Tektronix RSA3408A Service Manual

Service Manual

RSA3408A
8 GHz Real-Time Spectrum Analyzer

071-1691-02

This document applies to firmware version 3.20
and above.

Warnin g

The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.

www.tektronix.com

Copyright © Tektronix. All rights reserved. L icensed software products are owned by Tektronix or its subsidiaries or
suppliers, and are protected by national copyright laws and i nternational treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc.
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA

For product information, sales, service, and technical support:

H In North America, call 1-800-833-9200.
H Worldwide, visit www.tektronix.com to find contacts in your are a.

Warranty 2

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year
from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, e ither
will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the
defective product. Parts, modules and replacement products used by Tektronix for warranty work may be new or
reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suita ble arrangements for the performance of servic e. Customer shal l be responsible for
packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid.
Tektronix shall pay for the return of the product to Customer if the shipme nt is to a location within the country in which the
Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any
other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel othe r than Tektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or c onnection to incompatible equipment; c) to repair any damage or malfunction
caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrat ed with other
products when the effect of such modification or integration increases the time or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER
WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’
RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY
PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL
NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADV ANCE NOTICE OF THE POSSIBILITY
OF SUCH DAMAGES.

Table of Contents

Specifications

Operating Information
Theory of Operation

General Safety Summary ix...................................

Service Safety Summary xi....................................

Preface xiii...................................................

Manual Structure xiii................................................

Manual Conventions xiv..............................................

Related Documentation xiv...........................................

Introduction xv..............................................

Performance Check Interval xv........................................

Strategy for Servic ing xv.............................................

Performance Conditions 1--1...........................................

Electrical Characteristics 1--2..........................................

Physical Characteristics 1-- 16...........................................

Environmental Characteristics 1--16......................................

Digital IQ Output Connector Pin Assignment (Option 05 Only) 1--19...........

RF Input 3--1.......................................................

Down Converter 3--1.................................................

Digital Signal Processing 3--3..........................................

Power Supply 3--4...................................................

External Interface 3--5................................................

Performance Verification

Performance Verification Procedures 4--1.........................

Conventions 4--2....................................................

Brief Procedures 4--3...........................................

Functional Tests 4--4.................................................

Diagnostics 4--8.....................................................

Performance Tests 4--9.........................................

Prerequisites 4--10....................................................

Equipment Required 4--10..............................................

Auto Tests 4--12......................................................

Frequency Checks 4--21................................................

Noise Sideband Checks 4--25...........................................

Amplitude Checks 4--28...............................................

Spurious Response Checks 4--40.........................................

Test Record 4--52.....................................................

RSA3408A Service Manual

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Table of Contents

Adjustment Procedures

Maintenance

Requirements for Performance 5--1......................................

Equipment Required 5--2..............................................

Preparation 5--3.....................................................

Self Calibration 5--16..................................................

Auto Calibration 5--20.................................................

Reconfiguration of RF Modules 5--33.....................................

Related Maintenance Procedures 6 --1....................................

Preparation 6--2.....................................................

Inspection and Cleaning 6--4...........................................

Removal and Installation Procedures 6--7.........................

Preparation 6--7.....................................................

Access Procedure 6--21................................................

Procedures for External Modules 6--22....................................

Procedures for RF Modules 6--27........................................

Procedures for CPU Board and Disk Modules 6--31..........................

Procedures for Mother Boa rd and Daughter Boards 6--41.....................

Procedures for Power Supply Modules on the Instrument Bottom 6--46..........

Procedures for RF1 Modules on the Instrument Bottom 6--51..................

Procedures for Front Panel Modules 6--56.................................

Procedures for Chassis Modules 6--62.....................................

Troubleshooting 6--67...........................................

Troubleshooting Procedure 6--67.........................................

Symptoms and Faulty Modules 6--78.....................................

Required Adjustments After Replacing Modules 6--80.......................

Options
Electrical Parts List
Diagrams
Mechanical Parts List

ii

Replaceable Parts 10--1..........................................

Parts Ordering Information 10--1.........................................

Using the Replaceable Parts List 10--3....................................

RSA3408A Service Manual

List of Figures

Table of Contents

Figure 1--1: Definition of the setup and hold time 1--15...............

Figure 1--2: Digital IQ output connector pin assignment 1--19.........

Figure 4--1: Spectrum of the calibration signal (100 MHz, --20 dBm) 4--5

Figure 4--2: Setup display 4--6...................................

Figure 4--3: Reference level setting and A/D overflow indicator 4--7....

Figure 4--4: Spectrogram display 4--7.............................

Figure 4--5: Diagnostic screen 4--8................................

Figure 4--6: Auto test initial screen 4--12............................

Figure 4--7: Performance test result display 4--16....................

Figure 4--8: Hookup for calibrating the power sensor 4--29............

Figure 4--9: Hookup for setting the signal generator output 4--29.......

Figure 4--10: Hookup for checking the absolute amplitude accuracy 4--30

Figure 5--1: Hookup for storing the cal factors in the power meter 5--5.

Figure 5--2: Initial test hookup 5--7...............................

Figure 5--3: Hookup for calibrating the power sensor 5--9............

Figure 5--4: Initial test hookup 5--10...............................

Figure 5--5: Hookup for calibrating the power sensor 5--12............

Figure 5--6: UNCAL display 5--16.................................

Figure 5--7: Calibration menu 5--17...............................

Figure 5--8: Center offset 5--18....................................

Figure 5--9: DC offset 5--19.......................................

Figure 5--10: Auto calibration initial screen 5--20....................

Figure 5--11: Test h ookup 5--34...................................

Figure 5--12: Test h ookup 5--35...................................

Figure 6--1: Analyzer orientation 6--11.............................

Figure 6--2: External modules 6--12................................

Figure 6--3: RF modules 6--13....................................

Figure 6--4: CPU board and disk modules 6--14.....................

Figure 6--5: Removable hard disk modules (Option 06) 6--15..........

Figure 6--6: Mother board and daughter boards 6--16................

Figure 6--7: Bottom modules -- Power supply 6--17...................

Figure 6--8: Bottom modules -- RF1 6--18...........................

Figure 6--9: Front panel modules 6--19.............................

RSA3408A Service Manual

iii

Table of Contents

Figure 6--10: Chassis modules 6--20...............................

Figure 6--11: Guide to removal procedures 6--21.....................

Figure 6--12: Line cord and cabinet removal 6--23...................

Figure 6--13: Front cushion removal 6--24..........................

Figure 6--14: Cabinet modules removal 6--26........................

Figure 6--15: RF modules removal 6--29............................

Figure 6--16: CPU board removal 6--32............................

Figure 6--17: Disk module removal 6--34...........................

Figure 6--18: Hard drive cartridge removal 6--37....................

Figure 6--19: Hard disk drive removal 6--38.........................

Figure 6--20: Outside HDD bracket assembly removal 6--39...........

Figure 6--21: Disk unit removal 6--40..............................

Figure 6--22: Daughter boards removal 6--43........................

Figure 6--23: Mother board removal 6--45..........................

Figure 6--24: Power supply 1 and 2 removal 6--47....................

Figure 6 --25: Power supply modules removal 6--49...................

Figure 6--26: RF1 modules removal -- 1 6--52........................

Figure 6--27: RF1 modules removal -- 2 6--54........................

Figure 6--28: Front panel assembly removal 6--57....................

Figure 6--29: Front panel modules removal 6--58....................

Figure 6--30: LCD display removal 6--61...........................

Figure 6--31: Fan and side panel removal 6--63......................

Figure 6--32: Board guide bracket removal 6--64.....................

Figure 6--33: Rear panel removal 6--65.............................

Figure 6--34: Troubleshooting procedure 1 — Power supply system 6--68

Figure 6--35: Troubleshooting procedure 2 — Display and CPU

system 6--69................................................

Figure 6--36: Troubleshooting procedure 3 — Signal path 6--70........

Figure 6--37: Top view of the instrument for cable interconnection 6--75.

Figure 6--38: Bottom view the instrument for cable interconnection 6 --76

Figure 6--39: A70 DC power supply board 6--78.....................

Figure 9--1: Block diagram 9--3..................................

Figure 9--2: Interconnect diagram 9--5............................

Figure 10--1: External modules 10--5...............................

Figure 10--2: Front-panel assembly -- 1 10--7........................

Figure 10--3: Front-panel assembly -- 2 10--9........................

Figure 10--4: RF modules 10--11...................................

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RSA3408A Service Manual

Table of Contents

Figure 10--5: Mother board and its daughter boards 10--13.............

Figure 10--6: Disk modules 10--15..................................

Figure 10--7: Disk modules (Option 06) -- 1 10--17.....................

Figure 10--8: Disk modules (Option 06) -- 2 10--19.....................

Figure 10--9: Bottom modules -- Power supply 10--21..................

Figure 10--10: Bottom modules -- RF1 10--23.........................

Figure 10--11: Chassis modules -- 1 10--25............................

Figure 10--12: Chassis modules -- 2 10 --27...........................

Figure 10--13: Rackmount 10--29...................................

RSA3408A Service Manual

v

Table of Contents

List of Tables

Table 1--1: Frequency 1--2......................................

Table 1--2: Noise sideband 1--3..................................

Table 1--3: Input 1--4..........................................

Table 1--4: Amplitude 1--5......................................

Table 1--5: Spurious response 1--6...............................

Table 1--6: Acquisition 1--7.....................................

Table 1--7: Trigger 1--8.........................................

Table 1--8: RBW (Resolution Bandwidth) 1--9.....................

Table 1--9: Trace and display line 1--9............................

Table 1--10: Display 1--10.......................................

Table 1--11: Measurement function 1--10...........................

Table 1--12: Analog demodulation accuracy 1--10...................

Table1--13:Pulsemeasurement 1--11.............................

Table 1--14: Digital demodulation (Option 21 only) 1--11.............

Table 1--15: ACLR measurement (Option 27) 1--13..................

Tab le 1-- 16: Wireless LAN measurement (Option 29) 1--13............

Table 1--17: Controller 1-- 14.....................................

Table 1--18: External output connector 1--14.......................

Table 1--19: Power requirements 1--15.............................

Table 1--20: Physical characteristics 1--16..........................

Table 1--21: Environmental characteristics 1--16....................

Table 1--22: Certifications and compliances 1--17....................

Table 1--23: I OUTPUT connector pin assignment 1--19..............

Table 1--24: Q OUTPUT connector pin assignment 1--21.............

Table 4--1: Span and RBW 4--6..................................

Table 4--2: Internal diagnostic program 4--8.......................

Table 4--3: Test equipment 4 -- 10..................................

Table 4--4: Test item selection 4--13...............................

Table 4--5: Procedure for failed test item 4--19......................

Table 4--6: Level linearity test result 4--39..........................

Table 4--7: Spurious measurement 4--51...........................

Table 5--1: Test equipment 5--2..................................

Table 5--2: Compatibility of the spurious correction file 5--15.........

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RSA3408A Service Manual

Table of Contents

Table 5--3: Calibration items 5--21................................

Table 6--1: Relative susceptibility to static-discharge damage 6--3.....

Table 6--2: External inspection check list 6--5......................

Table 6--3: Internal inspection check list 6--6......................

Table 6--4: Summary of procedures 6--9..........................

Table 6--5: Tools required for module removal 6--10.................

Table 6--6: Normal supply voltages 6--77...........................

Table 6--7: Test point voltages on A70 6--78.........................

Table 6--8: Symptoms and faulty modules 6--79.....................

RSA3408A Service Manual

vii

Table of Contents

viii

RSA3408A Service 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.

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.

Provide Proper Ventilation. Refer to the manual’s installation instructions for

details on installing the product so it has proper ventilation.

Symbols and Terms

RSA3408A Service 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.

CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.

ix

General Safety Summary

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:

WARNING

High Voltage

Protective Ground

(Earth) Terminal

CAUTION

Refer to Manual

x

RSA3408A Service Manual

Service Safety Summary

Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service

procedures.

Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.

Disconnect Power. To avoid electric shock, switch off the instrument power, and
then disconnect the power cord from the mains power.

Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.

To avoid electric shock, do not touch exposed connections.

RSA3408A Service Manual

xi

Service Safety Summary

xii

RSA3408A Service Manual

Preface

Manual Structure

This is the service manual for the RSA3408A 8 GHz Real-Time Spectrum
Analyzer. This manual contains information needed to service the analyzer to the
module level.

This manual is divided into sections, such as Specifications and Theory of

Operation. Further, some sections are divided into subsections, such as
Product Description and Removal and Installation Procedures.

Sections containing procedures also contain introductions to those procedures.
Be sure to read these introductions because they provide information needed to
do the service correctly and efficiently. The manual section name and a brief
description of each is given below.

H Specifications contains a description of the analyzer and the applicable

characteristics.

H Operating Information contains a statement referring you to the RSA3408A

User Manual.

H Theory of Operation contains circuit descriptions that support service to the

module level.

H Performance Verification contains procedures for confirming that the

analyzer functions properly and meets warranted limits.

H Adjustment Procedures contains procedures for adjusting the analyzer to

meet warranted limits.

H Maintenance contains information and procedures for performing preventive

and corrective maintenance of the analyzer. These instructions include
cleaning, module removal and installation, and fault isolation to the module.

H Options contains a statement referring you to the RSA3408A User Manual.

H Electrical Parts List contains a statement referring you to Mechanical Parts

List, where both electrical and mechanical modules are listed.

H Diagrams contains a block diagram and an interconnection diagram.

H Mechanical Parts List includes a table of all replaceable modules, their

descriptions, and their Tektronix part numbers.

RSA3408A Service Manual

xiii

Preface

Manual Conventions

This manual uses certain conventions that you should become familiar with.

Some sections of the manual contain procedures for you to perform. To keep
those instructions clear and consistent, this manual uses the following conven­tions:

H Names of front panel controls and menus appear in the same case (initial

capitals, all uppercase, etc.) in the manual as is used on the analyzer front
panel and menus. Front panel names are all upper-case letters; for example,
SPAN, TRIG, and SELECT.

