GW Instek GSP-730 User manual

Spectrum Analyzer
GSP-730
USER MANUAL
REVISION 1.0 MAY 2012
ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will company.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
rights to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

SAFETY INSTRUCTIONS
1
Table of Contents
SAFETY INSTRUCTIONS .................................................. 3
GETTING STARTED.......................................................... 7
GSP-730 Introduction .................................8
Appearance ...............................................10
First Use Instructions ...............................17
BASIC OPERATION ........................................................ 26
Frequency Settings ....................................28
Span Settings............................................31
Amplitude Settings ...................................34
Autoset .....................................................36
Marker ......................................................38
Measurement............................................50
Limit Line Testing .....................................57
Bandwidth.................................................61
Trace .........................................................62
Display......................................................67
Save/Recall Files .......................................71
System Settings ........................................76
REMOTE CONTROL ....................................................... 78
Interface Configuration .............................79
Command Syntax ......................................81
Command List ..........................................84
FAQ..............................................................................103
APPENDIX ....................................................................105
GSP-730 Default Settings ........................105
GSP-730 Specifications ...........................107

GSP-730 User Manual
2
GSP-730 Dimensions ..............................109
Declaration of Conformity .......................110
INDEX ..........................................................................111

SAFETY INSTRUCTIONS
3
SAFETY INSTRUCTIONS
This chapter contains important safety
instructions that you must follow during
operation and storage. Read the following before
any operation to insure your safety and to keep
the instrument in the best possible condition.
Safety Symbols
These safety symbols may appear in this manual or on the
instrument.
WARNING
Warning: Identifies conditions or practices that
could result in injury or loss of life.
CAUTION
Caution: Identifies conditions or practices that
could result in damage to the instrument or to
other properties.
DANGER High Voltage
Attention Refer to the Manual
Earth (ground) Terminal
Frame or Chassis Terminal
Do not dispose electronic equipment as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased.

GSP-730 User Manual
4
Safety Guidelines
General
Guideline
CAUTION
Do not place any heavy object on the
instrument.
Avoid severe impact or rough handling that
leads to damaging the instrument.
Do not discharge static electricity to the
instrument.
Use only mating connectors, not bare wires, for
the terminals.
Ensure signals to the RF input do not exceed
+30dBm/±25V DC.
Do not block the cooling fan opening.
Do not disassemble the instrument unless you
are qualified.
(Measurement categories) EN 61010-1:2010 specifies the
measurement categories and their requirements as follows. The
instrument falls under category II.
Measurement category IV is for measurement performed at the
source of low-voltage installation.
Measurement category III is for measurement performed in the
building installation.
Measurement category II is for measurement performed on the
circuits directly connected to the low voltage installation.
Measurement category I is for measurements performed on
circuits not directly connected to Mains.
Power Supply
WARNING
AC Input voltage range: 100V~240V
Frequency: 50/60Hz
To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.

SAFETY INSTRUCTIONS
5
Cleaning
Disconnect the power cord before cleaning.
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid.
Do not use chemicals containing harsh material
such as benzene, toluene, xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Temperature: 5°C to 45°C
Humidity: 90% @ 45°C
(Pollution Degree) EN 61010-1:2010 specifies the pollution degrees
and their requirements as follows. The instrument falls under
degree 2.
Pollution refers to “addition of foreign matter, solid, liquid, or
gaseous (ionized gases), that may produce a reduction of dielectric
strength or surface resistivity”.
Pollution degree 1: No pollution or only dry, non-conductive
pollution occurs. The pollution has no influence.
Pollution degree 2: Normally only non-conductive pollution
occurs. Occasionally, however, a temporary conductivity caused
by condensation must be expected.
Pollution degree 3: Conductive pollution occurs, or dry, non-
conductive pollution occurs which becomes conductive due to
condensation which is expected. In such conditions, equipment
is normally protected against exposure to direct sunlight,
precipitation, and full wind pressure, but neither temperature
nor humidity is controlled.
Storage
environment
Location: Indoor
Temperature: -20°C to 60°C; <60°C/70% RH
Disposal
Do not dispose this instrument as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased. Please make sure
discarded electrical waste is properly recycled to
reduce environmental impact.

