Unit UTS3000B/A Series User manual

UTS3000B/ASeries Spectrum Analyzer
User’s Manual
REV 0
2022.09

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Preface
Thank you for purchasing this brand new product. In order to use this product safely and correctly, please
read this manual thoroughly, especially the safety notes.
After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably
close to the device, for future reference.
Copyright Information
Copyright is owned by Uni-Trend Technology (China) Co., Ltd.
UNI-T products are protected by patent rights in China and other countries, including issued and pending
patents. Uni-Trend reserves the rights to any product specification and pricing changes.
Uni-Trend Technology (China) Co., Ltd. all rights reserved. Trend reserves all rights. Information in this
manual supersedes all previously published versions. No part of this manual may be copied, extracted or
translated by any means without the prior permission of Uni-Trend.
UNI-T is the registered trademark of Uni-Trend Technology (China) Co., Ltd.

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Warranty Service
The instrument has a warranty period of three year from the date of purchase. If the original purchaser
sells or transfers the product to a third party within three year from the date of purchase of the product, the
warranty period of three year shall be from the date of the original purchase from UNI-T or an authorized
UNl-T distributor. Accessories and fuses, etc. are not included in this warranty.
If the product is proved to be defective within the warranty period, UNI-T reserves the rights to either repair the
defective product without charging of parts and labor, or exchange the defected product to a working
equivalent product (determined by UNI-T). Replacement parts, modules and products may be brand new, or
perform at the same specifications as brand new products. All original parts, modules, or products which were
defective become the property of UNI-T.
The "customer" refers to the individual or entity that is declared in the guarantee. In order to obtain the
warranty service, “customer “must inform the defects within the applicable warranty period to UNI-T, and
perform appropriate arrangements for the warranty service.
The customer shall be responsible for packing and shipping the defective products to the individual or entity
that is declared in the guarantee. In order obtain the warranty service, customer must inform the defects within
the applicable warranty period to UNI-T, and perform appropriate arrangements for the warranty service. The
customer shall be responsible for packing and shipping the defective products to the designated maintenance
center of UNI-T, pay the shipping cost, and provide a copy of the purchase receipt of the original purchaser. If
the products is shipped domestically to the purchase receipt of the original purchaser. If the product is shipped
to the location of the UNI-T service center, UNI-T shall pay the return shipping fee. If the product is sent to any
other location, the customer shall be responsible for all shipping, duties, taxes, and any other expenses.
The warranty is inapplicable to any defects, failures or damages caused by accident, normal wear of
components, use beyond specified scope or improper use of product, or improper or insufficient maintenance.
UNI-T is not obliged to provide the services below as prescribed by the warranty:
a) Repair damage caused by installation, repair or maintenance of personnel other than service
representatives of UNI-T;
b) Repair damage caused by improper use or connection to incompatible equipment;
c) Repair any damages or failures caused by using power source not provided by UNI-T;
d) Repair products that have been changed or integrated with other products (if such change or integration
increases time or difficulty of repair).
The warranty is formulated by UNI-T for this product, replacing any other express or implied warranties. UNI-T
and its distributors refuse to give any implied warranty for marketability or applicability for special purpose. For
violation of the warranty, repair or replacement of defective products is the only and all remedial measure
UNI-T provides for customers.
No matter whether UNI-T and its distributors are informed of any possible indirect, special, occasional or
inevitable damage in advance, they assume no responsibility for such damage.

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1. Overview
Overview of UTS3000B/A
Overview of Front Panel
User Interface
Overview of Rear Panel
This chapter is to introduce the main functions and features of UTS3000B/A spectrum analyzer, and brief
introduce the front and rear panel keys and symbols.

