Keysight (Agilent) 8546A Users Guide

User's

Guide

EMI Receiver Series

HP 8542E/HP 8546A

EMI Receiver

HP 85422E/HP 85462A

Receiver RF Section

ABCDE

HP Part No. 5962-5081

Printed in USA August 1994

Notice

The information contained in this document is subject to change

without notice.

Hewlett-P

material,

merchantability

shall

or

consequential

not

ackard

including

be

liable

makes

and

but

tness

no

not

warranty

limited

for

to, the implied warranties of

a

particular purpose. Hewlett-Packard

for errors contained herein or for incidental

damages

in

connection with the furnishing,

performance, or use of this material.

of any kind with regard to this

c



Copyright Hewlett-Packard Company 1994

All Rights Reserved. Reproduction, adaptation, or translation without

prior written permission is prohibited, except as allowed under the

copyright laws.

1400 Fountaingrove Parkway, Santa Rosa CA, 95403-1799, USA

Certication

Regulatory Information

Hewlett-P

published

Hewlett-P

are

T

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

and

Organization

ackard

specications

ackard

Company

at

further

certies

the

time

certies

that

this product met its

of shipment from the factory.

that

its calibration measurements

traceable to the United States National Institute of Standards and

to the calibration facilities of other International Standards

members.

Warranty

Regulatory information is located in the

manual

at

the

end

of

Chapter

1,

\Specications

EMI Receiver Series Reference

and Characteristics."

This Hewlett-Packard instrument product is warranted against defects

in material and workmanship for a period 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.

F

or

warranty

service

shipping

shipping

pay

all

shipping

Hewlett-P

Hewlett-P

by

Hewlett-P

its

programming

instrument.

facility

charges

charges

ackard

ackard

Hewlett-P

service

designated

to

to

charges

from

warrants

ackard

instructions

or

repair

by

Hewlett-P

return

,

duties

the

another

that

for

use

with

ackard

,

this

product

Hewlett-P

ackard

and

product

,

and

taxes

country

its

software

must

be

ackard.

Buyer

Hewlett-P

to

Buyer

.

However

for

products

.

and rmware designated

an instrument will execute

when

does

properly

not

installed on that

warrant that the operation

returned

shall

ackard

returned

prepay

shall

,

Buyer

to

a

pay

shall

to

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 W

ARRANTY 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

assistance

Oce

.

are

,

contact

agreements

available

your

for

Hewlett-P

nearest

and

other

customer assistance

ackard products.For any

Hewlett-Packard Sales and Service

Compliance

Safety

Notes

WARNING

CA

UTION

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.

The

following

safety

notes

are

used

throughout

this manual.

Familiarize yourself with each of the notes and its meaning before

operating this instrument.

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.

Caution

denotes

a

hazard.

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.

iv

General Safety Considerations

WARNING

CAUTION

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.

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

L

instrument

The

instruction

marked

user

to

with

refer

cabinet

using

documentation

this

symbol

to

the

instructions in the documentation.

a

when

damp

symbol.

it

is

cloth.x

The

necessary

product

for

the

is

Manual Conventions

CE

ISM1-A

The

CE

mark

Community

design

This

was

is

a

symbol of an Industrial Scientic and Medical

is

a registered trademark of the European

.

(If

accompanied

by a year, it is when the

proven.)

Group 1 Class A product.

CSA The CSA mark is a registered trademark of the Canadian

Standards Association.

4

Front-Panel Key

5

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.

v

EMI Receiver Series Documentation Description

The

following

HP

8546A

section.

documents are provided with either the HP 8542E/

EMI receiver or the HP 85422E/HP 85462A receiver RF

Installation and Verication

your instrument, verifying instrument operation, and customer

support.

User's Guide

measurements with your EMI receiver or receiver RF section.

Reference

error messages, and key descriptions.

