
that the marker frequency is 2000 MHz ±4 kHz.
MS2711B Maintenance 10580-00072 C 2-1
Phase Noise Verification Performance Verification
2-3 Phase Noise Ve rification
Equipment Required:
• Anritsu MG3692A Synthesized Signal Source with Option 2A, Option 4, and Option 15A, or equivalent
• Anritsu 34RSN50 50 ohm adapter or equivalent
• Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent
Procedure:
1. Connect the output of the source to the MS2711B RF Input.
2. Connect the external power supply (Anritsu part number 40-115) to the MS2711B.
3. Press and hold the ESCAPE/CLEAR key, then press the ON/OFF key to turn on the Spectrum Analyzer.
(This sets the instrument to the factory preset state.)
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
4. Set the MG3692A output to 1000 MHz CW with an RF output level of – 30 dBm.
5. On the MS2711B, press the BW/SWEEP key.
6. Press the RBW soft key and then the MANUAL soft key. Use the Up/Down arrow key to select 10 kHz.
Press ENTER to set the resolution bandwidth to 10 kHz, and then press BACK.
7. Press the VBW soft key and then the MANUAL soft key. Use the Up/Down arrow key to select 3 kHz.
Press ENTER to set the video bandwidth to 3 kHz.
8. On the MS2711B, press the FREQ/SPAN key and the CENTER soft key.
9. Enter 1000 and press the MHz soft key to set the center frequency to 1000 MHz.
10. Press the SPAN soft key and enter 0.1. Press the MHz soft key to set the span to 0.100 MHz.
11. Press the AMPLITUDE key.
12. Press the REF LEVEL soft key and enter –27. Press the ENTER key to set the reference level to – 27 dBm.
13. Press the MARKER (8) key, then the M1 soft key.
14. Press EDIT and enter 1000. Press the MHz soft key to set the M1 marker frequency to 1000 MHz.
15. Press the BACK soft key and the M2 soft key.
16. Press EDIT and enter 1000.03. Press MHz to set the M2 marker frequency to 1000.030 MHz (30 kHz
higher than the center frequency).
17. Press the DELTA (M2-M1)
18. Press the SINGLE/CONT (+/–) key and read and record the D2 reading.
19. Press the SINGLE/CONT (+/–) key to read and record five values, then calculate the average of the five
recorded values.
20. Subtract 40 dB from the average value and verify that the result is ≤ –75 dBc/Hz.
(For example: –35dBc measured –40dB=–75dBc/Hz.)
soft key.
2-2 10580-00072 C MS2711B Maintenance
Performance Verification Phase Noise Verification
The measured value is converted to dBc/Hz using the following formula:
dBc
---------- -
Hz
Note
At 10 kHz RBW, , so
dBc
---------- -
Hz
21. Press the BACK soft key and the M3 soft key.
22. Press the EDIT key and enter 999.970. Press MHz to set the M3 marker frequency to 999.970 MHz
(30 kHz lower than the center frequency).
23. Press the DELTA (M3-M1) soft key.
24. Press the SINGLE/CONT (+/–) key. Read and record the Δ3 reading.
25. Press the SINGLE/CONT (+/–) key to read and record five values, then calculate the average of the five
recorded values.
Subtract 40 dB from the average value and verify that the result is ≤ –75 dBc/Hz.
(For example: –35 dBc measured –40 dB = –75 dBc/Hz)
measured dBc⋅ 10
RBW
⎛⎞
10
--------------
⎝⎠
1Hz
measured dBc⋅–40–=
40=log×
RBW
⎛⎞
--------------
log×––=
⎝⎠
1Hz
MS2711B Maintenance 10580-00072 C 2-3
Second Harmonic Distortion Test Performance Verification
2-4 Second Harmonic Distortion Test
The following test can be used to verify the input related spurious response of the Spectrum Analyzer.
Equipment Required:
• Anritsu MG3692A Synthesized Signal Source with Option 2A, Option 4, and Option 15A, or equivalent
• Anritsu 34RSN50 50 ohm adapter or equivalent
• Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent
• 10 MHz Reference Standard
• 50 MHz Low Pass Filter (Anritsu part number 1030-96)
• BNC male to BNC male coaxial cable
Procedure:
1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source.
2. Connect one end of the 50 MHz Low Pass Filter to the output of the source and the other end to the
Spectrum Analyzer RF Input with the RF coaxial cable.
3. Connect the external power supply (Anritsu part number 40-115) to the Site Master.
4. On the MS2711B, press and hold the ESCAPE/CLEAR key, then press the ON/OFF key to turn on the
Spectrum Analyzer. (This sets the instrument to the factory preset state.)
5. Turn on the 10 MHz reference source and the Anritsu MG3692A Synthesized Signal Source.
6. Set the MG3692A output to 40 MHz CW, with an RF output level of –30 dBm.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
7. On the Spectrum Analyzer, press the AMPLITUDE key and the REF LEVEL soft key.
8. Enter –27 and press the ENTER key to set the Reference Level to –27 dBm.
9. Press the SCALE soft key and enter 7, then press ENTER.
10. Press the FREQ/SPAN key and then the CENTER soft key.
11. Enter 40 and press the MHz soft key to set the center frequency to 40 MHz.
12. Press the SPAN soft key and enter 0.2. Press the MHz soft key to set the span to 0.200 MHz.
13. Press the BW/SWEEP key.
14. Press the RBW soft key and then the MANUAL soft key. Use the Up/Down arrow key to select 10 kHz.
Press ENTER to set the resolution bandwidth to 10 kHz and press BACK.
15. Press the VBW soft key and then the MANUAL soft key. Use the Up/Down arrow key to select 3 kHz.
Press ENTER to set the video bandwidth to 3 kHz.
16. Press the MARKER (8) key, then the M1 soft key.
17. Press the EDIT soft key, then enter 40. Press the MHz soft key to set M1 to 40 MHz.
18. On the MG3692A Synthesized Signal Source, adjust the output level so that the M1 reading of the
Spectrum Analyzer is –30 dBm at 40 MHz.
19. On the Spectrum Analyzer, press the FREQ/SPAN key and then the CENTER soft key.
20. Enter 80 and press the MHz soft key to set the center frequency to 80 MHz.
21. Press the MARKER (8) key and the M1 soft key.
22. Press the EDIT soft key, then enter 80. Press the MHz soft key to set M1 to 80 MHz.
23. Record the amplitude of the signal at M1 80 MHz:
Second Harmonic Level @ 80 MHz =____dBm
2-4 10580-00072 C MS2711B Maintenance
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