Saluki S3331B User manual

S3331 Series Handheld Spectrum Analyzer
User Manual
Saluki Technology Inc.

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The manual applies to the cable & antenna tester of the following models:
S3331Ahandheld spectrum analyzer (9kHz-3.6GHz).
S3331B handheld spectrum analyzer (9kHz-7.5GHz).
Standard Accessories of S3331 handheld spectrum analyzer
Item Name Qty
1 Main Machine 1 Set
2 AC/DCAdaptor 1 pcs
3 Battery 1pcs
4 CD 1 pcs
Options of the S3331 handheld spectrum analyzer:
Option Number Item
S3331-01 Tracking signal source1.5/3.2GHz (1.5GHz tracking source for S3331A, 3.2GHz tracking source for
S3331B)
S3331-02 FFT 1Hz RBW
S3331-03 Audio demodulation & measurement
S3331-04 EMI near field probe
S3331-05 Kit bag
S3331-06 Portable soft package
S3331-07 Backup battery
S3331-09 PC Software

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Preface
Thanks for choosing S3331 handheld spectrum analyzer produced by Saluki Technology Inc. Please read this quick starter manual
carefully for your convenience.
Manual No.
S3331-03-02
Version
Rev01 2017.02 Saluki Technology
ManualAuthorization
The information contained in this Manual is subject to change without notice. The power to interpret the contents of and terms used in
this Manual rests with Saluki.
Saluki Tech owns the copyright of this Manual which should notbe modified or tampered by any organization or individual, or reproduced
or transmitted for the purpose of making profit without its prior permission, otherwise Saluki will reserve the right to investigate and affix
legal liability of infringement.
Product Quality Assurance
The warranty period of the product is 18 months from the dateof delivery.
Product Quality Certificate
The product meets the indicator requirements of the manual at the time of delivery. Calibration and measurement are completed by the
measuring organization with qualifications specified by the state, and relevant data are provided for reference.
Quality/Environment Management
Research, development, manufacturing and testing of the product comply with the requirements of the quality and environmental
management system.
Precautions
"Warning" indicates danger. It reminds the user to pay attention to a certain operation process, operation method or similar situations.
Noncompliance with the rules or improper operation may result in personal injuries. You must fully understand the warning and all the
conditions in it shall be met before the next step
"Attention" indicates important prompts and no danger. It reminds the user to pay attention to a certain operation process, operation
method or similar situations. Noncompliance with the rules or improper operation may result in damage to the instrument or loss of
important data. You must fully understand the caution and all the conditions in it shall be metbefore the next step.

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Contacts
Service Tel: [phone]
Website: www.salukitec.com
Email: [e-mail]
Address: No. 367 Fuxing N Road,Taipei 105，Taiwan (R.O.C.)

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Content
1. BRIEF INTRODUCTION............................................................................................................................................................................. 7
1.1. Key Feature............................................................................................................................................................................................ 7
1.2. TypicalApplications................................................................................................................................................................................7
1.3. Measurement Functions......................................................................................................................................................................... 7
2. SAFETY INSTRUCTIONS.......................................................................................................................................................................... 9
2.1. Device safety.......................................................................................................................................................................................... 9
2.2. Precautions on personal safety..............................................................................................................................................................9
3. OVERVIEW................................................................................................................................................................................................11
3.1. Front Panel Overview............................................................................................................................................................................11
3.2. Function Keys description....................................................................................................................................................................12
3.3. Soft Keys..............................................................................................................................................................................................12
3.4. Interfaces on Side................................................................................................................................................................................13
3.5. User Interface.......................................................................................................................................................................................14
4. MENU DESCRIPTION.............................................................................................................................................................................. 15
4.1. Menu Structure..................................................................................................................................................................................... 15
4.2. AMP...................................................................................................................................................................................................... 16
4.3. BW/SWP..............................................................................................................................................................................................17
4.4. FREQ................................................................................................................................................................................................... 18
4.5. Marker..................................................................................................................................................................................................19
4.6. Meas.....................................................................................................................................................................................................21
4.7. Mode....................................................................................................................................................................................................23
4.8. PEAK.................................................................................................................................................................................................... 27
4.9. Span.....................................................................................................................................................................................................28
4.10. System.................................................................................................................................................................................................29
4.11. Trace.................................................................................................................................................................................................... 30
5. TYPICAL OPERATION ............................................................................................................................................................................ 33
5.1. Prepare.................................................................................................................................................................................................33
5.2. Continuous Signal Measurement.........................................................................................................................................................33
5.3. Measure two signals with small frequency interval..............................................................................................................................34
5.3.1. Resolving Two Signals of EqualAmplitude...................................................................................................................................... 34
5.3.2. Resolving Signals of DifferentAmplitudes.......................................................................................................................................36
5.4. N dB Bandwidth Measurement............................................................................................................................................................. 38
5.5. Adjacent Channel Power...................................................................................................................................................................... 39
5.6. Channel Power Measurement.............................................................................................................................................................. 40
5.7. Occupied Bandwidth Measurement.....................................................................................................................................................41
5.8. Use Pre-amplifier to Capture Weak Signals......................................................................................................................................... 42
5.9. Harmonic Distortion Measurement....................................................................................................................................................... 43