Programmer's Guide

instrument conguration, creating programs, and parameters for

each of the programming commands available.

describes instrument features and how to make

provides specications and characteristics, menu maps,

provides information on remote control

provides information for installing

vi

Contents

1. Getting Started

What You'll Learn in This Chapter . . . . . . . . . . . 1-1

Introducing the EMI Receiver . . . . . . . . . . . . 1-1

Getting Acquainted with the EMI Receiver . . . . . . . 1-3

Front-Panel Features ................ 1-3

Data Controls ................... 1-6

Number/Units Keypad .............. 1-6

Knob ...................... 1-6

Step Keys .. ...... ...... ...... 1-7

HOLD Key . . . . . . . . . . . . . . . . . . . . 1-7

Rear-P

Screen

Receiver

Menu

Disk

Receiver

anel

F

eatures

Annotation

RF

Section

and

Softkey Overview ............. 1-12

Drive

...................... 1-13

RF

Section Battery Information . . . . . . . . 1-14

.

.

.

.

.

.

.

......... 1-7

.

................. 1-10

Annotation . . . . . . . . . . . 1-11

2. Calibration

What You'll Learn in this Chapter ........... 2-1

Improving Accuracy ........ ...... .. 2-1

When is Self-Calibration Needed? .......... 2-2

Warm-UpTime .... ...... ..... .... 2-2

Calibrating

Using

V

erifying

Using

Using

the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

EMI

CAL FETCH

the

NNNNNNNNNNNNNNNNNNNNNNN

CAL ALL

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CAL

Receiver's

...... ...... ...... 2-4

STORE

Receiver

.

.

.

.

.

...... . 2-3

...... ...... .... 2-3

Calibration

.

.

.

............. 2-5

.

...... . 2-3

Interrupting calibration . . . . . . . . . . . . . . 2-5

Using the AutoCal Function . . . . . . . . . . . . . 2-6

Setting the Receiver's Clock . . . . . . . . . . . . 2-6

Setting A

Performing a P

utoCal Time

............... 2-6

artial Calibration . . . . . . . . . . . 2-7

Performing the Tracking Generator Self-Calibration

Routine . . . . . . . . . . . . . . . . . . . . .

Performing the YIG-Tuned Filter Self-Calibration

Routine . . . . . . . . . . . . . . . . . . . . . 2-8

Calibrating the Receiver RF Section as a Standalone

Instrument ................... 2-9

2-8

Contents-1

3. Making Compliance Measurements

What You'll Learn in This Chapter . . . . . . . . . . . 3-1

Introducing the SETUP, TEST, and OUTPUT Keys . . . . 3-2

Setting Up a Measurement Using the SETUP Key . . . . 3-2

Using Standard Congurations . . . . . . . . . . . . 3-2

Customizing the Standard Congurations . . . . . . . 3-3

Modifying Start and Stop Frequencies ....... 3-3

Modifying Reference Level and Input Attenuation . 3-3

Modifying IF and Averaging Bandwidths . . . . . . 3-4

Selecting the Active Detector .. ...... ... 3-4

Selecting the Measured Detectors .. ...... . 3-5

Measuring

Detector

Dwell

Times

.

.

.

.

.

..... 3-6

Controlling the Preamplier . . . . . . . . . . . . 3-6

Controlling Autoranging.... ...... .... 3-7

Loading User-Dened Congurations from a Disk . . . 3-8

UsingLimitLines.................. 3-8

Loading a Limit Line from the Disk .... .... 3-9

Using

Amplitude

Correction

F

actors

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

Loading an Amplitude Correction Factor File from a

Disk ..................... 3-11

Activating the Windows Display Format ....... 3-12

Making a Measurement ........ ...... .. 3-14

Tuning

Using

Using

Creating

Conguring

Conguring

the

the

the

a

Report

Receiver

Marker

Measure

.

a

Printer

and

Generating

to

at

.

.

.

Tune

Marker

.

.

.

.

.

.

.

.

.

.

.

.

.

...... 3-14

the

Receiver

Function

.

.

.

.

.

.

.

.

.

a

Report . . . . . . . . . 3-20

.

.

.

.

.

.

.

.

.

.

.

.

.

.

...... ... 3-19

.

.

