YOKOGAWA VB8300 User manual

User’s
Manual
Yokogawa Electric Corporation
VB8300
Baseband Signal Generator
IM 703155-01E
1st Edition

Product Registration
Thank you for purchasing YOKOGAWA products.
YOKOGAWA provides registered users with a variety of information and
services.
Please allow us to serve you best by completing the product registration
form accessible from our homepage.
http://www.yokogawa.com/tm/
PIM 103-01E

i
IM 703155-01E
1st Edition : August 2004 (YK)
All Rights Reserved, Copyright © 2004 Yokogawa Electric Corporation
Thank you for purchasing the VB8300 Baseband Signal Generator.
This user’s manual contains useful information about the instrument’s functions and
operating procedures and lists the handling precautions of the VB8300. To ensure
correct use, please read this manual thoroughly before beginning operation. After
reading the manual, keep it in a convenient location for quick reference whenever a
question arises during operation.
Three manuals, including this one, are provided as manuals for the VB8300. Please
read all of them.
Manual Title Manual No. Description
VB8300 Baseband Signal IM 703155-01E This manual. Explains all functions and
Generator User’s Manual procedures of the VB8300 excluding the
communication functions.
VB8300 Baseband Signal IM 703155-17E Explains the communication functions for
Generator Communication controlling the VB8300 using communication
Interface User’s Manual commands.
VB8300 File Conversion IM 703155-61E Explains how to use the software utility that
Utility Software User’s creates waveform data or converts files into
Manual data that the VB8300 can use.
Note
•The contents of this manual are subject to change without prior notice as a result of
continuing improvements to the instrument’s performance and functions. The figures
given in this manual may differ from those that actually appear on your screen.
•Every effort has been made in the preparation of this manual to ensure the accuracy
of its contents. However, should you have any questions or find any errors, please
contact your nearest YOKOGAWA dealer as listed on the back cover of this manual.
•Copying or reproducing all or any part of the contents of this manual without the
permission of Yokogawa Electric Corporation is strictly prohibited.
•This product includes open source software. For the procedure of obtaining the
source code, contact your nearest YOKOGAWA dealer.
Trademarks
•Microsoft, Internet Explorer, MS-DOS, Windows, Windows NT, and Windows XP are
either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
•Linux is either a registered trademark or trademark of Linus Torvalds in the United
States and/or other countries.
• Adobe, Acrobat, and Acrobat Reader are trademarks or registered trademarks of
Adobe Systems Incorporated.
•CompactFlash and CF are registered trademarks of SanDisk Corporation.
•For purposes of this manual, the TM and symbols do not accompany their
respective trademark names or registered trademark names.
•Other company and product names are trademarks or registered trademarks of their
respective companies.
Revisions
•1st edition: August, 2004

ii IM 703155-01E
Checking the Contents of the Package
Unpack the box and check the contents before operating the instrument. If some of the
contents are not correct or missing or if there is physical damage, contact the dealer
from which you purchased them.
VB8300
Check that the model name and suffix code given on the name plate on the rear panel
match those on your order.
MODEL
SUFFIX
NO.
Made in Japan
MODEL and SUFFIX Codes
MODEL/Item SUFFIX Specifications
703155 100-120/200-240 VAC, automatic switching between 100-V/200-V
systems
Memory length/number of output terminals
-0642 64-Mpoint, 2 channels (1 output terminal set, differential output)
-0644 64-Mpoint, 4 channels (2 output terminal sets, differential output)
-0648 64-Mpoint, 8 channels (4 output terminal sets, single-ended output)
-1282 128-Mpoint, 2 channels (1 output terminal set, differential output)
-1284 128-Mpoint, 4 channels (2 output terminal sets, differential output)
-1288 128-Mpoint, 8 channels (4 output terminal sets, single-ended
output)
Power cord -D UL/CSA Standard power cord (Part No.: A1006WD) [Maximum
rated voltage: 125 V; Maximum rated current: 7 A]
-F VDE Standard Power Cord (Part No.: A1009WD) [Maximum rated
voltage: 250 V; Maximum rated current: 10 A]
-Q BS Standard Power Cord (Part No.: A1054WD) [Maximum rated
voltage: 250 V; Maximum rated current: 10 A]
-R AS Standard Power Cord (Part No.: A1024WD) [Maximum rated
voltage: 250 V; Maximum rated current: 10 A]
-H GB Standard Power Cord (Part No.: A1064WD) [Maximum rated
voltage: 250 V; Maximum rated current: 10 A]
Options /D2 2-channel digital output*
/D4 4-channel digital output*
/D8 8-channel digital output*
/AT Analog summing output and sequence trigger
*Select /D2 to /D8 according to the number of output terminals at the time of purchase.
Suffix Code Example
128-Mpoint memory length, 8 output terminals (single-ended output), UL/CSA standard power
cord, 8-channel digital output, analog summing output, and sequence trigger function
→703155-1288-D/D8/AT
No. (Instrument Number)
When contacting the dealer from which you purchased the instrument, please give
them the instrument number.

