This document applies to firmware version 4.0
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.
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:
HIn North America, call 1-800-833-9200.
HWorldwide, 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
Theory of Operation
General Safety Summaryix...................................
Service Safety Summaryxi....................................
Table 5--4: Summary of procedures5--9..........................
Table 5--5: Tools required for module removal5--10.................
Table 5--6: Normal supply voltages5--76...........................
Table 5--7: Test point voltages on A705--77.........................
Table 5--8: Symptoms and faulty modules5--78.....................
RSA3303B & RSA3308B Analyzers Service Manual
vii
Table of Contents
viii
RSA3303B & RSA3308B Analyzers 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.
Connect and Disconnect Properly. Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
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.
Power Disconnect. The power switch disconnects the product from the power
source. See instructions for the location. Do not block the power switch; it must
remain accessible to the user at all times.
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.
Keep Product Surfaces Clean and Dry.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
RSA3303B & RSA3308B Analyzers Service Manual
ix
General Safety Summary
Symbols and Terms
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.
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:
Protective Ground
(Earth) Terminal
CAUTION
Refer to Manual
Mains Disconnected
OFF (Power)
Mains Connected
ON (Power)
x
RSA3303B & RSA3308B Analyzers 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.
RSA3303B & RSA3308B Analyzers Service Manual
xi
Service Safety Summary
xii
RSA3303B & RSA3308B Analyzers Service Manual
Preface
Manual Structure
This is the service manual for the RSA3303B and RSA3308B Real-Time
Spectrum Analyzers. The 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.
HSpecifications contains a description of the analyzer and the applicable
characteristics.
HTheory of Operation contains circuit descriptions that support service to the
module level.
HPerformance Verification contains procedures for confirming that the
analyzer functions properly and meets warranted limits.
HAdjustment Procedures contains procedures for adjusting the analyzer to
meet warranted limits.
HMaintenance 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.
HDiagrams contains a block diagram and an interconnection diagram.
HReplaceable Parts List includes a table of all replaceable modules, their
descriptions, and their Tektronix part numbers.
RSA3303B & RSA3308B Analyzers 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:
HNames of front panel controls and menus appear in the same case (initial
capital) in the manual as is used on the analyzer front panel and menus;
for example, Span, Trig, and Select.
HInstruction steps are numbered unless there is only one step.
Modules
Safety
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.
Finding Other Information
Other documentation for the RSA3303B and RSA3308B analyzers includes:
HThe RSA3303B and RSA3308B User Manual contains a tutorial to quickly
HThe RSA3303B and RSA3308B Programmer Manual explains how to use the
describe how to operate the analyzer. It also includes an in-depth discussion
on how to more completely use the analyzer features.
GPIB interface to remotely control the analyzer.
xiv
RSA3303B & RSA3308B Analyzers Service Manual
Introduction
This manual contains information needed to properly service the RSA3303B and
RSA3308B Real-Time Spectrum Analyzers 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:
HThe procedures in this manual should be performed only by a qualified
service person.
HRead the General Safety Summary and the Service Safety Summary,
beginning on page ix.
HRead Preparation for Use in section 2, 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 3, 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 5, Maintenance. To remove and replace
any failed module, follow the instructions in Removal and Installation Proce-dures, also part of section 5. After isolating a faulty module, replace it with a
fully-tested module obtained from the factory. Section 7, Replaceable Parts List,
contains part number and ordering information for all replaceable modules.
RSA3303B & RSA3308B Analyzers Service Manual
xv
Introduction
xvi
RSA3303B & RSA3308B Analyzers Service Manual
Specifications
This section contains the RSA3303B and RSA3308B R eal-Time Spectrum
Analyzers 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:
HThe analyzer must have been calibrated and adjusted at an ambient tempera-
HThe 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.
HThe analyzer must have had a warm-up period of at least 20 minutes.
RSA3303B & RSA3308B Analyzers Service Manual
1- 1
Specifications
Electrical Characteristics
Table 1- 1: Frequency
CharacteristicsDescription
Measurement frequency
Frequency rangeBaseband: DC to 20 MHz
RF:15 MHz to 3 GHz(RSA3303B)
RF1:15 MHz to 3.5 GHz (RSA3308B)
RF2:3.5 GHz to 6.5 GHz (RSA3308B)
RF3:5 GHz to 8 GHz(RSA3308B)
Operating and nonoperating20 to 80% (no condensation), maximum wet-bulb temperature 29 _C
Altitude
OperatingUp to 3000 m (10000 ft)
NonoperatingUp to 12000 m (40000 ft)
Vibration
Operating2.16 m/s2rms (0.22 G rms), 5 to 500 Hz (class 8)
Nonoperating22.3 m/s2rms (2.28 G rms), 5 to 500 Hz (class 5)
Shock
Nonoperating196 m/s2(20 G), half-sine, 11 ms duration
Three shocks in each direction along each major axis, total of 18 shocks
Cooling clearance
Bottom20 mm (0.79 in)
Both sides50 mm (1.97 in)
Rear50 mm (1.97 in)
RSA3303B & RSA3308B Analyzers Service Manual
1- 17
Specifications
Table 1- 26: Certifications and compliances
CharacteristicDescription
EC Declaration of Conformity -- EMCMeets intent of Directive 2004/108/EEC for Electromagnetic Compatibility.
Compliance was demonstrated to the following specifications as listed in the Official
Journal of the European Communities:
EN 61326:1997.EMC requirements for Class A electrical equipment for
measurement, control and laboratory use. Annex D
IEC 61000-4-2:1999.Electrostatic discharge immunity
IEC 61000-4-3:2002.RF electromagnetic field immunity
4
IEC 61000-4-4:2004.Electrical fast transient/burst immunity
IEC 61000-4-5:2005.Power line surge immunity
IEC 61000-4-6:2003.Conducted RF immunity
IEC 61000-4-11:2004.Voltage dips and interruptions immunity
EN 61000-3-2:2002.AC power line harmonic emissions
EN 61000-3-3:1995.Voltage changes, fluctuations, and flicker
Australia/New Zealand Declaration of
Conformity -- EMC
Complies with EMC provision of Radiocommunications Act per the following standard,
in accordance with ACMA:
EN 61326:1997.EMC requirements for electrical equipment for
measurement, control, and laboratory use.
EC Declaration of Conformity -- Low VoltageCompliance was demonstrated to the following specification as listed in the Official
Journal of the European Union:
Low Voltage Directive 2006/95/EC
EN 61010-1:2001.Safety requirements for electrical equipment for
measurement control and laboratory use.
U.S. Nationally Recognized Testing Laboratory
Listing
UL61010-1.
Standard for electrical measuring and test equipment.
Canadian CertificationCAN/CSA C22.2 No. 61010-1-04.
Safety requirements for electrical equipment for
measurement, control, and laboratory use. Part 1.
Additional ComplianceANSI/ISA 82.02.01:2004.Safety standard for electrical and electronic test,
measuring, controlling, and related equipment.
1,2,3
IEC61010-1.Safety requirements for electrical equipment for
measurement, control, and laboratory use.
1
This product is intended for use in nonresidential areas only. Use in residential areas may cause electromagnetic
interference.
2
Emissions which exceed the levels required by this standard may occur when this equipment is connected to a test
object.