....... 3-19

. 3-15

. 3-16

4.

List-Based

A

dding

Viewing

Measurements

Signals

the

to

the List . . . . . . . . . . . . . . 4-3

Signal

List ...... ...... ... 4-5

Sorting the Signal List .... ...... ..... 4-6

Deleting Signals From the List . . . . . . . . . . . . 4-7

Marking Signals ........ ...... .... 4-8

Remeasuring Signals ................ 4-9

Saving Signal Lists ........ ...... ... 4-10

Recalling Signal Lists .... ...... ...... 4-10

Graphing Signal Lists . . . . . . . . . . . . . . . . 4-11

Saving Signal Lists Graphs ............. 4-12

5. Stepped Measurements

Performing a Stepped Measurement

.........

Selecting a Detector and Setting a Dwell Time ... 5-3

Using the Marker . . . . . . . . . . . . . . . . . 5-4

Adding Data to the Signal List Table........ 5-5

Changing the Frequency Step . . . . . . . . . . . 5-5

Restarting and Stopping the Measurement ..... 5-5

Using Logarithmic and Linear Steps ...... ... 5-7

5-1

Contents-2

6. Making EMI Diagnostic Measurements

What You'll Learn in This Chapter . . . . . . . . . . . 6-1

Resolving Signals of Equal Amplitude ...... ... 6-2

Resolving Small Signals Hidden by Large Signals .... 6-5

Increasing the Frequency Readout Resolution ..... 6-8

Decreasing the Frequency Span . . . . . . . . . . . . 6-10

Peaking Signal Amplitude with Preselector Peak .... 6-11

Tracking Unstable Signals . . . . . . . . . . . . . . . 6-13

Using the Marker Track Function ...... .... 6-13

Using Maximum-Hold and Minimum-Hold ...... 6-15

Comparing Signals Using Delta Markers ........ 6-18

Measuring

Dierences

Between

Two

Signals

.

.

.

.

Measuring Dierences Between Signals On Screen and

O Screen ................... 6-19

Measuring Low-Level Signals .. ...... ..... 6-22

Reducing Input Attenuation . . . . . . . . . . . . . 6-22

Reducing IF Bandwidth . . . . . . . . . . . . . . . 6-25

Reducing

A

veraging

Bandwidth

.

.......... 6-26

Using Video Averaging ............... 6-27

Testing for Distortion Using the Linearity Check .... 6-30

Measuring Small Signals in the Presence of a Large

Ambient Signal ...... ...... ..... 6-30

Using

Linearity

Demodulating

and

Check

Listening

.

.

.

.

.

.

.

.

.

.

..... 6-33

to

an

AM

or

FM

Signal

.

.

. 6-18

.

6-36

7.

Making

What

Stimulus-Response

Other

Y

ou'll

What

Are

Using

the

Generator

Stepping

Measurements

Learn

in

This

Chapter

Measurements

Stimulus-Response

Receiver

Through

With

the Internal Tracking

.

.

.

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

the

Measurement ......... 7-3

.

.

.

.

.

.

.

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

Measurements?

...... 7-1

..... 7-2

Tracking Generator Unleveled Condition . . . . . . . 7-7

Measuring Amplitude Modulation with the Fast Fourier

Transform Function . . . . . . . . . . . . . . . . 7-8

Measuring the Sidebands on a Signal . . . . . . . . . 7-8

Repeating the test .... ...... ...... 7-12

Measuring 3 dB and 6 dB Bandwidth . . . . . . . . . 7-13

Measuring 99% Power Bandwidth .......... 7-14

Measuring Percent AM Modulation . . . . . . . . . . 7-15

Measuring Amplitude and Frequency Dierence

Making 3rd Order Measurements

...... ....

...