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Overview of UTS3000B/A
UTS3000B/A is a swept spectrum analyzer with frequency range of 9kHz to 8.4GHz. It can be used as the
main equipment to set up automatic control system. This instrument can also meet different test and
application needs in the functional/terminal/QA test systems required in the electronics manufacturing
industry.
Main Function and Feature
The main functions and features of UTS3000B/A spectrum analyzer as follows：
High sensitivity measurement
Frequency range 9kHz-8.4GHz
Display average noise level lower to -161dBm/Hz
Phase noise lower to -98dBc/Hz（1 GHz，10 kHz offset）
Frequency range of tracking source 100 kHz~6 GHz
Accuracy of frequency meter reach to 1Hz
The minimum resolution bandwidth is 1Hz
Limiting value setup of Pass/fall, it can determine trace signal by pass/fall test
Six trace lines display in the same time
USB/LAN interface, remote control the instrument by SCPI command
10.1 inch 1280×800 high capacitance touch screen

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Overview of Front Panel
Figure 1-1 Front Panel
1. Display Screen: display area, touch screen.
2. Measurement: the main functions to active spectrum analyzer, including：
FREQ: press this key to enable center frequency function and enter the frequency setup menu
AMPT: press this key to enable reference level function and enter amplitude setup menu
BW: press this key to enable resolution bandwidth function and enter control bandwidth, visualize
proportions menu
Auto: searching signal automatically and place the signal at the center of the screen
Sweep: set up sweep time, select sweep, trigger and demodulation type
Trace: set up trace line, demodulation mode and trace line operation
Marker: this maker key is to select marked number, type, attribute, tag function, and list and to
control the display of these markers.
Peak: place a marker at the amplitude peak value of signal and control this marked point to perform
its function
3. Advanced Functional Key: to active the advanced measurement of spectrum analyzer, these
function includes：
Meas Setup: set average/hold time, average type, display line and limiting value
Meas: access to the menu of functions for measuring transmitter power, such as adjacent channel
power, occupied bandwidth, and harmonic distortion
Mode: advanced measurement
4. Utility Key: the main functions to active spectrum analyzer, including：
Save: press this key to enter save interface, the types of files the instrument can save include state,

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trace line + state, measurement data, limit, correction and export.
System: access to the system menu and set up the relevant parameters.
Default: press it to reset the setting to the default.
TG: the relevant setting of tracking source output terminal. Such as signal amplitude, amplitude
offset of tracking source. This key will light up when the trace source output is working.
Single: press this key to perform single sweep. press it again to change it to continuous sweep.
Touch/Lock: touch switch, press this key will indicate red light.
5. Data Controller: direction key, rotary knob and numeric key, to adjust the parameter, such as
center frequency, start frequency, resolution bandwidth and make position.
Note
Esc Key: If the instrument is in remote control mode, press this key to return to local mode.
6. RF input 50Ω: this port is used to connect the external input signal, the input impedance is 50Ω
（N-Female connector）.
Warning
It is forbidden to load the input port with a signal that does not meet the rated value, and
ensure that the probe or other connected accessories are effectively grounded to avoid
equipment damage or abnormal function. RF IN port can only withstand an input signal power
of no more than +30dBm or a DC voltage input of 50V.
7. Gen Output 50Ω（Tracking Source）: This N- Female connector is used to as the source output of
the built-in tracking generator. The input impedance is 50Ω.
Warning
It is forbidden to load input signals on the output port to avoid damage or abnormal function.
8. Loudspeaker: display analog demodulation signal and warning tone.
9. Headphone Jack: 3.5 mm.
10. USB Interface: to connect external USB, keyboard and mouse.
11. ON/OFF Switch: short press to active the spectrum analyzer. In on-state, short press ON/OFF
switch will change the state to standby mode, all function will also be off.

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User Interface
Figure 1-2 User Interface
1. Working mode: RF analysis, vector signal analysis, EMI, analog demodulation.
2. Sweep/Measuring: Single / continuous sweep, tap the screen symbol to quick step through the
mode.
3. Measuring bar: Display the measurement information which includes input impedance, input
attenuation, presetting, correction, trigger type, reference frequency, average type, and
average/hold. Touch screen sign to quick switch these mode.
4. Trace Indicator: Display the trace line and detector message which includes number of trace line,
trace type and detector type.
Note
The first line is display the number of trace line, color of number and trace should be the same. The
second line is display the corresponding trace type which includes W (Clear/Write),A(Average), M (Max
Hold), m (Min Hold). The third line is display detector type which including S (sample), P (Peak), p
(Negative), N (Normal), A (Average), and f (trace operation). Detection types are displayed in white
letters.
Tap screen sign to quick switch different modes, different letter presents different mode：
Letter in highlight white color, it presents the trace is being update;
Letter in grey color, it presents the trace is not update;
Letter in grey color with strikethrough, it presents the trace will not be update and display；
Letter in white color with strikethrough, it presents the trace is being update but no display; this
case is useful for trace mathematical operation.