3
To ensure compliance with the EMC standards listed here, high quality shielded interface cables should be used.
4
Performance Criteria with disturbance signal frequencies within 50 MHz of EUT Center Frequency: Residual spurious
signals can increase to - 60 dBm with exposure to the disturbance levels of the test.
1- 18
RSA3303B & RSA3308B Analyzers Service Manual
Specifications
Table 1- 26: Certifications and compliances (Cont.)
CharacteristicDescription
Overvoltage Category DescriptionTerminals on this product may have different installation (overvoltage) category
designations. The installation categories are:
CAT IIIDistribution-level mains (usually permanently connected). Equipment at this
level is typically in a fixed industrial location.
CAT IILocal-level mains (wall sockets). Equipment at this level includes
appliances, portable tools, and similar products. Equipment is usually
cord-connected.
CAT ISecondary (signal level) or battery operated circuits of electronic equipment.
Overvoltage CategoryOvervoltage Category II (as defined in IEC61010-1, Annex J)
Pollution Degree DescriptionA 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 1No pollution or only dry, nonconductive pollution occurs.
Products in this category are generally encapsulated,
hermetically sealed, or located in clean rooms.
Pollution Degree 2Normally 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 3Conductive 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 4Pollution that generates persistent conductivity through
conductive dust, rain, or snow. Typical outdoor locations.
Pollution DegreePollution Degree 2 (as defined in IEC61010-1). Note: Rated for indoor use only.
Safety Certification Compliance
Equipment TypeTest and measuring
Safety ClassClass 1 (as defined in IEC61010-1, Annex H) -- grounded product
Operating Temperature Range+5 to +40 _C
RSA3303B & RSA3308B Analyzers Service Manual
1- 19
Specifications
1- 20
RSA3303B & RSA3308B Analyzers Service Manual
Theory of Operation
This section describes the electrical operation of the RSA3303B and RSA3308B
using the major circuit blocks or modules as shown in Figure 9--1.
RF Input
The RF input circuit block consists of a relay for signal switching (Input Relay),
Step Attenuator 1 and 2, Programmable Band-pass Filter (RSA3308B only), and
a control circuit for t hese 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 is selected. The step attenuator 1 that follows is the Programmable
Attenuator of 10 dB / step, and attenuates the input signal up to --50 dB.
Band Relay performs switching of the signal paths between RF1 band and RF2/3
band. In baseband and RF1 band, fine adjustment to the level of input signal is
done with Step Attenuator 2 to take full advantage of high dynamic range
characteristics of RSA3303B/RS A3308B. Step Attenuator 2 is the Programmable Fine Attenuator of 2 dB/step and attenuates the signal up to --8 dB.
st
converter.
In RF2/3 band, bandwidth of the signal is limited with a P rogrammable
Band-pass Filter to avoid occurrence of images and/or spurious signals. This
Programmable B PF 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 Interconnection board. In a same way, other attenuators
and relays are controlled with currents from the A100 Interconnection board.
On the A100 Interconnection board, various components are installed, such as: a
group of registers to save the setup data from Hardware Controller, driver
circuits for relays and attenuators, 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, and other components.
RSA3303B & RSA3308B Analyzers Service Manual
2- 1
Theory of Operation
Down Converter
RF3 Module
RF2 Module
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
st
frequency of 1
in this case, so that 1
st
the 1
IF signal passes through the 1stIF Amplifier that has a gain of approxi-
Local Oscillator is controlled with a synthesizer (RF4 module)
st
IF signal is always maintained at 4232 MHz. After this,
mately 10 dB, and is sent to the 2
st
Converter. Mixed with 1stLO signal, the input
st
IF signal of 4232 MHz. Oscillation
nd
Converter (RF2 module).
In baseband, an input signal enters the 1stConverter. Then the signal path i s
switched with a relay and the signal is sent directly to the A10 A/D board for
st
A/D conversion. In RF1 band, an input signal goes through all converters (1
nd
, and 3rd). In RF2/3 band, an input signal is directly frequency-converted by
2
st
the 1
Converter into the 2ndIF signal of 422 MHz, then sent directly to 3
,
rd
Converter, bypassing the 2ndConverter.
The RF2 module consists of the 2
st
Oscillator. The 1
IF signal sent from the 1stConverter passes through a
nd
Converter, 3rdConverter, and 2ndLocal
Band-pass Filter and a Low-pass Filter for removal of unnecessary frequency
st
bands. After this, the 1
st
the 1
the 2
frequency of 2
IF signal is mixed with the 2ndLO signal and frequency-converted into
nd
IF signal of 422 MHz. Same with the case of 1stLocal Oscillator,
nd
Local Oscillator is controlled with a synthesizer circuit (RF4
IF signal enters the 2ndConverter. In the 2ndConverter,
module) to stabilize LO output frequency.
2- 2
RF5 Module
nd
The 2
mixed with the 3
IF signal is sent to the 3rdConverter. In the 3rdConverter, the signal is
rd
LO signal and frequency-converted into the 3rdIF signal of
39 MHz. After selected with a band-switching relay located at the input section
rd
of the 3
RF2/3 band mode is also frequency-converted into the 3
The RF5 module consists of the 3
Reference Oscillator. The Oscillator block contains the 3
Converter, the 2ndIF signal directly sent from the 1stConverter in
rd
IF signal of 39 MHz.
rd
IF Gain block, Oscillator block, and 10 MHz
rd
Local Oscillator and
an oscillator of Sampling Clock signal to be supplied to A/D Converter.
The Gain block consists of a Step Amplifier of 10 dB/step with the maximum
gain of 50 dB and a Step Attenuator with the maximum attenuation of --30 dB.
rd
This block maintains the 3
IF signal to be sent to A/D Converter at an
appropriate level, and adjusts the accuracy of conversion gain.
Both the 3
rd
LO signal and A/D clock signal generated in the Oscillator block are
highly stabilized signals locked with a 10 MHz reference signal, and are output
rd
to the 3
Converter and A10 A/D board, respectively.
RSA3303B & RSA3308B Analyzers 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 RF5 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 50 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 A42 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 BPF or LPF 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
A42 DIFP Board
RSA3303B & RSA3308B Analyzers Service Manual
The A42 DIFP (Digital Intermediate Frequency Processor) board consists of an
IQ Splitter, Digital Filters, Trigger Detector, Acquisition Memory, DPX (Digital
Phosphor) Processor, and Pixel Buffer 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.
2- 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 A42 DIFP board also interfaces between the data block and Microsoft
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 A42 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
In the DPX spectrum mode, time-domain data from the digital down converter
goes to the proprietary DPX processor that performs real-time FFT over 50,000
times per second. The spectrum traces are accumulated in the pixel buffer
memory, where a counter is incremented each time a trace writes to a point on
the display. A color is assigned to each display point based on the value of its
counter. Thus, as acquisitions occur over time, a color-graded waveform, the
Bitmap, develops on the display that shows the frequency of data occurrence
(signal density).
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.
2- 4
RSA3303B & RSA3308B Analyzers Service Manual
Theory of Operation
A70 DC Power Board
Standby Power and
On/Standby Switch
A50 Mother Board
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.
