Agilent 778D Service Manual

778D Dual Directional Coupler

Operating and Service
Manual

Manual part number: 00778-90013
Printed in USA
March 2001
Supersedes: June 2000

Revision 2.0

Notice

The information contained in this document is subject to change without
notice.

Agilent Technologies makes no warranty of any kind with regard to this
material, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. Agilent Technologies
shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or
use of this material.

Agilent Technologies assumes no responsibility for the use or reliability of
its software on equipment that is not furnished by Agilent Technologies.

This document contains proprietary information which is protected by
copyright. All rights are reserved. No part of this document may be
photocopied, reproduced, or translated to another language without prior
written consent of Agil ent Technologies.

ESTRICTED RIGHTS LEGEND

R
Use, duplication, or disclosure by the U.S. Government is subject to

restrictions as set forth in subpara graph (c)(1)(ii) of the R ights in Technical
Data and Computer Software clause at DFARS 252.227-7013 for DOD
agencies, and subpara graphs (c)(1) and (c)(2) of the Commercial Computer
Software Restricted Rights clause at FAR 52.227-19 for other agencies.

Agilent Technologies, Inc.
1400 Fountaingrove Parkway
Santa Rosa, CA 95403-1799, U.S.A.

© Copyright 2000–2001 Agilent Technologies, Inc.

ii Agilent 778D Operating And Service Manual

What You’ll Find In This Manual…

Overview, page1

•

•Specifications, page2

•Installation and Shipping, page3

•Operation, page5

•Performance Testing, page9

Agilent 778D Operating And Service Manualiii

Warranty

Custom systems are warranted by contractual agreement between Agilent
Technologies and the customer.

Certification Agilent Technologies, Inc., certifies that this product met its published

specifications at the time of shipment from the factory. Agilent Technologies
further certifies that its calibration measurements are traceable to the
United States National Institute of Standards and Technology (NIST,

formerly NBS), to the extent allowed by the Institute’s calibration facility,
and to the calibration facilities of other International Standards
Organization members.

Warranty This Agilent Technologies system product is warranted against defects in

materials and workmanship for a period corresponding to the individual
warranty periods of its component products. Instruments are warranted for a
period of one year . During the w arranty period, Agile nt T echnol ogies will, at
its option, either repair or replace products that prove to be defective.

Warranty service for products installed by Agilent Technologies and certain
other products designated by Agilent Technologies will be performed at

Buyer’s facility at no charge within Agilent Technologies service travel
areas. Outside Agilent Technologies service travel areas, warranty service
will be performed at Buyer’s facility only upon Agilent Technologies’ prior
agreement and Buyer shall pay Agilent Technologies’ round trip travel
expenses. In all other areas, products must be returned to a service facility
designated by Agilent Technologies.

For products returned to Agilent Technologies for warranty service, Buyer
shall prepay shipping charges to Agilent Technologies and Agilent
Technologies shall pay shipping charges to return the product to Buyer.
Howev er , Buyer sh all pay all ship ping char ges, duti es, and taxe s for products
returned to Agilent Technologies from another country.

Agilent Technologies warrants that its software and firmware designated by
Agilent Technologies for use with an instrument will execute its
programming instructions when properly installed on that instrument.
Agilent Technologies does not warrant that the operation of the instrument,
or software, or firmware will be uninterrupted or error free.

LIMITATION OF WARRANTY. The forego ing warranty shall not apply
to defects resulting from improper or inadequate maintenance by Buyer,
Buyer-supplied softwa re or interfacing, unauthorized modification or
misuse, operation outside of the environmental specifications for the
product, or improper site preparation or maintenance.

iv Agilent 778D Operating And Service Manual

NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. AGILENT
TECHNOLOGIES SPECIFICALLY DISCLAIMS THE IMPLIED
WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.

EXCLUSIVE REMEDIES. THE REMEDIES PROVIDED HEREIN ARE

BUYER’S SOLE AND EXCLUSIVE REMEDIES. AGILENT
TECHNOLOGIES SHALL NOT BE LIABLE FOR ANY DIRECT,
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY
OTHER LEGAL THEORY.