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5. Display Scale: Scale value, scale type (logarithm, linear), scale value in linear mode cannot
change.
6. Reference Level: Reference level value, reference level offset value.
7. Result of Cursor Measurement: Display the current result of cursor measurement which is
frequency, amplitude. Display time in zero span mode.
8. Panel Menu: Menu and function of hard key, which includes frequency, amplitude, bandwidth, trace
and marker.
9. Lattice Display Area: Trace display, marker point, video triggering level, display line, threshold line,
cursor table, peak list.
10. Data display: Center Frequency value, span, start frequency, stop frequency, frequency offset,
RBW, VBW, sweep time and points.
11. Function Setting: quick screenshot, file system, setup system, help system and file storage .
Quick Screenshot : screenshot will save in the default file; if there has an external storage, it is
preferentially saved to external storage.
File System : user can use file system to save the correction, limiting value, measuring result,
screenshot, trace, state or other file into internal or external storage, and it can be recall.
System information : view the basic information and option.
Help System : Help guides.
File Storage : Import or export state, trace + state, measuring data, limiting value and correction.
System Log Dialog Box: Click blank space on the right of file storage to enter system log to check
the operation log, alarm and hint information.
12. Connection Type: Display connecting state of mouse, USB and screen lock.
13. Date and Time: Display the date and time.
14. Full Screen Switch: Open full screen display, the screen is stretched horizontally and the right
button is automatically hidden.

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Overview of Rear Panel
Figure 1-3 Rear Panel
1. 10MHz Reference Input: Spectrum analyzer can use internal reference source or as an external
reference source.
If the instrument detects that the [REF IN 10MHz] connector is receiving a 10MHz clock signal from
an external source, the signal is automatically used as the external reference source. The user
interface status displays "Freq Ref: Ext". When the external reference source is lost, exceeded or
not connected, the instrument reference source is automatically switched to the internal reference
and the measuring bar on the screen will show "Freq Ref: In".
Warning
It is forbidden to load the input port with a signal that does not meet the rated value, and ensure
that the probe or other connected accessories are effectively grounded to avoid equipment
damage or abnormal function.
2. 10MHz Reference Output: Spectrum analyzer can use internal reference source or as an external
reference source.
If the instrument uses an internal reference source, [REF OUT 10 MHz] connector can output
10MHz clock signal generated by the instrument’s internal reference source, which can be
used to synchronize other devices.

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Warning
It is forbidden to load input signals on the output port to avoid damage or abnormal function.
3. Trigger IN: If spectrum analyzer uses an external trigger, the connector receives the rising of falling
edge of an external trigger signal. The external trigger signal is feed in spectrum analyzer by BNC
cable.
Warning
It is forbidden to load the input port with a signal that does not meet the rated value, and ensure
that the probe or other connected accessories are effectively grounded to avoid equipment
damage or abnormal function.
4. HDMI Interface: HDMI video signal output interface.
5. LAN Interface: TCP/IP port for remote control connecting.
6. USB Device Interface: Spectrum analyzer can use this interface to connect a PC, which can
be remote control by the software on the computer.
7. Power Switch: AC power switch, when the switch is enabled, the spectrum analyzer enters
standby mode and the indicator on the front panel lights up.
8. Power Interface: Power input power.
9. Burglar-proof Lock: Protect the instrument away from thief.
10. Handle: Easy to move the spectrum analyzer.
11. Dustproof Cover: Take off dustproof cover and then to clean the dust.

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2. User Guide
Inspect Product and Packing List
Safety Instruction
Environmental Requirements
Connecting Power Supply
Electrostatic Protection
Preparation Work
Usage Tip
Touch Operation
Remote Control
Help Information
Operating Mode
This chapter is to introduce the safety instructions and basic information about the use of spectrum
analyzer.

