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SERIES
682XXB/683XXB
SYNTHESIZED SIGNAL GENERATORS
OPERATION MANUAL
490 JARVIS DRIVE P/N: 10370-10284
MORGAN HILL, CA 95037-2809 REVISION: H
PRINTED: AUGUST 1999
COPYRIGHT 1994 ANRITSU CO.
WARRANTY
The ANRITSU product(s) listed on the title page is (are) warranted against defects in materials and
workmanship for one year from the date of shipment.
ANRITSU's obligation covers repairing or replacing products which prove to be defective during the
warranty period. Buyers shall prepay transportation charges for equipment returned to ANRITSU
for warranty repairs. Obligation is limited to the original purchaser. ANRITSU is not liable for con-
sequential damages.
LIMITATION OF WARRANTY
The foregoing warranty does not apply to ANRITSU connectors that have failed due to normal wear.
Also, the warranty does not apply to defects resulting from improper or inadequate maintenance by
the Buyer, unauthorized modification or misuse, or operation outside of the environmental specifica-
tions of the product. No other warranty is expressed or implied, and the remedies provided herein
are the Buyer's sole and exclusive remedies.
TRADEMARK ACKNOWLEDGEMENTS
Adobe Acrobat is a registered trademark of Adobe Systems Incorporated.
NOTICE
ANRITSU Company has prepared this manual for use by ANRITSU Company personnel and cus-
tomers as a guide for the proper installation, operation and maintenance of ANRITSU Company
equipment and computer programs. The drawings, specifications, and information contained herein
are the property of ANRITSU Company, and any unauthorized use or disclosure of these drawings,
specifications, and information is prohibited; they shall not be reproduced, copied, or used in whole
or in part as the basis for manufacture or sale of the equipment or software programs without the
prior written consent of ANRITSU Company.
Safety Symbols
To prevent the risk of personal injury or loss related to equipment malfunction, ANRITSU Company uses the
following symbols to indicate safety-related information. For your own safety, please read the information
carefully BEFORE operating the equipment.
WARNING WARNING indicates a hazard. It calls attention to a procedure that
could result in personal injury or loss of life if not performed properly.
Do not proceed beyond a WARNING notice until the indicated condi-
tions are fully understood and met.
CAUTION CAUTION indicates a hazard. It calls attention to a procedure which,
if not performed properly, could result in damage to or destruction of a
component of the instrument. Do not proceed beyond a CAUTION note
until the indicated conditions are fully understood and met.
The instrument is marked with this symbol to indicate that it is neces-
sary for the user to refer to the instructions in the operation manual.
Indicates ground.
Indicates heavy weight equipment.
682XXB/683XXB OM Safety-1
For Safety
WARNING
When supplying power to this equipment, always use a
three-wire power cable connected to a three-wire power line
outlet. If power is supplied without grounding the equip-
ment in this manner, there is a risk of receiving a severe or
fatal electric shock.
WARNING
Before changing the fuse, always remove the power cord
from the power outlet. There is the risk of receiving a fatal
electric shock if the fuse is replaced with the power cord con-
nected.
Always use a new fuse of the type and rating specified by
the fuse markings on the rear panel of the instrument.
WARNING
There are no operator serviceable components inside. Refer
servicing of the instrument to qualified service technicians.
To prevent the risk of electrical shock or damage to preci-
sion components, do not remove the equipment covers.
WARNING
Use two or more people to lift and move this equipment, or
use an equipment cart. There is a risk of back injury, if this
equipment is lifted by one person.