iii
IM 703155-01E
Standard Accessories
The standard accessories below are supplied with the instrument.
1 piece
1 piece
1 piece
Rubber feet (4 pieces)
(A9088ZM 2 sets)
Power fuse
A1114EF
(a spare, attached to
the fuse holder)
IQ digital output cable
A1388WL
Suffix Code /D2: 1 piece
/D4: 2 pieces
/D8: 4 pieces
VB8300 Baseband Signal Generator
User's Manual
(This manual, IM703155-01E)
VB8300 Baseband Signal Generator
Communication Interface User's Manual
(IM703155-17E)
VB8300 File Conversion Utility Software
User's Manual (IM703155-61E)
VB8300 File Conversion Utility Software
PC Version Install Disk
B8013UT
(1 CD-R)
UL/CSA Standard
A1006WD
VDE Standard
A1009WD
BS Standard
A1054WD
AS Standard
A1024WD
D F Q R
Power Cord (one of the following power cords
is supplied according to the instrument’s suffix codes)
GB Standard
A1064WD
H
Optional Accessories (Sold Separately)
The optional accessories below are available for purchase separately.
BNC cable
366924 (1 m)
366925 (2 m)
50-Ωterminator
700976
Software
Software Utilities for Model Supported Modulation Function and Description
Wireless Communications Types
Digital Modulation Signal 703081 BPSK, QPSK, OQPSK, Modulation signal
Generation Software π/4QPSK, 16QAM, 64QAM, generation for single
128QAM, 256QAM carrier
OFDM Generation 703082 IEEE802.11a-compliant OFDM Modulation signal
Utility Software generation
CCK Generation 703084 IEEE802.11b-compliant CCK Modulation signal
Utility Software generation and multi-pass
simulation
W-CDMA Signal Generation 703184 3GPP Release 5 HSDPA frame generation,
Utility for 3GPP Rel 5 generation of a multiplexed
waveform consisting of up
to 256 waveforms
Multi-path Utilities 703087 Multi-path moving propagation, birth-death propagation
Spare Parts (Sold Separately)
The spare parts below are available for purchase separately.
Part Name Part Number Q’ty Note
Power fuse A1114EF 2 250 V, 5 A, time lag
Checking the Contents of the Package

iv IM 703155-01E
Safety Precautions
This instrument is an IEC safety class I instrument (provided with a terminal for
protective earth grounding).
The general safety precautions described herein must be observed during all phases of
operation. If the instrument is used in a manner not specified in this manual, the
protection provided by the instrument may be impaired. Yokogawa Electric Corporation
assumes no liability for the customer’s failure to comply with these requirements.
The following symbols are used on this instrument.
Danger. Refer to the user’s manual. This symbol appears on dangerous
locations on the instrument which require special instructions for proper handling
or use. The same symbol appears in the corresponding place in the manual to
identify those instructions.
Alternating current
ON (power)
OFF (power)
Standby
ON (power) state
OFF (power) state

