GW Instek GSP-830 User Manual

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3.0GHz Spectrum Analyzer

GSP-830

USER MANUAL

GW INSTEK PART NO. 82SP-83000MA1

ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by copyrights. 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.

Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

Good Will Instrument Co., Ltd.

No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan.

Table of Contents

SAFETY INSTRUCTIONS ....................................................6

Safety Symbols ....................................................6

Safety Guidelines ................................................6

GETTING STARTED............................................................9

GSP-830 Characteristics.................................... 10

Package Contents.............................................. 11

Front Panel Overview ........................................ 13

Rear Panel Overview ......................................... 16

Display Overview .............................................. 18

Tilt Stand & Power Up ...................................... 20

Error Check .......................................................22

Functionality Check........................................... 23

QUICK REFERENCE..........................................................25

Operation Shortcuts ......................................... 26

Menu Tree ......................................................... 31

Preset Contents................................................. 40

FREQUENCY/SPAN..........................................................41

View Signal (Center and Span).......................... 42

View Signal (Start and Stop)............................. 44

Full/Zero Span .................................................. 46

Recall the Last Span Setting.............................. 47

AMPLITUDE .....................................................................48

Set Vertical Scale............................................... 49

Amplitude Correction........................................ 52

Use Pre-Amplifier (Optional) ............................ 56

Set Input Impedance......................................... 57

AUTOSET .........................................................................58

How Autoset Works ..........................................59

Run Autoset ......................................................60

Limit vertical search range................................ 61

Limit horizontal view range............................... 61

MARKER ...........................................................................62

Activate/de-activate marker .............................. 63

Move marker ..................................................... 65

Show Markers in Table ...................................... 67

GSP-830 User Manual

PEAK SEARCH ................................................................. 68

Search Signal Peak ............................................ 69

Show Peak Table................................................71

TRACE ............................................................................. 73

View traced waveform ....................................... 74

Move Marker to Trace ....................................... 76

Run Trace Math .................................................78

Select Signal Detection Mode ........................... 80

POWER MEASUREMENT................................................. 82

ACPR Measurement ..........................................83

OCBW Measurement.........................................86

N dB Measurement ...........................................88

Phase Jitter Measurement .................................89

LIMIT LINE...................................................................... 90

Edit Limit Line................................................... 91

Run Pass/Fail test ............................................. 94

BANDWIDTH .................................................................. 95

Select RBW (Resolution BandWidth) ................96

Select VBW (Video BandWidth) ........................98

RBW/VBW Auto Mode Contents .......................99

Set Sweep time................................................ 101

Average Waveform........................................... 101

TRIGGER ........................................................................103

Select Trigger Type ..........................................104

Select Trigger Mode ........................................105

Set Trigger Delay ............................................. 106

DISPLAY .........................................................................107

Change Display Brightness ............................. 108

Activate Display Line....................................... 108

Enter Display Title........................................... 109

Use Split Display............................................. 110

Use VGA Output ............................................. 111

Save Display Image to USB Flash Drive .......... 111

FILE ................................................................................113

File Location and File Type..............................114

Copy File .........................................................115

Delete File....................................................... 118

Rename File .................................................... 120

Table of Contents

Save Display Image to USB Flash Drive .......... 121

PRESET...........................................................................123

SYSTEM..........................................................................124

Save/Recall Panel Setting ............................... 125

Configure Communication Interface ............... 126

View System Information ................................ 128

Set Date/Time................................................. 132

Synchronize GSP-830 with Other Devices ....... 133

Select Language .............................................. 135

Use Auxiliary Signal ........................................ 135

Enter Service Operation .................................. 135

SEQUENCE ....................................................................136

Edit Sequence ................................................. 137

Run Sequence ................................................. 140

TRACKING GENERATOR ................................................142

DEMODULATOR ............................................................144

EMI FILTER.....................................................................146

BATTERY / DC OPERATION ...........................................148

Battery Operation............................................ 148

DC Operation.................................................. 149

PC SOFTWARE ...............................................................150

Install Software ............................................... 151

Connect Software ............................................ 152

Use Software ................................................... 154

REMOTE CONTROL .......................................................157

Configure Interface ......................................... 158

Command Syntax ............................................ 160

Command Set ................................................. 161

FAQ................................................................................171

Appendix ........................................................................172

GSP-830 Specifications ................................... 172

Optional Items Specifications......................... 174

Declaration of Conformity............................... 176

INDEX ............................................................................177

GSP-830 User Manual

SAFETY INSTRUCTIONS

This chapter contains important safety instructions that you must follow when operating the GSP-830 and when keeping it in storage. Read the following before operating this instrument to ensure your safety and to keep the GSP-830 in best condition.

Safety Symbols

These safety symbols may appear in this manual or on the GSP-830.

Warning: Identifies conditions or practices that could

WARNING

result in injury or loss of life.

Caution: Identifies conditions or practices that could

CAUTION

result in damage to the GSP-830 or to other properties.

DANGER High Voltage

Attention Refer to the Manual

Protective Conductor Terminal

Earth (ground) Terminal

Safety Guidelines

General Guideline

CAUTION

• Make sure that the RF input level and the Tracking

Generator output reversed power level do not exceed +30dBm.

• Do not supply an input signal to the Tracking Generator

output.

• Do not place any heavy object on the GSP-830.

• Avoid severe impacts or rough handling that leads to

damaging the GSP-830.

• Do not discharge static electricity onto the GSP-830.

SAFETY INSTRUCTIONS

Power Supply

WARNING

• Use only mating connectors, not bare wires, for the

terminals.

• Do not block or obstruct the cooling fan vent opening.

• Do not perform measurement at a power generating source

or building installation site (Note below).

• Do not disassemble the GSP-830 unless you are technically

qualified.

(Note) EN 61010-1:2001 specifies the measurement categories and their requirements as follows. The GSP-830 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.

• AC Input voltage: 100 to 240 V AC, 50/60Hz, 90W

maximum

• DC Input voltage: 12V DC, 40W maximum

• The power supply voltage should not fluctuate more than

10%.

• Connect the protective grounding conductor of the AC

power cord to an earth ground, to avoid electrical shock.

Battery

CAUTION

Fuse

WARNING

Cleaning the GSP-830

Operation Environment

• Rating: 11.1V lithium-ion battery pack x 2

• Turn off the main power switch before installing or taking

out the battery packs.

• Fuse type: T1.6A/ 250V, time-delay, 5x20mm glass

• To ensure fire protection, replace the fuse only with the

specified type and rating.

• Disconnect the power cord before fuse replacement.

• Make sure the cause of fuse blowout is fixed before fuse

replacement.

• Disconnect the power cord before cleaning.

• Use a soft cloth dampened in a solution of mild detergent

and water. Do not spray any liquid into the GSP-830.

• Do not use chemicals or cleaners containing harsh

products such as benzene, toluene, xylene, and acetone.

• Location: indoor, no direct sunlight, dust free, almost

non-conductive pollution (Note below)

• Relative Humidity: < 90%

• Altitude: < 2000m

• Temperature: 18°C to 28°C

Storage Environment

• Location: indoor

• Relative humidity: < 85%

• Temperature: 0°C to 40°C

GSP-830 User Manual

(Note) EN 61010-1:2001 specifies the pollution degrees and their requirements as follows. The GSP-830 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.

Power cord for the United Kingdom

When using the GSP-830 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 mains leads may not correspond with the colour markings identified in your plug/appliance, proceed as follows:

The wire which is coloured Green & Yellow must be connected to the Earth terminal marked with the letter E or by the earth symbol

or coloured Green or 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, cable of 0.75mm

should be protected by a 3A or 5A fuse. Larger conductors

would normally require 13A types, depending on the connection method used.

Any moulded mains connector that requires removal /replacement must be destroyed by removal of any fuse & fuse carrier and disposed of immediately, as a plug with bared wires is hazardous if a engaged in live socket. Any re-wiring must be carried out in accordance with the information detailed on this label.

GETTING STARTED

This chapter describes the GSP-830 in a nutshell, including its main features, package contents, and front / rear / display panel introduction. After going through the overview, follow the Power-up sequence and Functionality check section to properly setup the GSP-830.

GSP-830 package

Panel introduction

Setup

GSP-830 Characteri

Package Contents...................................................11

Front Panel Overvie

Rear Panel Overview ..............................................16

Display Overview....................................................18

Status Icon overview ..............................................19

Tilt stand................................................................20

Power Up................................................................20

Error Check ............................................................22

Functionality Check ................................................23

stics .........................................10

w .............................................13

GSP-830 User Manual

GSP-830 Characteristics

The GSP-830 is a mid-to-high range digital storage spectrum analyzer suitable for a wide variety of applications, such as production testing, research, and field verification.

Performance

• Low noise floor: typical -117dBm @1GHz, 3k RBW

• Fast sweep: 50ms to 25.6s

• Compact size: 330(W) x 170(H) x 340(D) mm

• Light weight: approx. 6kg

Features

Interface

Optional Items (complete list on the next page)

• Autoset

• 5 markers with delta marker and peak functions

• 3 traces

• Power measurements: ACPR, OCBW, N-dB, Phase

Jitter

• Pass/fail test with limit line editing

• Split windows with separate settings

• Sequence programming (user-defined macro)

• 6.4 TFT color LCD, 640 x 480 resolution

• Phone output (available in the optional Demodulator)

• AC/DC/battery multi-mode power operation

• USB host for storage device connection

• USB slave/RS232/GPIB(optional) for PC software

connection and remote control

• Direct VGA display image output

• Reference signal input/output for synchronization

• External trigger signal input

• Tracking Generator

• Pre-amplifier GAP-801 (10dB typical, 9kHz to 6GHz)

• Pre-amplifier GAP-802 (20dB typical, 9kHz to 3GHz)

• ±1ppm stability module

• EMI filter with 9kHz/120kHz RBW and 6-dB

bandwidth

• Battery pack

• Demodulator

• 300Hz/10kHz/100kHz RBW

• GPIB interface

GETTING STARTED

Package Contents

Contact your dealer in case of missing items. The detailed specifications are listed from page172.

GSP-830

Standard accessories

• Power cord

• USB cable (Type A to Type B) for PC connection

• User Manual (this document)

Optional items Option01 Tracking Generator (factory installed)

Option02 Battery Pack

Option03 ±1ppm Stability Module (factory installed)

Option04 300Hz RBW (factory installed)

Option05 9kHz & 120kHz RBW (also called EMI Filter,

factory installed)

Option06 10kHz & 100kHz RBW (factory installed)

Option07 Demodulator (factory installed)

Option08 GPIB Interface (factory installed)

Note: Among Option 05, 06, and 07, only one can be

installed at a time.

ADP-001 BNC(J/F) to N(P/M) Adaptor Optional

accessories

ADP-002 SMA(J/F) to N(P/M) Adaptor

ADP-101 BNC(J/F)75Ω to BNC(P/M)50Ω Adaptor

ATA-001 BNC Antenna

ATN-100 10dB Attenuator N(J/F)-N(P/M)

GAK-001 Terminator 50Ω N(P/M)

GAK-002 Cap with Chain N(P/M)

GAP-801 Pre-Amplifier, 9kHz to 6GHz, 10dB typical

GAP-802 Pre-Amplifier, 9kHz to 3GHz, 20dB typical

GSP-830 User Manual

GKT-001 General Kit Set

ADP-002: SMA (J/F) to N (P/M) Adaptor x 2 ATN-100: 10dB Attenuator x 1 GTL-303:

RF Cable Assembly (RD316, SMA(P),60cm) x2

GSC-002: Kit box

GKT-002 CATV Kit Set

ADP-001: BNC (J/F) to N (P/M) Adaptor x 2 ADP-101: BNC(P/M) 50 to BNC(J/F) 75 adaptor x2 GTL-304:

RF Cable Assembly (RG223,N(P)-N(J),30cm) x2

GSC-003: Kit box

GKT-003 RLB Kit Set

GAK-001: Termination, N(P), 50 x 1 GAK-002: Cap with Chain, N(P) x 1 GTL-302:

RF Cable Assembly (RG223, N(P), 30cm) x2

GSC-004: Kit box

GKT-006 EMI Probe Set

ADP-01: Adaptor, BNC(J/F) - N(P/M) x 1 ADP-02: Adaptor, SMA(J/F) – N(P/M) x 1 ANT-01: 6cm Loop, H-Field Probe x 1 ANT-02: 3cm Loop, H-Field Probe x 1 ANT-03: 6mm Loop, H-Field Probe x 1 PR-03: Touch Passive Probe, < 3GHz x 1 Test Lead: RF Cable Assembly BNC(P/M)-BNC(P/M)x1 Test Lead: RF Cable Assembly SMA(P/M)-SMA(P/M)x1

GRA-404 19 Inch Rack Adaptor Panel, 4U

GSC-001 Soft Carrying Case

GTL-301 RF Cable Assembly, RG223, N(P/M), 1000mm

GTL-302 RF Cable Assembly, RG223, N(P/M), 300mm

GTL-303 RF Cable Assembly, RD316, SMA(P/J), 600mm

GTL-304 RF Cable Assembly, RG223, N(P/M) to N(J/F),

300mm

GTL-401 DC Power Line with Lighter Plug, 5A

RLB-001 Return Loss Bridge

GETTING STARTED

Front Panel Overview

LCD Display

F1 to F6 Function Keys

Main Keys

TFT Color display, 640x480 resolution. For display setting details, see page107.