8. Limit Lines

Using Receiver Limit Lines .............. 8-2

Creating, Editing, or Viewing a Limit Line . . . . . . 8-2

Editing an Existing Limit Line . . . . . . . . . . . . 8-6

Dening a Limit Margin . . . . . . . . . . . . . . . 8-7

Activating Limit-Line Testing ............ 8-8

Saving or Recalling Limit-Line Tables .. ...... 8-8

Saving a Limit-Line Table .. ...... ..... 8-8

Recalling a Limit-Line Table........ .... 8-9

Viewing the Disk Catalog ............. 8-10

Using Signal Analyzer Limit Lines .... ...... . 8-11

Creating, Editing or Viewing a Limit Line .... .. 8-11

7-16

7-18

Contents-3

Selecting Limit-Line Parameters.......... 8-12

Selecting the Amplitude Scale . . . . . . . . . . . 8-13

Selecting the Limit-Line Table Format .... .... 8-15

Activating Limit-Line Testing ............ 8-16

9. Amplitude Correction Functions

Creating, Editing, or Viewing the Amplitude-Correction

Tables ..................... 9-1

Activating Amplitude Correction .. ...... .. 9-6

Saving or Recalling . . . . . . . . . . . . . . . . . 9-7

10.

Windows

Learn About the Windows Display . . . . . . . . . . . 10-1

11. Saving, Recalling, and Outputting Data

Using a Floppy Disk ................. 11-1

F

ormatting

Filenames

the

.

Disk

.

.

...... ...... ... 11-1

.

.

...... ...... ..... 11-2

DOSFilenames.................. 11-2

LIF Filenames .. ...... ...... .... 11-2

Available Operations ................ 11-2

Entering

Saving

Recalling

Saving

Saving

Recalling

Saving

Recalling

Protecting

How

Conguring

and

to

a

Prex

a

Trace

a

Recalling

a

State

a

a

Trace

a

Data

Output

Trace

State

Trace

from

Data

a

Printer

.

.

.

.

.

.

.

.

.

.

.

...... . 11-3

.

.

.

.

.

.

.

.

.

.

......... 11-4

.

.

.

.

.

.

.

.

.

.

........ 11-6

Data

from

Internal

.

.

.

.

.

.

.

.

.

...... ...... ..... 11-9

.

...... ...... ...... 11-10

.

................. 11-10

Being

Overwritten . . . . . . . . 11-11

Memory

.

.

......... 11-9

.

................. 11-12

................ 11-12

Conguring and Generating a Report . . . . . . . . . 11-13

.

.

.

11-9

Contents-4

12. Additional Features

What You'll Learn in This Chapter . . . . . . . . . . . 12-1

Signal Analyzer Emulation .............. 12-1

Demodulator . . . . . . . . . . . . . . . . . . . . . 12-2

TrackingGenerator...... ...... ...... 12-2

User-Denable Softkeys . . . . . . . . . . . . . . . . 12-5

Defaults ........

.............. 12-5

Programming.. ...... ...... ......

