Scientific SMS3000X User manual

Spectrum Analyzer
SMS3000X
User Manual

Scientific
SMS3000X
2/75
Copyright © Scientific All rights reserved.
This instrument contains proprietary information, no part of this manual may be
photocopied, reproduced or translated without any prior written consent.
Information in this manual supersedes all corresponding previous released material.
Scientific continues to improve products and reserves rights to amend part or all of the
specifications, procedures, equipment at any time without notice.
Rev 1.00/ 0116
Scientific Mes-Technik Pvt. Ltd
B-14 Industrial Estate, Pologround
Indore - 452015 (India)
Tel : [phone]/33
Fax: [phone]
Email : [email protected]
Website : www.scientificindia.com

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Contents
General Safety Summary......................................................................................................5
Safety Terms and Symbols .............................................................................................. ....6
Spectrum Analyzer overview................................................................................... ..............6
Chapter 1 Quick Start............................................................................................... ........ 8
1.1 Appearance and Dimension ............................................................... ..................9
1.2 To Prepare for Use .............................................................................................. 10
1.2.1 Adjust the Supporting Legs ............................................................... ....... 10
1.2.2 Connect to AC Power Supply ............................................................... .... 11
1.3 The Front Panel .................................................................................................. 12
1.3.1 Front Panel Function Keys ............................................................... ........ 13
1.3.2 Front Panel Key Backlight ............................................................... ......... 14
1.3.3 To Use the Numeric Keyboard.................................................................. 14
1.3.4 Front Panel Connectors.............................................................. .............. 16
1.4 Rear Panel ............................................................................................... ............18
1.5 User Interface............................................................................................... ....... 20
1.6 Menu Operation .................................................................................................. 21
1.7 Parameter Setting ............................................................................................... 23
1.8 To Use the Built-in Help............................................................... ........................ 24
1.9 To Use the Security Lock............................................................... ...................... 25
Chapter 2 Front Panel Operation ............................................................... ...................... 26
2.1 Basic Settings ............................................................................................... ...... 27
2.1.1 Frequency ................................................................................................ 27
2.1.2 Span ............................................................................................... ..........31
2.1.3 Amplitude ................................................................................................. 32
2.1.4 Auto Tune ................................................................................................. 36
2.2 Sweep and Function Settings............................................................... ............... 38
2.2.1 BW............................................................................................... ............. 38
2.2.2 Trace ............................................................................................... ......... 39
2.2.3 Detect ............................................................................................... ........ 42
2.2.4 Sweep ............................................................................................... ....... 43
2.2.5 Trigger ............................................................................................... ....... 45
2.2.6 Limit............................................................................................... ........... 46
2.2.7 TG ............................................................................................... ............. 47
2.2.8 Demod ............................................................................................... ....... 49
2.3 Marker Setup............................................................................................... ........ 50
2.3.1 Marker ............................................................................................... ....... 50
2.3.2 Marker -> .................................................................................................. 53
2.3.3 Marker Fn ................................................................................................. 55
2.3.4 Peak ............................................................................................... .......... 57
2.4 Measurement ............................................................................................... ....... 59
2.4.1
Mea
s
...............................
.
...............................................................
.
.........
5
9
2.4.2 Meas setup ............................................................................................... 60

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2.5 System ............................................................................................... ................. 66
2.5.1 System ............................................................................................... ...... 66
2.5.2 Display............................................................................................... ....... 67
2.5.3 File............................................................................................... ............. 68
2.6 Shortcut Key............................................................................................... ......... 69
2.6.1 Preset ............................................................................................... ........ 69
2.6.2 Couple ............................................................................................... ....... 72
2.6.3 Help ............................................................................................... ........... 72
2.6.4 Save ............................................................................................... .......... 72
Chapter 3 General Inspection and Troubleshooting ......................................................... 73
3.1 General Inspection .............................................................................................. 73
3.2
T
r
o
u
b
lesho
o
t
in
g
...............................
.
...............................................................
.
...
73
Chapter 4 General Inspection and Troubleshooting ......................................................... 75