H Instruction steps are numbered unless there is only one step.

Modules

Safety

Related Documentation

Throughout this manual, any replaceable component, assembly, or part of the
analyzer is referred to generically as a module. In general, a module is an
assembly (like a circuit board), rather than a component (like a resistor or an
integrated circuit). Sometimes a single component is a m odule; for example, the
chassis of the analyzer is a module.

Symbols and terms related to safety appear in the Safety Summary near the
beginning of this manual.

Other documentation for the RSA3408A analyzer includes:

H The RSA3408A User Manual contains a tutorial to quickly describe how to

operate the analyzer. It also includes an in-depth discussion on how to more
completely use the analyzer features.

H The RSA3408A Programmer Manual explains how to use t he GPIB interface

to remotely control the analyzer.

xiv

RSA3408A Service Manual

Introduction

This manual contains information needed to properly service the RSA3408A
8 GHz Real-Time Spectrum Analyzer as well as general information critical to
safe and effective servicing.

To prevent personal injury or damage to the analyzer, consider the following
before attempting service:

H The procedures in this manual should be performed only by a qualified

service person.

H Read the General Safety Summary and the Service Safety Summary,

beginning on page ix.

H Read the RSA3408A User Manual (Tektronix part number 071-1617-xx) for

operating information.

When using this manual for servicing, be sure to follow all warnings, cautions,
and notes.

Performance Check Interval

Strategy for Servicing

Generally, the performance check described in section 4, Performance Verifica­tion, should be done every 12 months. In addition, performance check is

recommended after module replacement.

If the analyzer does not meet performance criteria, repair is necessary.

Throughout this manual, the term “module” refers to any field-replaceable
component, assembly, or part of the analyzer.

This manual contains all the information needed for periodic maintenance of the
analyzer. (Examples of such information are procedures for checking perfor­mance.)

Further, it contains all i nformation for corrective maintenance down to the
module level. To isolate a failure to a module, use the fault isolation procedures
found in Troubleshooting, part of section 6, Maintenance. To remove and replace
any failed module, follow the instructions in Removal and Installation Proce-
dures, also part of section 6. After isolating a faulty module, replace it with a
fully-tested module obtained from the factory. Section 10, Mechanical Parts
List, contains part number and ordering information for all replaceable modules.

RSA3408A Service Manual

xv

Introduction

xvi

RSA3408A Service Manual

Specifications

This section contains the RSA3408A 8 GHz Real-Time Spectrum Analyzer
specifications. All specifications are guaranteed unless labeled Typical. Typical
specifications are provided for your convenience.

NOTE. In these tables, those warranted characteristics that are checked in the

Performance Verification appear with the n symbol in the Characteristics
column.

Performance Conditions

The performance limits in this specification are valid with these conditions:

H The analyzer must have been calibrated and adjusted at an ambient tempera-

H The analyzer must be in an environment with temperature, altitude,

ture between +20

humidity, and vibration within the operating limits described in these
specifications.

_C and +30 _C.

H The analyzer must have had a warm-up period of at least 20 minutes.

RSA3408A Service Manual

1- 1

Specifications

Electrical Characteristics

Table 1- 1: Frequency

Characteristics Description

Measurement frequency

Frequency range Overall: DC t o 8 GHz

Baseband: DC to 40 MHz
RF1: 40 MHz to 3.5 GHz
RF2: 3.5 GHz to 6.5 GHz
RF3: 5 GHz to 8 GHz

Center frequency setting resolution 0.1 Hz

n Frequency marker readout accuracy

Residual FM (Typical) 2Hzp--p

Span accuracy ±1bin

RBW filter bandwidth accuracy 0.1% against noise bandwidth

Reference frequency

Aging per day 1 × 10

Aging per year 1 × 10

Temperature drift 1 × 10

n Total frequency error

Reference output level >0 dBm

External reference input 10 MHz, --10 to +6 dBm. Spurious level must be <--80 dBc within 100 kHz offset.

Baseband:±(RE × MF + 0.001 × Span + 0.2) Hz
RF1to3: ±(RE × MF + 0.001 × Span + 2) Hz

RE: Reference frequency error; MF: Marker frequency [Hz]

The first term (RE × MF) shows the frequency uncertainty due to the reference
frequency error. The second term (0.001 × Span) shows the uncertainty due to the
limited bin number. Because more than 500 bins are available in the frequency
display, 0.5 bin uncertainty corresponds to 0.001. The third term is the residual FM.

-- 9

(after 30 days of operation)

-- 7

(after 30 days of operation)

-- 7

(10to40_C)

-- 7

2 × 10

(within one year after calibration)

1- 2

RSA3408A Service Manual

Table 1- 2: Noise sideband

Characteristics Description

Noise sideband Offset

Frequency = 1000 MHz --105 dBc/Hz

-- 1 1 0 d B c / H z

-- 1 1 0 d B c / H z

-- 1 1 0 d B c / H z

-- 1 1 2 d B c / H z

--132 dBc/Hz

--138 dBc/Hz

--138 dBc/Hz

--138 dBc/Hz

Frequency = 2000 MHz --103 dBc/Hz

--109 dBc/Hz

--109 dBc/Hz

--109 dBc/Hz

-- 1 1 2 d B c / H z

--132 dBc/Hz

--138 dBc/Hz

--138 dBc/Hz

--138 dBc/Hz

Frequency = 6000 MHz --97 dBc/Hz

--106 dBc/Hz

--106 dBc/Hz

--106 dBc/Hz

- -111 dB c/H z

--132 dBc/Hz

--137 dBc/Hz

--137 dBc/Hz

--137 dBc/Hz

Frequency = 1000 MHz, Ty p i c a l --107 dBc/Hz

-- 1 1 2 d B c / H z

-- 1 1 2 d B c / H z

-- 1 1 2 d B c / H z

-- 1 1 5 d B c / H z

--135 dBc/Hz

--140 dBc/Hz

--140 dBc/Hz

--140 dBc/Hz

Specifications

1kHz
10 kHz
20 kHz
30 kHz
100 kHz
1MHz
5MHz
7MHz
10 MHz

1kHz
10 kHz
20 kHz
30 kHz
100 kHz
1MHz
5MHz
7MHz
10 MHz

1kHz
10 kHz
20 kHz
30 kHz
100 kHz
1MHz
5MHz
7MHz
10 MHz

1kHz
10 kHz
20 kHz
30 kHz
100 kHz
1MHz
5MHz
7MHz
10 MHz

RSA3408A Service Manual

1- 3

Specifications

Table 1- 2: Noise sideband (Cont.)

Characteristics Description

Frequency = 2000 MHz, Ty p i c a l --105 dBc/Hz

- -111 dB c/H z

- -111 dB c/H z

- -111 dB c/H z

-- 1 1 5 d B c / H z

--135 dBc/Hz

--140 dBc/Hz

--140 dBc/Hz

--140 dBc/Hz

Frequency = 6000 MHz, Ty p i c a l --99 dBc/Hz

--108 dBc/Hz

--108 dBc/Hz

--108 dBc/Hz

-- 1 1 3 d B c / H z

--134 dBc/Hz

--139 dBc/Hz

--139 dBc/Hz

--139 dBc/Hz

1kHz
10 kHz
20 kHz
30 kHz
100 kHz
1MHz
5MHz
7MHz
10 MHz

1kHz
10 kHz
20 kHz
30 kHz
100 kHz
1MHz
5MHz
7MHz
10 MHz

Table 1- 3: Input

Characteristics Description

Signal input

Input connector N type (RF and baseband input); BNC type (Option 03 IQ input)

Input impedance 50 Ω

VSWR <1.4 (2.5 GHz, RF attenuation≥10 dB)

<1.8 (7.5 GHz, RF attenuation≥10 dB)

Typi cal <1.4 (300 kHz to 40 MHz, RF attenuation≥10 dB)

<1.3 (40 MHz to 3 GHz, RF attenuation≥10 dB)
<1.4 (3 GHz to 8 GHz, RF attenuation≥10 dB)

Maximum input level

Maximum DC voltage ±0.2 V (RF1 to 3)

±5 V (Baseband)
±5 V (Option 03 IQ input)

Maximum input power +30 dBm (RF1 to 3, RF attenuation≥10 dB)

Input attenuator

RF/Baseband attenuator 0to55dB(5dBstep)

I/Q attenuator (Option 03) 0to35dB(5dBstep)

1- 4

RSA3408A Service Manual

Table 1- 4: Amplitude

Characteristics Description

Reference level

Reference level setting range Baseband: --30 to +20 dBm (5 dB step)

RF: --50 to +30 dBm (1 dB step)
Option 03 IQ input: --10 to +20 dBm (5 dB step)

Accuracy (--10 to --50 dBm) ±0.2 dB (at 100 MHz, 10 dB attenuation, 20 to 30 _C)

Frequency response (RF attenuation≥10 dB)

at 20 to 30 _C ±0.5dB(100kHzto40MHz)

±1.2 dB (40 MHz to 3.5 GHz)
±1.7 dB (3.5 GHz to 6.5 GHz)
±1.7dB(5GHzto8GHz)

Typi cal ±0.3dB(100kHzto40MHz)

±0.5 dB (40 MHz to 3.5 GHz)
±1.0 dB (3.5 GHz to 6.5 GHz)
±1.0dB(5GHzto8GHz)

at 10 to 40 _C ±0.7dB(100kHzto40MHz)

±1.5 dB (40 MHz to 3.5 GHz)
±2.0 dB (3.5 GHz to 6.5 GHz)
±2.0dB(5GHzto8GHz)

n Absolute amplitude accuracy

at calibration point (20 to 30 _C)

n Input attenuator setting uncertainty

n Level linearity in display range

Baseband: ±0.3 dB (at 25 MHz, --10 dBm signal)
RF: ±0.5 dB (at 100 MHz, --20 dBm signal, 0 dB attenuation)

±0.2 dB (at 100 MHz)

±0.2dB(0to--50dBfs);±0.12 dB (0 to --50 dBfs, Typical)

Specifications

RSA3408A Service Manual

1- 5

Specifications

Table 1- 5: Spurious response

Characteristics Description

1 dB compression input +2 dBm (RF attenuation = 0 dB, 2 GHz)

2ndharmonic distortion
(--30 dBm tone at input mixer)

3rdorder intermodulation distortion (Reference level = +5 dBm, RF attenuation adjusted optimally, Total signal power = --7 dBm)

n Center frequency = 2 GHz

100 MHz to 3 GHz --75 dBc

3GHzto8GHz --72 dBc

n Displayed average noise level

Local feed-through to input connecter

(Typical)

Image Suppression (Typical)

1stIF 75 dB (40 MHz to 3.5 GHz)

2ndand 3rdIF 80 dB (40 MHz to 3.5 GHz)

Alias suppression (Typical) 65 dB (DC to 40 MHz)

--65 dBc (10 MHz to 1400 MHz)

--70 dBc (1400 MHz to 1750 MHz)

--78 dBc

--144 dBm/Hz (1 kHz to 10 kHz)

--151 dBm/Hz (10 kHz to 10 MHz)

--151 dBm/Hz (10 MHz to 100 MHz)

--150 dBm/Hz (100 MHz to 1 GHz)

--150 dBm/Hz (1 GHz to 2 GHz)

--150 dBm/Hz (2 GHz to 3 GHz)

--142 dBm/Hz (3 GHz to 5 GHz)

--142 dBm/Hz (5 GHz to 8 GHz)

--40 dBm (local frequency 4.2 to 5 GHz)

--55 dBm (local frequency 5 to 6 GHz)

--60 dBm (local frequency 6 to 7 GHz)

--60 dBm (local frequency 7 to 7.7 GHz)

70 dB (3.5 GHz to 8 GHz)

75 dB (3.5 GHz to 8 GHz)

n Residual response (Reference level = --30 dBm, RBW = 100 kHz)

Baseband, 1 to 40 MHz --93 dBm (Span = 40 MHz)

RF1, 0.5 to 3.5 GHz --90 dBm (Span = 3 GHz)

RF2, 3.5 to 6.5 GHz --85 dBm (Span = 3 GHz)

RF3,5to8GHz --85 dBm (Span = 3 GHz)

n Spurious response (Span = 10 MHz, Reference level = 0 dBm, RBW = 50 kHz)

Baseband, 25 MHz --73 dBc (Signal frequency = 25 MHz, Signal level = --5 dBm)

RF1, 2 GHz --73 dBc (Signal frequency = 2 GHz, Signal level = --5 dBm)

RF2, 5 GHz --70 dBc (Signal frequency = 5 GHz, Signal level = --5 dBm)

RF3, 7 GHz --70 dBc (Signal frequency = 7 GHz, Signal level = --5 dBm)

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RSA3408A Service Manual

Table 1- 6: Acquisition

Characteristics Description

Real-time capture bandwidth Baseband: 40 MHz; RF: 36 MHz; IQ: 40 MHz (Option 03 only)

A/D converter 14 bits, 102.4 Msps

Sampling rate (Real Time S/A, Demod, and Time modes)

40 MHz span (Baseband) 51.2 Msps

40 MHz span (IQ, Option 03) 51.2 Msps

36 MHz span (RF) 51.2 Msps

20 MHz span 25.6 Msps

10 MHz span 12.8 Msps

5 MHz span 6.4 Msps

2 MHz span 2.56 Msps

1 MHz span 1.28 Msps

500 kHz span 640 ksps

200 kHz span 256 ksps

100 kHz span 128 ksps

50 kHz span 64 ksps

20 kHz span 25.6 ksps

10 kHz span 12.8 ksps

5 kHz span 6.4 ksps

2 kHz span 2.56 ksps

1 kHz span 1.28 ksps

500 Hz span 640 sps

200 Hz span 256 sps

100 Hz span 128 sps

Acquisition length
(Real Time S/A, Demod, and Time modes)

Acquisition length setting resolution 1024 samples (Real Time S/A, Demod, and Time modes)

Acquisition memory size Standard: 64 MB; Option 02: 256 MB

Minimum: 1024 samples
Maximum: 16,384,000 samples (Standard); 65,536,000 samples (Option 02)

Specifications

RSA3408A Service Manual

1- 7

Specifications

Table 1- 7: Trigger

Characteristics Description

Trigger mode Free run, Triggered

Trigger event source Power (Span BW), Frequency mask (Option 02), External

Pre/Post trigger setting Trigger position can be set from 0 to 100% of total data length.