F 1

F 6

Frequency

Soft keys linked to the menu that appears on the right side of the display.

Frequency key (page41), together with Span k

ey, configures the horizontal

(frequency) scale.

Span

Amplitude

Amplitude key (page48) configures the

ertical (amplitude) scale and input

v impedance. Autoset key (page58) automatically

hes the peak signal with maximum

searc

Autoset

amplitude and displays it with appropriate horizontal and vertical scales.

GSP-830 User Manual

Measurement keys

Control keys

Marker

Peak Search

Trace

Meas

Limit Line

Trigger

Display

File

Marker key (page62) activates markers and places them on specified loca

tions. Peak Search key (page68) searches peak signals and configures peak rang

es/orders. Trace key (page73) activates trace signals, configures them, and r

uns trace math operations. Measurement key (page82) configures

uns 4 types of Power Measurements:

and r ACPR, OCBW, N-dB, and Phase Jitter. Limit Line key (page90) configures high/lo

w limit lines and runs the pass/fail

test.

BW key (page95) configures the RBW/VBW width, sw

eep time length, and waveform averaging number. Trigger key (page103) selects the trigger

, sets the trigger running mode / delay

type / frequency, and activates the external trigger input. Display key (page107) configures the LCD dim line and title, and activates split windows.

mer, edits and shows the display

File key (page113) saves/recalls/deletes the trace w

aveform, limit line, amplitude correction, sequence, and panel settings. Display images may be saved to a storage device via the front panel USB port.

State Keys

Preset

System

Option

Seq

Preset key (page40or123) resets the GSP-830 to a predefined state

. System key configures the date/time (page132), GPIB/RS232C interface

e126), and language (page135). It also

(pag

ws the system information (page128)

sho and self

ves/recalls panel settings (page125).

Option k

Generator (page142), Demodulator (pag reference frequency (pag

Seq k

sequences (user

test result (page131), and

ey configures the Tracking

e144), battery (page148), and external

e133).

ey (page136) edits and runs

-defined macro).

GETTING STARTED

Power Key

Arrow Keys

Scroll Knob

Input Terminal

Pre-Amplifier Power Supply Te rmi na l

RF INPUT 50 Ω

DC ±25V

+30dBm MAX

DC 9V

OUTPUT

100mA MAX.

MAX

Power key selects the power state between the standby mode (Red LED on) and power on mode (Green LED on). To turn on/off the main power, use the power switch on the rear panel. See page20 for the po

wer up sequence.

Arrow keys select parameters in various occasions; Up/Right for increasing, Down/Left for decreasing.

Scroll knob sets or selects parameters in various occasions. In many cases, it works in tandem with the Arrow keys.

Input terminal accepts RF input signals.

• Maximum +30dBm

• Input impedance 50Ω

Pre-amplifier power supply terminal provides power for the optional GAP-801 or GAP-802 pre-amplifier. For details, see page56.

Numerical Keys Unit Keys Enter Key

Numerical keys set various parameters. In many cases, they work in tandem with the Arrow keys and Scroll knob.

Example Key sequence

BK SP key

9kHz

3.8dB

1.0mS

9 + Enter

Correction

Optional TG Output Terminal

USB Host Connector

TG OUTPUT 50 Ω DC ±25V

MAX

Outputs the optional Tracking Generator signal. Reversed power should not exceed +30dBm. For details, see page142.

Via the USB port (typeA male), display images may be saved to or recalled from USB flash drives For details, see page113.

GSP-830 User Manual

Rear Panel Overview

Frequency Adjustment Point

GPIB Connector (Optional)

USB Connector

RS232C Connector

Phone Output (Optional)

FREQ.

ADJUST

PHONE

Adjusts the internal reference signal frequency; for service operation only.

Optional 24 pin female GPIB connector for remote control (page157). For interface setting details

, see page127.

Type B mini connector for PC software connection (page150) and remote control

e157). For interface setting details, see

(pag

e126.

pag

9 pin female connector for PC software connection (page150) and remote control (pag

e157). For interface setting details, see

e126.

pag

3.5mm phone jack for audio output. Available when the optional Demodulator is installed. For details, see page144.

GETTING STARTED

Battery Pack (Optional)

Main Power Switch, Fuse Socket, Power Cord Socket

DC Power Input

DC 12V

INPUT

Stores the optional battery packs for portable usage. For details, see page148.

The main power switch turns on/off the GSP-830 main power. For the power up sequence, see page20.

he fuse socket stores the main fuse, T1.6A

T 250V, time-delay, 5x20mm glass. The power cord socket accepts the AC power cord, 100 to 240V, 50/60Hz. For power and fuse related safety instructions, see page6.

DC power input, 12V, 40W max rating. Accepts a standard 2.1mm DC plug or the optional GTL-401 DC power cord. For details, see page149.

VGA Output

External Trigger Input

Reference Output

Reference Input

40W MAX.

10MHz

REF OUTPUT

REF INPUT

15pin, female VGA connector which outputs 640 x 480 resolution display image to an external monitor. For details, see page111.

EXT. TRIG.

INPUT

Accepts a trigger signal from an external device. For details, see page103.

Outputs +5V TTL, 10MHz reference signal used for synchronizing the GSP-830 with an external device. For details, see page133.

Accepts a TTL signal from an external device, used for synchronization with the GSP-830. For details, see page134.

GSP-830 User Manual

Display Overview

A Traces &

Waveforms

Input signals and traces that appear within the main display area. Input signal & TraceA: Green, TraceB: Red, TraceC: Yellow. For trace details, see page73.

B Title

C Reference

Level/Scale

D Marker

Information

E Function Menu

The title of the current display. For details, see page109.

The reference amplitude level and vertical scale. For amplitude details, see page48.

The frequency and amplitude for the active marker / delta marker. For marker details, see page62.

The menu associated with F1 to F6 function keys on the right side of the display.

F Date and Time

G Frequency/

Bandwidth

Current date and time. For setup details, see page132.

Upper line: shows the start/stop frequency (page44) and center frequency (page42). Lo RBW (resolution bandwidth - pag (pag

wer line: shows the VBW (video bandwidth - page98),

e96), frequency span

e42), and sweep time (page101).

GETTING STARTED

H Status Icon

The icons showing various system conditions. See the below Status Icon overview for details.

I Test Result/

Error Message

J Command

Window

The result of the pass/fail test using limit lines (page94) or the system error messages (page128).

Shows the current status of the selected menu or the entered parameters such as frequency and amplitude.

Status Icon overview

Amplitude (page48)

Peak Search (page68)

Trace (page73)

External gain on, amplitude correction on, Input impedance 75Ω, Input impedance calibration on

Peak track on

TraceA:green , B:red , C:yellow

Clear mode

Average on

BW (page95)

Trigger (page103)

Battery level (page148)

Options

Sequence(page136)

USB

Peak hold mode

View mode, trace math

RBW, VBW manual mode

Video trigger mode

Sweep time manual mode

External trigger signal on

Fully charged

50% to 25%

75% to 50%

Less than 25%

TG normalization activated (page142)

External reference signal used (page133)

±1ppm stability module installed (page133)

Sequence currently running

USB flash drive is detected (page114), or USB remote control connection is detected (pag

e158)

GSP-830 User Manual

Tilt Stand & Power Up

Tilt stand

Low angle

High angle

Power Up

rear panel socket.

2. Turn on the main power switch.

3. The ON/STBY key on the front

panel turns red.

4. Press the ON/STBY key. Its

color turns green and the display becomes active.

1. Connect the power cord to the

GETTING STARTED

Last Stored Settings

At the initial state, only the F3 menu “Last stored state” becomes available.

Last

stored

state

For details of storing the panel settings, see page125.

To recall the last stored panel settings:

Press F3. One of the panel settings from S1 – S10, which was stored the last time, will be recalled.

To use the GSP-830 without recalling the last stored panel settings:

Press any other function keys (see below).

List of function keys

Frequency

Span

Amplitude

Marker

Peak Search

Trace

Meas

Trigger

Display

Preset

System

Option

F 3

Note

Autoset

Limit Line

File Seq

Ignore the error message that might appear at the bottom of the display when powering up the GSP-830. The message indicates that internal configurations are ongoing. For error message details, see page22.

GSP-830 User Manual

Error Check

This section assumes that the GSP-830 is already powered up (page20).

1. Check system error

Check for error messages at the bottom of the display, next to the command window.

Center : 1.5GHz

EXT

Unlock

(EXT Unlock)

Contact the service center if any of the following messages remains in the display.

Amp

Uncal

EXT

Unlock

LO1

Unlock

LO3

Unlock

• Inappropriate RBW or VBW is selected.

• Frequency is less than 15MHz and

amplitude is less than 30dBm.

External reference input is not working properly.

Local oscillator 1 is not working properly.

Local oscillator 3 is not working properly.

2. Check self test result

Med

Unlock

±1ppm stability signal is not working properly. Appears only when the optional

±1ppm stability module is installed.

Ref

Unlock

Internal reference signal is not working properly.

View the GSP-830’s self-diagnosis test result. Press the System key→F6 (More) →F2 (Self Test).

System

More...

F 6

Self Test...

F 2

The test automatically runs at each power-up. The underline shows the result, pass or fail. Contact the service center if any of the items fails.

GPIB

Pass

Flash

Pass

Fail

F 1

F 2

GPIB module connectivity (available only when installed)

Internal Flash memory for storing the system code/data

GETTING STARTED

SDRAM

Pass

Fail

RTC

Pass

Fail

F 3

F 4

Internal SDRAM for running the system code

Internal real time clock for configuring the date and time

Functionality Check

1. Feed a signal Input a signal to check if the GSP-830 correctly shows

• This section assumes that the GSP-830 is already

powered up (page20).

• Before operating the GSP-830 in a new environment,

run these steps to make sure it is functionally stable.

the waveform on the display. There are two ways to feed an input signal.

Feeding the DUT signal

If the DUT is already available, connect the output signal to the RF input terminal. The signal amplitude must be less than +30dBm.

Feeding the internal auxiliary signal

You can also use the internal auxiliary signal, 100MHz/30dBm. No cable connection is required in

this case. Activate the signal by pressing the System key→ F4 (Aux Sig On).

System

Aux Sig

Off

F 4

GSP-830 User Manual

2. View the signal

Press the Autoset key→F1 (Autoset).

Autoset Autoset

F 1

The GSP-830 automatically configures the horizontal and vertical scales and shows the signal on the display.

Check the peak frequency and amplitude that appear on the top right corner of the display. To move the marker,

use the Scroll knob

Internal auxiliary signal, -30dBm @100MHz

Peak frequency/amplitude

or Left/Right keys .

If the displayed value does not match the actual signal, contact the service center.