Resetting . . . . . . . . . . . . . . . . . . . . . . 12-6

External Keyboard ........ ...... .... 12-7

Installation . . . . . . . . . . . . . . . . . . . . . 12-7

Using the Template . . . . . . . . . . . . . . . . . 12-8

Entering Data Using the External Keyboard ..... 12-9

Entering Annotation ........ ...... . 12-9

Entering Programming Commands . . . . . . . . . 12-10

Entering a Screen Title .. ...... ...... 12-10

Entering a Prex . . . . . . . . . . . . . . . . . 12-11

12-6

13. Error Messages

Nonrecoverable System Errors ............ 13-14

14. Customer Support

If You Have a Problem .. ...... ...... .. 14-1

Calling HP Sales and Service Oces .......... 14-1

ChecktheBasics . ...... ...... ...... 14-2

If Your EMI Receiver Does Not Turn On ....... 14-2

If the RF Filter Section Does Not Seem to be Working . 14-2

If the EMI Receiver Cannot Communicate Via HP-IB . 14-2

Verication of Proper Operation . . . . . . . . . . . 14-2

If

the

RF

lter

section

Does

Not

P

ower

O...... 14-2

Error Messages . . . . . . . . . . . . . . . . . . . 14-2

Additional Support Services . . . . . . . . . . . . . . 14-3

CompuServe ...... ...... ...... .. 14-3

FAX Support Line .... ...... ...... . 14-4

Returning

P

ackage

the

the

EMI

EMI

Receiver

receiver

for

Service .. ...... 14-5

for shipment ....... 14-5

Index

Contents-5

Figures

1-1. EMI Receiver . . . . . . . . . . . . . . . . . . . . 1-1

1-2. Front-Panel Feature Overview . . . . . . . . . . . . 1-3

1-3. Rear-Panel Feature Overview ............ 1-7

1-4. EMC Screen Annotation, Normal Operating Mode . . . 1-10

1-5. EMC Screen Annotation Using Windows . . . . . . . 1-11

1-6. Rear-Panel Battery Information Label ........ 1-14

3-1. Active Detector and Measured Detector Messages . . . 3-5

3-2. \

PREAMP ON

" and \

AUTORANGE ON

" Messages ..... 3-7

3-3. Using the Measure at Marker Function . . . . . . . . 3-17

6-1. Set-Up for Obtaining Two Signals .......... 6-3

6-2. Resolving Signals of Equal Amplitude ........ 6-4

6-3.

IF

6-4.

6-5.

6-6.

6-7.

Bandwidth

Signal

Signal

Using

the

After

Zooming

Resolution

Resolution

for

Marker

In

Resolving

with

a

30

with

a

10

Counter

on

the

Signal ........... 6-10

Small

Signals

kHz

IF Bandwidth .... 6-6

...... 6-5

kHz IF Bandwidth .... 6-7

.

............. 6-9

6-8. Peaking Signal Amplitude Using Preselector Peak . . . 6-12

6-9. Using Marker Tracking to Track an Unstable Signal . . 6-14

6-10. Viewing an Unstable Signal Using Max Hold A .... 6-16

6-11. Viewing an Unstable Signal using Max and Min Hold . 6-17

6-12. Placing a Marker on the CAL OUT Signal . . . . . . . 6-18

6-13. Using the Marker Delta Function .......... 6-19

6-14. Frequency and Amplitude Dierences . . . . . . . . 6-20

6-15. Using the Delta Meas Function ........ ... 6-21

6-16. Low-Level Signal . . . . . . . . . . . . . . . . . . 6-23

6-17. Using 0 dB Attenuation . . . . . . . . . . . . . . . 6-24

6-18.

6-19.

6-20.

Decreasing

Decreasing

Using

the

IF

bandwidth

A

veraging

Video

.

............. 6-25

Bandwidth .......... 6-27

Averaging Function . . . . . . . . . 6-29

6-21. Set-Up for Obtaining Two Signals .......... 6-31

6-22. Using Linearity Check to Detect Compression .... 6-32

6-23. Set-Up for Obtaining Two Signals .......... 6-33

6-24. Generating Third Order Distortion Products

6-25. Using Linearity Check to Identify Distortion Products .