Power trigger 0to--40dBfs

Frequency mask trigger (Option 02)

Mask resolution 1bin

Level range 0to--60dBfs

Real-time event detection bandwidth Baseband: 40 MHz (1024 point FFT, 50% overlapping)

RF: 36 MHz (1024 point FFT, 50% overlapping)

External trigger

Threshold voltage --1.5 V to +1.5 V adjustable

Setting Resolution 0.1 V

Input impedance >2 kΩ

Trigger output voltage High: >2.0 V, Low: <0.4 V (output current <1 mA)

Trigger marker position timing uncertainty ±2 sample points (Power/External trigger)

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RSA3408A Service Manual

Table 1- 8: RBW (Resolution Bandwidth)

Characteristics Description

Filter shape Gaussian, Rectangle, Root Nyquist

Setting range 1Hzto10MHz

Minimum settable RBW (extended resolution on)

Span >2 GHz 100 kHz

1 GHz< Span ≤2GHz 50 kHz

500 MHz< Span ≤1GHz 20 kHz

20 MHz< Span ≤500 MHz 10 kHz

500 kHz< Span ≤20 MHz 1kHz

200 kHz < Span ≤500 kHz 500 Hz

100 kHz < Span ≤200 kHz 200 Hz

50 kHz < Span ≤100 kHz 100 Hz

20 kHz < Span ≤50 kHz 50 Hz

10 kHz < Span ≤20 kHz 20 Hz

5 kHz < Span ≤10 kHz 10 Hz

2 kHz < Span ≤5kHz 5Hz

1 kHz < Span ≤2kHz 2Hz

100 Hz ≤ Span ≤1kHz 1Hz

Specifications

Table 1- 9: Trace and display line

Characteristics Description

Number of traces 2

Trace type Normal, Average, Max Hold, Min Hold

Display detector Positive peak, Negative peak, and Positive-Negative peak

Display line Horizontal line 1 and 2, Vertical line 1 and 2

RSA3408A Service Manual

1- 9

Specifications

Table 1- 10: Display

Characteristics Description

Views

S/A mode Spectrum

S/A with Spectrogram mode Spectrum and Spectrogram

Real TIme S/A mode Spectrum and Spectrogram

Analog Demod mode Overview: Power versus Time/Spectrogram

Subview: Spectrum
Main view: Measurement Results

Time mode Overview: Power versus Time/Spectrogram

Subview: Spectrum
Main view: Measurement results

LCD

Size 213 mm (8.4 in)

Resolution 800 × 600 pixels

Color Maximum 256 colors

Table 1- 11: Measurement function

Characteristics Description

S/A mode Channel power, Adjacent channel power ratio, Occupied bandwidth,

Emission bandwidth, Carrier to Noise ratio, Carrier frequency, Spurious

Analog Demod mode I/Q versus Time, AM depth, FM deviation, PM deviation

Time mode I/Q versus Time, Power versus Time, Frequency versus Time, CCDF

Table 1- 12: Analog demodulation accuracy

Characteristics Description

Accuracy (Typical)

AM demodulation ±2% (--10 dBfs input at center, 10 to 60% modulation depth)

PM demodulation ±3° (--10 dBfs input at center)

FM demodulation ±1% of span (--10 dBfs input at center)

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RSA3408A Service Manual

Specifications

Table 1- 13: Pulse measurement

Characteristics Description

Measurement functions Pulse width, Pulse peak power, On/Off ratio, Pulse ripple, Pulse repetition interval,

Duty cycle, Pulse-Pulse phase, Channel power, OBW, EBW, Frequency deviation

Pulse length Minimum 20 samples; Maximum 260,000 samples

Table 1- 14: Digital demodulation (Option 21 only)

Characteristics Description

Demodulator

Carrier type Continuous and Burst

Modulation format BPSK, QPSK, π/4 shift DQPSK, OQPSK, 8PSK, 16QAM, 64QAM, 256QAM,

GMSK, GFSK, ASK, FSK

Measurement filter Root cosine

Reference filter Cosine, Gauss

Filter parameter α/BT: 0.0001 to 1, 0.0001 step

Maximum symbol rate 51.2 Msps

Standard setup PDC, PHS, NADC, TETRA, GSM, CDPD, and Bluetooth

Measurement functions Constellation, EVM, I/Q versus Time, Eye diagram, Symbol table,

AM/AM, AM/PM, CCDF, PDF

Display format

Vector diagram Symbol/Locus display, Frequency error measurement, and Origin offset measurement

Constellation diagram Symbol display, Frequency error measurement, and Origin offset measurement

Eye diagram I, Q, and Trellis displays ( 1 to 16 symbols )

Error vector diagram EVM, Magnitude error , Phase error, Waveform quality (ρ) measurement,

Frequency error measurement, and Origin offset measurement

Symbol table Binary, Octal, Hexadecimal

AM/AM Measured amplitude versus Reference amplitude

1 dB compression measurement

AM/PM Phase error versus Reference amplitude

CCDF Probability of exceed versus Power level, Crest factor measurement

PDF Probability of occurrence versus Power level

RSA3408A Service Manual

1- 11

Specifications

Table 1- 14: Digital demodulation (Option 21 only) (Cont.)

Characteristics Description

Accuracy

QPSK EVM EVM (Typical) Symbol rate

Center frequency = 1 GHz 0.5%

0.5%

0.6%

0.9%

1.6%

Center frequency = 2 GHz 0.5%

0.5%

0.6%

0.9%

1.8%

Center frequency = 3 GHz 0.5%

0.5%

0.6%

0.9%

1.8%

Center frequency = 5 GHz 0.7%

0.7%

0.9%

1.6%

2.4%

π/4 DQPSK EVM EVM (Typical) Symbol rate

Center frequency = 1 GHz 0.6%

0.6%

0.6%

0.9%

1.8%

Center frequency = 2 GHz 0.6%

0.6%

0.6%

0.9%

1.8%

Center frequency = 3 GHz 0.6%

0.6%

0.6%

0.9%

1.8%

Center frequency = 5 GHz 0.7%

0.7%

0.9%

1.6%

2.4%

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

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RSA3408A Service Manual

Table 1- 14: Digital demodulation (Option 21 only) (Cont.)

Characteristics Description

16/64QAM EVM EVM (Typical) Symbol rate

Center frequency = 1 GHz 0.5%

0.5%

0.5%

0.7%

1.2%

Center frequency = 2 GHz 0.5%

0.5%

0.5%

0.7%

1.2%

Center frequency = 3 GHz 0.5%

0.5%

0.5%

0.7%

1.2%

Center frequency = 5 GHz 0.9%

0.5%

0.7%

1.3%

2.0%

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

100 kHz
1MHz
4MHz
10 MHz
20 MHz

Specifications

Table 1- 15: ACLR measurement (Option 27)

Characteristics Description

ACLR (3GPP down link, Test model 1, 16 ch, 1800 to 2200 MHz carrier frequency)

Real-Time measurement 66 dB (5 MHz offset)

68 dB (10 MHz offset)

Sweep measurement with noise correction

(Typical)

68 dB (5 MHz offset)
70 dB (10 MHz offset)

Table 1- 16: Wireless LAN measurement (Option 29)

Characteristics Description

Residual EVM (Typical)

IEEE 802.11a/g, 54 Mbps OFDM ≤--44 dB (center frequency = 2.447 GHz)

≤--42 dB (center frequency = 5.5 GHz)

IEEE 802.11b, 11 Mbps CCK ≤0.7% (center frequency = 2.447 GHz)

RSA3408A Service Manual

1- 13

Specifications

Table 1- 17: Controller

Characteristics Description

Controller

CPU Intel Celeron 1.2 GHz

DRAM 512 MB DIMM

OS Windows XP

System bus PCI

Storage medium

Hard disk ≥40 GB, 2.5 inch IDE

Floppy disk 1.44 MB 3.5 inch

Interface

Printer port USB

GPIB IEEE 488.2

LAN 10/100 BASE-T (IEEE 802.3)

Mouse USB

Keyboard USB

Monitor out VGA (D-SUB 15 pins)

Table 1- 18: External output connector

Characteristics Description

Preamp power connector

Connector type LEMO 6 poles

Pin assignment Pin1:NC,Pin2:ID1,Pin3:ID2,Pin4:--12V,Pin5:GND,Pin6:+12V

Digital I/Q output (Option 05)

Connector type MDR (3M) 50 pins × 2

Pin assignment Refer to page 1--19.

Data output I data: 16-bit LVDS; Q data: 16-bit LVDS

Control output Clock: LVDS, max 51.2 MHz; Data valid: LVDS, not used

Control input Output enable: Connecting GND enables output

Setup time >5 ns (data transition to clock rising edge). See Figure 1--1.

Hold time >5 ns (clock rising edge to data transition). See Figure 1--1.

Flatness of output data before correction

Amplitude +1/--5 dB (36 MHz span); +1/--2 dB (20 MHz span)

Phase ±100_ (36 MHz span); ±15_ (20 MHz span)

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RSA3408A Service Manual

Setup time Hold time

Specifications

Data
(EXT_I*/EXT_Q*)

Clock
(EXT_IQ_CLK)

Valid Invalid

Figure 1- 1: Definition of the setup and hold time

Table 1- 19: Power requirements

Characteristics Description

Rating voltage 100 to 240 VAC

Voltage range 90 to 250 VAC

Line frequency 47 to 63 Hz

Mains Fuse Data Densei--Lambda supplies: 5 A, Time--delayed, 250 V (not operator replaceable)

Cosel supply: 2 A, Time--delayed, 250 V (not operator replaceable)

Heat dissipation

Maximum power 400 VA

Maximum line current 5Armsat50Hz(90Vlinewith5%clipping)

Surge current Maximum 52 A peak (25 _C) for ≤5 line cycles after the product has been turned off

foratleast30s.

RSA3408A Service Manual

1- 15

Specifications

Physical Characteristics

Table 1- 20: Physical characteristics

Characteristics Description

Dimensions

Width 425 mm (16.7 in) without belts

Height 215 mm (8.5 in) without feet

Depth 425 mm (16.7 in) without cover and feet

Net weight 20 kg

Environmental Characteristics

Table 1- 21: Environmental characteristics

Characteristics Description

Temperature

Operating +10to+40_C

Nonoperating -- 2 0 t o + 6 0 _C

Relative humidity

Operating and nonoperating 20 to 80% (no condensation), maximum wet-bulb temperature 29 _C

Altitude

Operating Up to 3000 m (10000 ft)

Nonoperating Up to 12000 m (40000 ft)

Vibration

Operating 2.65 m/s2rms (0.27 G rms), 5 to 500 Hz

Nonoperating 22.3 m/s2rms (2.28 G rms), 5 to 500 Hz

Shock

Nonoperating 196 m/s2(20 G), half-sine, 11 ms duration

Three shocks in each direction along each major axis, total of 18 shocks

Cooling clearance

Bottom 20 mm (0.79 in)

Both sides 50 mm (1.97 in)

Rear 50 mm (1.97 in)

1- 16

RSA3408A Service Manual

Specifications

Table 1- 22: Certifications and compliances

Characteristic Description

EC Declaration of Conformity -- EMC Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance

was demonstrated to the following specifications as listed in the Official Journal of the
European Communities:

EN 61326 EMC requirements for Class A electrical equipment for

measurement, control and laboratory use.

1

IEC 61000-4-2 Electrostatic discharge immunity

(Performance criterion B)

IEC 61000-4-3 RF electromagnetic field immunity

(Performance criterion A)

IEC 61000-4-4 Electrical fast transient / burst immunity

(Performance criterion B)

IEC 61000-4-5 Power line surge immunity

(Performance criterion B)

IEC 61000-4-6 Conducted RF immunity

(Performance criterion A)

IEC 61000-4-11 Voltage dips and interruptions immunity

(Performance criterion B)

EN 61000-3-2 AC power line harmonic emissions
EN 61000-3-3 Power line voltage fluctuation/flicker

Australia/New Zealand Declaration of
Conformity -- EMC

Complies with EMC provision of Radiocommunications Act per the following
standard(s):

AS/NZS 2064.1/2 Industrial, Scientific, and Medical Equipment: 1992

EC Declaration of Conformity -- Low Voltage Compliance was demonstrated to the following specification as listed in the Official

Journal of the European Union:

Low Voltage Directive 73/23/EEC, amended by 93/68/EEC

EN 61010-1:2001 Safety requirements for electrical equipment for

measurement control and laboratory use.

U.S. Nationally Recognized Testing Laboratory

UL61010-1 Standard for electrical measuring and test equipment.

Listing

Canadian Certification CAN/CSA C22.2 No. 61010-1-04

CSA safety requirements for electrical and electronic
measuring and test equipment.

Additional Compliance ANSI/ISA 82.02.01:2004 Safety standard for electrical and electronic test,

measuring, controlling, and related equipment.

IEC61010-1 Safety requirements for electrical equipment for

measurement, control, and laboratory use.

1

Emissions which exceed the levels required by this standard may occur when this equipment is connected to
a test object.

RSA3408A Service Manual

1- 17

Specifications

Table 1- 22: Certifications and compliances (Cont.)

Characteristic Description

Overvoltage Category Description Terminals on this product may have different installation (overvoltage) category

designations. The installation categories are:

CAT III Distribution-level mains (usually permanently connected). Equipment at this

level is typically in a fixed industrial location.