QUICK REFERENCE

Shortcuts

Power-on screen

Frequency and Span ...............................................26

Amplitude...............................................................26

Autoset...................................................................26

Marker....................................................................26

Peak Search ............................................................27

Trace.......................................................................27

Power Measuremen

Limit Line ...............................................................28

Bandwidth ..............................................................28

Trigger ....................................................................28

Display ...................................................................29

File .........................................................................29

System....................................................................29

.....................................................26

t...............................................27

Menu T

Preset

ree

Option

Sequence................................................................30

Power-on screen

Frequency, Span, Autoset, Amplitude(1 of 2) .........31

Amplitude (2 of 2), Marker

Peak Search, T

Measurement, Lim

BW, Trigger, Display

File (1 of 2) ............................................................36

System....................................................................38

Option, Sequence

Preset Contents

....................................................................30

.....................................................31

.....................................32

race..................................................33

it Line .......................................34

................................................35

...................................................39

......................................................40

GSP-830 User Manual

Operation Shortcuts

Here is the list of available operations and their shortcuts.

Power-on screen

Recall the last stored settings

Frequency and Span

Set Center Frequency and Span

Frequency→F1→Span→F1

Set Start and Stop Frequency Set Frequency Step Activate Full Span (3.0GHz) Activate Zero Span (Time Domain) Recall Last Span

Amplitude

Set Reference Level Select Vertical Scale Select Unit (dBm/dBmV/dBuV) Set External Gain Activate Amplitude Correction Select Amplitude Correction Set Delete Amplitude Correction Item Delete Amplitude Correction Set Undo Correction Item/Set Deletion

Frequency→F2(Start), F3(Stop)

Frequency→F4

Span→F2

Span→F3

Span→F4

Amplitude→F1

Amplitude→F2

Amplitude→F3→F1 to F3

Amplitude→F4

Amplitude→F5→F2

Amplitude→F5→F1→F1

Amplitude→F5→F1→F2

Amplitude→F5→F1→F3→F2

Amplitude→F5→F1→F4

Save Amplitude Correction Set Select Input Impedance (50Ω/75Ω) Set Input Impedance Offset

Autoset

Run Autoset Set Amplitude Floor Set Frequency View Span

Marker

Activate Normal Marker

Amplitude→F5→F1→F5

Amplitude→F6→F1

Amplitude→F6→F2

Autoset→F1

Autoset→F2

Autoset→F3

Marker→F1→F2

QUICK REFERENCE

Activate Delta Marker Activate All Normal Markers Move Marker to Peak Move Marker and Peak to Center Track Marker on Peak Move Marker to Various Locations Show Marker Table Put Marker on Trace

Peak Search

Search Peak Signal Search Next Peak Search Next Peak to Right Search Next Peak to Left Search Peak and Move to Center Track Marker on Peak

Marker→F1→F2→F3

Marker→F6→F3

Marker→F4 or Peak Search

Marker→F4→F5 or Peak Search→F5

Peak Search→F6→F4

Marker→F6→F4→F1 to F5

Marker→F6→F2

Marker→F6→F1

Peak Search or Marker→F4

Peak Search→F2

Peak Search→F3

Peak Search→F4

Peak Search→F5 or Marker→F4→F5

Peak Search→F6→F4

Search Minimum Amplitude Show Peak Table Sort Peaks in Peak Table Set Peak Threshold

Trace

Activate Trace Clear Trace (Update in Real-Time) View Peak Hold Trace Freeze Trace Hide Trace View Averaged Trace Run Trace Math Select Signal Detection Mode

Power Measurement

Activate ACPR

Peak Search→F6→F5

Peak Search→F6→F1

Peak Search→F6→F2

Peak Search→F6→F3

Trace→F1

Trace→F2

Trace→F3

Trace→F4

Trace→F5

Trace→F6→F1 or BW→F4

Trace→F6→F2→F1 to F5

Trace→F6→F3→F1 to F5

Meas→F2

Set ACPR Channel Bandwidth Set ACPR Channel Space Set ACPR Adjacent Channel Offset

Meas→F1→F1

Meas→F1→F2

Meas→F1→F4→F2 and F4

GSP-830 User Manual

Set ACPR Adjacent Channel BW Move ACPR Channel Up Move ACPR Channel Down Activate OCBW Set OCBW Channel Bandwidth Set OCBW Channel Space Set OCBW % Move OCBW Channel Up Move OCBW Channel Down Activate N dB Set N dB Value Activate Phase Jitter Set Phase Jitter Offset

Limit Line

Activate Limit Line

Meas→F1→F4→F1 and F3

Meas→F4

Meas→F5

Meas→F3

Meas→F1→F1

Meas→F1→F2

Meas→F1→F3

Meas→F4

Meas→F5

Meas→F6→F1

Meas→F6→F2

Meas→F6→F3

Meas→F6→F4→F1(Start), F2(Stop)

Limit Line→F1 (High), F2 (Low)

Select Limit Line for Edit Activate Limit Line Edit Table Delete Limit Line Table Item Delete All Table Item Undo Last Deletion Run Pass/Fail Test Select Pass/Fail Condition

Bandwidth

Select RBW Select VBW Set Sweep Time Set Trace Average Number Reset RBW/VBW/Sweep to Auto

Trigger

Select Free Run (Default)

Limit Line→F3→F1

Limit Line→F3→F2

Limit Line→F3→F3

Limit Line→F3→F4→F2

Limit Line→F3→F5

Limit Line→F4

Limit Line→F5

BW→F1

BW→F2

BW→F3

BW→F4 or Trace→F6→F1

BW→F5

Trig ger→F1

Select Video/External Trigger Select Trigger Mode Set Trigger Delay

Trig ger→F2

Trig ger→F3

Trig ger→F4

QUICK REFERENCE

Set Trigger Frequency Run Trigger (in Single/Continuous)

Display

Change Dimmer Level Show Display Line Clear Title Enter Title Show Title Activate Split Window Alternate Upper/Lower Sweep Switch Split Display to Full Screen

File

Select Copy Source File Select Copy Destination File

Trig ger→F5

Trig ger→F6

Display→F1

Display→F2

Display→F3→F1

Display→F3→F2 to F4

Display→F3→F5

Display→F4→F1 (Upper), F2 (Lower)

Display→F4→F3

Display→F4→F4

File→F1→F1→F1 to F5

F2→F1 to F5 (After Selecting Source)

Edit Copied File Name Copy Selected File Select File for Deletion

Delete Selected File Rename File

Confirm New File Name Save Display Image to USB Drive

Rename File in USB Drive Select System Code for Update Select Language for Update Update System File from USB Drive

Preset

Recall Factory Installed Settings

System

Save Setup

F3 (After Selecting Destination) F4 (After Selecting Source/Destination)

File→F2→F1→F1 to F5 F2 (After Selecting File)

File→F3→F1 F2 (After Renaming File)

File→F4→F1→F2

File→F4→F1→F1

File→F5→F1→F1

File→F5→F1→F2 F2 (After Selecting File)

Preset

System→F1→F1 or F2→F3

Recall Setup Select GPIB Address Show RS-232C Configuration Activate Auxiliary Signal

System→F1→F1 or F2→F4

System→F2

System→F3→F1 to F4

System→F4

GSP-830 User Manual

Set Date Set Time Activate Clock Display View Self Test Result View System Configuration Select Language

Option

Activate Tracking Generator Set Tracking Generator Amplitude Normalize Tracking Generator Activate Normalized TG Set Ref Level for TG Normalization Activate FM Demodulator Activate AM Demodulator Activate Phone Output

System→F6→F1→F1→F1 to F4

System→F6→F1→F2→F1 to F3

System→F6→F1→F3

System→F6→F2

System→F6→F4

System→F6→F5→F1

Option→F1→F1

Option→F1→F2

Option→F1→F3→F2

Option→F1→F4

Option→F1→F5

Option→F2→F1

Option→F2→F2

Option→F2→F3

Set Phone Output Volume Set Squelch Level View Battery Level Set Ext. Reference Signal Frequency

Sequence

Select Sequence Set Start Sequence Edit Insert 100ms Delay Insert Pause in Sequence Insert Another Sequence Set Stop Sequence Edit Insert Item to Sequence Set Save Sequence Set Delete Sequence Item Delete Sequence Set

Option→F2→F4

Option→F2→F5

Option→F3

Option→F4

Sequence→F1, F2

Sequence→F3→F1

Sequence→F3→F2

Sequence→F3→F3

Sequence→F3→F4→F1 to F2

Sequence→F3→F5

Sequence→F3→F6→F1

Sequence→F3→F6→F2

Sequence→F3→F6→F3

Sequence→F3→F6→F4→F2

Undo Sequence Item/Set Delete Select Sequence Run Mode Run Sequence Delete All Sequence Set

Sequence→F3→F6→F5

Sequence→F4→F1

Sequence→F4→F2

Sequence→F5→F2

QUICK REFERENCE

Menu Tree

Power-on screen

Last

stored

state

Frequency, Span, Autoset, Amplitude(1 of 2)

F 3

Frequency

Center

1.5 GHz

Start

0 kHz

Stop

3 GHz

Step

1 MHz

Amplitude

Ref.Level

0 dBm

Scale dB/Div

10 5 2 1

F 1

F 2

F 3

F 4

F 1

F 2

Span

3 GHz

Full Span

Zero Span

Last Span

dBm

dBmV

F 1

F 2

F 3

F 4

F 1

F 2

Autoset

Amp.Floor

Auto

Man

Span

Man

Auto

F 1

F 2

F 3

Units...

Ext.Gain

0dB

Corrections..

F 3

F 4

F 5

F 6

dBuV

Return

F 3

F 6

GSP-830 User Manual

Amplitude (2 of 2), Marker

QUICK REFERENCE

Peak Search, Trace

Peak Sear ch

Pk Search

Next Peak

Next Pk

Right

Next Pk

Left

Mkr Center

Trace

B C

Clear

F 1

F 2

F 3

F 4

F 5

F 6

F 1

F 2

Peak Table

On Off

Peak Sort

Amp

Freq

Pk Threshold

On Off

Track

On Off

Min Search

Return

AVG

On Off

Trace Math..

F 1

F 2

F 3

F 4

F 5

F 6

F 1

F 2

A B

A+B A

F 1

F 2

Peak Hold

View

Blank

F 3

F 4

F 5

F 6

Detection..

Return

F 3

F 6

A-B A

A+const A

A-const A

Return

Normal

Sample

Peak+

AVG

QPeak

F 3

F 4

F 5

F 6

F 1

F 2

F 3

F 4

F 5

Return

F 6

GSP-830 User Manual

Measurement, Limit Line

Meas

Channel

Setup...

ACPR

On Off

OCBW

On Off

CH Up

CH Down

F 1

F 2

F 3

F 4

F 5

F 6

CH BW

CH SPC

OCBW %

ADJ CH Offset...

Return

N dB BW

On Off

N dB

Phase Jitter

On Off

F 1

F 2

F 3

F 4

F 6

F 1

F 2

F 3

Adj CH BW1

Adj CH Offs1

Adj CH BW2

Adj CH Offs2

Return

Start

Offset

Stop

Offset

F 1

F 2

F 3

F 4

F 6

F 1

F 2

Limit Line

H Limit

On Off

L Limit

On Off

Edit...

Pass/Fail

On Off

Pass/Fail

___

F 1

F 2

F 3

F 4

F 5

Phase Jitter

Setup..

Return

Limit

Low High

Edit Table

Off

Delete

Delete All..

Undelete

F 4

F 6

F 1

F 2

F 3

F 4

F 5

Return

Yes

F 6

F 1

F 2

Return

F 6

QUICK REFERENCE

BW, Trigger, Display

RBW

Auto

Man

VBW

Auto

Man

Swp Tm

Auto

Man

AVG

On Off

All Auto

Display

LCD Dimmer

F 1

F 2

F 3

F 4

F 5

F 1

Trigger

Free Run

Trigger

Condition

Video Ext.

Trigger Mode

Nor. Sgl. Cont.

Trigger Delay

50ms

Trigger Freq

1.5GHz

Run Now

Clear Title

F 1

F 2

F 3

F 4

F 5

F 6

F 1

Upper

F 1

Display Line

On Off

Title...

Split

Window...