v
IM 703155-01E
Be sure to observe with the precautions below. Not complying might result in injury
or death.
WARNING
Use the Correct Power Supply
Before connecting the power cord, ensure that the source voltage matches the
rated supply voltage of the instrument and that it is within the maximum rated
voltage of the provided power cord.
Use the Correct Power Cord and Plug
To prevent the possibility of electric shock or fire, be sure to use the power cord
supplied by YOKOGAWA. The main power plug must be plugged into an outlet
with a protective earth terminal. Do not disable this protection by using an
extension cord without protective earth grounding.
Connect the Protective Grounding Terminal
Be sure to connect the protective earth to prevent electric shock before turning
ON the power. The power cord that comes with the instrument is a three-prong
type power cord. Connect the power cord to a properly grounded three-prong
outlet.
Do Not Impair the Protective Grounding
Never cut off the internal or external protective earth wire or disconnect the
wiring of the protective earth terminal. Doing so poses a potential shock hazard.
Do Not Operate with Defective Protective Grounding or Fuse
Do not operate the instrument if the protective earth or fuse might be defective.
Make sure to check them before operation.
Do Not Operate in an Explosive Atmosphere
Do not operate the instrument in the presence of flammable liquids or vapors.
Operation in such environments constitutes a safety hazard.
Do Not Remove Covers
The cover should be removed by YOKOGAWA’s qualified personnel only.
Opening the cover is dangerous, because some areas inside the instrument
have high voltages.
Ground the Instrument before Making External Connections
Securely connect the protective grounding before connecting to the item under
measurement or to an external control unit. If you are going to touch the circuit,
make sure to turn OFF the circuit and check that no voltage is present.
To prevent the possibility of electric shock or an accident, connect the ground of
the probe and input connector to the ground of the item being measured.
Safety Precautions

vi IM 703155-01E
Conventions Used in This Manual
Safety Markings
The following markings are used in this manual.
Improper handling or use can lead to injury to the user or damage to
the instrument. This symbol appears on the instrument to indicate
that the user must refer to the user’s manual for special instructions.
The same symbol appears in the corresponding place in the user’s
manual to identify those instructions. In the manual, the symbol is
used in conjunction with the word “WARNING” or “CAUTION.”
WARNING Calls attention to actions or conditions that could cause serious or
fatal injury to the user, and precautions that can be taken to prevent
such occurrences.
CAUTION Calls attentions to actions or conditions that could cause light injury
to the user or damage to the instrument or user’s data, and
precautions that can be taken to prevent such occurrences.
Note
Calls attention to information that is important for proper operation
of the instrument.
Subheadings
On pages that describe the operating procedures in chapters 3 through 15, the
following symbols, displayed characters, and terminology are used to distinguish the
procedures from their explanations.
Procedure Follow the numbered steps. All procedures are written with
inexperienced users in mind; experienced users may not need to
carry out all the steps.
Explanation This subsection describes the setup parameters and the limitations
on the procedures. It may not give a detailed explanation of the
function. For a detailed explanation of the function, see chapter 2.
Displayed Characters and Terminology Used in the Procedural Explanations
Panel Keys and Soft keys
Bold characters used in the procedural explanations indicate characters that are marked on
the panel keys or the characters of the soft keys or menus displayed on the screen.
SHIFT + Panel Key
SHIFT+key means you will press the SHIFT key to turn ON the green indicator that is located
above the SHIFT key and then press the panel key. The setup menu marked in purple above
the panel key that you pressed appears on the screen.
Rotary & SELECT, Numeric Key & ENTER
Indicates procedures for selecting/setting items and entering values, character strings, and
units. For details on the procedure, see section 3.7 or 3.8.
Units
kDenotes 1000. Example: 12 kg, 100 kHz
KDenotes 1024. Example: 459 KB (file data size)