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5.10. TOI Distortion Measurement................................................................................................................................................................44
6. REMOTE CONTROL................................................................................................................................................................................ 46
6.1. OS supported.......................................................................................................................................................................................46
6.2. Software Installation Procedures.......................................................................................................................................................... 46
6.3. Connection...........................................................................................................................................................................................49
6.3.1. USB Port Connection ......................................................................................................................................................................49
6.3.2. LAN connection...............................................................................................................................................................................50
6.4. UI.......................................................................................................................................................................................................... 50
6.4.1. Key Zone.........................................................................................................................................................................................51
6.4.2. Softkey Zone ...................................................................................................................................................................................51
6.4.3. SCPI control Zone...........................................................................................................................................................................51
6.4.4. Display Zone....................................................................................................................................................................................51
6.4.5. Menu Bar......................................................................................................................................................................................... 51
7. TROUBLE SHOOTING............................................................................................................................................................................ 55
7.1. Start S3331 but the screen does not light............................................................................................................................................ 55
7.2. Keys not respond or the response is incorrect:.................................................................................................................................... 55
7.3. No signal display after normal power on:............................................................................................................................................. 55
7.4. The frequency of the signal display is not accurate:............................................................................................................................55
7.5. The amplitude of the signal is not accurate:.........................................................................................................................................55
8. S3331 SPECIFICATIONS......................................................................................................................................................................... 56
8.1. Frequency............................................................................................................................................................................................56
8.2. Amplitude.............................................................................................................................................................................................56
8.3. Input /Output.........................................................................................................................................................................................56
8.4. RBW.....................................................................................................................................................................................................57
8.5. DANL....................................................................................................................................................................................................57
8.6. Phase Noise.........................................................................................................................................................................................57
8.7. Sweep Time ......................................................................................................................................................................................... 58
8.8. Spurious Response..............................................................................................................................................................................58
8.9. Tracking Generator (Option) ................................................................................................................................................................58
8.10. General.................................................................................................................................................................................................58
S3331 HANDHELD SPECTRUM ANALYZER PROGRAMMING MANUAL......................................................................................................... 60

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1. Brief Introduction
S3331 handheld spectrum analyzer is designed for field use. It has a low weight, compact structure and a good performance. S3331 can
be operated in field for 4 hours with battery power supply. It also provides telecommunication ports such as USB and LAN for remote
data collection and remote control
1.1.Key Feature
Great Specifications
Wide frequency range
S3331A: 9kHz – 3.6GHz
S3331B: 9kHz - 7.5GHz
DANL: <–140 dBm for full span, min. <-161dBm (typ.)
Phase noise: <–100 dBc/Hz at 100 kHz offset
Fast sweep speed, <50ms for full span sweep.
Level accuracy: 1.5dB
Build - In Tracking source
Frequency 100kHz – 1.5GHz for S3331A, 100kHz - 3.2GHz for S3331B, covers most of the applications.
Output power -30dBm - 0dBm in 1dB steps .
With an external coupler, user can make approximate scalar network operations
1.2.Typical Applications
EMI debugging
RF design debugging
Interference analysis (spectrogram)
Education and training
Spectrum monitoring
Signal location
RF transmitter testing and maintenance
1.3.Measurement Functions
SpectrumAnalyzer
InterferenceAnalyzer (Spectrogram)
Field Strength

