GW Instek GSP-930 User Manual

Spectrum Analyzer

GSP-930

USER MANUAL

REVISION 1.1 APRIL 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

Table of Contents

SAFETY INSTRUCTIONS .................................................. 3

GETTING STARTED .......................................................... 8

GSP-930 Introduction ............................ 9

Accessories .......................................... 11

Appearance .......................................... 13

First Use Instructions .......................... 24

BASIC OPERATION ........................................................ 36

Frequency Settings ............................... 39

Span Settings ....................................... 43

Amplitude Settings .............................. 46

Autoset ................................................ 59

Bandwidth/Average Settings ................ 61

Sweep .................................................. 66

Trace .................................................... 72

Trigger ................................................. 79

Marker ................................................. 84

Display................................................. 98

System Settings ................................. 105

Preset ................................................ 109

ADVANCED OPERATION ............................................... 111

Measurement ..................................... 112

Limit Line Testing .............................. 159

Sequence ........................................... 165

Tracking Generator ............................ 170

Power Meter ...................................... 173

FILE .............................................................................. 178

File Overview ..................................... 178

GSP-930 User Manual

REMOTE CONTROL ...................................................... 194

Interface Configuration ...................... 195

FAQ .............................................................................. 205

APPENDIX .................................................................... 206

Replace the Clock Battery ................... 206

Glossary of Acronyms ........................ 207

GSP-930 Default Settings ................... 209

Menu Tree .......................................... 211

GSP-930 Specifications ...................... 240

GSP-930 Dimensions ......................... 249

Declaration of Conformity .................. 250

INDEX .......................................................................... 251

SAFETY INSTRUCTIONS

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.

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.

GSP-930 User Manual

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.

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 Guidelines

SAFETY INSTRUCTIONS

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.

Storage environment

 Location: Indoor  Temperature: -20°C to 70°C  Humidity: <90%

GSP-930 User Manual

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.

SAFETY INSTRUCTIONS

Green/ Yellow:

Earth

Blue:

Neutral

Brown:

Live (Phase)

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:

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.

GSP-930 User Manual

GSP-930 Introduction ....................................................... 9

Main Features .................................................................................................................9

Accessories..................................................................... 11

Package Contents ....................................................................................................... 12

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.

GETTING STARTED

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  OCBW measurement

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

GSP-930 User Manual

 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

GETTING STARTED

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

Accessories

GSP-930 User Manual

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

Package Contents

Check the contents before using the GSP-930.

GETTING STARTED

Frequency

Autoset

Amplitude

Span

BW/Avg

Display

Trace

Sweep

Meas

Trigger

Sequence

File

Recall

Save

Peak

Marker->

Marker

System

Mode

Preset

Quick Save

Limit Line

Enter

BK SP

F 4

F 3

F 2

F 1

F 6

F 5

F 7

GSP-930

9 kHz 3 GHz

Spectrum Analyzer

LOCAL

RF INPUT 50

REV PWR +30dBm

TG OUTPUT 50

W W

500mA MAX.

DC 7V

OUTPUT +30dBm MAX.

MAX.DC ±50V MAX.DC ±50V

CONTROL FILE

MARKER STATE

LCD display

Main keys

Function keys

Control keys

Power key

File keys

State keys

Scroll wheel

Arrow keys

RF input terminal

DC power supply

Tracking generator output

Numeric, Enter and BK SP keys

USB A, Micro SD port

Marker keys

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

Frequency

Sets the center frequency, start frequency, stop frequency, center frequency step and frequency offset values.

Appearance

GSP-930 Front Panel

GSP-930 User Manual

Span

Sets the span, with options for full span, zero span and last span.

Amplitude

Sets the amplitude reference level, attenuation, pre-amplifier controls, scale and other options for attenuation and scale.

Autoset

Automatically searches the peak signal with maximum amplitude and displays it with appropriate horizontal and vertical scales.

Control keys

BW/Avg

Sets the resolution bandwidth, video bandwidth, average type and turns the EMI filter on/off.

Sweep

Sets the sweep time and gate time.

Trace

Sets traces and trace related functions.

Display

The Display key configures the windowing mode and basic display properties.