vii
IM 703155-01E
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5
6
7
8
9
10
11
12
13
14
15
Index
App
Contents
Checking the Contents of the Package ........................................................................................... ii
Safety Precautions .........................................................................................................................iv
Conventions Used in This Manual ..................................................................................................vi
Chapter 1 Names and Functions of Parts
1.1 Front Panel, Rear Panel, and Top Panel .......................................................................... 1-1
1.2 Setup Menu Display/Execution Key ................................................................................. 1-3
Chapter 2 Functional Description
2.1 Flow of Operation ............................................................................................................. 2-1
2.2 System Configuration and Block Diagram ....................................................................... 2-2
2.3 Principles of Waveform Generation/Output ...................................................................... 2-5
2.4 Generation/Output Conditions ......................................................................................... 2-7
2.5 Outputting Waveforms and Editing Sequences .............................................................. 2-11
2.6 Checking the Output Waveform ..................................................................................... 2-15
2.7 Other Functions ............................................................................................................. 2-16
Chapter 3 Instrument Preparation and Common Operations
3.1 Precautions Concerning the Use of the Instrument ......................................................... 3-1
3.2 Installing the Instrument ................................................................................................... 3-3
3.3 Connecting the Power Supply .......................................................................................... 3-5
3.4 Turning the Power Switch ON/OFF .................................................................................. 3-6
3.5 Connecting the Waveform Output Cables ........................................................................ 3-8
3.6 Setting the Date, Time, and Time Zone............................................................................ 3-9
3.7 Displaying the Setup Menu and Setup Procedure Basics.............................................. 3-11
3.8 Entering Values, Units, and Character Strings Using the Numeric Keys ....................... 3-14
Chapter 4 Loading Waveform Data to the Waveform Memory
4.1 Loading Waveform Data Using the Network .................................................................... 4-1
4.2 Uploading Waveform Data from the CF Card or USB Memory ........................................ 4-4
Chapter 5 Setting the Output Waveform
5.1 Selecting the 10-MHz Reference Signal .......................................................................... 5-1
5.2 Selecting the Clock Signal ............................................................................................... 5-2
5.3 Setting the Clock Frequency ............................................................................................ 5-3
5.4 Setting the Gain, Phase, IQ Gain Ratio, Quadrature Offset, Voltage Offset, Low-pass Filter,
and Noise ......................................................................................................................... 5-4
5.5 Setting the Output Shift .................................................................................................... 5-9
5.6 Selecting Analog or Digital Output (Option) ................................................................... 5-10
Chapter 6 Outputting Waveforms
6.1 Setting the Start Trigger ................................................................................................... 6-1
6.2 Executing Waveform Output ............................................................................................. 6-2
6.3 Synchronized Operation ................................................................................................... 6-3

viii IM 703155-01E
Chapter 7 Editing Sequences
7.1 Loading the Sequence List .............................................................................................. 7-1
7.2 Sequence Editing and Loading Waveform Data to the Waveform Memory ..................... 7-3
7.3 Saving the Sequence List .............................................................................................. 7-13
Chapter 8 Checking the Output Waveform
8.1 Waveform Display ............................................................................................................ 8-1
8.2 Spectrum Display .............................................................................................................8-8
8.3 CCDF Display ................................................................................................................ 8-15
8.4 Constellation Display...................................................................................................... 8-21
8.5 Eye Display .................................................................................................................... 8-27
8.6 Selecting Display Interpolation and Graticule/Displaying Waveform Labels and Scale
Values ............................................................................................................................ 8-33
Chapter 9 Printing Screen Images
9.1 Printing on a USB Printer ................................................................................................. 9-1
9.2 Printing on a Network Printer ........................................................................................... 9-4
Chapter 10 Saving and Loading Data
10.1 Inserting and Removing the CF Card or USB Memory .................................................. 10-1
10.2 Saving/Loading Setup Data ........................................................................................... 10-4
10.3 Loading Waveform Data ................................................................................................. 10-8
10.4 Saving and Loading Sequence Lists ............................................................................ 10-10
10.5 Saving the Screen Image Data .................................................................................... 10-14
10.6 Deleting Files and Directories ...................................................................................... 10-17
10.7 Copying Files and Directories ...................................................................................... 10-19
10.8 Renaming Files and Directories and Creating Directories ........................................... 10-22
Chapter 11 Configuring the Network
11.1 Connecting to the Network ............................................................................................. 11-1
11.2 Setting TCP/IP ............................................................................................................... 11-3
11.3 Settings for Printing Screen Images on a Network Printer ............................................. 11-8
11.4 Setting the File Server Function................................................................................... 11-10
Chapter 12 Other Operations
12.1 Calibration ...................................................................................................................... 12-1
12.2 Saving and Applying Preset Settings ............................................................................. 12-2
12.3 Initializing the Settings ...................................................................................................12-3
12.4 Turning the Display (LCD Backlight) ON/OFF ................................................................ 12-4
12.5 Turning Key Lock ON/OFF ............................................................................................. 12-5
12.6 Display the Error Log ..................................................................................................... 12-6
12.7 Updating the System ...................................................................................................... 12-7
12.8 Registering/Deleting/Starting Software Applications ................................................... 12-10
Contents

