HP HP 84125A Bedienungsanleitung

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HP References in this Manual

This manual may contain references to HP or Hewlett-Packard. Please note that

Hewlett-Packard's former test and measurement, semiconductor products and

chemical analysis businesses are now part of Agilent Technologies. We have

made no changes to this manual copy. In other documentation, to reduce

potential confusion, the only change to product numbers and names has been in

the company name prefix: where a product number/name was HP XXXX the

current name/number is now Agilent XXXX. For example, model number

HP8648A is now model number Agilent 8648A.

HP 84125A/B

User's Guide

Microwave EMI Measurement

est System

ABCDE

HP Part No. 84125-90011

Printed in USA February 1999

Notice

The information contained in this document is subject to change

without notice.

Hewlett-P

ackard makes no warranty of any kind with regard to this

material, including but not limited to, the implied warranties of

merchantability and tness for aparticular purpose. Hewlett-Packard

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.

Restricted Rights Legend

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

restrictions as set forth in subparagraph (c) (1) (ii) of the Rights of

Technical Data and Computer Software clause at DFARS 252.227-7013

for DOD agencies, and subparagraphs (c) (1) and (c) (2) of the

Commercial Computer Software Restricted Rights clause at F

52.227-19 for other agencies



prior written permission is prohibited, except as allowed under the

1400 Fountain Grove Parkway, Santa Rosa CA, 95403-1799, USA

Certication

Hewlett-P

ackard Company certies that this product met its

published specications at the time of shipment from the factory.

Hewlett-P

ackard further certies that its calibration measurements

are traceable to the United States National Institute of Standards and

echnology, to the extent allowed by the Institute's calibration facility,

and to the calibration facilities of other International Standards

Organization members.

Regulatory Information

Regulatory information is located in Chapter 2.

Warranty

This Hewlett-P

ackard instrument product is warranted against defects

in material and workmanship for aperiod of one year from date of

shipment. During the warranty period, Hewlett-Packard Company

will, at its option, either repair or replace products which prove to be

defective

For warranty service or repair, this product must be returned to a

service facility designated by Hewlett-P

ackard. Buyer shall prepay

shipping charges to Hewlett-P

ackard and Hewlett-P

ackard shall pay

shipping charges to return the product to Buyer. However, Buyer shall

pay all shipping charges

,duties

,and taxes for products returned to

Hewlett-P

ackard from another country

Hewlett-Packard warrants that its software and rmware designated

by Hewlett-Packard for use with an instrument will execute

its programming instructions when properly installed on that

instrument. Hewlett-Packard does not warrant that the operation

of the instrument, or software, or rmware will be uninterrupted or

error-free.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from

improper or inadequate maintenance by Buyer, Buyer-supplied

software or interfacing, unauthorized modication or misuse,

operation outside of the environmental specications for the

product, or improper site preparation or maintenance.

NO OTHER WARRANTY IS EXPRESSED OR IMPLIED.

HEWLETT-PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE.

Exclusive Remedies

THE REMEDIES PROVIDED HEREIN ARE BUYER'S SOLE AND

EXCLUSIVE REMEDIES. HEWLETT-PACKARD SHALL NOT BE

LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR

CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT,

TORT, OR ANY OTHER LEGAL THEORY.

iii

Assistance

Product maintenance agreements and other customer assistance

agreements are available for Hewlett-P

ackard products.For any

assistance

,contact your nearest Hewlett-Packard Sales and Service

Oce

Compliance

This instrument has been designed and tested in accordance with

IEC Publication 348, Safety Requirements for Electronic Measuring

Apparatus, and has been supplied in a safe condition. The instruction

documentation contains information and warnings which must be

followed by the user to ensure safe operation and to maintain the

instrument in a safe condition.

Safety Notes

The following safety notes are used throughout this manual.

Familiarize yourself with each of the notes and its meaning before

operating this instrument.

WARNING

Warning denotes a hazard. It calls attention to a procedure

which, if not correctly performed or adhered to, could result in

injury or loss of life.Do

not

proceed beyond a warning note until

the indicated conditions are fully understood and met.

UTION

Caution denotes ahazard. It calls attention to a procedure that, if

not correctly performed or adhered to, would result in damage to or

destruction of the instrument. Do

not

proceed beyond a caution sign

until the indicated conditions are fully understood and met.

General Safety Considerations

WARNING

No operator serviceable parts inside. Refer servicing to

qualied personnel. To prevent electrical shock, do not remove

covers.

If this instrument is not used as specied, the protection

provided by the equipment may be impaired. This instrument

must be used in a normal condition (in which all means for

protection are intact) only.

For continued protection against re hazard, replace line fuse

only with same type and rating ([F 5A/250V]). The use of other

fuses or material is prohibited.

CAUTION

Before switching on this instrument, make sure that the line voltage

selector switch is set to the voltage of the power supply and the

correct fuse is installed.

Always use the three-prong ac power cord supplied with this

instrument. Failure to ensure adequate earth grounding by not

using this cord may cause instrument damage.

Only clean the instrument cabinet using adamp cloth.

The instruction documentation symbol. The product is

marked with this symbol when it is necessary for the

user to refer to the instructions in the documentation.

CE The CE mark is a registered trademark of the European

Community

.(If accompanied by a year, it is when the

design was proven.)

ISM1-A This is asymbol of an Industrial Scientic and Medical

Group 1 Class A product.

CSA The CSA mark is a registered trademark of the Canadian

Standards Association.

Manual Conventions

Front-Panel Key

This represents a key physically located on the

instrument.

NNNNNNNNNNNNNNNNNNNNNNN

Softkey

This indicates a \softkey," a key whose label is

determined by the rmware of the instrument.

Screen Text

This indicates text displayed on the instrument's

screen.