Meas

Accesses measurement options such as ACPR, OCBW, demodulation measurements, SEM, TOI and other advanced measurements.

Limit

Line

Sets and tests Pass/Fail limit lines.

Sequence

Access, set and edit program sequences.

GETTING STARTED

Trigger

Sets the triggering modes.

File

File utilities options

Quick

Save

The Quick Save utility allows you to save either the state, trace, screen limit line, correction or sequence with only a single press.

Save

Save the trace, state etc., and save options.

Recall

Recall the trace, state etc., and recall options.

Marker

Turns the Markers on/off and configures the markers.

Marker->

The Marker-> key positions the markers on the trace.

Peak

Finds each maximum and minimum peak. Used with the Marker function.

State

Preset

LOCAL

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.

GSP-930 User Manual

Mode

The Mode key sets the spectrum analyzer to either Spectrum or Power Meter mode.

System

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.

GETTING STARTED

Numeric keypad

7 8 9

654

1 2 3

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

REV PWR +30dBm

TG OUTPUT 50

MAX.DC ±50V

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.

Rear Panel

AC 100 240V

50 60 Hz 82W MAX.

AC 100 240V

50 60 Hz 82W MAX.

USB-B, LAN port

FanDVI-I

port

IF OUT

TRIG IN/GATE

IN port

ALARM OUT/

OPEN

COLLECTOR

REF OUT Battery cover/

Optional battery pack

REF IN

RS232 port

GPIB port (optional)

Power socket

RS232

RS232 9 pin DSUB port.

IF OUT

SMA IF Out port.

DVI-I

DVI video out port. Supports SVGA (800X600) @ 60Hz.

Fan

Power Socket

Power Socket: 100~240V, 50/60Hz.

GSP-930 User Manual

GETTING STARTED

Battery pack

Voltage: 10.8V Capacity: 5200mAH

REF IN

BNC female reference input.

REF OUT

BNC female reference output: 10MHz, 50Ω impedance

Security Lock

ALARM OUT

BNC female open collector Alarm output.

TRIG IN/GATE IN

BNC female 3.3V CMOS trigger input/gated sweep input.

Phone

3.5mm stereo headphone jack (wired for mono operation)

USB B

USB B Device port. USB 1.1/2.0

LAN

RJ-45 10Base-T/100Base-Tx

Display

Scale and Reference level

Attenuation level

Date and time

Function menu

Marker information

Trigger settings

Pre-amp settings

Trace and Detection settings

Frequency/Bandwidth settings

Status icons

Sweep settings

Traces and waveforms

LXI icon

Entry / Message area

Reference level

Displays the reference level. For details, see page

46.

Attenuation

Displays the vertical scale (attenuation) of the input signal. For details, see page 47.

Date/Time

Displays the date and time. See page 106 for details.

Marker information

Displays marker information. For details see page

83.

LXI icon

This icon indicates the status of the LXI connection. For details, see page 196.

Function menu

Soft menu keys associated with the F1 to F7 function keys to the right of the display.

GSP-930 User Manual

GETTING STARTED

Sweep settings

Sweep icon that shows the sweep status. See page 66 for details.

Trigger settings

Trigger icon that shows the trigger status. See page 79 details.

Pre-amp settings

Pre-amplifier icon that shows the Pre-amplifier status. See from page 48 for details.

Trace and detection settings

Trace icon that shows the trace type and the detection mode used for each trace. See from page 72 for details.

Status Icons

Displays the interface status, power source status, and alarm status, etc. See the Status Icon Overview on page 22 for a list of the status icons.

Frequency/ Bandwidth settings

Displays the Start, Center and Stop frequencies, RBW, VBW, Span and Sweep settings.

Entry/Message area

This area is used to show system messages, errors and input values/parameters.

Trace and waveforms

Main display showing the input signals, traces (page 72), limit lines (159) and marker positions (83).

GSP-930 User Manual

PreAmp

Indicates that the pre amplifier is on.

Shown when running on AC power.

AC Charge

Shown when the AC power is charging the battery.

Alarm Off

Alarm buzzer output is currently off.