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General Safety Summary
Carefully read the following safety precautions to avoid any personal injury or damage to the
instrument and any products connected to it. To avoid potential hazards, please use the
instrument as specified.
Use Proper AC Power Line
Only the power cord designed for the instrument and authorized by local country should be
used.
Ground the Instrument
The instrument is grounded through the protective earth conductor of the power line. To
avoid electric shock, please make sure the instrument is grounded correctly before
connecting its input or output terminals.
Connect the Probe Correctly.
If a probe is used, do not connect the ground lead to high voltage since it has isobaric electric
potential as the ground.
Look Over All Terminals’ Ratings
To avoid fire or electric shock, please look over all ratings and sign instruction of the
instrument. Before connecting the instrument, please read the manual carefully to gain more
information about the ratings.
Use Proper Overvoltage Protection
Make sure that no overvoltage (such as that caused by a thunderstorm) can reach the product,
or else the operator might be exposed to danger of electrical shock. Electrostatic Prevention
Operate the instrument in an electrostatic discharge protective area environment to avoid
damages induced by static discharge. Always ground both the internal and external
conductors of the cable to release static before connecting.
Maintain Proper Ventilation
Inadequate ventilation may cause increasing of the instrument’s temperature, which will
eventually damage the instrument. So keep well ventilated and inspect the intake and fan
regularly.
Avoid Exposed Circuit or Components
Do not touch exposed contacts or components when the power is on.
Do Not Operate Without Covers
Do not operate the instrument with covers or panels removed.
Use Only the Specified Fuse.
Keep Product Surfaces Clean and Dry.
To avoid the influence of dust and/or moisture in the air, please keep the surface of the device
clean and dry.
Do Not Operate in Wet Conditions.
In order to avoid short circuiting to the interior of the device or electric shock, please do not
operate the instrument in a humid environment.
Do Not Operate in an Explosive Atmosphere.
In order to avoid damage to the device or personal injury, it is important to operate the device
away from an explosive atmosphere.

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Safety Terms and Symbols
Terms on the product. These terms may appear on the product:
DANGER Indicates direct injuries or hazards that may happen.
WARNING Indicates potential injuries or hazards that may happen.
CAUTION Indicates potential damages to the instrument or other property that may
happen.
Symbols on the product. These symbols may appear on the product:
Hazardous Protective Warning Earth Chassis
Voltage Ground Ground

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Spectrum Analyzer overview
The SMS3000X series spectrum analyzer has a frequency range from 9 kHz up to 2.1 GHz/3.2
GHz, it is light weight and small size, with a user friendly interface, concise style of display,
reliable precision measurement and plenty of RF measurement functions. Applicable to
research and development, education, production, maintenance and other related fields, that
meets a wider range of application requirements.
Features and Benefits
All-Digital IF Technology
Frequency Range from 9 kHz up to 2.1GHz / 3.2GHz
-161 dBm/Hz Displayed Average Noise Level (Typ.)
-98 dBc/Hz @10 kHz Offset Phase Noise (1 GHz, Typ.)
Total Amplitude Accuracy < 0.7 dB
10 Hz Minimum Resolution Bandwidth(RBW)
Standard Preamplifier
Up to 3.2 GHz Tracking Generator Kit (Opt.)
Reflection Measurement Kit (Opt.)
Advanced Measurement Kit (Opt.)
EMI Pre-compliance Measurements Kit (Opt.)

10.1
inch
W
V
GA
（
10
2
4x
6
00
）
Display

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Chapter 1 Quick Start
This chapter guides users to get familiar with the appearance, dimensions, front/ rear panel and the
user interface, as well as announcements during first use of spectrum analyzer.
Subjects in this chapter:
Appearance and Dimension
To Prepare for Use
The Front Panel
Rear Panel
User Interface
Menu Operation
Parameter Setting
To Use the Built-in Help

T
o
U
se
t
he
S
e
c
u
rity
Lo
c
k

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1.1 Appearance and Dimension
Figure 1- 1 Front View
Figure
1-
2
T
op
V
iew

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1.2 To Prepare for Use
1.2.1 Adjust the Supporting Legs
Adjust the supporting legs properly to use them as stands to tilt the Spectrum Analyzer upwards for
stable placement as well as easier operation and observation of the instrument.
Figu
r
e
1-
3
B
efo
r
e
a
d
jus
t
ing
Fi
g
u
r
e
1-
4
A
f
ter
adj
u
s
t
ing