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/modules, as well as
interfacing of control signals and data with the CPU. Other devices such as the
PCI Bridge, Local Bus Controller, and B us Buffer for CPU bus expansion are
also on the A50 Mother board.
External Interface
A60 Front Key Board
A62 Front Connection
Board
RSA3303B & RSA3308B Analyzers Service Manual
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
HDD, FDD, LCD, USB, and keys with the CPU board.
The GPIB controller is also installed on the Front Connection board, and its
output bus is connected to the GPIB connector located on the real panel through
the A50 Mother board and the A70 DC Power board.
2- 5
Theory of Operation
2- 6
RSA3303B & RSA3308B Analyzers Service Manual
Performance Verification
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.
HTo rapidly confirm that the analyzer functions properly and was adjusted
properly, do the brief procedures under Functional Tests and Diagnostics,
which begin on page 3--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.
HIf more extensive confirmation of performance is desired, do the Perfor-
mance Tests, beginning on page 3--9, after doing the Functional Tests and
Diagnostics just referenced.
Advantages: These procedures add direct checking of warranted specifications. They require more time to perform and suitable test equipment is
required. (Refer to Equipment Required on page 3--10.)
RSA3303B & RSA3308B Analyzers Service Manual
3- 1
Performance Verification
Conventions
Throughout these procedures the following conventions apply:
HEach test procedure uses the following general format:
Title of Test
Equipment Required
Prerequisites
Procedure
HEach procedure consists of as many steps, substeps, and subparts as required
to do the test. S t eps, substeps, and subparts are sequenced as follows:
1. First Step
a. First Substep
HFirst Subpart
HSecond Subpart
b. Second Substep
2. Second Step
HInstructions for menu selection follow this format:
Front Panel Key > 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.
HIn steps and substeps, the lead-in statement in italics instructs you what to
do, while 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 RSA3308B analyzer controls:
Press Mode: Demod > Digital Demod > Constellation.
STOP. “STOP” is accompanied by information you must read to do the
procedure properly.
3- 2
RSA3303B & RSA3308B Analyzers Service Manual
Brief Procedures
The Functional Tests utilize the internal calibration signal as a test-signal source
for further verifying that the analyzer functions properly.
The Diagnostics uses internal routines to verify that the instrument functions
properly and passes the internal circuit tests.
The following section provides the details.
RSA3303B & RSA3308B Analyzers Service Manual
3- 3
Brief Procedures
Functional Check
The analyzer has a built-in calibration signal source with amplitude of approximately --20 dBm and frequency of 50 MHz. Using this source, perform this
quick functional check to verify that your instrument is operating correctly.
Equipment
Required
PrerequisitesPower 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 at 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.
3- 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... > Cal.
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 3--1).
RSA3303B & RSA3308B Analyzers Service Manual
Status indicator
Brief Procedures
Marker readout
Marker
Figure 3- 1: Spectrum of the calibration signal (50 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 3--1).
b. Check the marker readouts on screen. The frequency should be 50 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 15 MHz and the RBW is 80 kHz in the setup
display on t he upper part of the screen (see Figure 3--2).
RSA3303B & RSA3308B Analyzers Service Manual
3- 5
Brief Procedures
Setup display
SpanRBW
Span setting
Figure 3- 2: Setup display
c.Using the general purpose knob, change the span setting as listed in
Table 3--1 and check that the RBW is displayed correctly.
Table 3- 1: Span and RBW
SpanRBW
15 MHz80 kHz
5MHz20 kHz
100 kHz500 Hz
1kHz20 Hz
d. Using the numeric keypad, set the span back to 15 MHz.
(Press 1 > 5 > 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 3--3).
c.Use the general purpose knob to set the reference level to --30 dBm.
d. Confirm that “Overrange -- increase RefLev or Atten” 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 3--3.
e.Using the numeric keypad, set the reference level back to 0 dBm.
(Press 0 > Enter, in that order, on the keypad.)
3- 6
RSA3303B & RSA3308B Analyzers Service Manual
Reference level
Brief Procedures
Overrange indicatorReference level setting
Figure 3- 3: Reference level setting and overr a nge 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 3--4).
Figure 3- 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.
RSA3303B & RSA3308B Analyzers Service Manual
3- 7
Brief Procedures
Diagnostics
You can run the internal diagnostic program to check hardware states.
Table 3--2 shows the test items and their descriptions.
Table 3- 2: Internal diagnostic program
Menu itemDescriptionPossible failure
Temp SensorChecks that the temperature sensor works correctly. RF5 module
Data MemoryChecks that the acquisition memory works correctly. A42 board
DPX SRAMChecks that the DPX SRAM works correctly.A42 board
The process is
graphically displayed
on the upper views.
Equipment
Required
PrerequisitesPower 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 using the numeric keypad.
3. Press the DIAG side key.
4. Select the diagnostic menu item to be executed.You may press the All side key to run all the tests.
5. Check the result shown in the lower left view with “Pass” or “Fail”.
3- 8
Figure 3- 5: Diagnostic screen
RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
This section contains a collection of procedures for checking that the RSA3303B
and RSA3308B Real-Time Spectrum Analyzers perform as warranted.
STOP. These procedures extend the confidence level provided by the basic
procedures described on page 3--3. Perform the basic procedures first and then
perform the following procedures if desired.
There are two types of performance tests: Auto Tests and Manual Tests.
HAuto Tests use internal routines to verify that the analyzer functions properly
HManual Tests supplement the Auto Tests to verify the analyzer performance
and was adjusted properly.
formally and report the test records.
RSA3303B & RSA3308B Analyzers Service Manual
3- 9
Performance Tests
Prerequisites
The tests in this section comprise an extensive, valid confirmation of performance and functionality when the following requirements are met:
HThe cabinet must be installed on the analyzer.
HThe instrument must have passed the procedures under Brief Procedures
found on page 3--3.
HA 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.)
HThe 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.
HThe SG flatness/spurious floppy disk(s) (Item 17 in Table 3--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 4--6 and
Making Spurious Correction Files on page 4--13.
Equipment Required
These procedures use external, traceable signal sources to directly check
warranted characteristics. Table 3--3 shows the required equipment.
Table 3- 3: Test equipment
Item number and
description
1.Signal generator
2.Signal generatorFrequency range: 10 MHz to 8 GHz;
3.Signal generatorFrequency range: 1 MHz to 8 GHz;
1
For RSA3303B, you can use the signal generator with the frequency range of 10 kHz to 3 GHz, for example Agilent 8648C.
1
Minimum requirementsExamplePurpose
Frequency range : 10 kHz to 3.5 GHz;
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 8648DChecking flatness in base-
band and RF1 band
Agilent 83712B with
option 1E1
Agilent E8257D with
option 1E1
(option UNX recommended)
Checking flatness in RF2 and
RF3 bands (RSA3308B only)
Checking flatness in all bands
3- 10
RSA3303B & RSA3308B Analyzers Service Manual
Table 3- 3: Test equipment (Cont.)