Alarm On

Alarm buzzer output is currently on.

Amplitude Offset

Indicates that the amplitude-shift is active. This icon appears when amplitude-related functions are used: Reference level offset Amplitude Correction Input Z = 75Ω Input Z cal >0

Battery indicator

Indicates the battery charge.

Bandwidth Indicator

Indicates that the RBW or VBW settings are in manual mode.

Average

Indicates that the Average function is active.

Status Icon Overview

GETTING STARTED

External Lock

Indicates that the system is now locked and refers to the external reference input signal

External Trigger

External trigger signal is being used.

Math

Trace math is being used.

Sequence Indicator

Shown when a sequence is running.

Sweep Indicator

Indicates that the sweep time is manually set.

Tracking generator

Indicates the tracking generator is turned on.

TG Normalization

Indicates that the tracking generator has been normalized.

Wake-up clock

Indicates that the wake-up clock is turned on.

USB

Indicates that a USB flash drive is inserted into the front panel and is recognized.

Micro SD

Indicates that a micro SD card is inserted into the front panel and is recognized.

GSP-930 User Manual

Description

The GSP-930 has two adjustable rubber feet that can used to position the instrument into two preset orientations.

Upright Position

Tuck the feet under the bottom of the instrument to stand the instrument upright.

Leaning Position

Pull the feet back to have the instrument leaning back.

First Use Instructions

Use the procedures below when first using the GSP-930 to tilt the stand, insert the battery pack, power up the instrument, setting the internal clock, the wake-up clock, updating the firmware and restoring the default settings. Lastly, the Conventions sections will introduce you to the basic operating conventions used throughout the user manual.

Tilting the Stand

GETTING STARTED

Description

The GSP-930 has an optional battery pack. The battery should be inserted before power is connected to the AC power socket and before the unit is turned on.

Steps

1. Ensure the power is off and the AC power is

disconnected.

2. Remove the battery cover.

3. Insert the battery as shown in the diagram

below.

4. Replace the battery cover.

Display Icon

The battery icon is displayed when GSP930 is running on battery power.

Insertion Diagram

Inserting the Battery Pack

Power UP

Steps

1. Insert the AC power cord into the power

socket.

2. The power button exterior will be lit blue to

indicate that the GSP-930 is in standby mode.

3. Press the power button to turn the GSP-930 on.

4. The power button will turn orange and the

GSP-930 will start to boot up.

Note

It takes approximately 1.5 minutes for the GSP-930 to fully startup.

GSP-930 User Manual

Power Down

Description

The GSP-930 has two methods to power down: Normal and Forced Power Down.

The normal power down method will save the system state and end any running processes. The state is saved for the next time the instrument is turned back on.

The forced power down method only does a minimum state save.

Normal Power Down

Press the power button. The system will automatically handle the power down procedure in the following order:

 The system state is saved.  Outstanding processes are closed in

sequence.

 The LCD backlight is turned off.  The system enters standby mode (the

power key changes from orange to blue).

Note

The process takes ~10 seconds.

Forced Power Down

Press and hold the power button for ~4 seconds until the system turns off and the power button turns blue.

Note

The forced down mode might cause the GSP930 to perform a longer system check the next time it is powered up.

GETTING STARTED

GSP-930 User Manual

Description

The GSP-930 can be setup to power-up automatically using the Wakeup Clock function. This feature is useful to wake-up the instrument early and eliminate settling time.

System Date

Example: Set the System Date to March 1, 2012

1. Press

System

>Date/Time[F4]>Set

Date[F1]>Year[F1].

2. Press 2012>Enter[F1].

3. Press Month[F2]>3>Enter[F1].

4. Press Day[F3]>1>Enter[F1].

5. Press Return[F7].

Note

The System Date will be shown at the top of the display.

System Time

Example: Set the System Time to 9.00 AM

1. Press

System

>Date/Time[F4]>Set

Time[F2]>Hour[F1].

2. Press 9>Enter[F1].

3. Press Minute[F2]>0>Enter[F1].

4. Press Second[F3]>0>Enter[F1].

5. Press Return[F7].

Setting the Date, Time and Wake-Up Clock

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