F 2

F 3

F 4

(Capital

Letter)

(Small Letter)

(Symbol)

Show Title

Return

F 2

F 3

F 4

F 5

F 6

Lower

Alternate

Sweep

Full Screen

Return

F 2

F 3

F 4

F 6

GSP-830 User Manual

File (1 of 2)

File

Copy...

Delete...

Rename...

F 1

F 2

F 3

Source..

Destination..

Edit File Name

On Off

Copy Now

Return

Type...

Delete Now

F 1

F 2

F 3

F 4

F 6

F 1

F 2

Trace

Int.

Ext.

Limit

Int.

Ext.

Correction

Int.

Ext.

Seq.

Ext.

Int.

Setup

Ext.

Int.

Return

Trace

Ext.

Int.

Limit

Int.

Ext.

Correction

Int.

Ext.

F 1

F 2

F 3

F 4

F 5

F 6

F 1

F 2

F 3

Print Screen..

Update

From

Flash Drive

F 4

F 5

Return

F 6

Seq.

Int.

Ext.

Setup

Int.

Ext.

Return

F 4

F 5

F 6

QUICK REFERENCE

File (2 of 2)

File

Copy...

Delete...

Rename...

F 1

F 2

F 3

Edit File Name

On Off

Confirm

Return

To Ext.

Memory...

F 1

F 2

F 6

F 1

Edit File Name

On Off

Print Now

F 1

F 2

Print Screen..

Update

From

Flash Drive

Preset

F 4

F 5

(No menu item)

Return

Type...

Update Now

Return

F 6

F 1 F 1

F 2

F 6

Return

System Code

Multi

Language

Return

F 6

F 2

F 6

System

GSP-830 User Manual

Save/Recall

Setup..

GPIB Add

Serial Port..

Aux Sig

On Off

Service...

More...

System Clock...

Self Test...

RF Diagno...

F 1

F 2

F 3

F 4

F 5

F 6

F 1

F 2

F 3

Baud

57600

Parity

None

Stop

Data

Return

Date...

Time...

Clock

Off

F 1

F 2

F 3

F 4

F 6

F 1

F 2

F 3

Setup

2 3 4 5

Setup

6 7 8 9 10

Save Now

Recall Now

Return

Year

Month

Day

F 1

F 2

F 3

F 4

F 6

F 1

F 2

F 3

System Config

On Off

Language

Return

(English)

Return

F 4

F 5

F 6

F 1

F 6

Return

GPIB

Pass

Fail

Flash

Pass

Fail

SDRAM

Pass

Fail

RTC

Fail

Pass

Return

F 6

F 1

F 2

F 3

F 4

F 6

Day of

Week

Return

Hour

Minute

Second

Return

F 4

F 6

F 1

F 2

F 3

F 6

* Submenu only for service personnel

QUICK REFERENCE

Option, Sequence

Option

TG...

Demod...

Battery

Ext Ref Freq

10MHz

Seq

Select Seq

2 3 4 5

Select Seq

6 7 8 9 10

Edit...

F 1

F 2

F 3

F 4

F 1

F 2

F 3

On Off

SPK

On Off

Volume

Squelch

Return

Start Edit

Delay ms

100 X

Wait to go

F 1

F 2

F 3

F 4

F 5

F 6

F 1

F 2

F 3

Off

TG Level

Execute

Norm..

Norm Corr

On Off

Ref Value

Return

Seq.Index

2 3 4 5

Seq.Index

6 7 8 9 10

F 1

F 2

F 3

F 4

F 5

F 6

F 1

F 2

Yes

Return

F 1

F 2

F 6

Run...

Delete

Seq All...

Yes

Return

F 4

F 5

F 1

F 2

F 6

Do Seq...

Stop Edit

Run Mode

Rept. Sngl.

Run Now

Return

F 4

F 5

F 6

F 1

F 2

F 6

Return

Insert

Save

Delete

Delete All..

Undelete

Return

F 6

F 1

F 2

F 3

F 4

F 5

F 6

Yes

Return

F 1

F 2

F 6

GSP-830 User Manual

Preset Contents

These are the settings that appear when pressing the Preset key

Frequency

Span

Amplitude

Center: 1.5GHz Start: 0Hz

3GHz

Ref.level: 0dBm Unit: dBm

Stop: 3GHz Step: 1MHz

External Gain: 0dB Input Z: 50

Scale: 10dB/

Autoset

Marker

Peak Search

Tr ace

Meas

Amplitude Floor: Auto Span: Auto

Marker: Off Marker Table: Off

Peak Table: Off Peak Threshold: Off

Trace: A Average: Off, 20

ACPR: Off CH SPC: 0 CH BW: 600MHz OCBW %: 0

Marker Trace: Auto All Marker: Off

Peak Sort: Freq Peak Track: Off

Mode: Clear Detection: Normal

OCBW: Off Adj CH Offs: 0MHz Adj CH BWs: 0MHz Phase Jitter: Off

N dB: Off

Preset

Limit Line

Trigger

Display

File

System

Option

Sequence

H & L Limit: Off Pass/ Fail: Off

RBW: Auto SwpTime: Auto

Trigger Delay: 50ms

VBW: Auto Average: Off, 20

Trigger Freq: 1.5GHz

Trigger Mode: Normal

LCD Dimmer: 5 Split Window: Off

Copy Type: Int. Trace

Display Line: Off Display Title: Off

Delete Type: Int. Trace

Rename Type: Ext. Trace

GPIB Add: 2 Aux Sig: Off

External Ref Freq: 10MHz TG Norm Corr: Off Demod AM: Off

System Config: Off Clock: On

TG Output: Off TG Ref Value: 0dBm Demod FM: Off

Sequence: 1 Run Mode: Single

FREQUENCY/SPAN

The Frequency key, together with Span key, sets the frequency scale. Two methods are available. Center-and-Span method defines the center point and surrounding frequency range. Start-and-Stop method defines the beginning and end of the frequency range. Special span settings are available at full and zero spans. The last span setting may also be recalled.

Frequency

Center and Span

Start and Stop

Span

Set frequency adj

Set center frequency...............................................42

Set frequency span .................................................43

Set frequency adj

Set start frequency .................................................44

Set stop frequency..................................................45

Display full frequen

ustment step ...............................42

ustment Step...............................44

cy span (3GHz) .......................46

Display zero span (time domain) ...........................46

Recall the Last Span Setting...................................47

GSP-830 User Manual

View Signal (Center and Span)

Center-and-Span method defines the center frequency and the left/right bandwidth (span) to locate the signal.

Set frequency adjustment step

Background

Frequency adjustment step defines the Arrow keys resolution for center, start, and stop frequency.

Panel operation

1. Press the Frequency key.

2. Press F4 (Step).

3. Enter the value using the

Numerical and Unit keys, Arrow keys, and Scroll knob.

Range

0kHz to 3GHz * Arrow keys and Scroll knob resolution: 1/10 of Span

Set center frequency

Panel operation

1. Press the Frequency key.

2. Press F1 (Center).

3. Enter the value using the

Numerical and Unit keys, Arrow keys, or Scroll knob.

Frequency

Step

1 MHz

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

Frequency

Center

1.5 GHz

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

F 4

F 1

Range

Note

0kHz to 3GHz Arrow keys and Scroll knob resolution: step value

Center frequency and span settings automatically change according to start and stop frequency settings, and vice versa.

FREQUENCY/SPAN

Display

Set frequency span

Panel operation

1. Press the Span key.

Center

Frequency reading

Span

Range

Display

2. Press F1 (Span).

3. Enter the value using the

Numerical and Unit keys, Arrow

Span

3 GHz

F 1

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

keys, and Scroll knob.

2kHz to 3GHz * Arrow keys & Scroll knob resolution: 1-2-5 sequence (0 [zero span], 2kHz, 5kHz, 10kHz, 20kHz, 50kHz,

.....1GHz, 2GHz, 3GHz)

Span

Span reading

Note

• Center frequency and span settings automatically

change according to start and stop frequency settings, and vice versa.

• If the span becomes smaller than the CHBW (channel

bandwidth) in the ACPR or OCBW measurement (page82), the warning “Span is less than CHBW!” appears in the comma

nd window.

GSP-830 User Manual

View Signal (Start and Stop)

Start-and-Stop method defines the beginning (start) and the end (stop) of the frequency range.

Set frequency adjustment Step

Background

Frequency adjustment step defines the Arrow keys resolution for Center, Start, and Stop frequency.

Panel operation

Range

1. Press the Frequency key.

2. Press F4 (Step).

3. Enter the value using the

0.0kHz to 3.0GHz * Arrow keys and Scroll knob resolution: 1/10 of span

Set start frequency

Panel operation

1. Press the Frequency key.

2. Press F2 (Start).

3. Enter the value using the

Numerical and Unit keys, Arrow keys, and Scroll knob.

Frequency

Step

0 kHz

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

Frequency

Start

0 kHz

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

F 4

F 2

Range

Note

0kHz to 3GHz (start frequency  stop frequency) Arrow keys and Scroll knob resolution: step value

Center frequency and span settings automatically change according to start and stop frequency settings, and vice versa.

FREQUENCY/SPAN

Display

Start Frequency

Set stop frequency

Panel operation

1. Press the Frequency key.

Frequency reading

Frequency

Range

Display

2. Press F3 (Stop).

3. Enter the value using the

Numerical and Unit Keys,

Stop

3 GHz

F 3

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

Arrow keys, and Scroll knob.

0.0kHz to 3.0GHz (start frequency  stop frequency) * Arrow keys and Scroll knob resolution: step value

Stop

Frequency

Frequency reading

Note

Center frequency and span settings automatically change according to start and stop frequency settings, and vice versa.

GSP-830 User Manual

Full/Zero Span

Full or zero span setting sets the span to extreme values: 3GHz (full) or 0kHz (zero). They provide faster ways to view signals in certain situations, such as in time domain (zero span) for viewing modulation or in full span for viewing signals with unknown frequencies.

Display full frequency span (3GHz)

Panel operation

1. Press the Span key.

Span

Range

Display

2. Press F2 (Full Span).

Full Span

3GHz (fixed)

Full span also sets these parameters to fixed values.

• Center frequency: 1.5GHz

• Start frequency: 0.0kHz

• Stop frequency: 3.0GHz

Full Span

3.0GHz reading

F 2

Display zero span (time domain)

Panel operation

Range

1. Press the Span key.

2. Press F3 (Zero Span).

Center frequency (fixed)

Span

Zero Span

F 3

FREQUENCY/SPAN

Display

Zero span also sets these parameters to fixed values.

• Start frequency: same as the center frequency

• Stop frequency: same as the center frequency

The diagram shows an example of observing the amplitude modulation of the input signal.

Amplitude

modulation

Start= Center= Stop frequency

0kHz Span

Note

When using zero span for viewing amplitude modulation, make sure that the RBW setting is large enough. For RBW setting details, see page96.

Recall the Last Span Setting

Panel operation

Nesting level

1. Press the Span key.

2. Press F4 (Last Span).

3. The span setting goes back to

the previous one.

1 level

Span

Last Span

F 4

GSP-830 User Manual

AMPLITUDE

The Amplitude key sets the vertical attribute of the display, including the upper limit (reference level), vertical range (amplitude scale), vertical unit, and compensation for external gain or loss (external offset). Amplitude correction adjusts the frequency response distortion caused by external networks. The optional pre-amplifier GAP-801 and GAP-802 boosts the level of a weak input signal before it enters the GSP-830. The input impedance can also be adjusted according to the application needs.

Vertical Scale Setting

Amplitude Correction

Set reference ampli

Select amplitude s

Select amplitude un

Set external offset

Correct amplitude step by

Delete entire correct

Recall existing corre

tude......................................... 49

cale........................................... 50

it ............................................ 50

level ......................................... 51

ion set data ........................... 55

ction set................................. 55

step.............................. 52

Pre-Amplifier

Input Impedance

Save/copy/delete/rename corr

Use Pre-Amplifier (

Select input impedance (50Ω/75Ω)

Set impedance offset (75Ω only)

Optional)................................. 56

ection file............... 56

.......................... 57

...................... 57

AMPLITUDE

Set Vertical Scale

Vertical display scale is defined by the reference amplitude, amplitude range, measurement unit, and external gain/loss.