Item number and
description
Performance Tests
PurposeExampleMinimum requirements
4.Signal generatorFrequency: 2 GHz; Output:
≥--10 dBm; Digital modulation: QPSK;
Symbol rate: 4.096 M/s
6.RF power meter1MHzto8GHzAgilent E4418BAdjusting the signal generator
7.RF power sensor10 MHz to 8 GHz; RF Flatness: <3%;
Uncertainty of calibration factor data:
<2% (RSS)
8.Power combinerRange: 500 MHz to 2 GHz; Isolation:
>18 dB; Insertion loss: <1.0 dB
9.BNC cable50 Ω, 36 in, male-to-male BNC
connectors
10. N-N cable50 Ω, 36 in, male-to-male N
connectors
11. N-SMA cable
(Three required)
12. GPIB cable
(Two required for
RSA3308B)
13. TerminatorImpedance: 50 Ω; connectors: female
14. RF attenuatorRatio: 10 dB; impedance 50 Ω;
15. MouseUSBStandard accessaryFile operation
16. KeyboardUSBStandard accessaryFile operation
17. SG flatness/spurious
floppy disk (for each
signal generator used)
50 Ω, 36 in, male N-to-male SMA
connectors
2m, double-shieldedTektronix part number
BNC input, male BNC output
Bandwidth: >8 GHz
Created or updated with the
procedures described on pages 4--6
and 4--13
-- 1 0
/day;
Rohde & Schwarz SMIQ03BChecking intermodulation
distortion
Agilent 53132A with
option 010
Agilent E4412AAdjusting the signal generator
Mini-Circuits ZAPD-21Checking intermodulation
Tektronix part number
012-1341-00
012-0991-00
Tektronix part number
011-0049-01
Inmet 18N--10
Mini-Circuits BW--S10W2
3.5 inch, 720 K or 1.44 MB,
DOS-compatible floppy disk
Checking the reference output frequency accuracy
output level
output level
distortion
Signal interconnection
Signal interconnection
Signal interconnection
Software-based tests
Signal termination for checking frequency accuracy
Checking flatness
Storing flatness and spurious
correction data for the signal
generators (Item 1, 2, and 3)
RSA3303B & RSA3308B Analyzers Service Manual
3- 11
Performance Tests
Auto Tests
The auto tests use internal routines to verify specifications for the following
characteristics:
HBaseband flatness
HIF flatness
HRF flatness
HSpurious response
Use the following service PV menu and procedure 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 3--6).
RSA3308B only
3- 12
Figure 3- 6: Auto test initial screen
The PV menu has the following controls:
PV Select. Selects the test items as shown in Table 3--4.
RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
Table 3- 4: Test item selection
PV Select
Test itemAllSpuriousOther
Baseband flatness✓✓
IF flatness✓✓
RF flatness✓✓
Spurious response✓✓
All Band. Performs the tests in all bands: Baseband, RF1, RF2, and RF3.
RF2 and RF3 are for RSA3308B only.
Measurement bandwidth: 1 MHz to 3 GHz (RSA3303B) / 8 GHz (RSA3308B)
BB. Performs the tests in the baseband.
Measurement bandwidth: 1 MHz to 20 MHz
RF1. P erforms t he tests in the RF1 band.
Measurement bandwidth:
20 MHz to 3 GHz (RSA3303B) / 3.5 GHz (RSA3308B)
BB+RF1. P erforms the tests in the baseband and RF1 band.
Measurement bandwidth: 1 MHz to 3 GHz (RSA3303B) / 3.5 GHz (RSA3308B)
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: 20 MHz to 8 GHz
Config... Sets the signal generator manufacturer and the GPIB address.
HSG Type. Selects the manufacturer of the generator for the GPIB command
system: HP or Anritsu.
NOTE. The HP setting also supports Agilent and Rohde & Schwarz products.
HGPIB Address. Sets the GPIB address of the generator.
RSA3303B & RSA3308B Analyzers Service Manual
3- 13
Performance Tests
STOP. Select either of these two procedures, depending on the signal generator(s) you use:
HProcedure 1 below:
Uses one signal generator, Item 3, which covers all measurement bands:
Baseband, RF1, RF2, and RF3.
HProcedure 2 on page 3--16:
Uses two signal generators: Item 1, which covers the baseband and
RF1 band, and Item 2, which covers the RF2 and RF3 bands.
RF2 and RF3 are for RSA3308B only.
Procedure 1
Performs the auto tests using one signal generator (Item 3), which covers all
measurement bands: Baseband, RF1, RF2, and RF3 (RF2 and RF3 are for
RSA3308B only).
Equipment
Required
PrerequisitesRefer to page 3--10
One signal generator (Item 3)
One 50 Ω N-N coaxial cable (Item 10)
One 10 dB attenuator (Item 14)
One GPIB cable (Item 12)
One SG flatness/spurious floppy disk (Item 17)
1. Prepare for the test: See the figure below for the hookup.
RSA3303B/RSA3308B
Signal generator
GPIB cable
3- 14
Output
50 Ω N-N coaxial cable
10 dB attenuator
RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
a. Power off the analyzer and the 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 the GPIB address of the generator, ranging from 1 to 30.
f.Insert the SG flatness/spurious floppy disk (Item 17) 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:
HPress the Config... side key.
HPress the SG Type side key to s elect the manufacturer of the
generator for the GPIB command system: HP or Anritsu.
HPress the SG Address side key and set the generator address.
HPress 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 3--12.
5. Check the test results:
Check the Pass/Fail results displayed on the lower left of the screen
(see Figure 3--7).
If any tests fail, go to When the Auto Tests Fail on page 3--19.
RSA3303B & RSA3308B Analyzers Service Manual
3- 15
Performance Tests
Procedure 2
Figure 3- 7: Auto test result display example
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, which covers
the baseband and RF1 band, and Item 2, which covers the RF2 and RF3 bands
(RF2 and RF3 are for RSA3308B only).
Equipment
Required
PrerequisitesRefer to page 3--10
Two signal generators (Items 1 and 2)
One 50 Ω N-N coaxial cable (Item 10)
One 10 dB attenuator (Item 14)
One GPIB cable (Item 12, two required)
One SG flatness/spurious floppy disk (Item 17, two required)
3- 16
RSA3303B & RSA3308B Analyzers Service Manual
1. Prepare for the test:
Hook up the equipment as shown in the following figure.
Signal generator (Item 1)Signal generator (Item 2)
GPIB cable
GPIB cable
Performance Tests
RSA3303B/RSA3308B
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 the GPIB address of the generators, ranging from 1 to 30.
Assign a unique address to each instrument.
f.Insert the SG flatness floppy/spurious disk (Item 17) for the generator
(Item 2) 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:
HPress the Config... side key.
HPress the SG Type side key to s elect the manufacturer of the
generator (Item 1) for the GPIB command system: HP or Anritsu.
HPress the SG Address side key and set the generator address.
HPress the Cancel--Back (top) side key.
RSA3303B & RSA3308B Analyzers Service Manual
3- 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 3--7 on page 3--16).
If the instrument fails any tests, go to When the Auto Tests Fail on
page 3--19.
STOP. Steps 6 through 8 are the tests in the RF2 and RF3 bands for RSA3308B
only. For RSA3303B, skip to step 9.
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:
HPress the Config... side key.
HPress the SG Type side key to s elect the manufacturer of the
generator (Item 2) for the GPIB command system: HP or Anritsu.
HPress the GPIB Address side key and set the generator address.
HPress 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 3--7 on page 3--16).
If the instrument fails any tests, go to When the Auto Tests Fail on
page 3--19.
