GW Instek GSP-930 Owner's manual

Spectrum Analyzer
GSP-930
PROGRAMMING MANUAL
GW INSTEK PART NO. 82SP-93000M01

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.

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Table of Contents
SAFETY INSTRUCTIONS.............................................................2
GETTING STARTED......................................................................7
GSP-930 Introduction..................................8
Accessories ................................................. 10
Appearance .................................................. 12
REMOTE CONTROL ....................................................................23
Interface Configuration............................. 24
Command Syntax........................................ 34
Status Registers......................................... 38
Command List ............................................. 49

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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

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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.
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.
• Ensure reverse power to the TG output terminal
does not exceed +30dBm.
• Do not supply any input signals to the TG output.
• 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.

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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.
Battery
CAUTION
• Rating: 10.8V, 6 cell Li-ion battery
• Turn off the power and remove the power cord
before installing or removing the battery.
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%
(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.

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Storage
environment
• Location: Indoor
• Temperature: -20°C to 70°C
• Humidity: <90%
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.

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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
0.75mm2 should 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.

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GETTING STARTED
This chapter provides a brief overview of the GSP-
930, the package contents, instructions for first time
use and an introduction to the front panel, rear
panel and GUI.
GSP-930 Introduction ..................................................................8
Main Features...............................................................................8
Accessories ..................................................................................10
Package Contents.................................................................... 11

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GSP-930 Introduction
The GSP-930 is the most advanced spectrum analyzer GW Instek has
produced to date. The GSP-930 features a split window display to view
data in spectrum, topographic or spectrographic views.
Main Features
Performance • 9kHz~3GHz bandwidth
• 1Hz resolution
• Nominal RBW accuracy of 5% <750kHz, 8%
@>750kHz
• Video bandwidth 1Hz~1MHz (10 steps)
• Amplitude measurement range: DANL~30dBm
(frequency dependent)
• Input attenuation: 0 ~ 50dB
• Phase noise: < -88dBc/Hz@1GHz, 10kHz
Features • 10%-step increments for RBW bandwidth
• Three display modes: Spectrum, Topographic and
Spectrographic
• Split window display
• Built-in EMI filter
• Auto Wake-up
• Built-in preamplifier
• Gate sweep
• Marker Frequency counter
• Two operating modes: Spectrum and Power Meter
mode
• SEM measurement
• ACPR measurement

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• OCBW measurement
• Channel power measurement
• Demodulation analyzer
• Diverse marker functions and features with Peak
Table
• Sequence function to automatically perform pre-
programmed sequential operations
• Optional battery operation
Interface • 8.4 color LCD (800×600)
• On-screen menu icons
• DVI-I video output
• RS-232 with RTS/CTS hardware flow control
• USB 2.0 with support for USB TMC
• LAN TCP/IP with LXI support
• Optional GPIB/IEEE488 interface
• IF output @ 886MHz
• Headphone output
• REF (reference clock) input/output BNC ports
• Alarm/Open collector output BNC port
• Trigger/Gate input BNC ports
• RF N-type input port
• Tracking generator output
• DC +7V/500mA output SMB port

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Accessories
Standard
Accessories
Part number Description
Region dependant User manual
Region dependant Power cord
Options Option number Description
Opt1. Tracking generator
Opt2. Battery (11.1V/5200mAH
Li-ion battery)
Opt3. GPIB interface (IEEE 488
bus)
Optional
Accessories
Part number Description
PWS-06 USB Average Power
Sensor (up to 6200 MHz;
-32 to 20 dBm)
GRA-415 6U Rack mount kit

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Package Contents
Check the contents before using the GSP-930.
Opening the box
Contents
(single unit)
• Main unit
(may include optional
GPIB, TG output)
• Quick Start manual
• User Manual CD
• Power cord x1 (region
dependent)
• Optional battery pack
• Calibration certificate

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Appearance
GSP-930 Front Panel
LCD display 800×600 color LCD display. The display shows the
soft keys for the current function, frequency,
amplitude and marker information.
Function keys F 1
~ F 7 The F1 to F7 function keys directly
correspond to the soft keys on the
right-hand side of display.
Main keys
Sets the center frequency, start
frequency, stop frequency, center
frequency step and frequency offset
values.

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Sets the span, with options for full
span, zero span and last span.
Sets the amplitude reference level,
attenuation, pre-amplifier controls,
scale and other options for
attenuation and scale.
Automatically searches the peak
signal with maximum amplitude and
displays it with appropriate
horizontal and vertical scales.
Control keys
Sets the resolution bandwidth, video
bandwidth, average type and turns
the EMI filter on/off.
Sets the sweep time and gate time.
Sets traces and trace related
functions.
The Display key configures the
windowing mode and basic display
properties.
Accesses measurement options
such as ACPR, OCBW, demodulation
measurements, SEM, TOI and other
advanced measurements.
Sets and tests Pass/Fail limit lines.
Access, set and edit program
sequences.

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Sets the triggering modes.
File
File utilities options
The Quick Save utility allows you to
save either the state, trace, screen
limit line, correction or sequence
with only a single press.
Save the trace, state etc., and save
options.
Recall the trace, state etc., and
recall options.
Marker
Turns the Markers on/off and
configures the markers.
The
Marker-> key positions the
markers on the trace.
Finds each maximum and minimum
peak. Used with the Marker function.
State
The
Preset key will restore the
spectrum analyzer to the Factory or
User-defined settings.
The Preset key will also return the
instrument back to local control
after it has been in remote control
mode.

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The
Mode key sets the spectrum
analyzer to either Spectrum or
Power Meter mode.
The System key shows system
information, settings and other
system related functions.
Power key
Turns the instrument on/off.
Scroll wheel Edit values, select listed items.
Arrow keys
Increment/decrement values (in
steps), select listed items.
RF input terminal
RF INPUT 50
+30dBm MAX.
MAX.DC ±50V
RF input port. Accepts RF inputs.
• Maximum input: +33dBm
• Input impedance: 50Ω
• Maximum DC voltage: ±50V
• N-type: female
DC power supply
500mA MAX.
DC 7V
OUTPUT
SMB port supplies power for optional
accessories.
• DC +7V
• 500mA Max.

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Numeric keypad
7 8 9
654
1 2 3
/0
BK SP
Enter
The numeric keypad
is used to enter
vales and
parameters. It is
often used in
conjunction with the
arrow keys and scroll
wheel.
TG output port
The Tracking Generator (TG) output
source.
• N-type: female
• Input impedance: 50Ω
• Output power: -50dBm to 0dBm
• Maximum reversed power:
+30dBm
USB A, Micro SD
USB A port, Micro SD port for
saving/recalling settings/files.