Safety-2 682XXB/ 683XXB OM
Table of Contents
Chapter 1 - General Information
1-1 SCOPE OF MANUAL . . . . . . . . . . . . . . . . . 1-3
1-2 INTRODUCTION . . . . . . . . . . . . . . . . . . . 1-3
1-3 DESCRIPTION . . . . . . . . . . . . . . . . . . . . 1-3
1-4 IDENTIFICATION NUMBER . . . . . . . . . . . . 1-8
1-5 ELECTRONIC MANUAL . . . . . . . . . . . . . . . 1-8
1-6 RELATED MANUALS . . . . . . . . . . . . . . . . 1-8
GPIB Programming Manual . . . . . . . . . . . 1-8
SCPI Programming Manual . . . . . . . . . . . 1-8
Maintenance Manual . . . . . . . . . . . . . . 1-9
1-7 OPTIONS . . . . . . . . . . . . . . . . . . . . . . . 1-9
1-8 PERFORMANCE SPECIFICATIONS . . . . . . . 1-10
1-9 RECOMMENDED TEST EQUIPMENT . . . . . . 1-11
Chapter 2 - Installation
2-1 INTRODUCTION . . . . . . . . . . . . . . . . . . . 2-3
2-2 INITIAL INSPECTION . . . . . . . . . . . . . . . . 2-3
2-3 PREPARATION FOR USE . . . . . . . . . . . . . . 2-4
Power Requirements . . . . . . . . . . . . . . . 2-4
Line Voltage Selection . . . . . . . . . . . . . . 2-4
Power Connection . . . . . . . . . . . . . . . . 2-4
Standby Operation. . . . . . . . . . . . . . . . 2-5
Warmup Time . . . . . . . . . . . . . . . . . . 2-6
Operating Environment . . . . . . . . . . . . . 2-6
2-4 GPIB SETUP AND INTERCONNECTION . . . . . 2-7
Interface Connector . . . . . . . . . . . . . . . 2-7
Cable Length Restrictions . . . . . . . . . . . . 2-7
GPIB Interconnection . . . . . . . . . . . . . . 2-7
Setting the GPIB Address . . . . . . . . . . . . 2-7
Selecting the Line Terminator . . . . . . . . . . 2-9
Selecting the Interface Language. . . . . . . . . 2-9
2-5 RACK MOUNTING KIT INSTALLATION . . . . . 2-10
Preliminary . . . . . . . . . . . . . . . . . . 2-10
Procedure . . . . . . . . . . . . . . . . . . . 2-10
682XXB/683XXB OM i
Table of Contents (Continued)
2-6 PREPARATION FOR STORAGE/SHIPMENT . . . 2-13
Preparation for Storage . . . . . . . . . . . . . 2-13
Preparation for Shipment . . . . . . . . . . . . 2-13
Chapter 3 - Local (Front Panel) Operation
3-1 INTRODUCTION . . . . . . . . . . . . . . . . . . . 3-5
3-2 FRONT PANEL LAYOUT. . . . . . . . . . . . . . . 3-6
Line Key . . . . . . . . . . . . . . . . . . . . 3-6
Data Display Area . . . . . . . . . . . . . . . . 3-6
Data Entry Area . . . . . . . . . . . . . . . . . 3-7
RF Output Control Key . . . . . . . . . . . . . 3-7
Connectors . . . . . . . . . . . . . . . . . . . 3-7
3-3 DATA DISPLAY AREA . . . . . . . . . . . . . . . . 3-8
Menu Display Format . . . . . . . . . . . . . . 3-9
Menu Keys . . . . . . . . . . . . . . . . . . . 3-10
3-4 DATA ENTRY AREA. . . . . . . . . . . . . . . . . 3-12
3-5 INSTRUMENT START-UP . . . . . . . . . . . . . 3-14
Powering Up the 682XXB/683XXB . . . . . . . 3-14
Start-Up Display . . . . . . . . . . . . . . . . 3-14
Standby Operation . . . . . . . . . . . . . . . 3-14
Self-Testing the 682XXB/683XXB . . . . . . . . 3-15
Resetting to Default Parameters . . . . . . . . 3-15
3-6 ENTERING DATA . . . . . . . . . . . . . . . . . . 3-18
Opening the Parameter . . . . . . . . . . . . . 3-18
Editing the Current Value . . . . . . . . . . . 3-19