9. Disconnect the test equipment:
a. Disconnect the N-N cable from the analyzer input.
b. Turn off the analyzer and generators.
3- 18
c.Disconnect the GPIB cables from all the ports.
RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
When the Auto Tests Fail
If any test results in Fail (see Figure 3--7 on page 3--16), perform calibration,
referring to Auto Calibration on page 4--20, and then perform the auto tests
again.
1. Perform the auto calibration for the failed test item as shown in Table 3--5.
Table 3- 5: Procedure for failed test item
Failed test itemProcedure
BB FlatnessPerform the baseband flatness calibration.
Use the All Band Calibration on page 4--22, but select BB in
the service Cal menu.
IF Flatness, RF1
IF Flatness, RF2
IF Flatness, RF3
Perform the IF flatness calibration.
Refer to All Band Calibration on page 4--22 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.
Perform the RF flatness calibration.
Refer to All Band Calibration on page 4--22 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.
Perform the spurious calibration.
Use the All Band Calibration on page 4--22, 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, FurtherSpurious Test.
Further Spurious Test. Performs spurious test at the specified frequency.
1. Connect a USB mouse (Item 15) and keyboard (Item 16) 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.
RSA3303B & RSA3308B Analyzers Service Manual
3- 19
Performance Tests
4. Check the error log:
View the error log in the following location using the mouse and keyboard:
NOTE. For accessing Microsoft Windows XP on the analyzer, refer to the
(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 S tart (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.
3- 20
RSA3303B & RSA3308B Analyzers Service Manual
Manual Tests
The manual tests include the following items:
H10 MHz reference output
HAbsolute amplitude accuracy
HInput attenuator setting uncertainty
HSpectrum purity
rd
H3
HFrequency readout accuracy
HSpurious response
HDisplayed average noise level
HResidual response
order intermodulation distortion
Performance Tests
RSA3303B & RSA3308B Analyzers Service Manual
3- 21
Performance Tests
10 MHz Reference Output
Test
Check that the output frequency from the REF OUT connector (on the rear
panel) is within the specified range for the analyzer.
Equipment
Required
PrerequisitesRefer to page 3--10.
Frequency counter
CH1 input
50 Ω terminator
One frequency counter (Item 5)
One 50 Ω BNC coaxial cable (Item 9)
One 50 Ω terminator (Item 13)
The frequency counter must have been operating for a warm-up period
of at least 24 hours.
RSA3303B/RSA3308B (rear)
REF OUT
50 Ω BNC coaxial cable
Figure 3- 8: Initial test hookup
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 Figure 3--8.
b. Set the counter controls:
FunctionFrequency 1.................
Gate time2 s................
2. Check the frequency: Check that the frequency counter reads
10 MHz 1.2 Hz.
3. Disconnect the hookup: Disconnect the cable at REF OUT.
3- 22
RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
Absolute Amplitude
Accuracy Test
Check that the absolute amplitude error is within the specified range for the
analyzer. It uses a power meter and a power sensor to set the signal generator
output accurately.
Equipment
Required
PrerequisitesRefer to page 3--10.
One signal generator (Item 1)
One power meter (Item 6)
One power sensor (Item 7)
One 50 Ω N-N coaxial cables (Item 10)
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. When you use the Agilent 437B power meter, refer to Storing CalFactors in the Power Meter on page 4 --4.
a. Connect the power meter and the power sensor. See Fi gure 3--9 below.
Power meter
Power sensor
Sensor input
Figure 3- 9: Initial hookup for setting up the power meter and sensor
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 3--10 on page 3--24.
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.
RSA3303B & RSA3308B Analyzers Service Manual
3- 23
Performance Tests
Power meter
Power reference output
Figure 3- 10: 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 3--11.
Signal generator
Power meter
Output
Power sensor
Figure 3- 11: Hookup for setting the signal generator output
b. Set the signal generator controls:
Frequency10 MHz................
Level--10 dBm....................
c.Set the power meter control:
Frequency10 MHz................
d. Adjust the output level of the signal generator so that the power meter
reads --10 dBm 0.05 dBm.
3- 24
e.Disconnect the cable from the power sensor input.
RSA3303B & RSA3308B Analyzers Service Manual
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 RSA3303B/RSA3308B Input.See
Figure 3--12.
RSA3303B/RSA3308B
Signal generator
Output
50 Ω N-N coaxial cable
Figure 3- 12: Hookup for checking the a bsolute amplitude accuracy
b. Initialize the analyzer:
HPress the System key on the front panel.
HPress the Reset All to Factory Defaults side key.
c.Modify the default settings:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 10 MHz using
the numeric keypad.
HPress the Span key on the front panel.
HWith the Span side key, set the span to 10 MHz using the general
purpose knob.
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.
RSA3303B & RSA3308B Analyzers Service Manual
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Performance Tests
RF ( RSA3303B) / RF1 (RSA3308B) Band Test.
6. Modify the signal generator output:
a. Hook up the test equipment: Connect the signal generator output through
a50Ω N-N coaxial cable to the power sensor input. See F igure 3--11 on
page 3--24.
b. Modify the signal generator controls:
Frequency50 MHz................
Level--20 dBm....................
c.Modify the power meter control:
Frequency50 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 RSA3303B/RSA3308B Input.See
Figure 3--12 on page 3--25.
b. Calibrate the analyzer gain: Press Cal > Calibrate Gain.
c.Modify the analyzer controls:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 50 MHz using
the numeric keypad.
HPress the Amplitude key on the front panel.
HPress the RF Atten/Mixer side key to select RF Att.
HWith the RF Att side key, set the attenuation to 0 dB.
8. Check the amplitude:
a. Press the Peak key on the front panel to place the marker on the
signal peak.
3- 26
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.
RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
Input Attenuator Setting
Uncertainty Test
Check the input attenuator setting error is within the specified range for the
analyzer.
Equipment
Required
PrerequisitesRefer to page 3--10.
One signal generator (Item 1)
One 50 Ω N-N coaxial cables (Item 10)
1. Prepare for the test:
a. Set the generator controls:
Frequency50 MHz................
Amplitude--25 dBm................
RF outputOn................
b. Hook up the generator: Connect the generator output through a 50 Ω
N-N coaxial cable to the analyzer Input. See Figure 3--13.
RSA3303B/RSA3308B
Signal generator
Output
Figure 3- 13: Initial test hookup
c.Initialize the analyzer:
HPress the System key on the front panel.
HPress the Reset All to Factory Defaults side key.
RSA3303B & RSA3308B Analyzers Service Manual
50 Ω N-N coaxial cable
3- 27
Performance Tests
d. Modify the default settings:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 50 MHz using
the numeric keypad.
HPress the Span key on the front panel.
HWith the Span side key, set the span to 10 MHz using the general
purpose knob.
HPress the Amplitude key on the front panel.
HWith the Ref Level side key, set the reference level to --20 dBm
using the general purpose knob.
HPress the RF Atten/Mixer side key to select RF Att.
HWith the RF Att side key, 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 2 to 30 dB:
a. Press Amplitude > RF Att and set the attenuation (initially 2 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 0.5 dB .
e.Repeat substeps 3a through d for attenuation from 2 to 30 dB in 2 dB
steps.