Contents

1. Product Description

Measurement Overview . . . . . . . . . . . . . . . 1-2

2. Specications and Characteristics

Denition of Terms. . .. .. .. .. .. .. .. .. 2-1

Antenna Specications and Characteristics . . . . . . 2-2

Typical Sensitivity for an HP 84125A/B System . . . . . 2-4

Amplitude Accuracy ................. 2-5

Declaration of Conformity .............. 2-6

3. System Setup and Functional Tests

System Setup ..... .. .. .. .. .. .. .. .. 3-1

Initial Inspection .................. 3-1

est-Set Components ... .. .. . .. .. .. .. 3-2

Installing the HP 84125A/B System ......... 3-4

Assembling the Test Mobile Instrument Cart .. .. 3-4

Installing the EMC Analyzer . . . . . . . . . . . . 3-4

Attaching the Power Module and Power Cords ... 3-6

Installing the Accessories and Test Set in the System 3-6

Performing an EMC Analyzer Calibration . . . . . . 3-6

Connecting the RF Cable Assembly to the EMC

Analyzer ................... 3-7

Connecting the DC Ampliers to the RF Cable

Assembly ............ .. .. .. . 3-10

System Functional Tests................ 3-11

Test Set Verication Description . . . . . . . . . . . 3-11

Procedure ..................... 3-13

Displayed Average Noise Level (DANL) Description . . 3-15

Equipment Required ................ 3-16

Procedure: Input 1 to 18 GHz (1 to 2.9 GHz, 2.68 to 18

GHz) .... .. .. .. .. .. .. .. .. .. 3-16

Input 18 to 26.5 GHz (F

or an HP 84125B only) .... 3-18

4. Test Set Hardware Congurations

1 to 18 GHz Conguration . . . . . . . . . . . . . . 4-1

18 to 26.5 GHz Conguration (For the HP 84125B only) 4-4

Cable and Connector Care . . . . . . . . . . . . . . . 4-5

Connection Procedure .... .. .. .. . .. .. 4-5

Disconnection Procedure .... .. .. .. .. .. 4-6

Handling and Storage . . . . . . . . . . . . . . . . . 4-6

Contents-1

5. System Interface

HP 84125A/B System Softkey Reference . . . . . . . . 5-1

6. Making Measurements

Conguring the TestSet............... 6-2

Setting Up the HP 8593EM EMC Analyzer ...... 6-3

Making the Measurement .............. 6-3

Making a Measurement Using Average Detection ... 6-4

Calibrating the HP 8593EM EMC Analyzer . . . . . . . 6-5

Improving Accuracy with Self-Calibration Routines . . 6-5

Warm-up time .. .. .. .. .. . .. .. .. .. 6-5

Preparing the HP 8593EM EMC Analyzer for

Calibration ................... 6-6

Performing a Frequency and Amplitude Calibration . . 6-6

Performing the YTF self-calibration routine ..... 6-8

When is self-calibration needed? . . . . . . . . . . . 6-8

7. Customer Support

If You Have a Problem .. .. .. .. .. .. .. .. 7-1

Calibration Information . . . . . . . . . . . . . . . . 7-2

Reloading the Downloadable Program (DLP) into the EMC

Analyzer ................. .. .. 7-2

Changing the memory card battery ......... 7-2

Procedure to change the memory card battery ...7-3

Replaceable P

arts ................... 7-4

Returning the HP 84125A/B System for Calibration or

Service ..................... 7-5

ackaging the HP 84125A/B System for Shipment . . . 7-5

Hewlett-P

ackard Sales and Service Oces ...... 7-6

A. Amplitude A

ccuracy

EMC Analyzer Uncertainties .... .. .. .. .. A-1

HP 84125A/B Test-Set Uncertainties . . . . . . . . . A-2

Index

Contents-2

Figures

2-1. HP 84125A/B System Dimensions .......... 2-3

2-2. Typical Sensitivity from 1 to 18 GHz . . . . . . . . . 2-4

2-3. Typical Sensitivity from 18 to 26.5 GHz ....... 2-4

2-4. Declaration of Conformity .... .. .. .. .. . 2-6

3-1. EMC Analyzer Installation .. .. .. .. .. .. . 3-5

3-2. Front view of the EMC Analyzer .......... 3-7

3-3. Strain Relief Installation .............. 3-9

3-4. DC Ampliers Cable Routing .. .. .. .. .. .. 3-10

3-5. Reference Point Setup ............... 3-13

3-6. System Gain Verication .... .. .. .. .. .. 3-15

3-7. DANL Measurement Setup, 1 to 18 GHz ....... 3-16

3-8. D

ANL Measurement Setup

,18 to 26.5 GHz . . . . . . 3-18

4-1. T

est Set Diagram ...... .. .. .. .. .. .. 4-1

4-2. 1to 18 GHz T

est-Set Conguration (top view) .... 4-2

4-3. 18 to 26.5 GHz T

est-Set Conguration (side view) . . . 4-4

7-1. Memory Card Battery Date Code Location ...... 7-3

7-2. Memory Card Battery Replacement .... .. .. . 7-3

7-3. Component Location Diagram . . . . . . . . . . . . 7-5

ables

3-1. HP 84125A/B System Accessories .. .. .. .. .. 3-2

3-2. Recommended Test Equipment and Accessories . . . . 3-12

3-3. Recommended Test Equipment and Accessories . . . . 3-16

3-4. Test Set Verication . . . . . . . . . . . . . . . . . 3-19

3-5. Displayed Average Noise Level ........... 3-19

7-1. Replaceable Parts.... .. .. .. .. .. .. .. 7-4

7-2. HP Sales and Service Oces . . . . . . . . . . . . . 7-7

A-1. HP 84125A/B System Uncertainties .... .. .. . A-4

Contents-3

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