7-1. Receiver/Tracking Generator System Block Diagram

7-2. Transmission Measurement T

7-3. Tracking-Generator Output P

estSetup ........ 7-3

ower Activated . . . . . 7-4

..... 6-34

6-35

. 7-2

7-4. Normalized Trace . . . . . . . . . . . . . . . . . . 7-6

7-5. Maximum Modulation Frequency versus Sweep Time . 7-10

7-6. Using the FFT Function . . . . . . . . . . . . . . . 7-11

7-7. Using the 6 dB Points Function ...... ..... 7-13

7-8. Using the 99% Pwr BW Function .......... 7-14

7-9. Using the % AM Function . . . . . . . . . . . . . . 7-15

7-10. Using the Delta Meas Function ........ ... 7-16

7-11. Using the Pk-Pk Function . . . . . . . . . . . . . . 7-17

7-12. Setup for Making 3rd Order Measurements . . . . . . 7-18

Contents-6

7-13. Using 3rd Ord Meas Function ............ 7-19

12-1. External Keyboard Template .. ...... .... 12-8

Contents-7

Tables

3-1. HP 8542E/HP 8546A Standard Congurations .. .. 3-2

11-1. Internal Memory and Floppy Disk Operations . . . . . 11-3

11-2. Save Functions Using a Floppy Disk . . . . . . . . . 11-7

11-3. Recall Functions Using a Floppy Disk ........ 11-8

11-4. Summary of Save and Recall Operations, Internal

Memory ...... ...... ...... .. 11-11

14-1. Hewlett-Packard Sales and Service Oces ...... 14-6

Contents-8

Getting Started

What You'll Learn in This Chapter

This chapter introduces the EMI Receiver, HP 8542E and HP 8546A,

and describes their basic functions. In this chapter you will:

Get acquainted with the front-panel and rear-panel features.

Learn about screen annotation.

Get acquainted with the menus and softkeys.

Learn about the disk drive.

Learn about the receiver battery.

F

Note

or complete conguration and installation information, refer to the

EMI Receiver Series Installation and Verication Manual

1

.

Introducing

the

EMI

Receiver

Figure 1-1. EMI Receiver

Getting Started 1-1

The EMI Receiver Series is a high-performance test receiver

especially designed for making commercial EMI (Electro-Magnetic

Interference) measurements. It fully conforms to the receiver

standards described in CISPR (Comit e International Sp ecial Des

Perturbations Radio electriques) Publication 16,

C.I.S.P.R. Specication

for Radio Interference Measuring Apparatus and Measurement

Methods

. This type of receiver is used for making measurements

according to various governmental standards, such as FCC (U.S.A.),

EN (Europe), and VCCI (Japan) regulations. The HP 8542E/HP 8546A

tunes from 9 kHz to 6.5 GHz (9 kHz to 2.9 GHz for the HP 8542E),

making it suitable for testing a wide variety of products ranging

from

ITE

(Information

T

echnology

Equipment)

and

ISM

(Industrial,

Scientic, and Medical Equipment), to household appliances and

telecommunications equipment.

The EMI Receiver Series consists of two parts|the receiver RF section

and the RF lter section. The two units are connected together

via

several

cables

on

the

front and rear panels to form a single

instrument. All control for both units is handled by the receiver RF

section, whether manually from the front panel or automatically

through the interface bus.

For precompliance and diagnostic EMI applications which do not

require

RF

section

measurements

receiver

authorized

a

section

has

fully

by

compliant

can

be

the

EMI-specic

.

The

adding

HP

service

used

receiver

a

RF

center

CISPR

as

lter

Publication

a

stand-alone

functionality

RF

section

section

instrument.

to

can

and

sending

for calibration verication.

16

receiver

perform

be

upgraded

the

,

The

these

pair

the

receiver

receiver

types

to

an

to

an

RF

of

EMI

Note

Before using your receiver, please use the

Installation and Verication Manual

EMI Receiver Series

to ensure proper installation,

including connections between the receiver RF section and RF lter

section, conguration of the receiver, and verication of its operation.

1-2 Getting Started

Getting Acquainted with the EMI Receiver

Front-P

anel

F

eatures

Note

Figure 1-2. Front-Panel Feature Overview

The following section provides a brief description of front-panel

features. Refer to Figure 1-2.

1

4

5

turns the instrument on and o. An instrument self-check

LINE

is performed every time the instrument is turned on. After

applying power

stabilize for best measurement results

, allow the temperature of the instrument to

.

The instrument continues to draw power when it is plugged into the

ac power source even if the line power switch is o.

2 Disk drive

reads from or writes to a 3.5 inch oppy disk in

MS-DOS or LIF format (initialized LIF disk is not 1.44 MByte).

3 DEMODulation

turning the demodulator on and o, a

control block includes an

4

SELECT

4

ON/OFF

5

5

key to directly

key for

access the softkey menus that select AM or FM demodulation,

FM gain, dwell time and squelch levels, a volume control knob,

and a headphone jack.

Getting Started 1-3

4

Softkey labels

are displayed on the screen next to the softkeys.

Most of the labeled keys on the front panel of the receiver (also

called front-panel keys) access menus of related softkeys.