CAT II Local-level mains (wall sockets). Equipment at this level includes

appliances, portable tools, and similar products. Equipment is usually
cord-connected.

CAT I Secondary (signal level) or battery operated circuits of electronic equipment.

Overvoltage Category Overvoltage Category II (as defined in IEC61010-1)

Pollution Degree Description A measure of the contaminates that could occur in the environment around and within

a product. Typically the internal environment inside a product is considered to be the
same as the external. Products should be used only in the environment for which they
are rated.

Pollution Degree 1 No pollution or only dry, nonconductive pollution occurs.

Products in this category are generally encapsulated,
hermetically sealed, or located in clean rooms.

Pollution Degree 2 Normally only dry, nonconductive pollution occurs.

Occasionally a temporary conductivity that is caused by
condensation must be expected. This location is a
typical office/home environment. Temporary
condensation occurs only when the product is out of
service.

Pollution Degree 3 Conductive pollution, or dry, nonconductive pollution that

becomes conductive due to condensation. These are
sheltered locations where neither temperature nor
humidity is controlled. The area is protected from direct
sunshine, rain, or direct wind.

Pollution Degree 4 Pollution that generates persistent conductivity through

conductive dust, rain, or snow. Typical outdoor locations.

Pollution Degree Pollution Degree 2 (as defined in IEC61010-1). Note: Rated for indoor use only.

Safety Certification Compliance

Equipment Type Test and measuring

Safety Class Class I (as defined in IEC61010-1) -- grounded product

Operating Temperature Range +5 to +40 _C

1- 18

RSA3408A Service Manual

Digital IQ Output Connector Pin Assignment (Option 05 Only)

Figure 1- 2: Digital IQ output connector pin assignment

Table 1- 23: I OUTPUT connector pin assignment

Specifications

125

2650

Pin number Signal name Description

1 IQ_ENABLE* IQ output enable signal input

Open: IQ output disable
Connect to GND: IQ output enable

26 GND Ground

2 GND Ground

27 GND

3 EXT_I0-- I output data (bit 0), LVDS

28 EXT_I0+

4 EXT_I1-- I output data (bit 1), LVDS

29 EXT_I1+

5 EXT_I2-- I output data (bit 2), LVDS

30 EXT_I2+

6 EXT_I3-- I output data (bit 3), LVDS

31 EXT_I3+

7 GND Ground

32 GND

8 EXT_I4-- I output data (bit 4), LVDS

RSA3408A Service Manual

33 EXT_I4+

9 EXT_I5-- I output data (bit 5), LVDS

34 EXT_I5+

1- 19

Specifications

Table 1- 23: I OUTPUT connector pin assignment (Cont.)

Pin number DescriptionSignal name

10 EXT_I6-- I output data (bit 6), LVDS

35 EXT_I6+

11 EXT_I7-- I output data (bit 7), LVDS

36 EXT_I7+

12 GND Ground

37 GND

13 EXT_I8-- I output data (bit 8), LVDS

38 EXT_I8+

14 EXT_I9-- I output data (bit 9), LVDS

39 EXT_I9+

15 EXT_I10-- I output data (bit 10), LVDS

40 EXT_I10+

16 EXT_I11-- I output data (bit 11), LVDS

41 EXT_I11+

17 GND Ground

42 GND

18 EXT_I12-- I output data (bit 12), LVDS

43 EXT_I12+

19 EXT_I13-- I output data (bit 13), LVDS

44 EXT_I13+

20 EXT_I14-- I output data (bit 14), LVDS

45 EXT_I14+

21 EXT_I15-- I output data (bit 15), LVDS

46 EXT_I15+

22 GND Ground

47 GND

23 GND

48 GND

24 EXT_IQ_DAV-- Not used

1- 20

49 EXT_IQ_DAV+

25 EXT_IQ_CLK-- IQ output clock, LVDS

50 EXT_IQ_CLK+

RSA3408A Service Manual

Table 1- 24: Q OUTPUT connector pin assignment

Pin number Signal name Description

1 IQ_ENABLE* IQ output enable signal input

Open: IQ output disable
Connect to GND: IQ output enable

26 GND Ground

2 GND Ground

27 GND

3 EXT_Q0-- Q output data (bit 0), LVDS

28 EXT_Q0+

4 EXT_Q1-- Q output data (bit 1), LVDS

29 EXT_Q1+

5 EXT_Q2-- Q output data (bit 2), LVDS

30 EXT_Q2+

Specifications

6 EXT_Q3-- Q output data (bit 3), LVDS

31 EXT_Q3+

7 GND Ground

32 GND

8 EXT_Q4-- Q output data (bit 4), LVDS

33 EXT_Q4+

9 EXT_Q5-- Q output data (bit 5), LVDS

34 EXT_Q5+

10 EXT_Q6-- Q output data (bit 6), LVDS

35 EXT_Q6+

11 EXT_Q7-- Q output data (bit 7), LVDS

36 EXT_Q7+

12 GND Ground

37 GND

13 EXT_Q8-- Q output data (bit 8), LVDS

38 EXT_Q8+

14 EXT_Q9-- Q output data (bit 9), LVDS

RSA3408A Service Manual

39 EXT_Q9+

15 EXT_Q10-- Q output data (bit 10), LVDS

40 EXT_Q10+

1- 21

Specifications

Table 1- 24: Q OUTPUT connector pin assignment (Cont.)

Pin number DescriptionSignal name

16 EXT_Q11-- Q output data (bit 11), LVDS

41 EXT_Q11+

17 GND Ground

42 GND

18 EXT_Q12-- Q output data (bit 12), LVDS

43 EXT_Q12+

19 EXT_Q13-- Q output data (bit 13), LVDS

44 EXT_Q13+

20 EXT_Q14-- Q output data (bit 14), LVDS

45 EXT_Q14+

21 EXT_Q15-- Q output data (bit 15), LVDS

46 EXT_Q15+

22 GND Ground

47 GND

23 GND

48 GND

24 NC Not used

49 NC

25 NC

50 NC

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RSA3408A Service Manual

Operating Information

The operating information for this instrument is available in the RSA3408A User
Manual (Tektronix part number 071-1617-xx) that shipped with your product.

RSA3408A Service Manual

2- 1

Operating Information

2- 2

RSA3408A Service Manual

Theory of Operation

This section describes the electrical operation of the RSA3408A analyzer using
the major circuit blocks or modules shown in Figure 9--1 on page 9--3.

RF Input

The RF input circuit block consists of a relay for signal switching (Input Relay),
Step Attenuator, P rogrammable Bandpass F ilter, and a control circuit for these
components. This block adjusts the level of input signal as appropriate in
accordance with reference level settings, and sends the signal to the 1

Input Relay located just after the RF INPUT connector is for calibration signal
switching. It switches t o pass the internal calibration signal when self gain-cal­ibration or IF flatness calibration is selected. The step attenuator that follows is a
programmable attenuator of 5 dB/step. It attenuates an input signal up to 55 dB .
Band Relay switches signal paths between the RF1 band and the RF2/RF3 band.

In the RF2 and RF3 bands, bandwidth of the signal is limited by the Program­mable Bandpass Filter (BPF) to avoid occurrence of images and/or spurious
signals. This Programmable BPF is able to adjust its center frequency in the
range of 3.5 GHz to 8 GHz, and adjustment to the center frequency is achieved
with the current output from the A100 Cal Generator board. In a same way, the
attenuator and relays are controlled with currents from the A100 board.

st

converter.

Down Converter

RF3 Module

RSA3408A Service Manual

On the A100 Cal Generator board, various components are installed, such as: a
group of registers to save the setup data from Hardware Controller, driver
circuits for attenuator and relays, D/A converter circuit for generation of tuning
current to Programmable BPF, ALC circuit to maintain the amplitude of the
calibration signal at a constant level, IQ modulator for IF flatness calibration,
and other components.

The RF3 module contains the 1stConverter, 1stLocal Oscillator, 1stIF Amplifi­er, and other components. After level adjustment in the RF input circuit, the
input signal is applied to the 1
signal is frequency-converted into 1
Oscillation frequency of 1
(RF4 module) in this case, so that 1
mately 4231 MHz. After this, the 1
Amplifier that has a gain of approximately 17 dB, and is sent to the 2
Converter (RF2 module).

st

Converter. Mixed with 1stLO signal, the input

st

st

Local Oscillator is controlled with a synthesizer

IF signal of approximately 4231 MHz.

st

IF signal is always maintained at approxi-

st

IF signal passes through the 1stIF

nd

3- 1

Theory of Operation

st

In the baseband, an input signal enters the 1

Converter. Then the signal path i s
switched with a relay and the signal is sent directly to the A10 A/D board for
A/D conversion. In the RF1 band, an input signal goes through all converters

st,2nd

(1
frequency-converted by the 1
421 MHz, then sent directly to the 3

, and 3rd). In the RF2 and RF3 bands, an input signal is directly

st

Converter into the 2ndIF signal of approximately

rd

Converter, bypassing the 2ndConverter.

RF2 Module

RF5 Module

The RF2 module consists of the 2

st

Oscillator (LO). The 1

IF signal sent from the 1stConverter passes through a

nd

Converter, 2ndIF Filter, and 2ndLocal

Bandpass Filter and a Lowpass Filter for removal of unnecessary frequency
bands. After this, the 1

st

the 1
the 2

IF signal is mixed with the 2ndLO signal and frequency-converted into

nd

IF signal of approximately 421 MHz.

st

IF signal enters the 2ndConverter. In the 2ndConverter,

Thesameistrueof1stLO; the 2ndLO frequency is controlled by a synthesizer

nd

circuit (RF4 module) to stabilize the LO output frequency. The 2

nd

sent to the 2

IF Filter, which has two filters with the pass bandwidth of

IF signal is

40 MHz and 4 MHz, respectively.

The RF5 module consists of the 3

rd

converter, the signal is mixed with the 3rdLO signal and then frequency-con-

3
verted into the 3

rd

IF signal of 76 MHz normally, which is changed to 39 MHz in

rd

Converter and the 3rdIF Gain block. In the

an ACLR measurement with the sweep mode. In the RF2 and RF3 bands, the 2
IF signal from the RF2 module enters the band switching relay i n the input

rd

section of the 3

Converter.

The 3rdIF Gain block consists of a Step Amplifier of 12 dB/step with the
maximum gain of 60 dB and a Step Attenuator with the maximum attenuation of

rd

31 dB. This block maintains t he 3

IF signal to be sent to A/D Converter at an

appropriate level, and adjusts the accuracy of conversion gain.

nd

3- 2

RF6 Module

The RF6 module consists of the 3
10 MHz Reference Oscillator. The 3

rd

IF Filter block, Oscillator block, and

rd

IF signal enters the 3rdIF Filter containing
two filters with the pass bandwidth of 40 MHz for 76 MHz IF and 1.2 MHz for
38 MHz IF, respectively, which are software-selectable.

The Oscillator block contains the 3

rd

local oscillator with the local frequency of

345 MHz for 76 MHz IF or 383 MHz for 38 MHz IF, and A/D clock with the

rd

clock frequency of 102.4 MHz. Both the 3

LO signal and A/D clock signal

generated in the Oscillator block are highly stabilized signals locked with a

rd

10 MHz reference signal, and are output to the 3

Converter and A10 A/D

board, respectively.

RSA3408A Service Manual

Theory of Operation

The 10 MHz Reference Oscillator is configured around an OCXO (Oven
Controlled Crystal Oscillator) with extremely high frequency stability. It is used
as the reference clock source for all the oscillators including the frequency
synthesizer circuits. Circuits such as the input circuit of external 10 MHz
reference signal, internal/external reference switching circuit, and 10 MHz
reference output circuit are also contained in the RF6 module.

RF4 Module

The RF4 module is comprised of synthesizer circuits. The synthesizer consists of
multiple PLL Oscillator units of low noise type locked with the 10 MHz
reference signal. By changing the oscillation frequency of these PLL Oscillator
in fine steps, 1
while maintaining a good level of C/N.

The synthesizer also contains a circuit for generation of a 400 MHz signal to be
used as the reference for the calibration signal, PLL circuitry of the 2
Oscillator, a circuit for generation of DDS signal to be used as the reference
signal for the 3

Digital Signal Processing

A10 A/D Board

Analog signals such as the IF signal sent from the Down Converter block are
converted into digital format with a high-speed, high-accuracy A/D converter,
and sent to the A40 DIFP board via the A50 Mother board. The A/D board
contains input circuits for three analog signals: IF signal, baseband signal, and
external IQ signal (optional). Each input circuit is equipped with a B uffer
Amplifier, a Step Amplifier, and a Step Attenuator to maintain the signal level as
appropriate, as well as a Lowpass Filter for removal of signal components within
unnecessary frequency bands.

st

LO frequency can be tuned in the range of 4 GHz to 8 GHz

nd

rd

Local Oscillator, and other components.

Local

A40 DIFP Board

RSA3408A Service Manual

The A40 DIFP (Digital IF Processor) board consists of an IQ Splitter, Digital
Filters, Trigger Detector, and Acquisition Memory. After being converted into
digital format in the A10 A/D board, the input signal is split into I and Q signals
by the IQ Splitter. At the same time, I/Q signals are frequency-shifted so that
each of them occupies a frequency band centered at frequency zero point (DC).
I/Q signals output from IQ Splitter are sent to the Digital Filters. In these filters,
bandwidth of these signals is limited corresponding with span settings. In
addition, re-sampling is performed to achieve the higher frequency resolution.
I/Q signals output from the Digital Filters are sent t o the Trigger Detector and
Acquisition Memory.

3- 3

Theory of Operation

The Trigger Detector achieves real-time frequency trigger function. When the
Frequency Mask Trigger function is activated, window function operation is
executed to the input signal first. To accelerate the operation, data are divided
into two groups: the odd frame data and the even frame data. With pipeline-con­nected FFT processors, real-time FFT is applied t o these groups of data. After
being converted into frequency domain, the data are further converted into the
power domain with a pipeline-connected quadrature-to-polar coordinates
converter. After comparison with the reference data, the trigger board outputs the
trigger detect signal. When the Power Trigger function is activated, window
function operation and FF T operation mentioned above are bypassed. The data of
the time domain are converted into the power domain and sent to Trigger
Comparator .