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1
4
5
6
7
8
9
10
11
12
13
14
15
Index
App
Chapter 13 Rear Panel Auxiliary Input/Output
13.1 External Start Trigger Input and Trigger Ready Output .................................................. 13-1
13.2 External Clock Input/Output ........................................................................................... 13-3
13.3 10-MHz Reference Signal Input/Output ......................................................................... 13-5
13.4 Event Output .................................................................................................................. 13-7
13.5 IQ Digital Output (Option) .............................................................................................. 13-8
13.6 Video Signal Output ..................................................................................................... 13-11
13.7 Sequence Trigger-External Trigger Source and External Sampling Clock (Option) ..... 13-13
13.8 Analog Sum-Sum Signal Output and External Signal Input (Option) ........................... 13-17
Chapter 14 Troubleshooting, Maintenance, and Inspection
14.1 Troubleshooting .............................................................................................................. 14-1
14.2 Messages and Corrective Actions.................................................................................. 14-2
14.3 Performing a Self-Test .................................................................................................... 14-6
14.4 Checking the System Status .......................................................................................... 14-9
14.5 Replacing the Power Fuse ........................................................................................... 14-10
14.6 Recommended Replacement Parts ............................................................................. 14-11
Chapter 15 Specifications
15.1 Performance ................................................................................................................... 15-1
15.2 Functions ....................................................................................................................... 15-2
15.3 Auxiliary I/O .................................................................................................................... 15-3
15.4 Display ........................................................................................................................... 15-4
15.5 Storage .......................................................................................................................... 15-4
15.6 Printer Interface ............................................................................................................. 15-4
15.7 Communication Interface (Ethernet, Serial) ................................................................... 15-5
15.8 Video Signal Output Section .......................................................................................... 15-5
15.9 General Specifications ................................................................................................... 15-6
15.10 External Dimensions ...................................................................................................... 15-7
Appendix App-1
Appendix 1 Default Settings
Appendix 2 Waveform Data Format .......................................................................................App-4
Appendix 3 Sequence List Data Format ................................................................................. App-8
Index
Contents

1-1
IM 703155-01E
1
Names and Functions of Parts
1.1 Front Panel, Rear Panel, and Top Panel
Front Panel
Rotary knob
Used to set values, move the marker, and select items in setup operations.
RESET key
Resets the value entered using the rotary knob to default.
SELECT key
Enters (Confirms) the item or value set using the rotary knob.
< > Key
Used to move between digits when entering a value using the rotary knob and when
changing a value or moving the marker.
Standby power switch (Section 3.4)
Compact Flash card (CF card) slot
Used when saving data to a CF card.
(Section 9.1)
ESC key
Used to clear a setup menu and
dialog box.
Soft keys
Used to select items on
the setup menu that
appears on the screen.
Waveform output terminals
Terminals where waveform output cables are connected. The
terminal configuration varies depending on the model. (Section 3.5)
Setup menu display/Execution key
Keys that are pressed first when entering a setting or
executing an operation. Displays various setup menus. For
execution keys, the operation of the pressed key is executed.
(Section 1.2)
RESET
kHz/mV
MHz/V
BACK
SPACE
ENTERSPACE
DISPLAY
ON/OFF
KEY
LOCK
INITIALIZE
BASEBAND SIGNAL GENERATOR
VB8300
POWER
ESC
ESC
SELECT
HDD
OPTION
PRINT
MISC
FILE
CLOCK
MANUAL
TRIG
WAVE SE Q TRI GDISP
OUT 1 OUT 2 OUT 3 OUT 4
APPLI START/STOP
REMOTE
UNLOCK
OFF
PRESET
ON/OFF
OUTPUT
OUT 1 50 OUT 2 50 OUT 3 50 OUT 4 50
QIQIQIQI
789
456
1
0
23
.+ / -
A B C@ . / : D E F
J K LG H I M N O
T U VP Q R S W XY Z
SHIFT
LCD
Numerical keys
Used to enter a value, unit, or character string. (Section 3.8)
SHIFT key
The keys enter the shifted state when you press the SHIFT
key and illuminate the green indicator located above the
SHIFT key. The setup menu marked in purple above the
panel keys can be selected. In addition, the purple characters
above the numeric keys can be selected.
Rear Panel
Serial (RS-232) connector
Used when communicating via the serial interface. For a
description of communication using commands, see the
Communication Interface User's Manual (IM703155-17E).
Ethernet port (Section 11.1)
IO digital output connector (option)
Connect a dedicated cable provided when outputting
waveforms as digital signals. (Section 13.5)
Event output terminal (Section 13.4)
Video signal output connector (Section 13.6)
USB port
Used when connecting a USB printer or USB memory.
(Sections 2.7, 9.1, and 10.1)
Outlet holes (Section 3.2)
Power connector (Section 3.3)
Power fuse (Section 14.5)
Main power switch (Section 3.4)
External start trigger input/trigger ready output terminal (Section 13.1)
10-MHz reference signal input/10-MHz reference signal output terminal (Section 13.3)
External clock input/output terminal (Section 13.2)
Analog sum external signal input
terminal (option)
When summing an external signal
to the signal output from the sum
signal output terminal, apply the
external signal to this terminal.
Analog sum sum signal
output terminal (option)
Outputs a signal of the sum of signals
output from various waveform output
terminals on the front panel. (Section 13.8)
Sequence trigger external trigger source
input/output terminal (option)
External sampling clock input/output terminal (option)
Used to input an external trigger source or sampling clock of the
sequence trigger or output the signals. (Sections 7.2 and 13.7)
Chapter 1 Names and Functions of Parts