GSP-730 User Manual
6
Power cord for the United Kingdom
When using the instrument in the United Kingdom, make sure the
power cord meets the following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are coloured in accordance with the
following code:
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
As the colours of the wires in main leads may not correspond with
the coloured marking identified in your plug/appliance, proceed
as follows:
The wire which is coloured Green & Yellow must be connected to
the Earth terminal marked with either the letter E, the earth symbol
or coloured Green/Green & Yellow.
The wire which is coloured Blue must be connected to the terminal
which is marked with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the
terminal marked with the letter L or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment
or contact the supplier.
This cable/appliance should be protected by a suitably rated and
approved HBC mains fuse: refer to the rating information on the
equipment and/or user instructions for details. As a guide, a cable
of 0.75mm2should be protected by a 3A or 5A fuse. Larger
conductors would normally require 13A types, depending on the
connection method used.
Any exposed wiring from a cable, plug or connection that is
engaged in a live socket is extremely hazardous. If a cable or plug is
deemed hazardous, turn off the mains power and remove the cable,
any fuses and fuse assemblies. All hazardous wiring must be
immediately destroyed and replaced in accordance to the above
standard.

GETTING STARTED
7
GETTING STARTED
This chapter provides a brief overview of the
GSP-730, the package contents, instructions for
first time use and an introduction to the front
panel, rear panel and GUI.
GSP-730 Introduction ....................................................... 8
Main Features .............................................8
Package Contents........................................9
Appearance.................................................................... 10
GSP-730 Front Panel .................................10
Rear Panel ................................................14
Display......................................................15
First Use Instructions..................................................... 17
Tilting the Stand .......................................17
Power UP and Down .................................18
Software Update .......................................19
USB Driver Installation .............................20
Restoring Default Settings ........................21
Conventions..............................................22

GSP-730 User Manual
8
GSP-730 Introduction
The GSP-730 is a low-cost, basic spectrum analyzer. The GSP-730
has all the basic features of our more advanced models, but in a
smaller package, designed especially for education.
Main Features
Performance
150kHz~3GHz bandwidth
100kHz resolution
Features
Autoset with automatic floor level and span.
Marker table function
Limit line testing
Split window display
ACPR measurement
OCBW measurement
Automatic resolution bandwidth mode.
Interface
480640 color LCD display
On-screen menu icons
VGA video output
RS-232C
USB 2.0 Host port for data storage
USB 2.0 Device port for the virtual com port
communication

GETTING STARTED
9
Package Contents
Check the contents before using the GSP-730.
Opening the box
Contents
(single unit)
Main unit
Quick Start Guide
User Manual CD
Power cord x1 (region
dependent)
Calibration certificate

GSP-730 User Manual
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Appearance
GSP-730 Front Panel
dB
Enter
F 1
F 2
F 3
F 4
F 5
F 6 0BK SP
kHz /
Sec
m
mSec
MHz /
GHz /
Sec
1
4
7
2
5
8
3
6
9
Frequency
Span
Amplitude
Autoset
Marker
Peak
Limit Line
Meas
Search
BW
Trace
Display
Memory
Preset
Hardcopy
System
Hardcopy
Setup
GSP-730 150 kHz 3 GHz
Spectrum Analyzer
RF INPUT 50
+30dBm MAX.
MAX.DC ±25V
Ω
LCD Display Function
Keys
Menu keys Hardcopy key
Arrow keys
RF Input
terminal
Keypad and unit
keys
USB A portPower
button
Scroll wheel
LCD display
640 X 480 color LCD display. The display shows
the soft keys for the current function, frequency,
amplitude and marker information.
Function keys
F 1
~
F6
The F1 to F6 function keys directly
correspond to the soft keys on the
right-hand side of display.
Frequency
Frequency
Sets the center frequency, start
frequency, stop frequency and
step frequency.
Span
Span
Sets the span, with options for full
span, zero span and last span.