The Acquisition Memory saves time domain data separated into I and Q signals.
The A40 DIFP board also interfaces between the data block and Windows
system. I/Q data output from the digital filter is saved to the dual port SRAM,
and then transferred to SDRAM as a block of data. The memory block of
SDRAM is also connected to the PCI local bus via a different dual port SRAM.
This allows the Windows system to refer to the contents copied to this dual port
SRAM as the data on the PCI memory space. The TRIG IN and OUT connectors
located on the rear panel are connected with this board. An external trigger signal
input is used, in addition, as the timing reference signal for the address control­ler. The A40 board also contains a microprocessor that controls various software
settings and various types of hardware as well as peripheral devices such as
ROM/RAM.

Power Supply

Power Supply 1 and 2

A70 DC Power Board

The power supply circuit consists of two units of AC/DC Converter (Power
Supply 1 and 2) energized from AC power line, and A70 DC power board,
which regulates the output voltages of AC/DC converter units and distributes the
regulated outputs to each of the boards and fans.

Note that P ower Supply 1 and 2 units have different output voltage specifica­tions. The Power Supply 1 output voltages are +5 V / +15 V / --15 V / +24 V; the
Power Supply 2 output voltages are +5 V / +12 V / --12 V / +3.3 V.

The A70 DC Power board is equipped with multiple DC/DC converters, and
based upon the output voltages supplied by the Power Supply 1 and 2 units,
power voltages other than above are generated on this board. On the A70 DC
Power board, LED indicators and test points are provided to facilitate checking
that all the power supply voltages are output normally.

3- 4

RSA3408A Service Manual

Theory of Operation

Standby Power and

On/Standby Switch

A50 Mother Board

External Interface

Power Supply 3 is the standby power supply unit which continuously supplies
power to some areas of the CPU board and the 10 MHz Reference Oscillator
even if the Power Switch on the main unit is turned off (standby mode). Unless
the Principal Power Switch (located on the rear panel) is turned off, Power
Supply 3 continues to output power voltages. Because of this, remove AC power
before opening the enclosure to service inside the unit.

The Standby Power Supply always maintains the ACP I (power control) function
for the CPU board to be active. With this function, the CPU board recognizes the
On status of the On/Standby Switch even in t he power-off condition and is able
to output the power-on signal to Power Supply 1 and 2 units. To enable accurate
high frequency measurements just after power-on, power is also supplied to the
10 MHz Oscillator (OCXO) from Standby Power Supply unit.

The A50 Mother board distributes power to all boards and modules, as well as
interfacing of control signals and data with the CPU. Other devices such as the
PCI Bridge, Local Bus Controller, GPIB Control Circuit, and Bus Buffer for
CPU bus expansion are also on the A50 Mother board.

A60 Front Key Board

A62 Front Connection

Board

A microprocessor for key control is installed on the A60 Front Key board.
Various processes such as serial conversion of key scan, key code, and signal
transmission to the CPU board are performed on this board.

The A62 Front Connection board interfaces with peripheral devices such as hard
disk drive, floppy disk drive, LCD (Liquid Crystal Display), USB, and keys with
the CPU board.

RSA3408A Service Manual

3- 5

Theory of Operation

3- 6

RSA3408A Service Manual

Performance Verification Procedures

Two types of Performance Verification procedures can be performed on this
product; Brief Procedures and Performance Tests. You may not need to perform
all of these procedures, depending on what you want to accomplish.

H To rapidly confirm that the analyzer functions properly and was adjusted

properly, do the brief procedures under Functional Tests and Diagnostics,
which begin on page 4--3.

Advantages: These procedures are quick to do, require no external
equipment or signal sources, and perform functional and accuracy testing to
provide high confidence that the analyzer will perform properly. They can be
used as a quick check before making a series of important measurements.

H If more extensive confirmation of performance is desired, do the Perfor-

mance Tests, beginning on page 4--9, after doing the Functional Tests and
Diagnostics just referenced.

Advantages: These procedures add direct checking of warranted specifica­tions.

Disadvantages: They require more time to perform and suitable test
equipment is required. (Refer to Equipment Required on page 4--10.)

RSA3408A Service Manual

4- 1

Performance Verification Procedures

Conventions

Throughout these procedures, the following conventions apply:

H Each test procedure uses the following general format:

H Each procedure consists of as many steps, substeps, and subparts as required

1. First Step

Title of Test

Equipment Required

Prerequisites

Procedure

to do the test. S t eps, substeps, and subparts are sequenced as follows:

a. First Substep

H First Subpart

H Second Subpart

b. Second Substep

2. Second Step

H Instructions for menu selection follow this format:

FRONTPANELKEY> Side Menu Key > Submenu Key.
For example, “Press MODE: DEMOD > Digital Demod > Constellation”.
“MODE: DEMOD” indicates the DEMOD key in the MODE menu area on
the front panel.

H In steps and substeps, the lead-in statement in italics tells you what to do,

and the instructions that follow tell you how to do it.
The example step below i s telling you to set the analyzer controls by
pressing the specified key sequence.

Set the RSA3408A analyzer controls:

Press MODE: DEMOD > Digital Demod > Constellation.

STOP. “STOP” is accompanied by information you must read to do the
procedure properly.

4- 2

RSA3408A Service Manual

Brief Procedures

The Functional Tests use the internal calibration signal as a test-signal source for
further verifying that the analyzer functions properly.

The Diagnostics use internal routines to verify that the instrument functions
properly and passes the internal circuit tests.

The Functional Tests begin on page 4--4 and the Diagnostics procedures are on
page 4--8.

RSA3408A Service Manual

4- 3

Brief Procedures

Functional Tests

The analyzer has a built-in calibration signal source with an amplitude of
approximately --20 dBm and frequency of 100 MHz. Using this source, perform
this quick functional check to verify that your instrument is operating correctly.

Equipment
Required

Prerequisites Power on the analyzer and allow a 20 minute warm-up before doing

1. Initialize the analyzer:

a. Press the SYSTEM key on the front panel.

b. Press the Reset All to Factory Defaults side key.

2. Check the system version and options:

a. Press the SYSTEM key on the front panel.

b. Press the Versions and Installed Options... side key.

c. Check the version in the “Main System” field and the options in the

option table.

3. Check the display brightness:

a. Press the Cancel--Back (top) side key.

b. Press the Display Brightness side key.

None

this procedure.

4- 4

c. Change the value from 0 to 100% using the general purpose knob to

check that the brightness changes normally.

4. Display spectrum of the calibration signal:

a. Press S/A > Spectrum Analyzer.

b. Press the PRESET key on the front panel to reset the analyzer.

c. Press INPUT > Signal Input Port... > Cal100M.

The spectrum of the calibration signal appears.

d. Check that “INPUT: CAL” and “FREE RUN” are displayed in the status

indicator at the upper right of the screen (see Figure 4--1).

RSA3408A Service Manual

Status indicator

Brief Procedures

Marker readout

Marker

Figure 4- 1: Spectrum of the calibration signal (100 MHz, - 20 dBm)

5. Check the center frequency and peak amplitude using the marker:

a. Press the PEAK key on the front panel to place the marker on the peak

(see Figure 4--1).

RSA3408A Service Manual

b. Check the marker readouts on screen. The frequency should be 100 MHz

and the amplitude should be approximately --20 dBm.

c. Press MARKER SETUP > Markers > Off.

Check that the marker disappears.

6. Check the RBW (Resolution Bandwidth) while changing the span setting.

a. Press the SPAN key on the front panel.

b. Confirm that the span is 36 MHz and the RBW is 100 kHz in the setup

display on t he upper part of the screen (see Figure 4--2).

4- 5

Brief Procedures

Setup display

Span RBW

Span setting

Figure 4- 2: Setup display

c. Using the general purpose knob, change the span setting as listed in

Table 4--1 and check that the RBW is displayed correctly.

Table 4- 1: Span and RBW

Span RBW

36 MHz 100 kHz

15 MHz 80 kHz

5MHz 20 kHz

100 kHz 500 Hz

1kHz 20 Hz

d. Using the numeric keypad, set the span back to 36 MHz.

(Press 3 > 6 > MHz, in that order, on the keypad.)

7. Check the reference level:

a. Press the AMPLITUDE key on the front panel.

b. Make sure that the reference level is set to 0 dBm with the Ref Level

side key. C heck that 0 dBm is displayed on the upper left side of the
graticule (see Figure 4--3).

c. Use the general purpose knob to set the reference level to --30 dBm.

d. Confirm that A/D OVERFLOW is indicated in the red box at the top

center of the screen. Make sure that --30 dBm is displayed on the upper
left side of the graticule and that the spectrum waveform is distorted as
shown in Figure 4--3.

e. Using the numeric keypad, set the reference l evel back to 0 dBm.

(Press 0 > ENTER, in that order, on the keypad.)

4- 6

RSA3408A Service Manual

Reference level

Brief Procedures

A/D overflow indicator Reference level setting

Figure 4- 3: Reference level setting and A/D overflow indicator

Spectrogram

8. Check the spectrogram display:

a. Press S/A > S/A with Spectrogram. Check that the spectrogram is

displayed on the lower side of the screen (see Figure 4--4).

RSA3408A Service Manual

Figure 4- 4: Spectrogram display

b. Press the RUN/STOP key on the front panel to stop data acquisition.

Confirm that the trace display freezes and PAUSE is displayed in the
status indicator at the top right of the screen.

4- 7

Brief Procedures

Diagnostics

You can run the internal diagnostic program to check hardware states.
Table 4--2 shows the test items and their descriptions.

Table 4- 2: Internal diagnostic program

Menu item Description Possible failure

Temp Sensor Checks that the temperature sensor works correctly. RF5 module

Data Memory Checks that the acquisition memory works correctly. A40 board

The process is

graphically displayed

on the upper views.

Equipment
Required

Prerequisites Power on the analyzer and allow a 20 minute warm-up before doing

None

this procedure.

1. Press CAL > Service... > Password.

2. Enter 270833 andthenpresstheENTER key on the numeric keypad.

3. Press the DIAG side key.

4. Select the diagnostic menu item to be executed.

You can press the All side key to run all the tests.

5. Check the result shown in the lower left view (“Pass” or “Fail”).

4- 8

Figure 4- 5: Diagnostic screen

RSA3408A Service Manual

Performance Tests

This section contains procedures for checking that the RSA3408A 8 GHz
Real-Time Spectrum Analyzer performs as warranted.

The procedures are arranged in five logical groupings:

H Auto Tests

H Frequency Checks

H Noise Sideband Checks

H Amplitude Checks

H Spurious Response Checks

They check all the characteristics that are designated as checked in Chapter 1,
Specifications. (The characteristics that are checked appear with the n symbol in
the Characteristics column in Chapter 1.) You can use the form at the end of this
section as a test record.

Read Performance Verification Procedures on page 4 --1 and 4--2. Also, if you are
not familiar with operating this analyzer, read the RSA3408A User Manual
before doing any of these procedures.

NOTE. These procedures extend the confidence level provided by the brief
procedures described on page 4--3. Perform the brief procedures first and then
perform the following procedures if desired.

RSA3408A Service Manual

4- 9

Performance Tests

Prerequisites

The tests in this section make up an extensive, valid confirmation of performance
and functionality when the following requirements are met:

H The cabinet must be installed on the analyzer.

H The instrument must have passed t he procedures under Brief Procedures

found on page 4--3.

H A signal-path compensation must have been done within the recommended

calibration interval and at a temperature within ±3 _C of the present
operating temperature. (If at the time you did the prerequisite Brief Proce-
dures, the temperature was within the limits just stated, consider this
prerequisite met.)

H The analyzer must have been last adjusted at an ambient temperature

between +20 _C and +30 _C, must have been operating for a warm-up
period of at least 20 minutes, and must be operating at an ambient tempera­ture of between +10 _C and +40 _C.

H The SG flatness/spurious floppy disk(s) (Item 16 in Table 4--3) must be

prepared. For the procedure to create or update the flatness and spurious
correction files, refer to Making Flatness Correction Files on page 5--6 and
Making Spurious Correction Files on page 5--13.

Equipment Required

These procedures use external, traceable signal sources to directly check
warranted characteristics. Table 4--3 shows the required equipment.

Table 4- 3: Test equipment

Item number and
description

1. Signal generator Frequency range: 10 kHz to 3.5 GHz;

2. Signal generator Frequency range: 10 MHz to 8 GHz;

3. Signal generator Frequency range: 1 MHz to 8 GHz;

Minimum requirements Example Purpose

V ariable amplitude from --70 dBm to
+13 dBm into 50 Ω;
Accuracy: <±1 dB; Function: FM

Output level: --30 dBm to +10 dBm;
Accuracy: <±1dB

Output level: --30 dBm to +10 dBm;
Accuracy: <±1dB

Agilent 8648D Checking flatness in

baseband and RF1

Agilent 83712B with
option 1E1

Agilent E8257D with
option 1E1 (option UNX
recommended)

Checking flatness in
RF2 and RF3

Checking flatness in all bands

4- 10

RSA3408A Service Manual

Table 4- 3: Test equipment (Cont.)