Entering a New Value . . . . . . . . . . . . . 3-20
3-7 CW FREQUENCY OPERATION . . . . . . . . . . 3-21
Selecting CW Mode . . . . . . . . . . . . . . . 3-21
Selecting a CW Frequency . . . . . . . . . . . 3-21
Selecting a Power Level. . . . . . . . . . . . . 3-23
CW Ramp . . . . . . . . . . . . . . . . . . . 3-24
3-8 SWEEP FREQUENCY OPERATION . . . . . . . . 3-25
Selecting Analog Sweep Mode. . . . . . . . . . 3-25
Setting the Analog Sweep Time . . . . . . . . . 3-26
Selecting a Sweep Trigger . . . . . . . . . . . 3-27
Selecting Step Sweep Mode . . . . . . . . . . . 3-28
Setting Step Size and Dwell Time . . . . . . . . 3-29
ii 682XXB/683XXB OM
Table of Contents (Continued)
Selecting Manual Sweep Mode . . . . . . . . . 3-30
Selecting a Sweep Range . . . . . . . . . . . . 3-31
Selecting a Power Level. . . . . . . . . . . . . 3-33
Frequency Markers . . . . . . . . . . . . . . . 3-34
Selecting Alternate Sweep Mode . . . . . . . . 3-36
3-9 FIXED POWER LEVEL OPERATION . . . . . . . 3-39
Selecting Fixed Power Level Mode . . . . . . . 3-39
Selecting a Power Level. . . . . . . . . . . . . 3-39
Level Offset . . . . . . . . . . . . . . . . . . 3-42
3-10 POWER LEVEL SWEEP OPERATION. . . . . . . 3-43
Selecting CW Power Sweep Mode . . . . . . . . 3-43
Setting CW Power Sweep Step Size and
Dwell Time . . . . . . . . . . . . . . . . . . 3-44
Selecting a CW Power Sweep Trigger . . . . . . 3-45
Selecting a Power Level Sweep Range. . . . . . 3-46
Selecting a Sweep Frequency/Step Power Mode . 3-48
Setting Power Level Step Size . . . . . . . . . 3-49
3-11 LEVELING OPERATIONS . . . . . . . . . . . . . 3-50
Selecting a Leveling Mode . . . . . . . . . . . 3-50
Attenuator Decoupling . . . . . . . . . . . . . 3-54
ALC Power Slope . . . . . . . . . . . . . . . . 3-55
User Cal (User Level Flatness Correction) . . . 3-57
3-12 SIGNAL MODULATION . . . . . . . . . . . . . . 3-63
Amplitude Modulation Operating Modes . . . . 3-63
Providing Amplitude Modulation . . . . . . . . 3-63
Frequency Modulation Operating Modes . . . . 3-68
Providing Frequency Modulation . . . . . . . . 3-68
Phase Modulation Operating Modes. . . . . . . 3-73
Providing Phase Modulation . . . . . . . . . . 3-73
Pulse Modulation Operating Modes . . . . . . . 3-77
Providing Pulse Modulation. . . . . . . . . . . 3-78
3-13 SYSTEM CONFIGURATION . . . . . . . . . . . . 3-86
Configuring the Front Panel . . . . . . . . . . 3-87
Configuring the Rear Panel . . . . . . . . . . . 3-88
Configuring the RF . . . . . . . . . . . . . . . 3-89
Configuring the GPIB . . . . . . . . . . . . . 3-91
Setting Increment Sizes . . . . . . . . . . . . 3-94
3-14 SAVING/RECALLING INSTRUMENT SETUPS . 3-95
Saving Setups . . . . . . . . . . . . . . . . . 3-95
682XXB/683XXB OM iii
Table of Contents (Continued)
Recalling Setups . . . . . . . . . . . . . . . . 3-95
Erasing Stored Setups . . . . . . . . . . . . . 3-96
3-15 SECURE OPERATION . . . . . . . . . . . . . . . 3-97
3-16 SCAN MODULATION (OPTION 20) . . . . . . . . 3-98
3-17 INTERNAL POWER METER (OPTION 8) . . . . . 3-99
3-18 REFERENCE OSCILLATOR CALIBRATION . . 3-100
Chapter 4 - Local Operation