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Limit Line
User-defined mask
Channel Power
OBW(Occupied Bandwidth)
ACPR (Adjacent Channel Power Ratio)
AF/FM demodulation
Audio demodulation
Scalar network measurement with external coupler

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2. Safety Instructions
Please read safety instructioncarefully and Strictly follow！
We will spare no efforts to ensure that production process comply with latest safety standards so as to safeguard the safety of our users.
The design and tests of our products and accessory equipment comply with relevant safety standards. We have established quality
assurance system so that we can better supervise product quality and ensure that all products accord with standards in the system. To
maintain the sound state of equipment and ensure safe operation, please comply with the following instruction. Contact us if you have
any questions.
It is also your responsibility to use this product in correct manner. Suitable for industrial, laboratory and field uses, this equipment,
however, must be used in correct manner so as to prevent personal injuries and property damages. For problems caused by misuses,
liabilities rest on users. By proper use, it means that users should use this product according to prescriptions in the product document
and in the required conditions. As sufficient expertise is required, only professional technicians and people that have been strictly trained
and have mastered necessary skills are qualified to use this product. Please keep safety manual and product document in a proper
manner, and deliver them to the end user. To forestall personal injuries and property loss, please abide by these safety instructions.
Prior to using this product, please read carefully and comply with these instructions accordingly.
2.1.Device safety
a) Use designated packing container in shipping and avoid falling or violent collisions in moving, which may cause damages to the
device.
b) Use AC-DC adapter shipped with the device to supply power/charge to the product. Using other power adapters may cause
damages to internal hardware.
c) Ensure that power supply is well connected to the ground to prevent damages to the device caused by poor connection or false
connection.
d) Injection of DC signal into input end is prohibited. Signal power needs to be lower than 0.5W. If not, damage to the device may
occur.
e) If device uses external or internal batteries, replace these batteries with the same or equivalent type of batteries. When using other
types of batteries, blast may occur.
f) Both insertions of objects into the gap of the device housing and dumping of liquids over device housing or into device are
prohibited, which may cause short circuit, electric shock, fire orpersonal injuries.
g) Notches or gaps in the device, designed to help internal ventilation and whereby prevent overheat, must not be covered. The device
must not be put on couch, wrapped with carpet, or placed inairtight housing unless ventilation is good
h) This device must not be placed on radiator, dish heater and other heating devices. Ambient temperature must not surpass the
maximal temperature prescribed in this manual
i) Attention: Once this device is on fire, it may release toxic gases or liquids.
2.2.Precautions on personal safety.
a) When moving the device, use proper tools and move the device softly so as to avoid personal injuries caused by the falling of the
device.
b) Device should be proper grounded so as to prevent personal injuries caused by poor or false grounding

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c) When cleaning the device, please unplug the device to avoid electric shock. Use dry or moist soft cloth to clean the device. Do not
clean the internal of the device.
d) Before using this device, personnel need to be trained. When using the device, concentration is required. Operation by
unqualified people may causepersonal injuries and property losses.
e) Use of this device when power line is broken is prohibited. Regular check on power line is necessary. Proper measures should
be taken to keep power line in good state and prevent stumbleand electric shock.
f) Field use of the device when there is lightning is prohibited, which may cause personal injuries andproperty loss.