GETTING STARTED
11
Amplitude
Amplitude
Sets the amplitude reference level,
scale and amplitude units.
Autoset
Autoset
Automatically searches the peak
signal with maximum amplitude
and displays it with appropriate
horizontal and vertical scales.
Marker
Marker
The Marker key is used to
configure the markers, trace
markers as well as other related
functionality.
Peak Search
Peak
Search
Finds each maximum and
minimum peak. Used with the
Marker functions.
Meas
Meas
Configures ACPR and OCBW
measurements.
Limit Line
Limit Line
Sets and tests Pass/Fail limit lines.
BW
BW
Sets the resolution bandwidth.
Trace
Trace
Sets traces and trace related
functions.
Display
Display
The Display key configures the
split-screen windowing mode and
the basic display properties.
Memory
Memory
The memory key is used to save or
recall setup, trace and limit line
data.

GSP-730 User Manual
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Preset
Preset
The Preset key will restore the
spectrum analyzer to the factory
settings.
Hardcopy
Hardcopy
The hardcopy key is a quick save
key that will save a screen-shot of
the display.
Hardcopy setup
Hardcopy
Setup
Configures the hardcopy options.
System
System
The System key is used to
configure the RS232 interface,
language, update the firmware as
well as other system options.
Power key
Turns the instrument on/off.
Scroll wheel
Edit values, select listed items.
Arrow keys
Increment/decrement values (in
steps), select listed items.

GETTING STARTED
13
RF input terminal
RF INPUT 50
+30dBm MAX.
MAX.DC ±25V
Ω
RF input port. Accepts RF inputs.
Maximum input: +30dBm
(+20dBm measurable)
Input impedance: 50Ω
Maximum DC voltage: ±25V
N-type: female
Numeric keypad
0
1
4
7
2
5
8
3
6
9
MHz /
mSec
dB
Enter
GHz /
Sec
kHz /
mSec
BK SP
The numeric
keypad is used to
enter vales and
parameters. It is
often used in
conjunction with
the arrow keys and
scroll wheel.
USB A, Micro SD
USB A port for saving/recalling
settings/files to external memory.

GSP-730 User Manual
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Rear Panel
Fan
RS232 port
VGA port
Power socket
USB B port
Security slot
RS232
RS232 9 pin DSUB port.
USB B
USB B Device port. USB 1.1/2.0
VGA
VGA video-out port. Supports
SVGA (480X640)
Fan
Power Socket
Power Socket:
100~240V, 50/60Hz.
15W Max
Security Slot
Kensington-type security slot.

GETTING STARTED
15
Display
Reference
level
Function
menu
Marker
information
Entry / Message area Trace icons
Traces and
waveforms Soft menu
keys
Frequency/
Bandwidth
settings
Reference level
Displays the reference level. For details, see page
34.
Marker
information
Displays marker information. For details see page
38.
Function menu
Displays the current function menu.
Soft menu keys
The Soft menu keys are associated with the F1 to
F6 function keys to the right of the display.
Trace Icons
Displays the color of each active trace and the trace
mode of each active trace. See page 62 for more
information about traces.
Entry/Message
area
This area is used to show system messages, errors
and input values/parameters.

GSP-730 User Manual
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Frequency/
Bandwidth
settings
Displays the Start, Center and Stop frequencies,
RBW, Span and Sweep settings.
Trace and
waveforms
Main display showing the traces (page 62), limit
lines (57) and marker positions (38).

GETTING STARTED
17
First Time Use Instructions
Use the procedures below when first using the GSP-730 to tilt the
stand, power up the instrument, update the firmware and restore
the unit back to the default settings. Lastly, the Conventions
sections will introduce you to the basic operating conventions used
throughout the user manual.
Tilting the Stand
Description
The GSP-730 has two adjustable tabs at the
front that can be used to position the
instrument into two preset orientations.
Leaning Position
Set the tabs down to
have the GSP-730
leaning backward.
Upright Position
Set the tabs flat to
have the GSP-730 in
an upright position.

GSP-730 User Manual
18
Power UP and Down
Power Up
1. Insert the AC power cord
into the power socket.
2. Press the power button to
turn the GSP-730 on.
3. The GSP-730 will begin to boot up in under a
few seconds.
Note
If system fails to start, please see your local GW
Instek distributor.
Power Down
1. Press the power button to
power down.