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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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

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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

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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