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1.2.2 Connect to AC Power Supply
The Spectrum Analyzer accept 100-240V, 50/60/440Hz AC power supply. Please use the power
cord provided as accessories to connect the instrument to the power source as shown in the figure
below.
Figure
1
-
5
Pow
e
r
C
o
rd
C
o
nnection

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1.3 The Front Panel
Figure 1- 6 The Front Panel
Ta
b
le
1-
1
Fro
n
t
Pan
e
l
Des
c
ription
NO. Description NO. Description
1User Graphical Interface 7Numeric Keyboard
2Menu Control Keys 8TG Output
3Function Keys 9Earphone interface
4Knob 10 USB Host
5Arrow Keys 11 Power Switch
6RF Input

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1.3.1 Front Panel Function Keys
Figure 1- 7 Function Keys area
Ta
b
le
1-
2
Fu
n
c
t
ion
keys
d
e
s
c
ription
Function keys Description
Frequency Sets the Center Freq\Start Freq\Stop Freq\Freq Step
Span Sets the Span\Full Span\Zero Span\Zoom In\Zoom Out\Last Span
Amplitude Used to Set the REF Level\Attenuator\Preamp\Amplitude
Auto Tune Automatically sets the optimal parameters according to the characteristics of
the
sig
n
al
BW Used to adjust the RBW,VBW,VBW/RBW Rate, Average Type
(Logpower\Power\Voltage)
Trace Selects Trace\Trace setup\Trace math
Sweep Selects the Sweep time\Sweep Rule\Sweep Mode
Detect Selects the Detector type
Trigger Used in Selecting the Free Trigger\Video Trigger/ External Trigger
Limit Sets the Pass\Fail Limit
TG Sets the TG Level\TG Level offset\Normalize
Demod Used to set the Parameters of the AM and FM
Marker Used to Select the Mark Trace and Marker math
Marker-> Sets all types of Markers to Freq
Marker Fn Selects the Noise Marker\N dB BW\Freq Counter\Read out of Freq
Peak Searches for the Peak Signal and Counts the Peak Frequency
Meas Selects the Channel Power\ACPR\Occupied BW\T-Power
Meas Setup Used to Choose the Parameters Details of Channel Power\ACPR \Occupied
BW\T-Power

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System Selects the Language\Power on/Preset\Interface\Calibration\
system information\Data&Time\Self Test
Mode Selects the Spec Analyzer\EMI\Reflection Meas
Display Used to Adjust the Grid Brightness\Display Line
File Use to Select the File system
Preset Sets the system to default status
Couple Used to Select the RBW\VBW\Attenuator\Freq Step\Sweep time mode
Help Help Information Switch
Save Save Shortcut Key
1.3.2 Front Panel Key Backlight
The on/off state and the color of the backlights of some keys at the front panel indicate the working
state of the spectrum analyzer. The states are as listed below.
1. Power Switch
Flash on and off alternatively : indicate the unit is in stand-by state.
Constant on: indicate the instrument is in normal operating state.
2. Mode
When the EMI or Reflection Meas function is enabled, the backlight of Mode turns on .
When the function is Spec Analyzer, the backlight is turn off.
3. TG
When the TG function is enabled, the backlight of TG turns on and turns off when the function
is disabled.
1.3.3 To Use the Numeric Keyboard
Spectrum Analyzer provides a numeric keyboard at the front panel (as shown in the figure below).
The numeric keyboard which supports the English uppercase/lowercase characters, numbers and
common symbols (including decimal point, #, space and +/-) are mainly used to edit file or folder
name and set parameters (refer to “Parameter Setting”).

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Fi
g
ure
1
-
8
N
u
meric
Keyboard
1．
Press this key can change the Number and letter during file or folder name editing.
2．
Multiplexing keys for numbers and letters. They are used to directly input the desired
number or letter.
Press this key to input 1 in number input and switch between uppercase and lowercase
letter in English input.
3．
Press this key to input a decimal point in number input.