Item number and
description

Performance Tests

PurposeExampleMinimum requirements

4. Signal generator Frequency: 2 GHz; Output:
≥--10 dBm; Digital modulation: QPSK;
Symbol rate: 4.096 MS/s

5. Spectrum analyzer Frequency: >8 GHz;
Display scale fidelity: <±0.13 dB

6. Frequency counter Frequency range: 10 MHz;
Aging rate: <5×10
Accuracy: <0.01 ppm at 10 MHz

7. RF power meter 1MHzto8GHz Agilent E4418B Adjusting the signal generator

8. RF power sensor 10 MHz to 8 GHz; RF Flatness: <3%;
Uncertainty of calibration factor data:
<2% (RSS)

9. Power combiner Range: 500 MHz to 2 GHz; Isolation:
>18 dB; Insertion loss: <1.0 dB

10. BNC cable 50 Ω, 36 in, male-to-male BNC
connectors

11. N-N cable 50 Ω, 36 in, male-to-male N
connectors

12. N-SMA cable

(Three required)

13. GPIB cable

(Two required)

14. RF attenuator Ratio: 10 dB; impedance 50 Ω;

15. Terminator Impedance: 50 Ω; connectors: female

16. SG flatness/spurious

floppy disk (for each
signal generator used)

17. Mouse USB Standard accessary File operation

18. Keyboard USB Standard accessary File operation

50 Ω, 36 in, male N-to-male SMA
connectors

2m, double-shielded Tektronix part number

Bandwidth: >8 GHz

BNC input, male BNC output

Created or updated with the
procedures described on pages 5--6
and 5--13

-- 1 0

/day;

Rohde & Schwarz SMIQ03B
Agilent E4438C

Agilent E4440A Checking level linearity

Agilent 53132A with
option 010

Agilent E4412A Adjusting the signal generator

Mini-Circuits ZAPD-21 Checking intermodulation

Tektronix part number
012-1341-XX

012-0991-XX

Inmet 18N--10
Mini-Circuits BW--S10W2

Tektronix part number
011-0049-01

3.5 inch, 720 K or 1.44 MB,
DOS-compatible floppy disk

Checking intermodulation
distortion

Checking the reference out­put frequency accuracy

output level

output level

distortion

Signal interconnection

Signal interconnection

Signal interconnection

Software-based tests

Checking flatness

Signal termination for check­ing frequency accuracy

Storing flatness and spurious
correction data for the signal
generators (Items 1, 2, and 3)

RSA3408A Service Manual

4- 11

Performance Tests

Auto Tests

The auto tests use internal routines to verify specifications for the following
characteristics:

H Baseband flatness

H IF flatness

H RF flatness

H Spurious response

Use the service PV menu and procedure described below to set parameters and
perform the tests.

Service PV Menu

Selects the PV (performance verification) test items and bands. Access this menu
by pressing CAL > Service... > Password (270833) > PV (see Figure 4--6).

4- 12

Figure 4- 6: Auto test initial screen

The PV menu has the following controls:

PV Select. Selects the test items as shown in Table 4--4.

RSA3408A Service Manual

Performance Tests

Table 4- 4: Test item selection

PV Select

Test item All Spurious Other

Baseband flatness ✓ ✓

IF flatness ✓ ✓

RF flatness ✓ ✓

Spurious response ✓ ✓

NOTE. It takes several hours to perform the spurious test.

All Band. Performs the tests in all bands (Baseband, RF1, RF2, and RF3).
Measurement bandwidth: 1 MHz to 8 GHz

BB. Performs the tests in the baseband.
Measurement bandwidth: 1 MHz to 40 MHz

RF1. P erforms t he tests in the RF1 band.
Measurement bandwidth: 40 MHz to 3.5 GHz

BB+RF1. P erforms the tests in the baseband and RF1 band.
Measurement bandwidth: 1 MHz to 3.5 GHz

RF2+RF3. Performs the tests i n the RF 2 and RF3 band.
Measurement bandwidth: 3.5 GHz to 8 GHz

RF1+RF2+RF3. Performs the tests in the RF1, RF 2, and R F3 band.
Measurement bandwidth: 40 MHz to 8 GHz

Config... Sets the signal generator manufacturer and the GPIB address.

H SG Type. Selects the manufacturer of the generator for the GPIB command

system: HP or Anritsu.

RSA3408A Service Manual

NOTE. The HP setting also supports Agilent and Rohde & Schwarz products.

H GPIB Address. Sets the GPIB address of the generator.

4- 13

Performance Tests

STOP. Select either of these two procedures, depending on the signal genera­tor(s) you use:

H Procedure 1 below:

Uses one signal generator, Item 3 that covers all measurement bands
(Baseband, RF1, RF2, and RF3).

H Procedure 2 on page 4--16:

Uses two signal generators: Item 1 that covers the baseband and RF1 band
and Item 2 that covers the RF2 and RF3 bands.

Procedure 1

Performs the auto tests using one signal generator (Item 3) that covers all
measurement bands (Baseband, RF1, RF2, and RF3).

Equipment
Required

Prerequisites Refer to page 4--10

One signal generator (Item 3)

One 50 Ω N-N coaxial cable (Item 11)

One 10 dB attenuator (Item 14)

One GPIB cable (Item 13)

One SG flatness floppy disk (Item 16)

1. Prepare for the test: See the following figure for the hookup.

RSA3408A

Signal generator

GPIB cable

4- 14

Output

10 dB attenuator

50 Ω N-N coaxial cable

RSA3408A Service Manual

Performance Tests

a. Power off the RSA3408A analyzer and the signal generator.

b. Connect the analyzer and the generator with a GPIB cable.

c. Connect the analyzer INPUT through a 10 dB attenuator followed by a

50 Ω N-N coaxial cable to the generator output.

d. Power on the analyzer and the generator.

e. Set t he GPIB address of the generator, ranging from 1 to 30.

f. Insert the SG flatness floppy disk (Item 16) for the generator to the

floppy disk drive of the analyzer.

2. Perform the self calibration: Press CAL > Calibrate All.

3. Enter the PV menu:

a. Press Service... > Password in the CAL menu.

b. Enter 270833 andthenpressENTER using the numeric keypad.

c. Press the PV side key.

d. Set the GPIB address of the generator:

H Press the Config... side key.

H Press the SG Type side key to select the manufacturer of the

generator for the GPIB command system: HP or Anritsu.

H Press the SG Address side key and set the generator address.

H Press the Cancel--Back side key.

4. Perform the tests in all bands:

Press the All Band side key to perform the tests.

NOTE. You can select the test items and bands as described in Service PV Menu
on page 4--12.

5. Check the test results:

Check the Pass/Fail results displayed on the lower left of the screen
(see Figure 4--7).

If any tests fail, go to When the Auto Tests Fail on page 4--19.

RSA3408A Service Manual

4- 15

Performance Tests

Procedure 2

Figure 4- 7: Performance test result display

6. Disconnect the test equipment:

a. Disconnect the cable from the analyzer input.

b. Turn off the analyzer and generators.

c. Disconnect the GPIB cables from all the ports.

Performs the auto tests using two signal generators, Item 1 that covers the
baseband and RF1 band and Item 2 that covers the RF2 and RF3 bands.

Equipment
Required

Prerequisites Refer to page 4--10

Two signal generators (Items 1 and 2)

One 50 Ω N-N coaxial cable (Item 11)

One 10 dB attenuator (Item 14)

One GPIB cable (Item 13, two required)

One SG flatness floppy disk (Item 16, two required)

4- 16

RSA3408A Service Manual

1. Prepare for the test:

A

Hook up the equipment as shown in the following figure.

Signal generator (Item 1)Signal generator (Item 2)

GPIB cable

GPIB cable

Performance Tests

RSA3408

Output

50 Ω N-N coaxial cable

10 dB attenuator

a. Power off the analyzer and the signal generators.

b. Connect the analyzer and the generators with GPIB cables.

c. Connect the analyzer INPUT through a 10 dB attenuator followed by a

50 Ω N-N coaxial cable to the generator (Item 1) output.

d. Power on the analyzer and the generators.

e. Set t he GPIB address of the generators, ranging from 1 to 30.

Assign a unique address to each instrument.

f. Insert the SG flatness floppy disk (Item 16) for the generator (Item 1) to

the floppy disk drive of the analyzer.

2. Perform the self calibration: Press CAL > Calibrate All.

3. Enter the PV menu:

a. Press Service... > Password in the CAL menu.

b. Enter 270833 andthenpressENTER using the numeric keypad.

c. Press the PV side key.

d. Set the GPIB address of the generator:

H Press the Config... side key.

H Press the SG Type side key to select the manufacturer of the

generator (Item 1) for the GPIB command system: HP or Anritsu.

H Press the SG Address side key and set the generator address.

H Press the Cancel--Back (top) side key.

RSA3408A Service Manual

4- 17

Performance Tests

4. Perform the tests in the baseband and RF1 band:

Press the BB+RF1 side key to perform the tests.

5. Check the test results:

Check the pass/fail results displayed on the lower left of the screen
(see Figure 4--7 on page 4--16).

If the instrument fails any tests, go to When the Auto Tests Fail on
page 4--19.

6. Change the signal generator:

a. Disconnect the N--N cable from the signal generator (Item 1) output.

b. Connect the N--N cable to the signal generator (Item 2) output.

c. Set the GPIB address of the generator:

H Press the Config... side key.

H Press the SG Type side key to select the manufacturer of the

generator (Item 2) for the GPIB command system: HP or Anritsu.

H Press the GPIB Address side key and set the generator address.

H Press the Cancel--Back (top) side key.

7. Perform the tests in the RF2 and RF3 bands:

Press the RF2+RF3 side key to perform the tests.

8. Check the test results:

Check the pass/fail results displayed on the lower left of the screen
(see Figure 4--7 on page 4--16).

If the instrument fails any tests, go to When the Auto Tests Fail on

page 4--19.

9. Disconnect the test equipment:

a. Disconnect the N-N cable from the analyzer input.

b. Turn off the analyzer and generators.

c. Disconnect the GPIB cables from all the ports.

4- 18

RSA3408A Service Manual

Performance Tests

When the Auto Tests Fail

If any test results in Fail (see Figure 4--7 on page 4--16), perform calibration,
referring to Auto Calibration on page 5--20, and then perform the auto tests
again.

1. Perform the auto calibration for the failed test item as shown in Table 4--5.

Table 4- 5: Procedure for failed test item

Failed test item Procedure

BB Flatness Perform the baseband flatness calibration.

Use the All Band Calibration on page 5--25, but select BB in
the service Cal menu.

IF Flatness, RF1@400M
IF Flatness, RF1@1G
IF Flatness, RF1@2G
IF Flatness, RF1@3G
IF Flatness, RF2@5G
IF Flatness, RF3@6G

RF Flatness, RF1
RF Flatness, RF2
RF Flatness, RF3

Perform the IF flatness (wide/IQ) calibration.
Refer to IF Flatness (Wide/Iq) Calibration on page 5--29 for the
procedure.

Perform the RF flatness calibration.
Refer to All Band Calibration on page 5--25 for the procedure.
You can select RF1, RF2+RF3,orRF1+RF2+RF3 with
Cal Select in the service Cal menu for the band in which the
error occurred.

Spurious, RF1
Spurious, RF2
Spurious, RF3

Perform the spurious calibration.
Use the All Band Calibration on page 5--25, but select
Spurious wit h Cal Select in the service Cal menu.
You can select RF1, RF2+RF3,orRF1+RF2+RF3 in the
service Cal menu for the band in which the error occurred.

2. Perform the auto tests again to check that the instrument passes.

If the instrument fails the spurious test again, go to the next section, Further
Spurious Test.

Further Spurious Test. Performs spurious test at the specified frequency.

1. Connect a USB mouse (Item 17) and keyboard (Item 18) to the USB ports
on the side panel of the analyzer.

2. Press MEASURE (front panel) > Spurious PV.

3. Set the GPIB address of the signal generator:

a. Press the SG side key to select the manufacturer of the generator for the

GPIB command system: HP or Anritsu.

b. Press the GPIB Address side key and set the generator address.

RSA3408A Service Manual

4- 19

Performance Tests

4. Check the error log:

View the error log in the following location using the mouse and keyboard:

NOTE. For accessing Windows XP on the analyzer, refer to the RSA3408A User
Manual.

H Directory: C:\Program Files\Tektronix\wca200a\log

H File: spurious_RFxPV.log

(RFx = RF1, RF2, or RF3, depending on the test frequency)

Below is an example of the spurious_RF1PV.log file:

Spurious PV, RF1
Begin 2005/04/28 16:34:03
1000MHz: 67.5kHz, --73.065dB
2000MHz: 55.3kHz, --76.142dB
End 2005/04/28 17:02:05

Center frequency

Spurious offset frequency
from the center frequency

Difference in level between carrier
at the center frequency and
spurious at the offset frequency

5. Set test frequency:

a. Press the Band side key to select the band in which the error occurred.

For example, if an error occurred at 1000 MHz, select RF1.

b. Press the Start side key and set the frequency at which the error

occurred. For example, if an error occurred at 1000 MHz, enter 1000.

c. Press the Stop side key and set the same frequency as in Start (in this

example, 1000) to perform the measurement at the error frequency.

6. Perform the test: Press the Measurement side key to run the test.
Check that the test passes on the right bottom of the screen.

7. Repeat steps 5 and 6 for all the frequencies listed in the log file.

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RSA3408A Service Manual

Frequency Checks

Performance Tests

These procedures check the frequency-related characteristics and are listed as
checked in Chapter 1, Specifications, Table 1--1 on page 1--2.

Check Frequency Readout

Accuracy

Equipment
Required

Prerequisites Refer to page 4--10.

One signal generator (Item 2 or 3)

One 50 Ω N-N coaxial cable (Item 11)

1. Prepare for the test:

a. Initialize the analyzer:

H Press the SYSTEM key on the front panel.

H Press the Reset All to Factory Defaults side key.

b. Set the generator controls:

Frequency 10 MHz................

Level --10 dBm....................

c. Hook up the signal generator:

Connect the generator output through a 50 Ω N-N coaxial cable to the
analyzer INPUT. See the following figure.

RSA3408A

RSA3408A Service Manual

Signal generator

Output

50 Ω N-N coaxial cable

4- 21

Performance Tests

2. Check frequency accuracy in the baseband:

a. Modify the analyzer default settings:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 10 MHz using the numeric keypad.