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3. Overview
This chapter will help the user get to know S3331 quickly. This chapter includes introductions of:
Front Panel
Interface on side
UI
3.1. Front Panel Overview
This Section will give a detailed introduction to the front panel of S3331. You can get generally familiar with the basic application of the
panel keyboard of the instrument by reading it. The front panel of S3331 handheld spectrum analyzer is as shown below:
Figure 3-1 Front Panel of S3331 handheld spectrum analyzer
The front panel of S3331 handheld spectrum analyzer is composed of various parts, including ON/OFF key, reset key, function key area,
number pad (character key) area and LED indicator.
No. Description No. Description
①LCD screen ⑦Up/Down Arrow Key
②Soft Keys ⑧Number Key Zone
③Function Keys ⑨Tracking Source Output
④Preset Key ⑩LAN Port

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No. Description No. Description
⑤Power Switch ⑪USB Port
⑥Knob ⑫RF input
3.2.Function Keys description
Frequency settings.
Include Start Frequency, Stop frequency, center frequency
Frequency span setting
Amplitude Settings.
Include Reference level, antenuator, pre-amplifier, scale settings.
Bandwidth/Sweep settings.
Include RBW, VBW, average, sweep time settings.
Trace settings:
Include detector, max hold, min hold settings
Auto measurement
Mode settings
Include tracking source settings, demodulation settings, trigger, pass-fail functions
Measurement mode selection:
Include Spectrum, adjacent channel power, occupied bandwidth, Channel Power etc.
System settings
Marker functions
Peak search functions
3.3.Soft Keys
When press a function key, a soft key menu will appear on the bottom of the screen. User can use a row of physical key (F1 - F6) to
select the soft key show on screen. Please see the figure below.

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Figure 3-2 Soft Keys on S3331
3.4.Interfaces on Side
Figure 3-3 Side View of S3331 Handheld Spectrum Analyzer
No. Description No. Description
①External Trigger Input (BNC) ④Ear phone interface
②Reference Clock I/O (BNC) ⑤Power adapter interface

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No. Description No. Description
③USB Port ⑥Battery hatch
3.5.User Interface
Figure 3-4 User Interface of S3331 Handheld spectrum analyzer
NO. Name
①Trace Display Format
②Detector Type
③Attenuator
④RBW
⑤VBW
⑥Trace
⑦Sweep time
⑧Span
⑨Center Frequency
⑩Scale
⑪Reference level
⑫Battery Status

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4. Menu Description
This chapter will provide a full function – menu mapping and will give descriptionof each menu option.
4.1.Menu Structure
This section provides the structure of all buttons and soft-keys. Detail function description will be provided in section 4.2.
S3331 has following function keys on front panel. Following paragraphs will show the menu structure of these keys.
AMP
BW/SWP
FREQ
MARKER
MEAS
MODE
PEAK
SPAN
SYS
TRACE
In following paragraphs, F1-F6 are corresponding keys to operate the menu shown in the screen. Different menu levels will be shown in
different colors.
Level 1 Level 2 Level 3 Level 4

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4.2.AMP
Pop up menus related to parameter setting ofAmplitude, including [Reference Level], [Attenuator▶], [Preamplifier ON OFF], [Scale Type
Logarithm Linear], [Scale/Division], [Ref Unit], [Ref Offset]. Please refer to following diagram for the menu structure.
Ref Level
Menu description: The reference level can be adjusted with the number keys, step keys or knob. The reference level corresponds to the
top of the coordinate top. Measure signal at reference level position to get highest accuracy. The input attenuator of the signal/spectrum
analyzer is coupled to the reference level, which can be automatically changed to avoid compression of input signal.
[Attenuator Auto Man]
Menu description: In the manual mode, set attenuator to lower the distortion of large signal. Maximum can be set to 39dB
[Preamplifier ON OFF]
Menu description: to control the ON OFF status of the preamplifier. Preamplifier is provided as a standard component.
[Scale/Div]
Menu description: to select the scale/division 1, 2, 4, 10dB/division. This menu is only valid when the scale type is logarithm.
[Scale type Log Lin]
Menu description: to select the Y Axis Scale Type as Logarithm or Linear. In general, the logarithm scale unit is dBm and the linear
scale unit is mV. Other unit types will be manually selected through the [Ref Unit].
[Ref Unit]
Menu description: to select the Ref unit from [dBm], [dBuW], [dBpW], [dBmV], [dBuB], [W], [V]. The instrument will automatically
calculate the trace data and marker readout based on theY axis scale unit.
[Ref Offset]
Menu description: to introduce offset for all amplitude readout (e.g., reference level and marker amplitude). It will not change the trace
position on the screen. This offset unit is dB and is not affected by the scale and unit. Use number keys, stepping keys or knob to input
the offset value.