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Inspect Product and Packing List
When you received the instrument, please inspect the packaging and packing list as follows,
Inspect whether the packaging box is broken or scratched caused by external force, and
further check whether the instrument appearance is damaged. If you have any questions
about the product or other problems, please contact with distributor or the local office.
Take out the goods carefully and check with the packing list.
Safety Instruction
This chapter contains information and warnings that must be observed. To ensure that the instrument is
operating under the safety conditions. In addition to the safety precautions indicated in this chapter, you
must also follow accepted safety procedures.
Safety Precautions
Warning
Please follow the following guidelines to avoid possible electric shock and risk to
personal safety.
Users must follow the following conventional safety precautions in operation, service and
maintenance of this device. UNI-T will not be liable for any personal safety and property
loss caused by the user’s failure to follow the following safety precautions. This device is
designed for professional users and responsible organizations for measurement purposes.
Do not use this device in any way not specified by the manufacturer. This device is only for
indoor use unless otherwise specified in the product manual.
Safety Statements
Warning
“Warning” indicates the presence of a hazard. It reminds users to pay attention to a certain
operation process, operation method or similar. Personal injury or death may occur if the
rules in the “Warning” statement are not properly executed or observed. Do not proceed to
the next step until you fully understand and meet the conditions stated in the “Warning”
statement.
Caution
“Caution” indicates the presence of a hazard. It reminds users to pay attention to a certain
operation process, operation method or similar. Product damage or loss of important data
may occur if the rules in the “Caution” statement are not properly executed or observed. Do
not proceed to the next step until you fully understand and meet the conditions stated in
the “Caution” statement.
Note
“Note” indicates important information. It reminds users to pay attention to procedures,
methods and conditions, etc. The contents of the “Note” should be highlighted if necessary.

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Safety Signs
Danger
It indicates possible danger of electric shock, which may cause personal
injury or death.
Warning
It indicates that you should be careful to avoid personal injury or product
damage.
Caution
It indicates possible danger, which may cause damage to this device or other
equipment if you fail to follow a certain procedure or condition. If the “Caution”
sign is present, all conditions must be met before you proceed to operation.
Note
It indicates potential problems, which may cause failure of this device if you
fail to follow a certain procedure or condition. If the “Note” sign is present, all
conditions must be met before this device will function properly.
AC
Alternating current of device. Please check the region’s voltage range.
DC
Direct current of device. Please check the region’s voltage range.
Grounding
Frame and chassis grounding terminal.
Grounding
Protective grounding terminal.
Grounding
Measuring grounding terminal.
OFF
Main power off.
ON
Main power on.
Power
Supply
Standby power supply: when the power switch is turned off, this device is not
completely disconnected from the AC power supply.
CAT I
Secondary electrical circuit connected to wall sockets through transformers or
similar equipment, such as electronic instruments and electronic equipment;
electronic equipment with protective measures, and any high-voltage and
low-voltage circuits, such as the copier in the office.
CAT II
CATII: Primary electrical circuit of the electrical equipment connected to the
indoor socket via the power cord, such as mobile tools, home appliances, etc.
Household appliances, portable tools (e.g. electric drill), household sockets,
sockets more than 10 meters away from CAT III circuit or sockets more than
20 meters away from CAT IV circuit.
CAT III
Primary circuit of large equipment directly connected to the distribution board

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and circuit between the distribution board and the socket (three-phase
distributor circuit includes a single commercial lighting circuit). Fixed
equipment, such as multi-phase motor and multi-phase fuse box; lighting
equipment and lines inside large buildings; machine tools and power
distribution boards at industrial sites (workshops).
CAT IV
Three-phase public power unit and outdoor power supply line equipment.
Equipment designed to “initial connection”, such as power distribution system
of power station, power instrument, front-end overload protection, and any
outdoor transmission line.
Certificati
on
CE indicates a registered trademark of EU.
Certificati
on
UKCAindicates a registered trademark of United Kingdom.
Certificati
on
ETL indicates a registered trademark of Intertek.
Waste
This product complies with the marking requirements of WEEE Directive
(2002/96/EC). This additional label indicates that this electrical / electronic
product must not be discarded in household waste.
EEUP
This environment-friendly use period (EFUP) mark indicates that dangerous
or toxic substances will not leak or cause damage within this indicated time
period. The environment-friendly use period of this product is 40 years, during
which it can be used safely. Upon expiration of this period, it should enter the
recycling system.
Safety Requirements
Warning
Preparation
before use
Please connect this device to AC power supply with the power cable provided;
The AC input voltage of the line reaches the rated value of this device. See the
product manual for specific rated value.
The line voltage switch of this device matches the line voltage;
The line voltage of the line fuse of this device is correct.
Check all
terminal rated
values
Please check all rated values and marking instructions on the product to avoid fire
and impact of excessive current. Please consult the product manual for detailed
rated values before connection.

