Anritsu 681XXC User manual

SERIES

681XXC

SYNTHESIZED SIGNAL GENERATOR

OPERATION MANUAL

P/N: 10370-10333

REVISION: B

PRINTED: APRIL 2001

490 JARVIS DRIVE

MORGAN HILL, CA 95037-2809

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 conse-

quential 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 specifi-

cations 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 customers

as a guide for the proper installation, operation, and maintenance of Anritsu Company equipment

and computor programs. The drawings, specifications, and information contained herein are the

property of Anritsu Company, and any unauthorized use or disclosure of these drawings, specifica-

tions, 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 writt-

ten 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.

681XXC OM Safety-1

Safety-2 681XXC OM

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 precision

components, do not remove the equipment covers.

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

For Safety

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

connected.

Always use a new fuse of the type and rating specified by

the fuse markings on the rear panel of the instrument.

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.

WARNING

If the equipment is used in a manner not specified by the

manufacturer, the protection provided by the equipment

may be impaired.

WARNING

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 ............1-5

1-5 ELECTRONIC MANUAL...............1-5

1-6 RELATED MANUALS ................1-5

GPIB Programming Manual ...........1-5

SCPI Programming Manual ...........1-5

Maintenance Manual ..............1-6

1-7 OPTIONS .......................1-6

1-8 PERFORMANCE SPECIFICATIONS ........1-7

1-9 RECOMMENDED TEST EQUIPMENT .......1-8

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

681XXC OM i

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 681XXC............3-14

Start-Up Display ................3-14

Standby Operation ...............3-14

Self-Testing the 681XXC ............3-15

Resetting to Default Parameters ........3-15

3-10 POWER LEVEL SWEEP OPERATION.......3-53

Selecting CW Power Sweep Mode ........3-53

Setting CW Power Sweep Step Size and Dwell Time3-54

Selecting a CW Power Sweep Trigger ......3-55

Selecting a Power Level Sweep Range......3-56

Selecting a Sweep Frequency/Step Power Mode . 3-58

Setting Power Level Step Size .........3-59

3-11 LEVELING OPERATIONS .............3-60

Selecting a Leveling Mode ...........3-60

Attenuator Decoupling .............3-64

ALC Power Slope................3-65

User Cal (User Level Flatness Correction) . . . 3-67

3-12 SIGNAL MODULATION ..............3-73

Amplitude Modulation Operating Modes ....3-73

Providing Amplitude Modulation ........3-73

ii 681XXC OM

Table of Contents (Continued)

Frequency Modulation Operating Modes ....3-74

Providing Frequency Modulation ........3-75

Square Wave Modulation Operating Modes . . . 3-77

Providing Square Wave Modulation .......3-77

3-13 SYSTEM CONFIGURATION ............3-80

Configuring the Front Panel ..........3-81

Configuring the Rear Panel...........3-82

Configuring the RF ...............3-83

Configuring the GPIB .............3-85

Setting Increment Sizes ............3-88

3-14 SAVING/RECALLING INSTRUMENT SETUPS . 3-89

Saving Setups .................3-89

Recalling Setups ................3-89

Erasing Stored Setups .............3-90

3-15 SECURE OPERATION ...............3-91

3-16 REFERENCE OSCILLATOR CALIBRATION . . . 3-92

Chapter 4 Local Operation–Menu Maps

4-1 INTRODUCTION ...................4-3

4-2 MENU MAP DESCRIPTION .............4-3

Chapter 5 Operation Verification

5-1 INTRODUCTION ...................5-3

5-2 TEST EQUIPMENT..................5-3

5-3 TEST RECORDS ...................5-3

5-4 INITIAL 681XXC CHECKOUT............5-4

Power Up ....................5-4

Self Test.....................5-4

Resetting the 681XXC ..............5-4

Warmup Time ..................5-4

5-5 CW FREQUENCY ACCURACY TEST........5-5

Test Setup....................5-5

Test Procedure..................5-6

5-6 POWER LEVEL ACCURACY AND FLATNESS

TESTS ........................5-13

Test Setup ...................5-13

681XXC OM iii

Table of Contents (Continued)

Power Level Accuracy Test Procedure ......5-14

Power Level Flatness Test Procedure ......5-15

Chapter 6 Operator Maintenance

6-1 INTRODUCTION ...................6-3

6-2 ERROR AND WARNING/STATUS MESSAGES. . . 6-3

Self-Test Error Messages.............6-3

Normal Operation Error and Warning/ Status

Messages ....................6-8

6-3 TROUBLESHOOTING ...............6-10

6-4 ROUTINE MAINTENANCE ............6-13

Cleaning the Fan Filter.............6-13

Cleaning the Data Display ...........6-13

Replacing the Line Fuse ............6-14

Chapter 7 Use With Other Instruments

7-1 INTRODUCTION ...................7-3

7-2 MASTER-SLAVE OPERATION ...........7-4

Connecting the Instruments ...........7-4

Initiating Master-Slave Operation ........7-5

Master-Slave Operation .............7-7

Master-Slave Operation in VNA Mode ......7-7

Terminating Master-Slave Operation.......7-9

7-3 USE WITH A 56100A SCALAR NETWORK

ANALYZER......................7-10

Connecting the 681XXC to the 56100A .....7-10

7-4 USE WITH A 360B VECTOR NETWORK

ANALYZER......................7-11

Connecting the 681XXC to the 360B ......7-11

Modes of Operation...............7-12

Source Lock Mode ...............7-12

Tracking Mode .................7-14

7-5 USE WITH A HP8757D SCALAR NETWORK

ANALYZER......................7-16

Connecting the 681XXC to the HP8757D ....7-16

Setting Up the 681XXC.............7-17

Initiating HP8757D SNA Operation.......7-19

iv 681XXC OM

Table of Contents (Continued)

Appendix A Rear Panel Connectors

A-1 INTRODUCTION...................A-1

A-2 REAR PANEL CONNECTORS ...........A-1

A-3 CONNECTOR PINOUT DIAGRAMS ........A-1

Appendix B Performance Specifications

681XXC OM v/vi

Table of Contents (Continued)

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