Press
t
his
key
t
o
input
s
p
e
c
ial
c
haract
e
r
in
English
i
n
put.
4．Back
During the process of parameter editing, press this key to delete the character on the left of the
cursor.
5．Esc
During parameter editing process, press this key to clear the inputs in the active function
area and exit parameter input.
When the instrument is in remote mode, use this key to return to local mode.
6．Enter
When pressed during parameter editing process, the system will complete the input and insert a
default unit for the parameter automatically.

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1.
3
.4
Fro
n
t
Pa
n
el
Co
n
nect
o
rs
Figure 1- 9 Front Panel Connectors
1
．
P
o
w
e
r
S
w
i
tch
Power up/Power down the instrument
2．USB Host
The analyzer can serve as a “host” device to connect external USB devices. This interface
is available for USB storage devices.
Read the ‘trace’ or ‘state’ file stored in the USB storage device, store the current instrument
‘state’ or ‘trace’ in the USB storage device or store the contents currently displayed on the
screen in the USB storage device in “.bmp” format.
3. Earphone Jack
The analyzer provides AM and FM demodulations. Insert the earphone to the jack to aquire the
audio output of the demodulated signal. You can turn on or off the earphone output and adjust
the volume via Demod ->Volume.

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CAUTION
To protect your ears, please turn the volume down to zero and gradually turn the
volume up after putting on the earphone.
4．TG OUTPUT
The output of the tracking generator can be connected to a receiver through a cable
with a N-type male connector.
CAUTION
To avoid damage to the tracking generator, the reverse DC voltage cannot exceed 50
V
5．RF INPUT
CAUTION
To avoid damage to the instrument, for the signal input from the RF input terminal, the
DC voltage component and the maximum continuous power of the AC (RF) signal
component can not exceed 50 V and +30 dBm respectively.

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1.4
Rear
Pa
n
el
Figure 1- 10 Rear Panel
1. Handle
Pull up the handle vertically for easy carrying of the instrument. When you do not need the
handle, press it down.
2
.
USB
D
e
v
ice
inte
r
fa
c
e
Connect external USB device. Through this interface, a PC can be connected to control
spectrum analyzer remotely through programming or PC software.
3
.
LAN
inte
r
face
Through this interface, the analyzer can be connected to your local network for remote control.
4. REF IN 10MHz
The spectrum Analyzer can use internal or external reference source.
When a 10 MHz external clock signal is received through the [10MHz IN] connector, this signal is
used as the external reference source and “Ext Ref” is displayed in the status bar of the user
interface. When the external reference is lost or not connected, the instrument switches to its
internal reference source automatically and “Ext Ref” on the screen disappears.
The [10MHz IN] and [10MHz OUT] connectors are usually used to build synchronization
among multiple instruments.

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5. REF OUT 10MHz
The spectrum Analyzer can use internal or external reference source.
When internal reference source is used, the [10MHz OUT] connector can output a 10 MHz
clock signal generated by the analyzer. This signal can be used to synchronize other
instruments.
The [10MHz OUT] and [10MHz IN] connectors are usually used to build synchronization
among multiple instruments.
6. Trigger in
In external trigger mode, the connector receives an external trigger signal through a BNC cable.
7. Security Lock Hole
If needed, you can use a security lock (not provided with instrument) to lock the analyzer to a
desired location.
8
.
Co
n
ne
c
t
to
AC
P
o
w
e
r
S
upply
The Spectrum Analyzer accept 100-240V, 50/60/440Hz AC power supply. Please use the
power cord provided as accessories to connect the instrument

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1.5
User
Int
e
rface
Figure
1-
1
1
User
In
t
erf
a
ce
T
ab
l
e
1-
3
U
ser
I
nterf
a
ce
l
a
bels
NO. Name Description
1 Ref Reference level
2 UNCAL When the sweep time less than the auto couple time,
the measure result may be inaccuracy, at the same
time appear the “UNCAL”
3 Active function area Current parameter and its value
4 EXT REF Ext Ref
5 Att ATT Value
6 Day and time System time
7,8,10 Cursor parameter 7 : current active cursor;
8 : current cursor frequency value
10 : current cursor amplitude value
9 Auto Tune Automatically sets the optimal parameters according to
the characteristics of the signal
11 USB storage device
identification
The identification is displayed when a USB flash drive
is inserted
12 Menu title Function of the current menu.
13 Menu items Menu items of the current function