H Press the SPAN key on the front panel.

H The Span menu item is selected by default.

Set the span to 1 MHz using the general purpose knob.

b. Measure peak frequency:

H Press the PEAK key to place the marker on the signal peak.

H Read the m arker readout. Confirm that the value is

10 MHz 1kHz.

3. Check frequency accuracy in the RF1 band:

a. Modify the generator control:

Frequency 2 GHz................

b. Modify the analyzer controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 2 GHz using the numeric keypad.

c. Measure peak frequency:

H Press the PEAK key to place the marker on the signal peak.

H Read the m arker readout. Confirm that the value is

2 GHz 1.4 kHz.

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RSA3408A Service Manual

4. Check frequency accuracy in the RF2 band:

a. Modify the generator control:

Frequency 5 GHz................

b. Modify the analyzer controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 5 GHz using the numeric keypad.

c. Measure peak frequency:

H Press the PEAK key to place the marker on the signal peak.

H Read the m arker readout. Confirm that the value is

5 GHz 2.0 kHz.

5. Check frequency accuracy in the RF3 band:

Performance Tests

a. Modify the generator control:

Frequency 7 GHz................

b. Modify the analyzer controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 7 GHz using the numeric keypad.

c. Measure peak frequency:

H Press the PEAK key to place the marker on the signal peak.

H Read the m arker readout. Confirm that the value is

7 GHz 2.4 kHz.

6. Disconnect the test equipment:

Disconnect the cable at the analyzer input.

RSA3408A Service Manual

4- 23

Performance Tests

Check 10 MHz Reference

Output Accuracy

Equipment
Required

Prerequisites Refer to page 4--10.

One frequency counter (Item 6)

One 50 Ω BNC coaxial cable (Item 10)

One 50 Ω terminator (Item 15)

The frequency counter must have been operating for a warm-up period
of at least 24 hours.

1. Prepare for the test:

a. Hook up the frequency counter:

Connect REF OUT on the rear panel of the analyzer through a 50 Ω
precision coaxial cable and a 50 Ω precision terminator to Channel 1 of
the counter. See the following figure.

Frequency counter

RSA3408A (rear)

REF OUT

CH1 input

50 Ω terminator

50 Ω BNC coaxial cable

b. Set the counter controls:

Function Frequency 1.................

Gate time 2 s................

2. Check the frequency:

Check that the frequency counter reads 10 MHz 2.0 Hz.

3. Disconnect the hookup:
Disconnect the cable at REF OUT.

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RSA3408A Service Manual

Noise Sideband Checks

Performance Tests

These procedures check the noise sideband-related characteristics and are listed
as checked in Chapter 1, Specifications, Table 1--2 on page 1--3.

Check Noise Sideband

Equipment
Required

Prerequisites Refer to page 4--10.

1. Prepare for the test:

a. Initialize the analyzer:

H Press the SYSTEM key on the front panel.

H Press the Reset All to Factory Defaults side key.

b. Modify the default settings:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 1 GHz using the numeric keypad.

H Press the AMPLITUDE key on the front panel.

H Press the RF Atten/Mixer side key to select Mixer.

H The Mixer Level menu item is selected by default.

Set the level to --10 dBm.

One signal generator (Item 4)

One 50 Ω N-N coaxial cable (Item 11)

RSA3408A Service Manual

H Press TRACE/AVG > Trace 1 Type... > Average.

H Press the Number Of Averages side key and set the value to 50

using the general purpose knob.

c. Set the generator controls:

Frequency 1000 MHz................

Amplitude 0 dBm................

RF output On................

d. Hook up the signal generator:

Connect the generator output through a 50 Ω N-N coaxial cable to the
analyzer INPUT. See the following figure.

4- 25

Performance Tests

Signal generator

Output

50 Ω N --N coaxial cable

RSA3408A

2. Check phase noise for a span of 50 kHz:

a. Modify the analyzer controls:

H Press the SPAN key on the front panel.

H The Span menu item is selected by default. Set the span to 50 kHz

using the general purpose knob or the numeric keypad.

b. Perform the C/N (Carrier-to-Noise ratio) measurement:

H Press MEASURE > C/N > MEAS SETUP.

H Press the Offset Frequency side key and set the value to 10 kHz

using the numeric keypad.

H Press the Carrier Bandwidth side key and set the value to 5 kHz

using the numeric keypad.

H Press the Noise Bandwidth side key and set the value to 1 kHz

using the numeric keypad.

c. Check against limits:

Read the phase noise (C/No) at the bottom of the screen.
Confirm that the value is 110 dB/Hz or more.

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RSA3408A Service Manual

3. Check phase noise for a span of 500 kHz:

a. Modify the analyzer controls:

H Press the SPAN key on the front panel.

H The Span menu item is selected by default. Set the span to 500 kHz

using the general purpose knob or the numeric keypad.

b. Perform the C/N measurement:

H Select MEASURE > C/N > MEAS SETUP.

H Press the Offset Frequency side key and set the value to 100 kHz

using the numeric keypad.

H Press the Carrier Bandwidth side key and set the value to 50 kHz

using the numeric keypad.

H Press the Noise Bandwidth side key and set the value to 10 kHz

using the numeric keypad.

Performance Tests

c. Check against limits:

Read the phase noise (C/No) at the bottom of the screen.
Confirm that the value is 112 dB/Hz or more.

4. Check phase noise for a span of 5 MHz:

a. Modify the analyzer controls:

H Press the SPAN key on the front panel.

H The Span menu item is selected by default. Set the span to 5 MHz

using the general purpose knob or the numeric keypad.

b. Perform the C/N measurement:

H Select MEASURE > C/N > MEAS SETUP.

H Press the Offset Frequency side key and set the value to 1 MHz

using the numeric keypad.

H Press the Carrier Bandwidth side key and set the value to 300 kHz

using the numeric keypad.

H Press the Noise Bandwidth side key and set the value to 100 kHz

using the numeric keypad.

RSA3408A Service Manual

c. Check against limits:

Read the phase noise (C/No) at the bottom of the screen.
Confirm that the value is 132 dB/Hz or more.

5. Disconnect the test equipment: Disconnect the cable at the analyzer input.

4- 27

Performance Tests

Amplitude Checks

These procedures check the amplitude-related characteristics and are listed as
checked in Chapter 1, Specifications, Table 1--4 on page 1--5.

Check Absolute

Amplitude Accuracy

Equipment
Required

Prerequisites Refer to page 4--10.

One signal generator (Item 1)

One power meter (Item 7)

One power sensor (Item 8)

One 50 Ω N-N coaxial cables (Item 11)

1. Set up the power meter and sensor:

NOTE. Store the power sensor correction factors in the power meter, if you have
not yet done so.

a. Connect the power meter and the power sensor. See the following figure.

Power meter

Power sensor

Sensor input

4- 28

b. Warm up the power meter and sensor for more than 20 minutes.

c. Press ZERO on the power meter.

d. Connect the RF input of the power sensor to the power reference output

of the power meter. See Figure 4--8 on page 4--29.

e. Turn on POWER REF and execute the calibration.

f. Disconnect the RF input of the power sensor from the reference output

of the power meter.

RSA3408A Service Manual

Power meter

Power reference output

Figure 4- 8: Hookup for calibrating the power sensor

Baseband Test.

2. Set the signal generator output:

a. Hook up the instruments:

Connect the signal generator (Item 1) output through a 50 Ω N-N coaxial
cable to the power sensor input. See Figure 4--9.

Performance Tests

Signal generator

Power meter

Output

Power sensor

Figure 4- 9: Hookup for setting the signal generator output

b. Set the signal generator controls:

Frequency 25 MHz................

Level --10 dBm....................

c. Set the power meter control:

Frequency 25 MHz................

d. Adjust the output level of the signal generator so that the power meter

reads --10 dBm 0.05 dBm.

RSA3408A Service Manual

e. Disconnect the cable from the power sensor input.

4- 29

Performance Tests

3. Prepare for the test:

a. Hook up the instruments:

Connect the signal generator output through a 50 Ω N-N coaxial cable to
the RSA3408A INPUT. See Figure 4--10.

RSA3408A

Signal generator

Output

50 Ω N-N coaxial cable

Figure 4- 10: Hookup for checking the a bsolute amplitude accuracy

b. Initialize the analyzer:

H Press the SYSTEM key on the front panel.

H Press the Reset All to Factory Defaults side key.

c. Modify the default settings:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 25 MHz using the numeric keypad.

H Press the SPAN key on the front panel.

H The Span menu item is selected by default.

Set the span to 10 MHz using the general purpose knob.

d. Calibrate the analyzer gain:

H Press CAL > Calibrate Gain.

H Press AMPLITUDE > Auto Level.

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RSA3408A Service Manual

Performance Tests

4. Check the amplitude:

a. Press the PEAK key on the front panel to place the marker on the

signal peak.

b. Check that the marker readout is within --10 dBm 0.3 dB.

5. Disconnect the hookup:

Disconnect the cable at the analyzer input.

RF Test.

6. Modify the signal generator output:

a. Hook up the test equipment:

Connect the signal generator output through a 50 Ω N-N coaxial cable to
the power sensor input. See Figure 4-- 9 on page 4--29.

b. Modify the signal generator controls:

Frequency 100 MHz................

Level --20 dBm....................

c. Modify the power meter control:

Frequency 100 MHz................

d. Adjust the output level of the signal generator so that the power meter

reads --20 dBm 0.05 dBm.

e. Disconnect the cable from the power sensor input.

7. Modify the test hookup and preset the i nstrument controls:

a. Hook up the instruments:

Connect the signal generator output through a 50 Ω N-N coaxial cable to
the RSA3408A INPUT. See Figure 4--10 on page 4--30.

b. Modify the analyzer controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 100 MHz using the numeric keypad.

H Press the AMPLITUDE key on the front panel.

RSA3408A Service Manual

H Press the RF Atten/Mixer side key to select RF Att.

H The RF Att menu item is selected by default.

Set the attenuation to 0 dB.

4- 31

Performance Tests

c. Calibrate the analyzer gain:

H Press CAL > Calibrate Gain.

H Press Amplitude > Auto Level.

8. Check the amplitude:

a. Press the PEAK key on the front panel to place the marker on the

signal peak.

b. Check that the marker readout is within --20 dBm 0.5 dB.

9. Disconnect the test equipment:

Disconnect the cable at the analyzer input.

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RSA3408A Service Manual

Performance Tests

Check Input Attenuator

Setting Uncertainty

Equipment
Required

Prerequisites Refer to page 4--10.

One signal generator (Item 1)

One 50 Ω N-N coaxial cables (Item 11)

1. Prepare for the test:

a. Set the generator controls:

Frequency 100 MHz................

Amplitude --25 dBm................

RF output On................

b. Hook up the generator:

Connect the generator output through a 50 Ω N-N coaxial cable to the
analyzer INPUT. See the following figure.

Signal generator

RSA3408A

Output

50 Ω N-N coaxial cable

c. Initialize the analyzer:

H Press the SYSTEM key on the front panel.

H Press the Reset All to Factory Defaults side key.

RSA3408A Service Manual

4- 33

Performance Tests

d. Modify the default settings:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 100 MHz using the numeric keypad.

H Press the SPAN key on the front panel.

H The Span menu item is selected by default.

Set the span to 10 MHz using the general purpose knob.

H Press the AMPLITUDE key on the front panel.

H The Ref Level menu item is selected by default.

Set the reference level to --20 dBm using the general purpose knob.

H Press the RF Atten/Mixer side key to select RF Att.

H The RF Att menu item is selected by default. Set the attenuation to

0 dB using the numeric keypad or the general purpose knob.

2. Measure the reference amplitude at 0 dB attenuation:

a. Press the PEAK key on the front panel to place the marker on the

signal peak.

b. Record the peak amplitude at the marker readout as the reference value.

(Let the value be P

)

0.

3. Check the amplitude for the attenuation from 5 to 30 dB:

a. Press the RF Att side key and set the attenuation (initially 5 dB).

b. Press the PEAK key on the front panel to place the marker on the

signal peak.

c. Record the peak amplitude at the marker readout. (Let the value be P

d. Check that the error (PX-- P0) is within 0.2 dB .

e. Repeat substeps 3a through d for attenuation from 5 to 30 dB in 5 dB

steps.

4. Modify the generator controls:

Amplitude --5 dBm................

.)

X

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RSA3408A Service Manual

Performance Tests

5. Modify the analyzer controls:

a. Press the AMPLITUDE key on the front panel.

b. The Ref Level menu item is selected by default.

Set the reference level to 0 dBm using the general purpose knob.

c. Make sure that RF Att is s et to 30 dB.

6. Measure the reference amplitude at 30 dB attenuation:

a. Press the PEAK key on the front panel to place the marker on the

signal peak.

b. Record the peak amplitude at the marker readout as the reference value.

(Let the value be P

)

1.

7. Check the amplitude for attenuation from 35 to 55 dB:

a. Press the RF Att side key and set the attenuation (initially 35 dB).

b. Press the PEAK key on the front panel to place the marker on the

signal peak.

c. Record the peak amplitude at the marker readout. (Let the value be P

d. Check that the error (P

-- P1) is within 0.2 dB .

X

e. Repeat substeps 7a through d forattenuationfrom35to55dBin5dB

steps.

8. Disconnect the test equipment:

Disconnect the cable at the analyzer input.

.)

X

RSA3408A Service Manual

4- 35

Performance Tests

Check Level Linearity

Equipment
Required

Prerequisites Refer to page 4--10.

One signal generator (Item 1)

One spectrum analyzer (Item 5)

One power meter (Item 7)

One power sensor (Item 8)

One 50 Ω N-N coaxial cable (Item 11)

1. Set up the power meter and sensor:

Do step 1 on page 4--28 to set up the power meter and sensor.

2. Set the signal generator output:

a. Hook up the instruments:

Connect the signal generator (Item 1) output through a 50 Ω N-N coaxial
cable to the power sensor input. See the figure below.