4. Modify the generator controls:
Amplitude--5 dBm................
.)
X
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RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
5. Modify the analyzer controls:
a. Press the Amplitude key on the front panel.
b. With the Ref Level side key, set the reference level to 0 dBm using the
general purpose knob.
c.Make sure that RF Att is set 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 32 to 50 dB:
a. Press Amplitude > RF Att and set the attenuation (initially 32 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 0.5 dB .
X
e.Repeat substeps 7a through d forattenuationfrom32to50dBin2dB
steps.
8. Disconnect the test equipment: Disconnect the cable at the analyzer input.
.)
X
RSA3303B & RSA3308B Analyzers Service Manual
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Performance Tests
Spectrum Purity Test
Check that the spectrum purity is within the specified range for the analyzer.
Equipment
Required
PrerequisitesRefer to page 3--10.
Signal generator
One signal generator (Item 4)
One 50 Ω N-N coaxial cable (Item 10)
RSA3303B/RSA3308B
Output
50 Ω N --N coaxial cable
Figure 3- 14: Initial test hookup
1. Prepare for the test:
a. Initialize the analyzer:
HPress the System key on the front panel.
HPress the Reset All to Factory Defaults side key.
b. Modify the default settings:
HPress the Amplitude key on the front panel.
HPress the RF Atten/Mixer side key to select Mixer.
HWith the Mixer Level side key, set the level to --15 dBm.
HPress the Trace/Avg key.
HPress the side key Trace 1 Type... > Average.
HPress the Number Of Averages side key and set the value to 50
using the general purpose knob.
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RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
c.Set the generator controls:
Frequency1500 MHz................
Amplitude--5 dBm................
RF outputOn................
d. Hook up the signal generator: Connect the generator output through a
50 Ω N-N coaxial cable to the analyzer Input. See Figure 3--14.
2. Check phase noise for a span of 100 kHz:
a. Modify the analyzer controls:
HPress the Span key on the front panel.
HWith the Span side key, set the span to 100 kHz using the general
purpose knob or the numeric keypad.
HPress the RBW/FFT key on the front panel.
HPress the RBW/FFT side key to select Man.
HWith the RBW side key, set the RBW to 200 Hz.
b. Perform the C/N (Carrier-to-Noise ratio) measurement:
HPress the Measure > C/N > Meas Setup key.
HPress the Offset Frequency side key and set the value to 10 kHz
using the general purpose knob.
HPress the Noise Bandwidth side key and set the value to 2 kHz
using the general purpose knob.
c.Check against limits: Read the phase noise (C/No) at the bottom of the
screen. Confirm that the value is 100 dB/Hz or more.
3. Check phase noise for a span of 1 MHz:
a. Modify the analyzer controls:
HPress the Span key on the front panel.
HWith the Span side key, set t he span to 1 MHz using the general
purpose knob or the numeric keypad.
HPress the RBW/FFT key on the front panel.
HPress the RBW/FFT side key to select Man.
HWith the RBW side key, set the RBW to 2 kHz.
RSA3303B & RSA3308B Analyzers Service Manual
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Performance Tests
b. Perform the C/N measurement:
HSelect Measure > C/N > Meas Setup.
HPress the Offset Frequency side key and set the value to 100 kHz
using the general purpose knob.
HPress the Noise Bandwidth side key and set the value to 20 kHz
using the general purpose knob.
c.Check against limits: Read the phase noise (C/No) at the bottom of the
screen. Confirm that the value is 105 dB/Hz or more.
4. Check phase noise for a span of 5 MHz:
a. Modify the analyzer controls:
HPress the Span key on the front panel.
HWith the Span side key, set t he span to 5 MHz using the general
purpose knob or the numeric keypad.
HPress the RBW/FFT key on the front panel.
HPress the RBW/FFT side key to select Man.
HPress the Extended Resolution side key to select On.
HWith the RBW side key, set the RBW to 5 kHz.
b. Perform the C/N measurement:
HSelect Measure > C/N > Meas Setup.
HPress the Offset Frequency side key and set the value to 1 MHz
using the general purpose knob.
HPress the Noise Bandwidth side key and set the value to 200 kHz
using the general purpose knob.
c.Check against limits: Read the phase noise (C/No) at the bottom of the
screen. Confirm that the value is 125 dB/Hz or more.
5. Disconnect the test equipment: Disconnect the cable at the analyzer input.
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RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
3rdOrder Intermodulation
Distortion Test
Check that the 3
rd
order intermodulation distortion is within the specified range
for the analyzer .
Equipment
Required
PrerequisitesRefer to page 3--10.
Two signal generators (Items 2 and 4)
One power combiner (Item 8)
Three 50 Ω N-SMA coaxial cables (Item 11)
1. Prepare for the test:
a. Connect each generator output through a 50 Ω N-SMA coaxial cable to a
power combiner input. See the figure below.
RSA3303B/RSA3308B
Signal generator
Output
N-SMA cable
Signal generator
Power
combiner
N-SMA cable
Output
b. Connect the power combiner output through a 50 Ω N-SMA coaxial
cable to the analyzer Input.
c.Set the signal generator (Item 2) controls:
Frequency1999.85 MHz................
Level0 dBm....................
ALC BW100 Hz................
d. Set the signal generator (Item 4) controls:
Frequency2000.15 MHz................
Level0 dBm....................
ALC BW100 Hz................
RSA3303B & RSA3308B Analyzers Service Manual
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Performance Tests
e.Initialize the analyzer:
HPress the System key on the front panel.
HPress the Reset All to Factory Defaults side key.
f.Modify the default controls:
HPress the Frequency/Channel key on the front panel.
HThe Center Freq menu item is selected by default.
Set the frequency to 2 GHz using the numeric keypad.
HPress the Span key on the front panel.
HThe Span menu item is selected by default.
Set the span to 1 MHz using the general purpose knob.
HPress the Amplitude key on the front panel.
HThe Ref Level menu item is selected by default.
Set the level to 5 dBm using the general purpose knob.
HPress the RF Atten/Mixer side key to select Rf Att.
HPress the RBW/FFT key on the front panel.
HPress the RBW/FFT side key to select Man.
HPress the Extended Resolution side key to select On.
HPress the RBW side key and set the RBW to 2 kHz.
HPress Trace/Avg > Tra ce 1 Typ e... > Average.
HPress the Number Of Averages side key and set the value to 50
using the general purpose knob.
HPress the Marker Setup key.
HPress the Markers side key to select Delta.
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RSA3303B & RSA3308B Analyzers Service Manual
g. Modify the generator output level:
HPress Markers: A or " to place the marker on the signal of
1999.85 MHz.
HAdjust the generator (Item 2) output level so that the signal level is
--10 dBm.
HPress Markers: A or " to place the marker on the signal of
2000.15 MHz.
HAdjust 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:
HPress the Amplitude key on the front panel.
HPress the RF Att menu item and set the attenuation using the general
purpose knob (initially 10 dB).
Performance Tests
b. Measure the amplitude for the signals of 1999. 55 MHz and
2000.45 MHz:
HPress the Marker Setup key.
HPress the Select Marker side key to select 1.
HPlace the first marker at the signal of 1999.55 MHz using the
Markers: A or " key.
HPress the Select Marker side key to select 2.