Set reference amplitude

The reference level defines the amplitude at the top of the displayed range (see below screen snapshot).

Panel operation

1. Press the Amplitude key.

Amplitude

2. Press F1 (Ref.Level).

3. Enter the value using the

Numerical and Unit keys, Arrow keys, and Scroll knob.

*Arrow keys and Scroll knob resolution: vertical scale

Range dBm

dBmV

dBuV

Display

See page50 for selecting amplitude units.

Reference Level Reading

110 to +20 dBm, 0.1dB resolution

63.01 to +66.99 dBmV, 0.01dB resolution

3.01 to +126.99 dBuV, 0.01dB resolution

Ref.Level

-30.0dBm

GHz /

Sec

MHz / mSec

kHz /

Sec

BK SP

Reference level

F 1

Enter

GSP-830 User Manual

Select amplitude scale

Panel operation

1. Press the Amplitude key.

Amplitude

Range

Display

2. Press F2 (Scale dB/Div)

repeatedly to select the scale.

10, 5, 2, 1 dB/Div

Scale reading

Scale dB/Div

10 5 2 1

F 2

Select amplitude unit

Panel operation

Range dBm

dBmV

1. Press the Amplitude key.

2. Press F3 (Units).

3. Select and press the unit from

F1 (dBm), F2 (dBmV), and F3 (dBuV).

4. Press F6 (Return) to go back to

the previous menu.

110 to +20 dBm

63.01 to +26.99 dBmV

Amplitude

Units...

dBm

dBmV

dBuV

Return

F 3

F 1

F 2

F 3

F 6

dBuV

3.01 to +126.99 dBuV

AMPLITUDE

Set external offset level

Background

External offset compensates the amplitude gain or loss caused by an external network or device.

Panel operation

Range

Icon

Example Before (offset: 0dB)

1. Press the Amplitude key.

2. Press F4 (Ext.Gain).

3. Enter the value using the

Numerical keys and dB or Enter key.

20.0dB to +20.0dB, 0.1dB resolution

The amplitude icon appears at the bottom of the display when the external offset changes.

Reference: -27dBm

Amplitude

Ext.Gain

0dB

GHz / Sec

MHz /

mSec

kHz /

Sec

BK SP

F 4

Enter

After (offset: −3dB)

Offset: 0dB

Reference: -30dBm

Offset:

-3dB

Icon

GSP-830 User Manual

Amplitude Correction

Overview

Background

Amplitude correction adjusts the GSP-830’s frequency response by changing amplitudes for specific frequencies.

Range Correction set

Amplitude

5 sets, 30 correction points each

40 to +40dB per correction point,

0.1dB resolution

Frequency

Icon

The amplitude icon appears at the bottom of the display when amplitude correction is on.

9kHz to 3GHz, 1kHz resolution

Correct amplitude step by step

Example description

Correction level

2.2GHz

2.3GHz

In this example, the network between the GSP-830 and DUT distorts the waveform and pushes the amplitude down at around 2.4GHz. Amplitude correction can bring the amplitude back to its original level.

In this example the amplitude around 2.4GHz is boosted by +1 to +3dB as shown below.

+2.5dB

+1.3dB

2.4GHz

2.5GHz

2.6GHz

Waveform (before correction)

The frequency response is distorted (non-flat) and the level is attenuated by 2 to 3dB.

+2.8dB

+2.5dB

+1.2dB

AMPLITUDE

1. Enter correction edit mode

2. Select correction set

1. Press the Amplitude key.

2. Press F5 (Corrections).

3. Press F1 (Edit). The display

shows the correction sets.

Press F1 (Select) repeatedly to select the correction set. 5 sets, 30 points each, are selectable.

Amplitude

Corrections..

Edit...

Select

2 3 4 5

F 5

F 1

Example: correction set 3 selected

3a. Add correction

point

1. Make sure that the cursor is

pointing to the first empty frequency point.

2. If necessary, move the cursor

using the Up/Down keys.

3. Enter the frequency using the

Numerical and Unit keys: 9kHz to 3GHz.

4. The cursor automatically

moves to the Gain side. Enter the gain using the Numerical keys and dB key Range: 40dB to +40dB.

Select

1 2 3

4 5

Pt. Freq. (MHz) Gain

1 2 3 4 5

F 1

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

Pt. Freq. (MHz) Gain

1 2 3 4 5

GHz / Sec

MHz / mSec

kHz /

Sec

BK SP

2200

Enter

5. Repeat the above procedure for all correction data.

The points are automatically sorted by frequency (low → high).

GSP-830 User Manual

3b. Modify

correction point

1. Move the cursor using the

Arrow keys.

2. Enter the new frequency or

gain using the Numerical keys and Unit keys or dB key.

3c. Delete

correction point

1. Move the cursor to the target

using the Arrow keys.

2. Press F2 (Delete). The

frequency and gain are deleted together.

3. To undo the last deletion,

press F4 (Undelete).

Example: point 3 deleted

Pt. Freq. (MHz) Gain

1 2 3 4 5

2200 2300 2400 2500 2600

2.5

1.3

2.8

1.8

1.2

Pt. Freq. (MHz) Gain

1 2 3 4 5

GHz /

Sec

MHz / mSec

kHz /

Sec

BK SP

2200 2300 2400 2500 2600

Enter

Delete

Undelete

Pt. Freq. (MHz) Gain

1 2 3 4 5

2200 2300 2500 2600

F 2

F 4

2.5

1.3

1.8

1.2

2.5

1.3

2.8

1.8

1.2

4. Save correction set

5. Activate correction

After correction

1. Press F5 (Save Now). The

edited data is saved internally.

2. Press F6 (Return) to go back

to the previous menu.

1. Press F2 (Correction On) to

turn on the correction.

Save Now

Return

Correction

Off

F 5

F 6

F 2

2. The amplitude icon appears at

the bottom of the display.

Frequency response becomes linear (original), and the gain is compensated by +2 to +3dB.

AMPLITUDE

Delete entire correction set data

Panel operation

1. Press the Amplitude key.

Amplitude

2. Press F5 (Corrections).

3. Press F1 (Edit). The display

shows the correction sets.

4. Press F1 (Select) repeatedly to

select the correction set.

5. Press F3 (Delete All).

6. Press F2 (Yes). The whole data

in the specified correction set is deleted. To cancel deletion, press F1 (No).

7. Press F6 (Return) repeatedly to

go back to previous menus.

Recall existing correction set

Panel operation

1. Press the Amplitude key.

Corrections..

Edit...

Select

2 3 4 5

Delete All..

Yes

Return

Amplitude

F 5

F 1

F 3

F 1

F 2

F 6

2. Press F5 (Corrections).

Corrections..

F 5

3. Press F1 (Edit). The display

shows the correction sets.

4. Press F1 (Select) repeatedly to

select the correction set.

5. Press F6 (Return) to go back

to the previous menu.

6. Press F2 (Correction On) to

activate the correction data.

Edit...

Select

2 3 4 5

Return

Correction

Off

F 1

F 6

F 2

GSP-830 User Manual

Save/copy/delete/rename correction file

Background

Correction files can be saved, copied, deleted, or renamed using the file utilities. Press the File key to access each function.

File

Save/Copy

Press F1 (Copy). For detailed steps, see page115.

Delete

Press F2 (Delete). For detailed steps, see page118.

Rename

Press F3 (Rename). For detailed steps, see page120.

Use Pre-Amplifier (Optional)

Background

Range GAP-801

GAP-802

Connection

The optional pre-amplifier GAP-801 or GAP-802 boosts weak input signals such as in EMI testing to levels that are easy to handle, over the entire frequency range.

9kHz to 6GHz, 10dB typical

9kHz to 3GHz, 20dB typical

1. Connect the pre-amplifier between the input terminal

and DUT signal output.

Copy...

Delete...

Rename...

F 1

F 2

F 3

2. Connect the pre-amplifier power input to the

GSP-830 DC 9V output.

DUT

Power

RF Input

3. The signal level becomes amplified.

Amplitude

boost

AMPLITUDE

Set Input Impedance

Select input impedance (50Ω/75Ω)

Background

Panel operation

In most cases, the default 50Ω is appropriate. Use 75Ω when specifically required, such as in cable TV signals.

Press the Amplitude key.

Amplitude

2. Press F6 (More).

3. Press F1 (Input Z 50Ω/75Ω) to

select the impedance.

4. When 75Ω is selected, the

amplitude icon appears at the bottom of the display.

Set impedance offset (75Ω only)

Background

Panel operation

Impedance transformation to 75 Ω is also available through external devices such as impedance converter module (optional accessory ADP-101). In these cases an external loss will be induced. Impedance offset can compensate this effect.

Press the Amplitude key.

Amplitude

F 6

2. Press F6 (More).

3. Make sure 75Ω is selected in F1

(Input Z).

4. Press F2 (Input Z Cal).

5. Enter the offset using the

Numerical keys and dB or Enter

Input Z Cal

5.9dB

GHz / Sec

MHz /

mSec

kHz /

Sec

BK SP

Enter

key.

Range

10dB to +10dB, 0.1dB resolution

F 6

F 2

GSP-830 User Manual

AUTOSET

The Autoset function checks input signal characteristics and automatically searches the maximum peak signal, then sets up the suitable horizontal and vertical scale. The amplitude floor (which limits the search range) and frequency observation span (which limits the viewing range) are configurable according to the application needs.

Overview

Run

Limit Range

How Autoset W

Run Autoset........................................................... 60

Limit vertical sea

Limit horizontal view range ................................... 61

orks ............................................... 59

rch range..................................... 61

AUTOSET

How Autoset Works

Description

Flowchart

The Autoset function searches the peak signals in two stages (full span & 0Hz - 100MHz limited span), picks up the signal peak with the maximum amplitude, and then shows it in the display. The following flowchart graphically shows the simplified procedures.

GSP-830 User Manual

Run Autoset

Panel operation

1. Press the Autoset key.

Autoset

2. Press F1 (Autoset).

Search range Amplitude dBm

dBmV

dBuV

Frequency

* These ranges are applicable when both Amplitude floor

0kHz to 3.0GHz

80 to +20dBm

33.01to+66.99dBmV

+26.99to+126.99dBuV

(F2) and Span limit (F3) are set to Auto.

Example: before Autoset

Start frequency: 0kHz Stop frequency: 3GHz

Span: 3GHz Signal peak: 100MHz

Center frequency: 1.5GHz Reference level: 30dBm

Autoset

F 1

Example: after Autoset

Start frequency: 97.5MHz Stop frequency: 102.5MHz

Span: 5MHz Signal peak: 100MHz

Center frequency: 100MHz Reference level: 30dBm

AUTOSET

RBW/VBW/Sweep after Autoset

All the three BW related parameters, RBW, VBW, and Sweep, will be reset to Auto mode when using Autoset, regardless of their previous settings.

Limit vertical search range

Background

Panel operation

You can set the amplitude floor so that the signals lower than the setting will be ignored by the Autoset search.

Press the Autoset key.

2. Press F2 (Amp. Floor) to switch

the range from Auto (whole range) to manual (limited range).

3. Enter the amplitude in dB using

the Numerical keys and dB or Enter key. The Command window shows the setting.

Autoset

Amp.Floor

Auto Man

GHz /

Sec

MHz /

mSec

kHz /

Enter

Sec

BK SP

Amp. : -30dBm

F 2

Range dBm

dBmV

dBuV

See page50 for selecting amplitude units.

80 to +20dBm, 0.1dB resolution

33.01 to +66.99dBmV, 0.01dB resolution

+26.99 to +126.99dBuV, 0.01dB resolution

Limit horizontal view range

Background

Panel operation

You can change the frequency span limit in the display to get a better view of the Autoset result. By default, the frequency span after Autoset is set at 3MHz (Auto).

Press the Autoset key.

2. Press F3 (Span) to switch the

range between Auto (3MHz fixed limit) to Manual.

3. Enter the frequency using the

Numerical and Unit keys.