Signal generator

Power meter

Output

Power sensor

b. Set the signal generator controls:

Frequency 100 MHz................

Level +10 dBm....................

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RSA3408A Service Manual

Performance Tests

3. Determine the reference power in +10 to --30 dBm:

a. Measure the power and record it as Pr0.

b. Set the signal generator amplitude to 0 to --30 dBm in 10 dB steps and

measure the power as Pr1 to 4, respectively.

Signal generator amplitude Reference power

+10 dBm Pr0

0dBm Pr1

--10 dBm Pr2

--20 dBm Pr3

--30 dBm Pr4

4. Modify the hookup:

a. Connect the generator output through a 50 Ω N-N coaxial cable to the

spectrum analyzer (Item 5) input. See the following figure.

Spectrum analyzer

Signal generator

Output

50 Ω N-N coaxial cable

b. Set the signal generator control:

Amplitude --30 dBm................

c. Set the spectrum analyzer controls:

Measurement mode SA mode........

Reference level --20 dBm............

Center frequency 100 MHz..........

Span 1 MHz....................

RF attenuation 10 dB............

RBW Auto....................

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4- 37

Performance Tests

5. Set the reference offset:

a. Set the spectrum analyzer control:

A verage 10..................

b. Measure the peak power Ppr using the maker peak.

c. Modify the spectrum analyzer control:

Reference offset Pr4 -- Ppr...........

6. Determine the reference power in --40 dBm:

a. Set the signal generator amplitude to --40 dBm to measure the power

as Pr5.

Signal generator amplitude Reference power

--40 dBm Pr5

b. Disconnect the cable from the spectrum analyzer.

7. Modify the hookup:

a. Connect the signal generator output to the RSA3408A analyzer input.

See the following figure.

RSA3408A

Signal generator

Output

50 Ω N-N coaxial cable

b. Set the signal generator control:

Amplitude +10 dBm................

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RSA3408A Service Manual

Performance Tests

c. Modify the RSA3408A analyzer controls:

Center frequency 100 MHz..........

Span 5 MHz....................

Reference level 10 dBm............

RF attenuation 20dB............

8. Measure the power:

a. Measure the power and record it as Pm0.

b. Set the signal generator amplitude to 0 to --40 dBm in 10 dB steps to

measure the power as Pm1 to 5.

c. Get the level linearity Pfx (x = 1 to 5) as:

Pfx = (Pmx -- Pm0) -- (Prx -- Pr0)

Table 4- 6: Level linearity test result

Signal generator
amplitude

+10 dBm Pr0 Pm0 --

0dBm Pr1 Pm1 Pf1 = (Pm1 -- Pm0) -- (Pr1 -- Pr0)

--10 dBm Pr2 Pm2 Pf2 = (Pm2 -- Pm0) -- (Pr2 -- Pr0)

--20 dBm Pr3 Pm3 Pf3 = (Pm3 -- Pm0) -- (Pr3 -- Pr0)

--30 dBm Pr4 Pm4 Pf4 = (Pm4 -- Pm0) -- (Pr4 -- Pr0)

--40 dBm Pr5 Pm5 Pf5 = (Pm5 -- Pm0) -- (Pr5 -- Pr0)

Reference
power

Measured
power

Level linearity

9. Disconnect the test equipment:

Disconnect the cable at the analyzer input.

RSA3408A Service Manual

4- 39

Performance Tests

Spurious Response Checks

These procedures check the spurious-related characteristics and are listed as
checked in Chapter 1, Specifications, Table 1--5 on page 1--6.

Check 3rdOrder

Intermodulation Distortion

Equipment
Required

Prerequisites Refer to page 4--10.

Two signal generators (Item 2 (or 3) and Item 4)

One power combiner (Item 9)

Three 50 Ω N-SMA coaxial cables (Item 12)

1. Prepare for the test:

a. Connect each generator output through a 50 Ω N-SMA coaxial cable to

each power combiner input. See the following figure.

RSA3408A

Signal generator

Output

N-SMA cable

Signal generator

4- 40

Power

combiner

N-SMA cable

Output

b. Connect the power combiner output through a 50 Ω N-SMA coaxial

cable to the analyzer INPUT.

RSA3408A Service Manual

Performance Tests

c. Set the signal generator (Item 2) controls:

Frequency 1999.85 MHz................

Level 0 dBm....................

ALC BW 100 Hz................

d. Set the signal generator (Item 4) controls:

Frequency 2000.15 MHz................

Level 0 dBm....................

ALC BW 100 Hz................

e. Initialize the analyzer:

H Press the SYSTEM key on the front panel.

H Press the Reset All to Factory Defaults side key.

f. Modify the default controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 2 GHz using the numeric keypad.

H Press the SPAN key on the front panel.

H The Span menu item is selected by default.

Set the span to 1 MHz using the general purpose knob.

H Press the AMPLITUDE key on the front panel.

H The Ref Level menu item is selected by default.

Set the level to 5 dBm using the general purpose knob.

H Press the RF Atten/Mixer side key to select Rf Att.

H Press the RBW/FFT key on the front panel.

H Press the RBW/FFT side key to select Man.

H Press the Extended Resolution side key to select On.

H Press the RBW side key and set the RBW to 2 kHz.

H Press TRACE/AVG > Trace 1 Type... > Average.

H Press the Number Of Averages side key and set the value to 50

using the general purpose knob.

RSA3408A Service Manual

H Press the MARKER SETUP key.

H Press the Ma

rkers side key to select Delta.

4- 41

Performance Tests

g. Modify the generator output level:

H Press MARKERS: A or " to place the marker on t he signal of

1999.85 MHz.

H Adjust the generator (Item 2) output level so that the signal level is

--10 dBm.

H Press MARKERS: A or " to place the marker on t he signal of

2000.15 MHz.

H Adjust the generator (Item 4) output level so that the signal level is

--10 dBm.

2. Check the amplitude for the attenuation of 10 to 20 dB:

a. Modify the analyzer controls:

H Press the AMPLITUDE key on the front panel.

H Press the RF Att menu item and set the attenuation using the general

purpose knob (initially 10 dB).

b. Measure the amplitude for the signals of 1999.55 MHz and

2000.45 MHz:

H Press the MARKER SETUP key.

H Press the Select Marker side key to select 1.

H Place the first marker at the signal of 1999.55 MHz using the

MARKERS: A or " key.

H Press the Select Marker side key to select 2.

H Place the second marker at the signal of 2000.45 MHz using the

MARKERS: A or " key.

c. Check against limits: Read the first and the second marker readouts.

Write down t he larger value.

d. Repeat substeps 2a through c forattenuationfrom10to20dBin5dB

steps to find the lowest distortion value.

3. Check against limits:

Confirm that the lowest value meets the requirement of --78 dBc.

4. Disconnect the test equipment:

Disconnect the cable at the analyzer input.

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RSA3408A Service Manual

Performance Tests

Check Displayed Average

Noise Level

Equipment
Required

Prerequisites Refer to page 4--10.

None

1. Prepare for the test:

a. Initialize the analyzer:

H Press the SYSTEM key on the front panel.

H Press the Reset All to Factory Defaults side key.

RSA3408A

b. Modify the analyzer controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 10 MHz using the general purpose knob.

H Press the SPAN key on the front panel.

H The Span menu item is selected by default.

Set the span to 1 MHz using the general purpose knob.

H Press the AMPLITUDE key on the front panel.

H The Ref Level menu item is selected by default.

Set the level to --30 dBm using the general purpose knob.

H Press the RBW/FFT key on the front panel.

H Press the RBW/FFT side key to select Man.

H The RBW menu item is selected by default.

Set the value to 10 kHz using the general purpose knob.

RSA3408A Service Manual

4- 43

Performance Tests

H Press TRACE/AVG > Trace 1 Type... > Average.

H Press the Number Of Averages side key and set the value to 50.

H Press MEASURE > Channel Power > MEAS SETUP.

H Press the Channel Bandwidth side key and set the value to 1 MHz

using the general purpose knob.

2. Check noise in the baseband:

Read the measurement result of Density at the bottom of the screen.
Check that the value is --151 dBm/Hz or less.

3. Check noise at 2 GHz in the RF1 band:

a. Modify the analyzer control:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 2 GHz using the general purpose knob.

H Press the AMPLITUDE key on the front panel.

H The Ref Level menu item is selected by default.

Set the level to --50 dBm using the general purpose knob.

H Press the RF Atten/Mixer side key to select RF Att.

H The RF Att menu item is selected by default.

Set the attenuation to 0 dB using the general purpose knob.

b. Check against limits:

Read the measurement result of Density at the bottom of the screen.
Check that the value is --150 dBm/Hz or less.

4. Check noise at 3 GHz in the RF1 band:

a. Modify the analyzer control:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 3 GHz using the general purpose knob.

b. Check against limits:

Read the measurement result of Density at the bottom of the screen.
Check that the value is --150 dBm/Hz or less.

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RSA3408A Service Manual

5. Check noise at 7 GHz in the RF3 band:

a. Modify the analyzer control:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 7 GHz using the general purpose knob.

b. Check against limits:

Read the measurement result of Density at the bottom of the screen.
Check that the value is --142 dBm/Hz or less.

Performance Tests

RSA3408A Service Manual

4- 45

Performance Tests

Check Residual Response

Equipment
Required

Prerequisites Refer to page 4--10.

None

1. Prepare for the test:

a. Initialize the analyzer:

H Press the SYSTEM key on the front panel.

H Press the Reset All to Factory Defaults side key.

RSA3408A

b. Modify the default settings:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 20 MHz using the general purpose knob.

H Press the SPAN key on the front panel.

H The Span menu item is selected by default.

Set the span to 40 MHz using the general purpose knob.

H Press the AMPLITUDE key on the front panel.

H The Ref Level menu item is selected by default.

Set the level to --30 dBm using the general purpose knob.

H Press the RBW/FFT key on the front panel.

H Press the RBW/FFT side key to select Man.

H The RBW menu item is selected by default.

Set the RBW to 100 kHz using the general purpose knob.

H Press TRACE/AVG > Trace 1 Type... > Average.

H Press the Number Of Averages side key and set the value to 50

using the general purpose knob.

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2. Check residual response in the baseband:

a. Measure residual response:

H Press the LINES key on the front panel.

H Press the Show Line side key to select Vertical.

H Press the Number Of Line key to select 1.

H The Line1 menu item is selected by default.

Set the value to 1 MHz using the numeric keypad.

H Press the Show Line side key to select Horizontal.

H Press the Number Of Line key to select 1.

H The Line1 menu item is selected by default.

Set the value to --93 dBm using the numeric keypad.

b. Check against limits:

Confirm that the residual signal level is --93 dBm or less at 1 MHz or
more.

Performance Tests

3. Check residual response in the RF1 band:

a. Modify the analyzer controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 2 GHz using the numeric keypad.

H Press the SPAN key on the front panel.

H The Span menu item is selected by default.

Set the span to 3 GHz using the numeric keypad.

b. Measure residual response:

H Press the LINES key.

H Press the Show Line side key to select Horizontal.

H Press the Number Of Line key to select 1.

H The Line1 menu item is selected by default.

Set the value to --90 dBm using the numeric keypad.

c. Check against limits:

Confirm that the residual signal level is --90 dBm or less.

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Performance Tests

4. Check residual response in the RF2 band:

a. Modify the analyzer controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 5 GHz using the numeric keypad.

b. Measure residual response:

Press the PEAK key to place the marker at the peak on the noise floor.

c. Check against limits:

Read the marker readout. Confirm that the residual signal level is

--85 dBm or less within the whole bandwidth.

5. Check residual response in the RF3 band:

a. Modify the analyzer controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default.

Set the frequency to 6.5 GHz using the numeric keypad.

b. Measure residual response:

Press the PEAK key to place the marker at the peak on the noise floor.

c. Check against limits:

Read the marker readout. Confirm that the residual signal level is

--85 dBm or less within the whole bandwidth.

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Performance Tests

Check Spurious Response

Equipment
Required

Prerequisites Refer to page 4--10.

One signal generator (Item 2 or 3)

One 50 Ω N-N coaxial cable (Item 11)

1. Prepare for the test:

a. Initialize the analyzer:

H Press the SYSTEM key on the front panel.

H Press the Reset All to Factory Defaults side key.

b. Modify the default controls:

H Press the SPAN key on the front panel.

H The Span menu item is selected by default.

Set the span to 10 MHz using the general purpose knob.

H Press the RBW/FFT key on the front panel.

H Press the RBW/FFT side key to select Man.

H The RBW menu item is selected by default.

Set the value to 50 kHz using the general purpose knob.

H Press TRACE/AVG > Trace 1 Type... > Average.

H Press the Number Of Averages side key and set the value to 50.

H Press the MARKER SETUP key.

H Press the Markers side key to select Delta.

c. Set the generator controls:

Level --5 dBm....................

d. Hook up the signal generator:

Connect the generator output through a 50 Ω N-N coaxial cable to the
analyzer INPUT. See the following figure.

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Performance Tests

RSA3408A

Signal generator

Output

50 Ω N-N coaxial cable

2. Check spurious response:

a. Modify the generator controls:

Set the generator output frequency to the value as shown in Table 4--7
(initially 25 MHz).

b. Modify the analyzer controls:

H Press the FREQUENCY/CHANNEL key on the front panel.

H The Center Freq menu item is selected by default. Set the frequency

to the same value as the generator output using the numeric keypad.

c. Measure the amplitude:

H Press the MARKER SETUP key on the front panel.

H Press the Select Marker side key to select 1.

H Press the PEAK key and then the MARKERS: B (marker down)

key once to place the first marker at the peak on the noise floor.

H Press the Select Marker side key to select 2.

H Press the PEAK keytoplaceMarker2onthesignalpeak.

H Read the delta marker readout (Δ1--2) on the screen. Check that the

components other than the carrier meet the requirements shown in
Table 4--7 (initially --73 dBc).

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