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Use the
power cord
properly
You can only use the special power cord for the instrument approved by the local
and state standards. Please check whether the insulation layer of the cord is
damaged or the cord is exposed, and test whether the cord is conductive. If the cord
is damaged, please replace it before using the instrument.
Instrument
grounding
To avoid electric shock, the grounding conductor must be connected to the ground.
This product is grounded through the grounding conductor of the power supply.
Please be sure to ground this product before it is powered on.
AC power
supply
Please use the AC power supply specified for this device. Please use the power
cord approved by your country and confirm that the insulation layer is not damaged.
Electrostatic
prevention
This device may be damaged by static electricity, so it should be tested in the
anti-static area if possible. Before the power cable is connected to this device, the
internal and external conductors should be grounded briefly to release static
electricity. The protection grade of this device is 4KV for contact discharge and 8KV
for air discharge.
Measurement
accessories
Measurement accessories are of lower class, which are definitely not applicable to
main power supply measurement, CAT II, CAT III or CAT IV circuit measurement.
Use the input
/ output port
of this device
properly
Please use the input / output ports provided by this device in a properly manner. Do
not load any input signal at the output port of this device. Do not load any signal that
does not reach the rated value at the input port of this device. The probe or other
connection accessories should be effectively grounded to avoid product damage or
abnormal function. Please refer to the product manual for the rated value of the input
/ output port of this device.
Power fuse
Please use power fuse of specified specification. If the fuse needs to be replaced, it
must be replaced with another one that meets the specified specifications (Class T,
rated current 5A, rated voltage 250V) by the maintenance personnel authorized by
UNI-T.
Disassembly
and cleaning
There are no components available to operators inside. Do not remove the
protective cover.
Maintenance must be carried out by qualified personnel.
Service
environment
This device should be used indoors in a clean and dry environment with ambient
temperature from 0 ℃to 40 ℃.
Do not use this device in explosive, dusty or humid air.
Do not
operate in
humid
environment
Do not use this device in a humid environment to avoid the risk of internal short
circuit or electric shock.

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Do not
operate in
flammable
and explosive
environment
Do not use this device in a flammable and explosive environment to avoid product
damage or personal injury.
Caution
Abnormity
If this device may be faulty, please contact the authorized maintenance personnel of
UNI-T for testing. Any maintenance, adjustment or parts replacement must be done
by the relevant personnel of UNI-T.
Cooling
Do not block the ventilation holes at the side and back of this device;
Do not allow any external objects to enter this device via ventilation holes;
Please ensure adequate ventilation, and leave a gap of at least 15 cm on both sides,
front and back of this device.
Safe
transportation
Please transport this device safely to prevent it from sliding, which may damage the
buttons, knobs or interfaces on the instrument panel.
Proper
ventilation
Poor ventilation will cause the device temperature to rise, thus causing damage to
this device. Please keep proper ventilation during use, and regularly check the vents
and fans.
Keep clean
and dry
Please take actions to avoid dust or moisture in the air affecting the performance of
this device. Please keep the product surface clean and dry.
Note
Calibration
The recommended calibration period is one year. Calibration should only be carried
out by qualified personnel.