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4.3.BW/SWP
Pop up the soft menus for setting of resolution bandwidth ,video bandwidth and sweep, including [RBW Auto Manual], [RBW Mode Det
Count], [VBWAuto Manual], [Average], [SweepTime], [SweepPoint], [Sweep Single], [Sweep Count], [EMI BW]
[RBWAuto Manual]
Menu description: to change the resolution bandwidth of spectrum analysis, ranging from 1Hz to 3MHz, which is stepped by 1, 3, 5. The
resolution bandwidth can be changed with the number keys, step keys and knob. The shaded character indicates the currently selected
mode.
[RBW Mode Def Count]
Menu description: Manually change the RBW by step or continuously.
[VBWAuto Manual]
Menu description: to change the video bandwidth within the active function area, ranging from 10Hz to 20MHz, which is stepped by 1, 3,
5. Use number keys, stepping keys or knob to changeThe current mode is shaded.
[Average]
Menu description: to smooth the trace based on the average factor N.
[Sweep timeAuto Manual]
Menu description: to change the sweep time of signal/spectrum analyzer by number keys, stepping keys or knob. When it is under
Manual mode, it indicates that sweep time can be set manually. When it is under Auto mode, the sweep time will be automatically
coupled based on resolution bandwidth, span and video bandwidth
The sweep time is coupled with the sweep type, resolution bandwidth, video bandwidth, average function and span. Changing those
parameters will result in changeof the sweep time or triggering of the limit setting of sweep time.
[Sweep Continuous] / [ Sweep Single]
Menu description: to set continuous sweep or single sweep. Continuous sweep is the default measurement control method; when
enable [Sweep Single], sweep will be done only one time.
[EMI BW]
Menu description: to enable/disable EMI BW function. When [EMI BW] is enabled, user can select EMI bandwidth from 1MHz, 120kHz,

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30kHz, 9kHz.
4.4.FREQ
The [Frequency] key on the front panel is used to set parameters related to the signal/spectrum analyzer frequency, including [Center
Frequency], [Start Frequency], [Stop Frequency], [CF Step Auto ON OFF], [Frequency Offset]. User can configure the frequency
measurement scope through the [Start Frequency] and [Stop Frequency], or through the [Center Frequency] and [Span]. Press the
[Frequency] key to enable any soft menu from [Center Frequency], [Start Frequency] and [Stop Frequency], and corresponding
parameter input area will display current parameters.
Following diagram gives a direct view of the menu structure
[Center Freq]
Menu description: to enable the center frequency and set the signal/spectrum analyzer into the center frequency/span mode. Use
number keys, stepping keys or knob to change the center frequency. If the set center frequency is inconsistent with the current span, the
settings will automatically adjusted to the value best suitable fordesired frequency
[Start Freq]
Menu description: to enable the start frequency and set thesignal/spectrum analyzer into thestart frequency/stop frequency mode. Use
number keys, stepping keys or knob to change the start frequency. In changing the start frequency, if the selected start frequency is
larger than the stop frequency, the latter one will automatically increase till equaling to the sum of start frequency plus minimum span
[Stop Freq]
Menu description: to enable the stop frequency and set the signal/spectrum analyzer into the start frequency/stop frequency mode. Use
number keys, stepping keys orknob to change the stop frequency. In changing stop frequency, if the selected stop frequency is less than
the start frequency, the latter one will automatically decrease till equaling to the difference of stop frequency minus minimum span.
[CF StepAuto Manual]
Menu description: to change the steps of center frequency, start frequency or stop frequency. When the center frequency is active,
press the step key, the frequency step changes 1/10 of the span. When it is under Manualmode, use the number keys, stepping keys or
knob for change. At thistime, reactivate the [Center Frequency], and press thestep key, the center frequency will changeby setting step.
This function is very useful to quickly change the center frequency to the input signal harmonic. For example, observe the harmonic of