Autoset

Span

Auto Man

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

Span : 10MHz

F 3

Range

Zero span, 2kHz to 3GHz (Manual) 3MHz fixed (Auto)

GSP-830 User Manual

MARKER

A Marker shows the frequency and amplitude of a waveform point. The GSP-830 can activate up to 5 markers or marker pairs simultaneously. The marker table helps editing and viewing multiple markers in a single display. You can also enable/disable all markers at once. A delta marker shows the frequency and amplitude differences between the reference marker. The GSP-830 can automatically move a marker to various locations including peak signal, center frequency, and start/stop frequency. More marker operations regarding signal peaks are also available in the Peak Search function.

Activate Marker(s)

Move Marker(s)

Activate normal ma

Activate all 5 normal markers at once ................... 64

Activate delta marker............................................. 64

Move marker man

Move marker to highest peak ................................ 65

rker ......................................... 63

ually .......................................... 65

Move marker and highest peak to center............... 66

Move marker to various locations ......................... 66

Move marker to trace ............................................ 67

Marker Table

Show Markers in T

able........................................... 67

MARKER

Activate/de-activate marker

Range Normal

marker

Delta

5 pairs

marker

Amplitude

120 to +20dBm, 0.1dB resolution 73.01 to +66.99dBmV, 0.01dB resolution 13.01 to +126.99dBuV, 0.01dB resolution

Frequency

0kHz to 3GHz

Activate normal marker

Panel operation

1. Press the Marker key.

2. Press F1 (Marker) repeatedly

to select the marker ID from 1 to 5.

3. Press F2 (On) and turn On

the selected marker.

4. Make sure Normal is selected

in F3. If necessary, press F3 and select it.

Marker

2 3 4 5

On Off

F 1

F 2

Display

5. Repeat the above steps for the

number of markers required.

The upper right corner of the display shows the active marker.

Marker ID, Frequency, Amplitude

GSP-830 User Manual

Activate all 5 normal markers at once

Panel operation

1. Press the Marker key.

Marker

Display

2. Press F6 (More).

3. Press F3 (All Mkrs On) to turn

On all 5 normal markers.

4. To view all marker status, press

F2 (Marker Table On). The

All Mkrs

Off

Marker Table

On Off

F 6

F 3

F 2

frequency and the amplitude of the markers appear in table list.

The marker table shows all 5 marker frequencies and amplitudes.

Activate delta marker

Panel operation

Display

1. Press the Marker key.

2. Press F1 (Marker) repeatedly

to select the marker ID from 1 to 5.

3. Press F2 (On) and turn on the

selected marker.

4. Make sure Mkr is selected in

F3. If necessary, press F3 and select Mkr.

5. Repeat the above steps for the

number of markers required.

The upper right corner of the display shows the active delta marker pair.

Marker

2 3 4 5

On Off

F 1

F 2

MARKER

Move marker

This section assumes at least one marker is already activated (page63). Marker frequency positions can be set

ually, or can be automatically positioned at specific

man locations using the menu shortcuts.

Move marker manually

Panel operation

1. Check the active marker at the

top right corner of the display.

2. Move the marker using the

Left/Right keys and Scroll knob, or directly enter the frequency using the Numerical and Unit keys.

Move marker to highest peak

Method 1

Method 2

1. Check the active marker at the

top right corner of the display.

2. Press the Marker key.

3. Press F4 (To Peak).

1. Alternatively, press the Peak

Search key.

2. Press F1 (Pk Search).

GHz / Sec

MHz /

mSec

kHz /

Sec

BK SP

Marker

To Peak

Peak Search

Pk Search

Enter

F 4

F 1

Method 3 (marker tracked to the peak)

1. Another method moves marker

to the peak and also tracks it.

Peak Search

Press the Peak Search key.

2. Press F6 (More).

3. Press F4 and select Track On.

The marker is tracked to the

Track

Off

F 6

F 4

peak.

4. The peak tracking icon appears

at the bottom of the display.

GSP-830 User Manual

Move marker and highest peak to center

Method 1

1. Check the active marker at the

top right corner of the display.

2. Press the Marker key.

3. Press F4 (To Peak). The marker

moves to the signal peak.

4. Press F5 (Mkr→Center). The

signal peak moves to the center.

Method 2

1. Alternatively, press the Peak

Search key.

2. Press F5 (Mkr→Center). The

signal peak moves to the peak, then to the display center.

Move marker to various locations

Panel operation

1. Check the active marker at the

top right corner of the display.

2. Press the Marker key.

Marker

To Peak

Mkr Center

Peak Search

Mkr Center

Marker

F 4

F 5

3. Press F6 (More).

F 6

4. Press F4 (Mkr to...)

Mkr to...

F 4

5. Select the destination and press

F1 (Center) to F5 (Ref Lvl).

Mkr Center

F 1

Center: center frequency Start: start frequency

Mkr Start

F 2

Stop: stop frequency CF Step: set the marker

Mkr Stop

F 3

frequency as the frequency step value

Mkr CFStep

F 4

Ref Lvl: reference amplitude level

6. Press F6 (Return) to go back to

the previous menu.

Mkr Ref Lvl

Return

F 5

F 6

MARKER

Move marker to trace

Panel operation

1. Check the active marker at the

top right corner of the display.

Range Auto

Tra ce A

Tra ce B

Tra ce C

2. Press the Marker key.

3. Press F6 (More).

4. Press F1 (Marker Trace).

The marker moves to the active signal/trace.

The marker moves to TraceA.

The marker moves to TraceB.

The marker moves to TraceC.

Show Markers in Table

Panel operation

1. Check the active marker at the

top right corner of the display.

2. Press the Marker key.

Marker

Marker Trace

Auto A B C

Marker

F 6

F 1

Display

3. Press F6 (More).

4. Press F2 (Marker Table On).

Marker Table

On Off

5. The marker ID, frequency, and amplitude list

appears in the lower half of the display, updated in real time.

F 6

F 2

GSP-830 User Manual

PEAK SEARCH

The Peak search function automatically locates signal peaks in various conditions, such as in next highest peak and minimum peak. The Peak Search overlaps its feature with the Marker function, and it is best to use the two together. All peaks can be viewed at once using the peak table, with configurable amplitude threshold and sorting order.

Search Signal Peaks

Show Peak Table

Search signal peak ................................................. 69

Search next highest peak ....................................... 70

Search highest peak and move to center ............... 70

Search minimum amplitude .................................. 71

Activate peak table................................................. 71

Set peak threshold ................................................. 72

Sort peak ............................................................... 72

PEAK SEARCH

Search Signal Peak

Peak Search puts a marker on the target signal peak. If no marker has been activated, the GSP-830 automatically activates marker 1. The peak signal frequency and amplitude appear at the top right corner of the display.

Marker ID, Frequency, Amplitude

Search signal peak

Method 1

Method 2

Method 3 (marker tracked to the peak)

1. Press the Peak Search key.

2. Press F1 (Pk Search).

1. Make sure that the marker is

2. Press F4 (To Peak).

1. Another method continuously

2. Press F6 (More).

already activated. If not, press the Marker key.

tracks the peak signal. Press the Peak Search key.

Peak Search

Pk Search

Marker

To Peak

Peak Search

F 1

F 4

F 6

3. Press F4 (Track On). The

marker is tracked to the peak

Track

Off

F 4

signal.

4. The peak tracking icon appears

at the bottom of the display.

GSP-830 User Manual

Search next highest peak

The marker keeps moving to the next highest peak, in descending order.

Panel operation

1. Press the Peak Search key.

Peak Search

Display

2. Press F2 to F4 repeatedly.

Next Peak moves the marker to the next highest peak. Next Pk Right moves the marker to the next highest peak on the right side (higher frequency). Next Pk Left moves the marker to the next highest peak on the left side (lower frequency)

F4 F3

Next Peak

Next Pk

Right

Next Pk

Left

F 2

F 3

F 4

Search highest peak and move to center

Method 1

Method 2

1. Press the Peak Search key.

2. Press F1 (Pk Search).

1. Make sure that the marker is

already activated. If not, press the Marker key.

2. Press F4 (To Peak).

3. Press F5 (Mkr→Center).

Peak Search

Mkr Center

Marker

To Peak

Mkr Center

F 5

F 4

F 5

PEAK SEARCH

Search minimum amplitude

Panel operation

1. Press the Peak Search key.

Peak Search

2. Press F6 (More).

3. Press F5 (Min Search). The

active marker moves to the deepest valley in the trace.

Minimum Amplitude

Show Peak Table

Min Search

F 6

F 5

Activate peak table

Panel operation

1. Press the Peak Search key.

2. Press F6 (More).

3. Press F1 (Peak Table On). The

peak table appears in the lower half of the display.

Peak Search

Peak Table

Off

F 6

F 1

Range

10 peaks maximum

GSP-830 User Manual

Set peak threshold

Only the peaks below the threshold amplitude will be listed in the table.

Panel operation

1. Press the Peak Search key.

Peak Search

2. Press F6 (More).

3. Press F1 (Peak Table On).

4. Press F3 (Pk Threshold On).

Peak Table

Off

Pk Threshold

On Off

5. A horizontal line appears on the display. The

F 6

F 1

F 3

GSP-830 searches and lists the peaks below this threshold amplitude.

6. Use the Arrow keys or the

Scroll knob to move the threshold line.

Sort peak

The peaks are sorted in ascending frequency or descending amplitude order.

Panel operation

1. Press the Peak Search key.

Peak Search

Example: amplitude sort

2. Press F6 (More).

3. Press F2 (Peak Sort) to switch

between frequency and amplitude sorting.

Peak Sort

Freq Amp

F 6

F 2

TRACE

A Trace keeps track of waveform variants. Three traces, A, B, and C, are available for accumulating the peak level, freezing the current waveform shape, and averaging the waveform. Trace math operations are available using trace A and B.

Detection modes configure the way the GSP-830 samples the input analog signal for digitizing.

View Trace

Move Trace

Tra ce M at h

Detection Mode

Select (activate) tr

View real-time updated trace (default)................... 74

View peak-hold trace .............................................. 74

Freeze trace............................................................ 75

Hide trace .............................................................. 75

View averaged trace ...............................................75

Move Marker to T

Save/copy/delete/rename trace file .......................77

Run Trace Math...................................................... 78

Select Signal Dete

ace ............................................ 74

race ............................................76

ction Mode ................................ 80

GSP-830 User Manual

View traced waveform

Select (activate) trace

Panel operation

1. Press the Trace key.

Trace

2. Press F1 (Trace) repeatedly to

select the trace.

Range A (green)

The default trace which is always activated. Together with trace B, runs trace math operation (page78).

B (amber)

Together with trace A, runs trace math operation (page78).

C (yellow)

View real-time updated trace (default)

Background

Panel operation

The trace is updated at every sweep. The old trace is cleared up and a new trace is drawn on the display according to the latest measurement.

1. Press the Trace key.

2. Press F2 (Clear).

Trace

A B

Clear

Trace

F 1

F 2

3. The clear mode icon appears at

the bottom of the display.

View peak-hold trace

Background

Panel operation

In the peak hold mode, the amplitude of the new trace is compared with the last one at each sweep. Only the higher amplitude replaces old trace points, thus holding the highest (peak) value.

1. Press the Trace key.

2. Press F3 (Peak Hold).

Trace

Peak Hold

F 3

TRACE

Display

Freeze trace

Panel operation

3. The peak hold trace icon

appears at the bottom of the display.

Peak Hold

Clear

(default)

1. Press the Trace key.

Trace

2. Press F4 (View). The trace

shape and location becomes fixed.

3. The view mode (freeze) icon

appears at the bottom of the display.

Hide trace

Panel operation

1. Press the Trace key.

2. Press F5 (Blank). The trace

disappears from the display.

3. To bring back the trace again,

press F2 (Clear).

View averaged trace

Panel operation (Method1)

1. Press the Trace key.

View

Trace

Blank

Clear

Trace

F 4

F 5

F 2

2. Press F6 (More).

F 6

GSP-830 User Manual

Panel operation (Method2)

Range

Example: after average

3. Press F1 (AVG On) to turn on

the average mode.

4. The average mode icon appears

at the bottom of the display.

5. Enter the average number using

the Numerical keys and Enter key.

1. Press the BW key.

2. Press F4 (AVG On) to turn on

averaging.