YEAR 2000. Agilent Technologies w arr ants that each Agilent Technologies
hardware, software, and firmware product on Agilent Technologies’
Corporate Price List (dated July 1, 1998 or later) delivered under the
product’s contract of sale will be able to accurately process date data
(including, but not limit ed to, calcu lating, c omparing, and s equencing ) from,
into, and between the twentieth and twen ty-first centuries, and the years
1999 and 2000, including leap year calculations, when used in accordance
with the product documentation provided that all other products (that is,
hardware, software, firmware) used in combination with such Agilent
Technologies product(s) properly exchange date data with it. If the
agreement requires that specific Agilent Technologies products must
perform as a system in accordance wi th the foregoin g warranty, then that
warranty will appl y t o those Agilent Technol ogi es products as a system, and
Customer retains sole responsibility to ensure the year 2000 readiness o f its
information technology and business environment. The duration of this
warranty extends through January 31, 2001.

The remedies av ai lable un der thi s warr anty will be def ined in, and subject to,
the terms and limitations of the warranties contained in the contract of sale.
To the extent permitted by local law, this warranty applies only to branded
Agilent Technologies products and not to products manufacture by others
that may be sold or distri buted by Agilent Technologies. Nothing in this
warranty will be construed to limit any rights or remedies provided
elsewhere in the contr ac t of s ale wi th re spect to matter s other than ye ar 200 0
compliance.

Assistance Product maintenance agreements and other customer assistance agreements

are available for Agilent Technologies products.
For assista nce, ca ll your local Agi lent Technologies Sales and Service Of f ice

(refer to “Service and Support” on page vi).

Agilent 778D Operating And Service Manual v

Service and Support

By internet, phone, or fax, get assistance with all your test and measurement
needs.

Online assistan ce: www.agilent.com/find/assist
United States

(tel) 1 800 452 4844

Canada

(tel) 1 877 894 4414
(fax) [phone]

Japan

(tel) ([phone]
(fax) ([phone]

Latin America

(tel) [phone]
(fax) [phone]

New Zealand

(tel) 0 800 738 378
(fax) ([phone]

Australia

(tel) 1 800 629 485
(fax) (+61) 3 9210
5947

Europe

(tel) ([phone]
(fax) (+31) 20 547
2390

Asia Call Center Numbers

Country Phone Number Fax Number

Singapore 1-800-375-8100 (65) 836-0252
Malaysia 1-800-828-848 1-800-801664
Philippines (632) 8426802

1-800-16510170 (PLDT
Subscriber Only)

Thailand [phone] (outside Bangkok)

[phone] (within Bangkok)

Hong Kong 800-930-871 (852) 2506 9233

(632) 8426809
1-800-16510288 (PLDT
Subscriber Only)

(66) 1-661-3714

Taiwan 0800-047-866 (886) 2 25456723

People’s Republic of
China

800-810-0189 (preferred)
10800-650-0021

10800-650-0121

India 1-600-11-2929 000-800-650-1101

vi Agilent 778D Operating And Service Manual

Safety and Regulatory Information

Review this product and related documentation to familiarize yourself with
safety markings and instructions before you operate the instrument. This
product has been designed and tested in accordance with international
standards.

WARNING The WARNING notice denotes a hazard. It calls attention to a procedure,

practice, or the like, that, if not correctly performed or adhered to, could result
in personal injury. Do not proceed beyond a WARNING notice until the
indicated conditions are fully understood and met.

CAUTION The CAUTION notice denotes a hazard. It calls attention to an operating

procedure, practic e, o r the like, which, if not correctly pe rformed or adhered
to, could result in da mage to the product or loss of important data. Do not
proceed beyond a CAUTION notice until the indicated conditions are fully
understood and met.

Instrument Markings

When you see this symbol on your instrument, you should refer to the instrument’s

!

1SM1-A This text indicates that the instrument is an Industrial Scientific and Medical Group 1

instruction manual for important information.

This symbol indicates hazardous voltages.

The laser radiation symbol is marked on products that have a laser output.

This symbol indicates that the instrument requires alternating current (ac) input.

The CE mark is a registered trademark of the European Community. If it is
accompanied by a year, it indicates the year the design was proven.

The CSA mark is a registered trademark of the Canadian Standards Association.

Class A product (CISPER 11, Clause 4).
This symbol indicates that the power line switch is ON.

This symbol indicates that the power line switch is OFF or in STANDBY position.

Agilent 778D Operating And Service Manual vii