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Environmental Requirements
This instrument is suitable for the following environment:
Indoor use.
In operating: altitude lower to 3000 meter；in non-operating: altitude lower to 15000 meter.
Operating temperature 0℃to﹢40℃; Storage temperature -20℃to +70℃(unless otherwise
specified).
In operating, humidity temperature below to +35℃, ≤90％relative humidity;
In non-operating, humidity temperature +35℃to +40℃, ≤60％relative humidity.
There are ventilation opening on the rear panel and side panel of the instrument. So please keep the air
flowing through the vents of the instrument housing. To prevent excessive dust from blocking the vents,
please clean the instrument housing regularly. The housing is not waterproof, please disconnect the
power supply first and then wipe the housing with a dry cloth or a slightly moistened soft cloth.
Connecting Power Supply
The specification of AC power supply that can input
Voltage Range
Frequency
100-240VAC
50/60Hz
100-120VAC
400Hz
Please use the attached power lead to connect to the power port.
Connecting to service cable
This instrument is a Class I safety product. The supplied power lead has good performance in terms of
case ground. This spectrum analyzer is equipped with a three-prong power cable that meets
international safety standards. It provides good case grounding performance for the specification of your
country or region.
Please install AC power cable as follows：
• ensure the power cable is in a good condition.
• leave enough space for connecting the power cord.
• Plug the attached three-prong power cable into a well-grounded power socket.
Electrostatic Protection
Electrostatic discharge may cause damage to component. Components can be damaged invisibly by
electrostatic discharge during transportation, storage and use.
The following measure can reduce the damage of electrostatic discharge,
• Testing in antistatic area as far as possible；
• Before connecting the power cable to the instrument, inner and outer conductors of the instrument
should be briefly grounded to discharge static electricity;

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• Ensure all the instruments are properly grounded to prevent the accumulation of static.
Preparation Work
1. Connecting the power cable and insert the power plug into protective grounding outlet; use the tilt
adjustment bracket as needed for your viewing angle.
Figure 2-1 Tilt adjustment
2. Press the switch on the rear panel , the spectrum analyzer will enter standby mode.
3. Press the switch on the front panel , indicator lights up green, and then the spectrum analyzer is
powered on.
It takes about 30 seconds to initialize the boot, and then the spectrum analyzer enters the system
default menu mode. In order to make this spectrum analyzer perform better, it is recommended that
warm up the spectrum analyzer for 45 minutes after power on.
Usage Tip
Use External Reference Signal
If user want to use an external signal source 10 MHz as reference, please connect signal source to the
10MHz In port on the rear panel. The measuring bar on the top of the screen will indicate Freq Ref: Ext.
Activate the Option
If user want to activate the option, user need to input secret key of the option. Please contact UNI-T
office to purchase it.
Refer to the following steps to activate the option you have purchased.
1. Save the secret key into USB and then insert it to spectrum analyzer;
2. Press [System] key > System Information > add token；
3. Select purchased secret key and then press [ENTER] to confirm.
Touch Operation
Spectrum analyzer has 10.1 inch multipoint touch screen for various gesture operating, which includes,
Tap the top right on the screen to enter the main menu
Slide up/down, left/right in waveform area to change the center frequency of X axis or reference

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level of Y axis
Zoom two points in waveform area to change the span of X axis
Tap parameter or menu on the screen to select and edit it
Turn on and move the cursor
Use auxiliary quick key to perform common operation
Use [Touch/Lock] to turn on/off touch screen function.
Remote Control
The UTS3000B/A series spectrum analyzers support communication with computers via USB and LAN
interfaces. Through these interfaces, users can combine the corresponding programming language or
NI-VISA, using the SCPI (Standard Commands for Programmable Instruments) command to remotely
program and control the instrument, as well as interoperate with other programmable instruments that
support the SCPI command set.
For more information about the installation, remote control and programming, please refer to office site
http:// www.uni-trend.com UTS3000B/A Series Programming Manual
Help Information
The spectrum analyzer's built-in help system provides help information for each function button and
menu control key on the front panel.
● Touch the left of the screen “ ”, help dialog box will pop out on the center of the screen. Tap support
function to get more detailed help description.
● After help information displayed on the center of the screen, tap “×” or other key to close the dialog
box.
Operating Mode
Spectrum analyzer provides various operating mode, use Mode key to select it,
Spectral analysis, refer to chapter 4
Vector signal analysis
EMI
Analog demodulation
Mode preset
Vector signal analysis, analog demodulation and EMI are the option, which should purchase to activate
it.
The function of the front panel button may be different in different operating modes.
Mode preset: Different operating modes have their own independent reset modes.