HPlace 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 forattenuationfrom10to20dBin2dB
steps to find the lowest distortion value.
3. Check against limits:
Confirm that the lowest value meets the requirement of --74 dBc.
4. Disconnect the test equipment:
Disconnect the cable at the analyzer input.
RSA3303B & RSA3308B Analyzers Service Manual
3- 35
Performance Tests
Frequency Readout Test
Check that the frequency readout accuracy is within the specified range for the
analyzer at 10 MHz, 2 GHz, 5 GHz, and 7 GHz.
Equipment
Required
PrerequisitesRefer to page 3--10.
Signal generator
One signal generator (Item 2)
One 50 Ω N-N coaxial cable (Item 10)
RSA3303B/RSA3308B
Output
50 Ω N-N coaxial cable
Figure 3- 15: Initial test hookup
1. Prepare for the test:
a. Initialize the analyzer:
HPress the System key on the front panel.
HPress the Reset All to Factory Defaults side key.
b. Set the generator controls:
Frequency10 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 Figure 3--15.
2. Check frequency accuracy in the baseband:
a. Modify the analyzer default settings:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 10 MHz using
the numeric keypad.
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RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
HPress the Span key on the front panel.
HWith the Span side key, set t he span to 1 MHz using the general
purpose knob.
b. Measure peak frequency:
HPress the Peak key to place the marker on the signal peak.
HRead the marker readout. Confirm that the value is
10 MHz 1kHz.
HPress Measure > Carrier Frequency.
HRead the measurement result at the bottom of the screen. Confirm
that the value is 10 MHz 1.2 Hz.
3. Check frequency accuracy in the RF (RSA3303B) /RF1 (RSA3308B) band:
a. Modify the generator control:
Frequency2 GHz................
b. Modify the analyzer controls:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 2 GHz using the
numeric keypad.
c.Measure peak frequency:
HPress the Peak key to place the marker on the signal peak.
HRead the marker readout. Confirm that the value is
2 GHz 1.2 kHz.
HPress Measure > Carrier Frequency.
HRead the measurement result at the bottom of the screen. Confirm
that the value is 2 GHz 210 Hz.
STOP. Steps 4 and 5 are the tests in the RF2 and RF3 bands for RSA3308B only.
For RSA3303B, skip to step 6.
RSA3303B & RSA3308B Analyzers Service Manual
3- 37
Performance Tests
4. Check frequency accuracy in the RF2 band for RSA3308B:
a. Modify the generator control:
Frequency5 GHz................
b. Modify the analyzer controls:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 5 GHz using the
numeric keypad.
c.Measure peak frequency:
HPress the Peak key to place the marker on the signal peak.
HRead the marker readout. Confirm that the value is
5 GHz 1.5 kHz.
HPress Measure > Carrier Frequency.
HRead the measurement result at the bottom of the screen. Confirm
that the value is 5 GHz 510 Hz.
5. Check frequency accuracy in the RF3 band for RSA3308B:
a. Modify the generator control:
Frequency7 GHz................
b. Modify the analyzer controls:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 7 GHz using the
numeric keypad.
c.Measure peak frequency:
HPress the Peak key to place the marker on the signal peak.
HRead the marker readout. Confirm that the value is
7 GHz 1.7 kHz.
HPress Measure > Carrier Frequency.
HRead the measurement result at the bottom of the screen. Confirm
that the value is 7 GHz 710 Hz.
3- 38
6. Disconnect the test equipment: Disconnect the cable at the analyzer input.
RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
Spurious Response Test
Check that the spurious response is within the specified range for the analyzer.
Equipment
Required
PrerequisitesRefer to page 3--10.
Signal generator
One signal generator (Item 2)
One 50 Ω N-N coaxial cable (Item 10)
RSA3303B/RSA3308B
Output
50 Ω N-N coaxial cable
Figure 3- 16: Initial test hookup
1. Prepare for the test:
a. Initialize the analyzer:
HPress the System key on the front panel.
HPress the Reset All to Factory Defaults side key.
b. Modify the default controls:
HPress the Span key on the front panel.
HWith the Span side key, set the span to 10 MHz using the general
purpose knob.
HPress the RBW/FFT key on the front panel.
HPress the RBW/FFT side key to select Man.
HWith the RBW side key, set the value to 50 kHz using the general
purpose knob.
RSA3303B & RSA3308B Analyzers Service Manual
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Performance Tests
HPress the Trace/Avg key on the front panel.
HPress the Trace 1 Typ e.. . side key and select Average.
HPress the Number Of Averages side key and set the value to 50.
HPress the Marker Setup key.
HPress 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 Figure 3--16.
2. Check spurious response:
a. Modify the generator controls: Set the generator output frequency to the
value as shown in Table 3--6 (initially 10 MHz).
b. Modify the analyzer controls:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to the same value
as the generator output using the numeric keypad.
c.Measure the amplitude:
HPress the Marker Setup key.
HPress the Select Marker side key to select 1.
HPress the Peak key and then the Markers: B (marker down) key
once to place the first marker at the peak on the noise floor.
HPress the Select Marker side key to select 2.
HPress the Peak keytoplaceMarker2onthesignalpeak.
HRead the delta marker readout (Δ1--2) on the screen. Check that the
components other than the carrier meet the requirement as shown in
Table 3--6 (initially --73 dBc).
3- 40
RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
d. Repeat substeps a through c until all frequency settings listed in
Table 3--6 are checked.
Table 3- 6: Spurious measurement
BandFrequencySpurious response
Baseband10 MHz--73 dBc
RF (RSA3303B) / RF1 (RSA3308B)2GHz--73 dBc
RF2 (RSA3308B only)5GHz--70 dBc
RF3 (RSA3308B only)7GHz--70 dBc
3. Disconnect the test equipment: Disconnect the cable at the analyzer input.
RSA3303B & RSA3308B Analyzers Service Manual
3- 41
Performance Tests
Displayed Average Noise
Level Test
Check that the displayed average noise level is within the specified range for the
analyzer.
Equipment
Required
PrerequisitesRefer to page 3--10.
RSA3303B/RSA3308B
None
Figure 3- 17: Initial test hookup
1. Prepare for the test:
a. Initialize the analyzer:
HPress the System key on the front panel.
HPress the Reset All to Factory Defaults side key.
b. Modify the analyzer controls:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 10 MHz using
the general purpose knob.
HPress the Span key on the front panel.
HWith the Span side key, set t he span to 1 MHz using the general
purpose knob.
HPress the Amplitude key on the front panel.
HWith the Ref Level side key, set t he level to --30 dBm using the
general purpose knob.
HPress the RBW/FFT key on the front panel.
HPress the RBW/FFT side key to select Man.
HWith the RBW side key, set the value to 10 kHz using the general
purpose knob.
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RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
HPress the Trace/Avg key on the front panel.
HPress the Trace 1 Typ e.. . side key and select Average.
HPress the Number Of Averages side key and set the value to 50.
HPress Measure > Channel Power.
HPress Meas Setup > Channel Bandwidth 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 RF (RSA3303B) / RF1 (RSA3308B) band:
a. Modify the analyzer control:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 2 GHz using the
general purpose knob.
HPress the Amplitude key on the front panel.