1-2 IM 703155-01E
Top Panel
Handles
Inlet holes (Section 3.2)
(There are also inlet holes on the bottom panel.)
Outlet holes (Section 3.2)
1.1 Front Panel, Rear Panel, and Top Panel

1-3
IM 703155-01E
1
Names and Functions of Parts
1.2 Setup Menu Display/Execution Key
Setting Output Conditions
CLOCK Key (Sections 5.1 to 5.3)
Displays a menu use to set the 10-MHz reference signal, clock signal, and clock
frequency.
WAVE Key (Chapter 4, sections 5.4 to 5.6)
•Displays a menu used to load waveform data and set the gain, phase, IQ gain ratio,
quadrature offset, voltage offset, low-pass filter, noise, and output shift.
•Displays a selection menu used to set the waveform output to analog or digital signal.
SEQ Key (Chapter 7)
Displays a menu used to edit, save, and load the sequence list that specifies the order of
waveform data generation.
TRIG Key (Sections 6.1 and 7.2)
Displays a menu used to set the trigger or sequence trigger (option) that starts signal
generation.
OUT1 to OUT4 Keys (Sections 5.4 to 5.6, chapters 7 and 8)
Used to select the output terminal set (OUT1 to OUT4) on the screen that appears when
the WAVE key or SEQ key is pressed.
Executing Signal Output
START/STOP Key (Section 6.2)
Starts/stops signal generation.
ON/OFF Key (Section 6.2)
Controls the signal output ON/OFF. The signal output must be turned ON using this key
for the signal to be output when signal generation is started.
Checking the Output Waveform
DISP Key (Chapter 8)
• Displays a menu used to set the waveform, spectrum, CCDF, constellation, and eye
displays.
•Displays a menu used to move the markers on the displayed waveform and set the
auxiliary display (display interpolation, graticule, waveform label, and scale values).
Additional Functions
APPLI Key
Starts a software application that is registered in the VB8300.
HDD
OPTION
PRINT
MISC
FILE
CLOCK
MANUAL
TRIG
WAVE SEQ TRIGDISP
OUT 1 OUT 2 OUT 3 OUT 4
START/STOP
ON/OFF
OUTPU
T
HDD
OPTION
PRINT
MISC
FILE
CLOCK
MANUAL
TRIG
WAVE SEQ TRIGDISP
OUT 1 OUT 2 OUT 3 OUT 4
START/STOP
APPLI