3. Enter the average time using the

numerical keys and Enter key.

1 to 200

Averaged 20 times

AVG

Off

AVG

Off

F 1

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

F 4

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

Move Marker to Trace

Panel operation

Range Auto

1. Check the active marker at the

top right corner of the display.

2. Press the Marker key.

3. Press F6 (More).

4. Press F1 (Marker Trace).

The marker moves to the active signal or trace.

Marker

Marker Trace

Auto A B C

F 6

F 1

TRACE

Tra ce A

Tra ce B

Tra ce C

The marker moves to TraceA.

The marker moves to TraceB.

The marker moves to TraceC.

Display Marker on TraceC

Save/copy/delete/rename trace file

Background

Trace files can be saved, copied, deleted, or renamed using the file utility. Press the File key to access each function.

File

Save/Copy

Delete

Rename

Press F1 (Copy). For detailed steps, see page115.

Press F2 (Delete). For detailed steps, see page118.

Press F3 (Rename). For detailed steps, see page120.

Copy...

Delete...

Rename...

F 1

F 2

F 3

GSP-830 User Manual

Run Trace Math

Background

Various mathematical operations are available using trace A and trace B. Both traces have to be activated in advance (page74). After the math operation, the trace mode c

hanges into the View mode (page75).

Panel operation

1. Press the Trace key.

2. Press F6 (More).

3. Press F2 (Trace Math).

4. Select and press the type of

math operation from F1 to F5.

A↔B: Swaps trace A and B. A+B→A: Adds trace A and B. A−B→A: Subtracts trace B

from trace A. A+const→A: Adds a constant

value to trace A. A−const→A: Subtracts a

constant value from trace A.

5. When A+const / A−const are

selected, enter the constant value using the Numerical keys and dB or Enter key. Range: 40 to +40dB

Trace

Trace Math..

A B

A+B A

A-B A

A+const A

A-const A

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

F 6

F 2

F 1

F 2

F 3

F 4

F 5

Example: A↔B

6. The trace math icon appears at

the bottom of the display.

TRACE

Example: A+B→A

Example: A−B→A

Example: A+constant→A (5 dB)

Example: A−constant→A (5 dB)

GSP-830 User Manual

Select Signal Detection Mode

Background

In order to show the incoming signal on the display, the GSP-830 first converts the input signal to a video signal, digitizes it, then uses a detector to pick up the samples for display. By configuring the detection mode, certain signals can be viewed more clearly and/or sharply.

Panel operation

1. Press the Trace key.

2. Press F6 (More).

3. Press F3 (Detection).

4. Select the signal detection type

from F1 to F5 and press it. See below for the description of each type.

5. Press F6 (Return) to go back to

the previous menu.

Trace

Detection..

Normal

Sample

Peak+

AVG

QPeak

Return

F 6

F 3

F 1

F 2

F 3

F 4

F 5

F 6

Parameter Normal

The default mode. When the signal level is constantly increasing or decreasing, the positive peaks are detected. Otherwise, detecting mode switches between positive peak and negative peaks. Useful for picking up burst phenomenon while avoiding excessive noise.

Sample

Detects signals randomly. Useful when detecting noise-like signals, but tends to miss burst phenomenon.

Peak+

(positive peak)

Detects positive peak signals. Useful for detecting sinusoid signals, but tends to pick up more noise than other modes.

TRACE

AVG

(average)

Available when the optional EMI filter is installed. Detects the average power level of the samples using low pass filter. Useful for reducing the noise level. For EMI filter details, see page146.

QPeak

(quasi-peak)

Available when the optional EMI filter is installed. Detects the quasi-peak power level of the samples. Useful for viewing in zero span without missing signal variations. For EMI filter details, see page146.

Example Normal detection mode

Sample detection mode

Peak+ detection mode

GSP-830 User Manual

POWER MEASUREMENT

The Power Measurement function includes four types of frequently used complex measurement procedures: ACPR, OCBW, N dB, and Phase Jitter. Each item is configurable and updated in real-time.

ACPR

OCBW

N dB

Phase Jitter

Overview................................................................ 83

ACPR measurement step ....................................... 83

Overview................................................................ 86

OCBW measurement step...................................... 86

N dB Measurement

Phase Jitter Measur

................................................ 88

ement...................................... 89

POWER MEASUREMENT

ACPR Measurement

Overview

Background

ACPR (Adjacent Channel Power Ratio), or ACLR (Adjacent Channel Leakage Ratio), refers to the amount of leakage power coming from the main radio channel which affects adjacent channels as signal distortion.

Parameter Channel

bandwidth

The frequency bandwidth the target channel occupies. Range: 0kHz to Current span

Channel space

The frequency distance between each main channel. Range: 0kHz to 3GHz

Adjacent channel

bandwidth 1 & 2

The frequency bandwidth the adjacent channels occupy. Range: 1kHz to 3GHz

Adjacent channel

offset 1 & 2

The frequency distance between the adjacent channels and main channel. Range: 1kHz to 3GHz

ACPR measurement step

1. Activate ACPR

1. Press the Measurement key.

2. Press F2 (ACPR On).

Meas

ACPR

Off

F 2

3. The display switches to ACPR mode, updating the

ACPR results in the lower half of the display.

Lower ACPR 1 Upper ACPR 1

Lower

ACPR 2

Upper ACPR 2

GSP-830 User Manual

2. Set channel BW

3. Set adjacent channel1 bandwidth

1. Press F1 (Channel Setup).

2. Press F1 (CH BW).

3. Enter the channel BW using the

Numerical and Unit keys.

Channel

Setup...

CH BW

GHz /

Sec

MHz / mSec

kHz /

Sec

BK SP

F 1

Enter

Range: 0kHz to Current span

4. The value is updated in the

Channel BW column in MHz.

Note: • If the span (page43) becomes less than the

CHBW setting, the warning “Span is less than CHBW!” appears in the command window.

• If the CHBW is 0kHz, the warning “CHBW is

zero!” appears in the command window.

1. Press F4 (ADJ CH Offset).

ADJ CH Offset...

F 4

4. Set adjacent channel1 offset

2. Press F1 (Adj CH BW1).

3. Enter the adjacent channel 1

bandwidth using the Numerical and Unit keys. Range: 1kHz to 3GHz

4. The value is updated in the Adj

CH BW1 column in MHz.

1. Press F2 (Adj CH Offs1).

2. Enter the adjacent channel1

offset using the Numerical and Unit keys. Range: 1kHz to 3GHz

3. The value is updated in the Adj

CH Offset1 column in MHz.

Adj CH BW1

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

Adj CH Offs1

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

F 1

F 2

5. Set adjacent channel2 bandwidth

1. Press F3 (Adj CH BW2).

Adj CH BW2

F 3

POWER MEASUREMENT

GHz /

Sec

2. Enter the adjacent channel2

bandwidth using the Numerical

MHz /

mSec

kHz /

Enter

Sec

BK SP

and Unit keys. Range: 1kHz to 3GHz

6. Set adjacent channel2 offset

7. Set channel space

3. The value is updated in the Adj

CH BW2 column in MHz.

1. Press F4 (Adj CH Offs2).

2. Enter the adjacent channel 2

offset using the Numerical and Unit keys. Range: 1kHz to 3GHz

3. The value is updated in the Adj

CH Offset2 column in MHz.

1. Press F2 (Channel SPC).

2. Enter the channel space using

the Numerical and Unit keys. Range: 0kHz to 3GHz

3. The value is updated in the

Channel Space column in MHz.

Adj CH Offs2

GHz /

Sec

MHz /

mSec

kHz /

Enter

Sec

BK SP

CH SPC

GHz /

Sec

MHz /

mSec

kHz /

Enter

Sec

BK SP

F 4

F 2

8. Move channel up/down

1. Press F6 (Return) twice.

2. Press F4 (CH Up) or F5 (CH

Down) to switch the measurement to the next channel.

Return

CH Up

CH Down

F 6

F 4

F 5

GSP-830 User Manual

OCBW Measurement

Overview

Background

OCBW (OCcupied BandWidth) refers to the bandwidth of the channel that consumes (occupies) the specified amount of power.

Parameter Channel

bandwidth

The frequency bandwidth that the target channel occupies. 0kHz to Current span

Channel space

The frequency distance between each main channel. 0kHz to 3GHz

OCBW %

The ratio of occupied bandwidth as the amount of power consumed. 0% to 100%, 0.1% resolution

OCBW measurement step

1. Activate OCBW

1. Press the Measurement key.

2. Press F3 (OCBW On).

3. The display switches to OCBW mode, updating the

OCBW result in the lower half of the display.

Meas

OCBW

Off

F 3

2. Set channel BW

1. Press F1 (Channel Setup).

Channel

Setup...

OCBW

CH Power

F 1

POWER MEASUREMENT

4. Set OCBW %

2. Press F1 (CH BW).

3. Enter the channel BW using the

Numerical and Unit keys.

CH BW

MHz /

Sec

BK SP

F 1

GHz /

Sec

mSec

kHz /

Enter

Range: 0kHz to Current span

4. The value is updated in the

Channel BW column in MHz.

Note: • If the span (page43) becomes less than the

CHBW setting, the warning “Span is less than CHBW!” appears in the command window.

• If the CHBW is 0kHz, the warning “CHBW is

zero!” appears in the command window.

1. Press F3 (OCBW %).

2. Enter the OCBW % using the

Numerical keys and Enter key. Range: 0% to 100%

OCBW %

GHz / Sec

MHz /

mSec

kHz /

Sec

BK SP

F 3

Enter

3. Set channel space

5. Move channel up/down

3. The value is updated in the

OCBW % column.

1. Press F2 (Channel SPC).

2. Enter the channel space using

the Numerical and Unit keys. Range: 0kHz to 3GHz

3. Space column updates the value

in MHz.

1. Press F6 (Return) twice.

2. Press F4 (CH Up) or F5 (CH

Down) to switch the measurement to the next channel.

CH SPC

GHz / Sec

MHz /

mSec

kHz /

Sec

BK SP

Return

CH Up

CH Down

F 2

Enter

F 6

F 4

F 5

GSP-830 User Manual

N dB Measurement

Background

N dB refers to the frequency bandwidth of a channel that covers the specified amplitude.

Parameter N dB

1. Activate N dB

1. Press the Measurement key.

2. Press F6 (More).

3. Press F1 (N dB BW On).

4. The display switches to N dB

mode, updating N dB result in the lower half of the display.

0.1dB to 80dB, 0.1dB resolution

Meas

N dB BW

Off

3dB Bandwidth

F 6

F 1

2. Set amplitude

1. Press F2 (NdB) to set the

amplitude which the BW covers.

2. Enter the amplitude using the

Numerical keys and dB or Enter key. Range: 0.1dB to 70dB

N dB

F 2

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

POWER MEASUREMENT

Phase Jitter Measurement

Background

Phase Jitter refers to the amount of phase fluctuation that leads to shortening or lengthening the center frequency.

Parameter Start offset

Beginning frequency offset in reference to the center frequency. 0kHz to ½ of span, 0.1MHz resolution

Stop offset

End frequency offset in reference to the center frequency. 0kHz to ½ of span, 0.1MHz resolution

1. Activate Phase Jitter

1. Press the Measurement key.

2. Press F6 (More).

3. Press F3 (Phase Jitter On). Phase Jitter

4. The display switches to Phase jitter mode, updating

Phase jitter result in the lower half of the display.

Meas

On Off

Phase fluctuation Time fluctuation

F 6

F 3

2. Set start/stop offset

1. Press F4 (Phase Jitter Setup).

2. Press F1 (Start Offset) and F2

(Stop Offset) to set the amount of the beginning and end offset.

3. Enter the offset using the

Numerical/Unit keys.

Phase Jitter

Setup

Start

Offset

Stop

Offset

GHz / Sec

MHz /

mSec

kHz /

Sec

BK SP

F 4

F 1

F 2

Enter

Range: 0kHz to ½ of span

GSP-830 User Manual

LIMIT LINE

A Limit Line sets the upper and lower amplitude limit over the entire frequency range. Limit lines can be used to detect whether the input signal level is above, below, or within the specified amplitude. The result, pass or fail, is shown at the bottom of the display in real-time.