HWith the Ref Level side key, set t he level to --50 dBm using the
general purpose knob.
HPress the RF Atten/Mixer side key to select RF Att.
HWith the RF Att side key, 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 RF (RSA3303B) / RF1 (RSA3308B) band:
a. Modify the analyzer control:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, 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.
RSA3303B & RSA3308B Analyzers Service Manual
3- 43
Performance Tests
5. Check noise at 7 GHz in the RF3 band for RSA3308B only:
a. Modify the analyzer control:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, 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.
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RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
Residual Response Test
Check that the residual noise level is within the specified range for the analyzer.
Equipment
Required
PrerequisitesRefer to page 3--10.
RSA3303B/RSA3308B
None
Figure 3- 18: Initial test hookup
1. Prepare for the test:
a. Initialize the analyzer:
HPress the System key on the front panel.
HPress the Reset All to Factory Defaults side key.
b. Modify the default settings:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 10 MHz using
the general purpose knob.
HPress the Span key on the front panel.
HWith the Span side key, set the span to 20 MHz using the general
purpose knob.
HPress the Amplitude key on the front panel.
HWith the Ref Level side key, set t he level to --30 dBm using the
general purpose knob.
RSA3303B & RSA3308B Analyzers Service Manual
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Performance Tests
HPress the RBW/FFT key on the front panel.
HPress the RBW/FFT side key to select Man.
HWith the RBW side key, set the RBW to 100 kHz using the general
purpose knob.
HPress the Trace/Avg key on the front panel.
HPress the Trace 1 Typ e.. . side key and select Average.
HPress the Number Of Averages side key and set the value to 50
using the general purpose knob.
2. Check residual response in the baseband:
a. Measure residual response:
HPress Scale/Lines (front panel) > View Lines...
HPress the Show Line side key to select Vertical.
HPress the Number Of Line key to select 1.
HWith the Line1 side key, set the value to 1 MHz using the numeric
keypad.
HPress the Show Line side key to select Horizontal.
HPress the Number Of Line key to select 1.
HWith the Line1 side key, 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.
3. Check residual response in the RF band (up to 3 GHz):
a. Modify the analyzer controls:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 1.5 GHz using
the numeric keypad.
HPress the Span key on the front panel.
3- 46
HWith the Span side key, set t he span to 3 GHz using the numeric
ke
ypad.
RSA3303B & RSA3308B Analyzers Service Manual
Performance Tests
b. Measure residual response:
HPress Scale/Lines (front panel) > View Lines...
HPress the Show Line side key to select Vertical.
HPress the Number Of Line key to select 1.
HPress the Line1 side key and set the value to 100 MHz.
HPress the Show Line side key to select Horizontal.
HPress the Number Of Line key to select 1.
HPress the Line1 side key and 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 at 100 MHz or more.
4. Check residual response in the RF1 band for RSA3308B only:
a. Modify the analyzer controls:
HPress the Span key on the front panel.
HWith the Stop Freq side key, set the frequency to 3.5 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 --90 dBm or less within the whole bandwidth.
5. Check residual response in the RF2 band for RSA3308B only:
a. Modify the analyzer controls:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, 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.
RSA3303B & RSA3308B Analyzers Service Manual
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Performance Tests
6. Check residual response in the RF3 band for RSA3308B only:
a. Modify the analyzer controls:
HPress the Frequency/Channel key on the front panel.
HWith the Center Freq side key, set the frequency to 7 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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RSA3303B & RSA3308B Analyzers Service Manual
Test Record
Performance Tests
Photocopy the following test record pages and use them to record the performance test results for your analyzer.
RSA3303B & RSA3308B Analyzers Service Manual
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Performance Tests
RSA3303B/RSA3308B Test Record
Serial Number:Certificate Number:
Calibration Date:
Technician:
10 MHz reference output test
Accuracy9,999,998.8 Hz10,000,001.2 Hz
Absolute amplitude accuracy test
FrequencyTest levelLow limitTest resultHigh limit
10 MHz--10 dBm--10.3 dBm-- 9 . 7 d B m
50 MHz--20 dBm--20.5 dBm--19.5 dBm
Input attenuator setting uncertainty test
AttenuationMeasurement (PX)Low limitTest result (PX-P
Carrier frequency meas.9,999,998.8 Hz10,000,001.2 Hz
2GHzMarker1,999,998.8 kHz2,000,001.2 kHz
Carrier frequency meas.1,999,999,790 Hz2,000,000,210 Hz
5GHzMarker4,999,998.5 kHz5,000,001.5 kHz
Carrier frequency meas.4,999,999,490 Hz5,000,000,510 Hz
7GHzMarker6,999,998.3 kHz7,000,001.7 kHz
Carrier frequency meas.6,999,999,290 Hz7,000,000,710 Hz
Spurious response test
FrequencyLow limitTest resultHigh limit
10 MHz--73 dBc
2GHz--73 dBc
5 GHz (RSA3308B only)--70 dBc
7 GHz (RSA3308B only)--70 dBc
Displayed average noise level test
FrequencyLow limitTest resultHigh limit
10 MHz--151 dBm/Hz
2GHz--150 dBm/Hz
3GHz--150 dBm/Hz
7 GHz (RSA3308B only)--142 dBm/Hz
Residual response test
BandFrequency rangeLow limitTest resultHigh limit
Baseband1to20MHz--93 dBm
RF (RSA3303B only)0.5to3GHz--90 dBm
RF1 (RSA3308B only)0.5to3.5GHz--90 dBm
RF2 (RSA3308B only)3.5to6.5GHz--85 dBm
RF3 (RSA3308B only)5to8GHz--85 dBm
3- 52
RSA3303B & RSA3308B Analyzers Service Manual
Adjustment Procedures
This section contains information needed to manually adjust the RSA3303B and
RSA3308B R eal-Time Spectrum Analyzers.
The section is divided into three subsections:
HGeneral information about adjusting the analyzer
HA list of equipment required to perform the adjustments
HThe procedures for adjusting the analyzer
Purpose
Adjustment Interval
Adjustment After Repair
This procedure returns the analyzer to conformance with its Warranted Characteristics as listed in Section 1, Specification. It can also be used to optimize t he
performance of the analyzer. For performance verification procedures, refer to
Section 4, Performance Verification.
Generally, these adjustments should be done every 12 months.
After the removal and replacement of a module due to electrical failure, perform
the adjustment procedures in this section.
Requirements for Performance
Before doing the adjustments, note the following requirements.
Personnel
Warm-Up Period
This procedure is only to be performed by trained service technicians.
This analyzer requires a 20 minute warm-up time in a 20 _Cto30_C environment before it is adjusted. Adjustments done before the operating temperature
has stabilized may cause errors in performance.
Test Equipment
RSA3303B & RSA3308B Analyzers Service Manual
Table 4--1 lists all test equipment required to adjust the analyzer.
4- 1
Adjustment Procedures
Equipment Required
Table 4--1 lists the test equipment required to adjust the RS A3303B/RSA3308B
analyzer.
Table 4- 1: Test equipment
Item number and
description
1.Signal generator
1
2.Signal generatorFrequency range: 10 MHz to 8 GHz;
3.Signal generatorFrequency range: 1 MHz to 8 GHz;
4.Waveform generatorArbitrary waveform; Two output