1-4 IM 703155-01E
Saving/Loading Data, Printing Screen Images, Setting the Network, and Other Operations
FILE Key (Chapter 10)
•Displays a menu used to save various types of data to the internal hard disk, CF card,
or USB memory and load the data to the VB8300.
•Displays a menu used to copy/delete files, rename files and directories, and create
directories.
OPTION Key (Section 13.8)
Displays a menu used to set the functions of options. For models with the /AT option, a
menu used to set the analog sum is displayed.
MISC Key (Sections 3.6, chapters 9 and 11, sections 12.1, 12.6, 14.3, 14.4,
Communication Interface User’s Manual IM703155-17E )
•Displays a menu used to set the date/time/time zone, set screen image printing, set
the network, and set the calibration, self-test, and remote control.
• Displays error logs and the VB8300 system status (firmware and the presence/
absence of options).
SHIFT + MISC (PRINT) Key (Chapter 9)
Prints screen images and saves screen image data.
PRESET Key (Section 12.2)
With a single key operation, sets the VB8300 back to the setup saved as preset data.
SHIFT + PRESET (INITIALIZE) Key (Section 12.3)
Resets the setup configured using keys to factory default.
KEYLOCK Key (Section 12.5)
Disables the setup operation using front panel keys (locks the keys) excluding the
operation of turning the power ON/OFF and turning key lock OFF.
SHIFT + KEYLOCK (UNLOCK) Key (Section 12.5)
Clears the key lock.
DISPLAY ON/OFF Key (Section 12.4)
Turns the display OFF by turning the backlight OFF when the display does not have to
be turned ON.
HDD
OPTION
PRINT
MISC
FILE
CLOCK
MANUAL
TRIG
WAVE SEQ TRIGDISP
OUT 1 OUT 2 OUT 3 OUT 4
DISPLAY
ON/OFF
KEY
LOCK
INITIALIZE
REMOT
E
UNLOC
K
OFF
PRESET
1.2 Setup Menu Display/Execution Key

2-1
IM 703155-01E
Functional Description
2
2.1 Flow of Operation
The figure below is provided to familiarize the first-time user with the general flow of the
VB8300 operation. For a description of each item, see the relevant section or chapter.
Preparing Waveform Generation
Preparing Waveform Generation
Setting Output Conditions
Setting Output Conditions
Checking the Output Waveform
Checking the Output Waveform
Install the instrument
Connect the power supply and
turn the power ON/OFF
Connect the waveform output cables
Load the waveform data
• Reference signal
• Clock signal
• Gain, phase, offset, etc.
• Edit sequence (as necessary)
Start trigger
• Waveform/Spectrum display
• CCDF/Constellation/Eye display
Printing and Saving Data
Printing and Saving Data
• Print screen images
• Save various types of data
Section 3.2
Sections 3.3 and 3.4
Section 3.5
Chapter 4
Section 5.1
Sections 5.2 and 5.3
Sections 5.4 to 5.6
Chapter 7
Section 6.1
Sections 8.1 and 8.2
Sections 8.3 to 8.5
Chapter 9
Chapter 10
Executing Signal Output
Executing Signal Output
• Execute waveform output
• Synchronized operation
Section 6.2
Section 6.3
Chapter 2 Functional Description

2-2 IM 703155-01E
2.2 System Configuration and Block Diagram
System Configuration
Waveform data
Setup data
VG6000 Synthesized Vector
Signal Generator
RF signal Circuit or device
under test
Baseband signal
Waveform data
generation and
data conversion
VB8300
CF card
USB memory
PC
Serial (RS-232)
(Control the VB8300 using
communication commands)
Network
(Upload waveform data,
control the VB8300 using
communication commands)
CF card
USB memory

2-3
IM 703155-01E
Functional Description
2
Block Diagram
10 MHz REF IN
10 MHz REF OUT
CLOCK IN
CLOCK OUT
START IN
READY OUT
Waveform
Memory
64 M/128 M
Points
DAC
Matrix Operation
LPF
6 M/30 M/
100 M/THRU
Gain/Phase/
Gain Ratio/Quadrature
Differential
Offset
Common
Offset
DAC DAC
DAC
DAC DAC
Differential
Offset
Common
Offset
EVENT OUT 0
EVENT OUT 1
IQ DIGITAL OUT
CFD ETHERNETCPU HDD USB SERIAL
(RS-232)
VIDEO
OUT
I
I
Q
Q
Sequence
Controller
AWGN
AWGN
LPF
6 M/30 M/
100 M/THRU
Tr i g ger Out
Tr igger In
Tr i g ger
Sampling
Clock
Sequence Trigger
Controller
Tr igger signal
OUT1-OUT4
SEQ Trigger
SMPLG
IN Differential
Offset
Common
Offset
DAC DAC
DAC DAC
Differential
Offset
Common
Offset
I
I
Q
Q
I,Q Signal
from OUT1-OUT4
/AT Option
To /AT Option block
ANALOG SUM
EXT IN
Q
I
TRIG IN
TRIG OUT
SMPLG
OUT
Control & Interface
Clock Generator
OUT3
OUT1
OUT2
OUT4
For a description of the signal flow in the block diagram, see the explanation on the next
page.
2.2 System Configuration and Block Diagram