Edit

Pass/Fail Test

Limit Line File

Edit Limit

Run Pass/Fail test.................................................. 94

Save/copy/delete/rename limi

Line ....................................................... 91

t line file................. 94

LIMIT LINE

Edit Limit Line

Parameters Editing point

Maximum 10 points for each limit line, high or low.

Frequency

Amplitude

9kHz to 3GHz per editing point.

Per editing point:

130 to +20dBm 83.01dBmV to +66.99dBmV 23.01dBuV to +126.99dBuV

1. Activate Limit Line

1. Press the Limit Line key.

2. Press F1 (H Limit On) and/or

F2 (L Limit On) to activate the high and/or low limit line.

3. The limit line appears on the

display. Blue:  H limit line Yellow:  L limit line

Limit Line

H Limit

On Off

L Limit

Off

F 1

F 2

2a Activate limit

line editing table

1. Press F3 (Edit).

2. Press F1 (Limit) to select the

limit line to be edited.

3. Press F2 (Edit Table On). The

editing table appears in the lower half of the display.

Edit...

Limit

Low High

Edit Table

Off

H Limit Line (edited)

L Limit Line

F 3

F 1

F 2

GSP-830 User Manual

2b Deactivating

limit line table

3a. Add a limit line

point

Press F2 (Edit Table Off). The editing table disappears and the edited contents will be saved.

1. Make sure that the cursor is

pointing to the first empty frequency point. Use the Up/Down keys to move the cursor, if necessary. 10 points are available for each high and low limit line.

Edit Table

On Off

No. MHz dBm

1 2 3 4 5

F 2

3b. Delete a limit

line point

2. If necessary, move the cursor to

different frequency points using the Arrow keys.

3. Enter the frequency using the

Numerical and Unit keys. Range: 9kHz to 3GHz The value is displayed in MHz.

4. The cursor automatically moves

to the dBm side. Enter the gain in using the Numerical keys and dB or Enter key. Range: 130dBm to +20dBm

5. Continue the above steps for

the number of points required.

1. Move the cursor using the

Arrow keys.

2. Press F3 (Delete) to delete the

point (frequency and amplitude together).

GHz /

Sec

MHz / mSec

kHz /

Enter

Sec

BK SP

No. MHz dBm

1 2 3 4 5

Delete

F 3

LIMIT LINE

No. MHz dBm

1 2 3 4 5

98 100 102

3. To undo deletion, press F5

(Undelete).

3c. Delete the whole

limit line data

1. Press F4 (Delete All).

2. Press F1 (No) or F2 (Yes) to

confirm deletion. All 10 limit line points will be deleted at once.

3. Press F6 (Return) to go back to

the previous menu.

4. To undo deletion, press F5

(Undelete).

-40

-30

-40

No. MHz dBm

1 2 3 4 5

Undelete

Delete All..

Undelete

102

Yes

Return

-40

F 5

F 4

F 1

F 2

F 6

F 5

4. Switch upper/lower limit line

If necessary, press F1 (Limit) to start editing the other limit line. Repeat the above steps.

Limit

Low High

Example High Limit Line

Point No. Frequency (MHz) Amplitude (dBm)

1 98MHz 40dBm

2 100MHz 30dBm

3 102MHz 40dBm

Resulted line

F 1

GSP-830 User Manual

Run Pass/Fail test

This section assumes that the limit line is already defined.

Pass/Fail condition

Checks whether the entire waveform amplitude stays between the high limit and low limit lines.

1. Select condition

2. Run Pass/Fail test

Note

Checks whether the peak waveform amplitude stays between the high and low limit lines.

Checks whether the waveform valleys stay between the high and low limit lines.

1. Press the Limit Line key.

2. Press F5 (Pass/Fail)

repeatedly to select the

Limit Line

Pass/Fail

F 5

condition.

1. Press F4 (Pass/Fail On) to

activate the test.

Pass/Fail

Off

F 4

2. The test result appears at the

bottom of the display.

If the limit lines are not defined, the Pass/Fail test uses the highest or lowest display level as the limit line.

Save/copy/delete/rename limit line file

Background

Save/Copy

Delete

Rename

Limit line files can be saved, copied, deleted, or renamed using the file utility. Press the File key to access each function.

Press F1 (Copy). For detailed steps, see page115.

Press F2 (Delete). For detailed steps, see page118.

Press F3 (Rename). For detailed steps, see page120.

File

Copy...

Delete...

Rename...

F 1

F 2

F 3

BANDWIDTH

The BW (BandWidth) feature configures how narrow the GSP-830 can sort out different signal peaks (resolution), and how fast the display can be updated (sweep time). Averaging the waveform is also available for smoothing noise level. The resolution, sweep time, and averaging are in a trade-off relationship, so configuration should be done with care.

RBW/VBW

Sweep Time

Average

Reset

Select RBW (Resolution B

Select VBW (Video BandWidth) .............................98

RBW/VBW Auto Mode Contents ............................99

Set Sweep time

Average Waveform................................................ 101

Reset RBW/VBW/sweep time to auto

.....................................................101

andWidth)......................96

...................102

GSP-830 User Manual

Select RBW (Resolution BandWidth)

Background

RBW (Resolution Bandwidth) defines the width of the IF (intermediate frequency) filter that is used to separate signal peaks from one another. The narrower the RBW, the greater the capability to separate signals at close frequencies. But it also makes the sweep time longer under specific frequency span (the display is updated less frequently). See page99 for suitable RBW selection.

Panel operation

1. Press the BW key.

2. Press F1 (RBW) to select Auto

or Manual.

3. When Man (manual) is selected,

use the Arrow keys or Scroll knob to select the RBW. The

RBW

Auto

Man

RBW: 30kHz

F 1

selected RBW appears in the command window.

Mode Auto

RBW is automatically selected. See page99 for the setting.

Manual

RBW is manually selected. The BW icon appears at the bottom of the display.

Range

See page99 for RBW reference setting according to the frequency span.

RBW Recommended span Standard/ Optional

300Hz

3kHz

9kHz

10kHz

30kHz

Span<30kHz Optional (300Hz

Span<300kHz Standard

300kHzSpan<600kHz Optional (EMI

300kHzSpan<1MHz Optional (10k/

300kHzSpan<6MHz Standard

RBW)

Filter - page146)

100kHz RBW)

BANDWIDTH

100kHz

120kHz

300kHz

4MHz

Check RBW installation status

1. Press the System key.

2. Press F6 (More).

3. Press F4 (System Config On) to

6MHzSpan<20MHz Optional

6MHzSpan<19MHz Optional (EMI

6MHzSpan<60MHz Standard

60MHzSpan Standard

show the system configuration in the display.

(10k/100kHz RBW)

Filter – page146)

System

More...

System Config

On Off

F 6

F 4

Note

Optional Items

4. Check the optional items

corner and see the RBW installation status (checkmark – installed, blank – not installed)

Installed

Not installed

5. Press F4 (System Config Off)

to close the system

System Config

On Off

F 4

configuration.

9k/120kHz RBW (EMI Filter) and 10k/100kHz RBW are exclusive; cannot be installed together. For installing a new optional RBW, contact the service center.

GSP-830 User Manual

Select VBW (Video BandWidth)

Background

VBW (Video Bandwidth) defines the smoothness of the trace on the display. Combined with RBW, VBW defines the ability to sort out target signal from surrounding noise or adjacent peaks. See page99 for suitable VBW selection.

Panel operation

1. Press the BW key.

2. Press F2 (VBW) to select Auto

or Manual.

3. When Man (manual) is selected,

use the Arrow keys or Scroll knob to select the VBW. The selected VBW appears in the command window.

Mode Auto

VBW is automatically selected. See page99 for setting.

Manual

VBW is manually selected. The VBW icon appears at the bottom of the

Range

10Hz to 1MHz in 1-3 steps

display.

In Auto mode, VBW is automatically selected in combination with RBW. See page99 for the settings. Use

uto mode settings for reference when manually

the A selecting the VBW.

VBW

Man

Auto

VBW: 1kHz

F 2

Note

The GSP-830 automatically changes the VBW according to RBW selection.

BANDWIDTH

RBW/VBW Auto Mode Contents

Background

• The following applies when selecting Auto mode for

RBW and VBW setting. Use them as a reference when manually selecting RBW and VBW.

• The RBW/VBW range differs according to system

configuration, especially the optional items.

Check the RBW installation status

1. Press the System key.

2. Press F6 (More).

3. Press F4 (System Config On) to

turn on the system configuration window.

System

More...

System Config

On Off

F 6

F 4

Optional Items

4. Press F4 (System Config Off) to

close the system configuration.

System Config

On Off

F 4

Optional item Install Icon Standard

configuration

EMI Filter(9k/120k RBW) No

300Hz RBW No

10k/100kHz RBW No

(Logarithmic scale, unit in Hz)

VBW RBW

Span

10k

10k 300k

30k 4M

300k 6M 60M 3G

100k

300k

GSP-830 User Manual

Standard + 9k/120kHz RBW configuration

10kHz/100kHz RBW No

Standard + 300/9k/120kHz RBW configuration

10kHz/100kHz RBW No

Optional item Install Icon

EMI Filter (9k/120k RBW) Yes

300Hz RBW No

(Logarithmic scale, unit in Hz)

VBW RBW

Span

0 19M

10k

10k 300k

10k 30k 100k

30k3k

9k 4M

300k 600k 6M 60M 3G

120k 300k

Optional item Install Icon

EMI Filter (9k/120k RBW) Yes

300Hz RBW Yes

(Logarithmic scale, unit in Hz)

VBW RBW

10k 10k 300k

3k 9k 4M

10k 30k 100k

30k300

120k 300k

Span

Standard + 10k/100kHz RBW

0 19M

Optional item Install Icon

EMI Filter (9k/120k RBW) No

30k

configuration

300Hz RBW No

10kHz/100kHz RBW Yes

Standard + 300/10k/100kHz RBW configuration

(Logarithmic scale, unit in Hz)

VBW RBW

Span

0 20M

10k

Optional item Install Icon

EMI Filter (9k/120k RBW) No

300Hz RBW Yes

10kHz/100kHz RBW Yes

(Logarithmic scale, unit in Hz)

VBW RBW

300

300k 600k 6M 60M

10k 300k

10k 30k 100k

30k3k

10k 4M

300k 1M 6M 60M

10k

10k 300k

10k 4M

100k 300k

10k 30k 100k

100k 300k

30k

100

Span

0 20M

30k

300k 1M 6M 60M

GW Instek GSP-830 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety Symbols

Safety Guidelines

Power cord for the United Kingdom

GSP-830 Characteristics

Package Contents

Front Panel Overview

Rear Panel Overview

Display Overview

Status Icon overview

Tilt Stand & Power Up

Tilt stand

Power Up

Last Stored Settings

Error Check

Functionality Check

Operation Shortcuts

Power-on screen

Frequency and Span

Amplitude

Autoset

Marker

Peak Search

Trace

Power Measurement

Limit Line

Bandwidth

Trigger

Display

File

Preset

System

Option

Sequence

Menu Tree

Power-on screen

Frequency, Span, Autoset, Amplitude(1 of 2)

Amplitude (2 of 2), Marker

Peak Search, Trace

Measurement, Limit Line

BW, Trigger, Display

File (1 of 2)

File (2 of 2)

Preset

System

Option, Sequence

Preset Contents

View Signal (Center and Span)

Set frequency adjustment step

Set center frequency

Set frequency span

View Signal (Start and Stop)

Set frequency adjustment Step

Set start frequency

Set stop frequency

Full/Zero Span

Display full frequency span (3GHz)

Display zero span (time domain)

Recall the Last Span Setting

Set Vertical Scale

Set reference amplitude

Select amplitude scale

Select amplitude unit

Set external offset level

Amplitude Correction

Overview

Correct amplitude step by step

Delete entire correction set data

Recall existing correction set

Save/copy/delete/rename correction file

Use Pre-Amplifier (Optional)

Set Input Impedance

Select input impedance (50Ω/75Ω)

Set impedance offset (75Ω only)

How Autoset Works

Run Autoset

Limit vertical search range