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300MHz input signal, and set the [CF Step Auto Manual] as Manual, and input 300MHz. If the current center frequency is 300MHz, press
the stepping key to increase the center frequency to 600MHz. Press the stepping key again to increase the center frequency by 300MHz
to 900MHz. The shaded status of [CF Step Auto Manual] menu indicates whether the step is set as Auto or Manual. When the step is
under Manual, select theAuto from [CF StepAuto Manual] to return toAuto status.
[Frequency Offset]
Menu description: to add the set frequency offset to the displayed frequency value, including marker frequency value, but this does not
affect the sweep span. Use number keys, stepping keys or knob to change the offset.
[Frequency Ref]
Menu description: to switch between internal reference signal and external reference signal. When use external reference, need to
connect a 10MHz reference source to the Ext Ref port.
4.5.Marker
Pop up the soft menu related to markers, including [Marker 1 2 3 4 5], [Trace 1 2 3 4 5], [Delta], [Normal], [OFF], [All off], [Marker Table
ON/OFF], [Marker ->], and [Marker Function].
[Marker 1 2 3 4 5]
Menu description: S3331 supports 5 markers simultaneously. Only one is activated. [Marker 1 2 3 4 5] is used to select the activated
marker. If the selected marker is not created, user can use [Normal] or [Delta] to create andactivate the marker.
[Trace 1 2 3 4 5]
Menu description: Move the selected marker to other traces.

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[Normal]
Menu description: Create a new normalmaker, or change theactive marker from a delta marker to a normal marker. Normal marker will
information is displayed on screen (X axis value, Yaxis value)
[Delta]
Menu description: Create new reference marker/delta marker, or add a reference marker to the active normal marker. The reference
marker will be set at the same X-axis value of the delta maker. If user want to move the reference marker, first move the delta marker to
the wanted place then press [Delta] again, then the reference marker will move to the same position. Delta marker information will be
display on screen ( X axis,Y axis value difference between reference marker anddelta marker).
[Off]
Menu description: Turn off the selected marker.
[All Off]
Menu description: Turn off all markers.
[Marker Table On Off]
Menu description: to turn on/off the marker table display. Where there are many markers, it is convenient for data measurement.
[Marker Function]
Menu description: The [Marker Function] key is used for turning on the control instrument marker functions. The Marker Function
performs post-processing on the marker data. Its soft menu includes [Marker Noise ON/OFF], [NdB ON/OFF], [Freq Count]
[Marker Noise On Off]
Menu description: when this menu is ON, it activates the noise maker. Read out the noise power that normalizes the noise into
1Hz bandwidth near the activemarker.At that time, the detector is under Sample Detector mode.
[Freq Count ]
Menu description: to turn on or off marker Freq Count. If there is no active marker, enabling this function will activate an active
marker at the center of screen. The Marker Count readout is not affected by the Frequency Offset. To facilitate normal function of
Freq Count, the SPAN/RBW should be less than 500.
[NdB ON/OFF]
Menu description: to turn on or off the NdB measurement of bandwidth values descending from signal peak point. You can input
the NdB value to be measuredfrom the front panel.
[Marker->]
Pop up soft menus related to Marker->Function. Such menus are related to the frequency, span and marker type
[Marker → CF]
Menu description: to set the Center Frequency equal to the Marker Frequency. It can quickly move the signal tothe center position
of the screen.
[Marker → CF Step]
Menu description: to set the Frequency Step equal to the Marker Frequency. The menu changes the value of frequency step.
[Marker → Start]