2-4 IM 703155-01E
Signal Flow
•Preparing Waveform Data
1. Create waveform data on the VB8300 or on your PC.
2. The waveform data created on your PC is retrieved into the VB8300 internal
hard disk via a communication interface, CF card, or USB memory.
3. As necessary, convert the waveform data on the hard disk into a data format
that the VB8300 can use (RAW data, .raw extension) and load the data to the
waveform memory.
•Outputting Waveforms
The waveform memory stores waveform data of 14 bits ×2 (I and Q), 2-bit event data
(EVENT0 and EVENT1), and 2-bit sequence trigger signal (trigger and trigger
sampling clock).
When waveform output is started, waveform data is read at the clock cycle and
passed to the 2 ×2 digital matrix calculator (matrix operation) consisting of 4
multipliers and 2 adders.
The sequence controller controls the output sequence of the waveform data and the
output count according to the settings. The matrix calculator sets the gain, phase, IQ
gain ratio, and quadrature offset. Additive White Gaussian Noise (AWGN) is added to
the data output from the matrix calculator and passed to the D/A converter (DAC) as
well as output from the IQ DIGITAL OUT terminal.
The signal that is converted into analog signal by the D/A converter passes through a
low-pass filter (select 6 MHz, 30 MHz, 100 MHz, or Through) in which unneeded
frequency components are removed. Then, a differential offset voltage is added to
the signal. Next, the signal is converted to a differential signal by the differential
output amplifier, and common-mode offset voltage is added. The signal is then output
from each output terminal (I, I
_
, Q, and Q
_
).
The 2-bit event data is read from the waveform memory and output from the EVENT
OUT 0/1 terminal.
The 2-bit sequence trigger signal is selected and synchronized by the optional
sequence trigger controller and passed to the sequence controller of each output
terminal set.* The sequence controller controls the waveform data sequence and the
output count according to the trigger signal and settings.
The analog summing output option is a function that adds the I or Q signal of each
output terminal set or an arbitrary selected signal from the external input (ANALOG
SUM EXT IN) signal and outputs the signal from each output terminal (ANALOG SUM
I, I
_
, Q, and Q
_
). Differential offset or common-mode offset voltage can further be
added to the added signal.
*On models with single-ended outputs, four output terminal sets (OUT1 to OUT4) are
available. On models with differential output, one (OUT1) or two (OUT1 and OUT2) output
terminal sets are available.
2.2 System Configuration and Block Diagram

2-5
IM 703155-01E
Functional Description
2
2.3 Principles of Waveform Generation/Output
The VB8300 is a digital baseband signal generator. The VB8300 loads the waveform
data that you create to the waveform memory, converts the data into an analog signal
using a D/A converter, and outputs the resultant waveform. It can also output digital
signals without converting to analog signals.
I
Q
I
Q
OUT
IQ
Waveform data A
Waveform data B
Internal HD
VB8300
PC
CF card
USB memory
I
Q
Waveform memory Waveform memory
Waveform data A 1 Waveform data A
2 Waveform data B
128
The waveform data is transmitted (loaded)
from the internal hard disk, CF card, or
USB memory to the waveform memory in
order according to the sequence list. Then,
the data is output.
The selected waveform data is
transmitted (loaded) from the
internal hard disk, CF card, or
USB memory to the waveform
memory and then output.
Output a data sequence of multiple
waveforms (see section 2.5)
Output the data of a single
waveform (see section 2.5)
Output conditions
(see section 2.4)
Waveform output
(see section 2.5)
Create waveform data
on the VB8300 (see the
User's Manual
IM703155-61E for the
Function Waveform
Creation Utility Software
that comes standard
with the package)
Upload waveform data
from the CF card or
USB memory
Upload waveform data to the
internal hard disk (HD) using
the network
Create waveform data
Create waveform data on the waveform generation
software on the PC (for a description of how to generate
waveforms, see the user's manual for the respective
software application).