5 Softkeys

are the unlabeled keys next to the screen that

activate the functions listed in the softkey menus.

6 WINDOWS

display mode,

4

ZOOM

7

4

FREQUENCY

keys including

4

5

NEXT

5

for controlling the zone span and center frequency.

5,4

SPAN

5

,and

4

for switching between windows and

4

AMPLITUDE

dark-gray keys that activate primary receiver functions and

access the menus of related functions.

8 MEASUREMENT

control block includes the three main keys

used to make EMI measurements.The

softkey functions that control the receiver settings to be used in

a measurement, such as frequency range, antenna correction

factors, and limit lines.The

measuring

The

4

graphical

9

MARKER

and

amplitudes

signals and manipulating lists of measured signals.

5

key

OUTPUT

and

provides

tabular

data output.

functions control the markers, read out frequencies

along the receiver trace, automatically locate

the signals of highest amplitude, and keep a signal at the

marker position in the center of the screen.

10 MEASUREMENT CONTROL

menus and self-calibration routines.

5

to turn on the windows

CTRL

5

are the three large

4

5

key accesses

4

TEST

SETUP

5

key provides control for

access to the report generator for

functions access special-function

Note

11 ANALYSIS CONTROL

the

12

resolution

manipulate

CTRL

green

and

functions

4

PRESET

4

RECALL

bandwidth,

trace

aect

5

key resets the receiver to a known state.

5

keys save and recall traces, states, limit-line tables,

functions access menus that adjust

data,

and

the

adjust

state

control

of

the

the

the

sweep

time

instrument

entire

,

store

display

receiver. The

and amplitude-correction factors to or from a oppy disk or

receiver memory.

4

TRACK GEN

5

accesses the softkey menus that control the built-in

tracking generator.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

4

5

COPY

or

4

COPY

Receiver Series Reference

prints or plots screen data. Use

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Print Config

5

. Refer to descriptions for these softkeys in the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

,and

COPY DEV PRNT PLT

manual for more detailed information.

4

CONFIG

5

,

Plot Config

before using

If you wish to reset the instrument conguration to the state

it was in when it was originally shipped from the factory, use

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DEFAULT CONFIG

in the

EMI Receiver Series Reference

. Refer to the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DEFAULT CONFIG

softkey description

manual for more information.

and

EMI

.

4

SAVE

5

1-4 Getting Started

13

ST

A

TE

functions control features that aect the overall

14

instrument

(receiver

and

instrument

D

A

TA

state

such

as single sweep, instrument mode

or

signal

analysis), user menus, FFT measurements,

conguration.

entries allow you to change the numeric value of an

active function and can be made by using the numeric keypad,

knob, or step keys.

CAUTION

15 RF INPUT

is the signal input for the receiver RF section.

Excessive signal input will damage the receiver input attenuator and

input

mixer

.

Use

high-power

the

receiver

RF

can

extreme

sources

tolerate

caution

and

transmitters

appears

when

on

using the receiver around

.

The

maximum input power

the

front panel and should not be

exceeded.

Excessive

EXCEED

dc

voltage

the

maximum

can

also

damage

the

input attenuator. DO NOT

dc voltage specied on the receiver front

panel (underneath the RF INPUT connector).

16

PROBE

or

17 RF OUT

POWER

other

accessories (+15 VDC and012.6 VDC).

provides power for high-impedance ac probes

provides a ltered input signal for the receiver RF

section. Normally, the RF OUTPUT is connected to the receiver

RF section RF INPUT.

18 INPUT 2

is a signal input for the receiver that sweeps from

20 MHz to 2.9 GHz, from 1 GHz to 6.5 GHz (for an HP 8546A

19

only),

ALC

leveling

lter

performing

or

the

INPUT

circuitry

section.

full

band

provides

in

the

The

receiver

instrument

(in

bypass

a

connection

receiver

uses

calibration.

mode).

to

RF

section

the

tracking

the

tracking

from

generator

generator

the RF

for

20 ALC

provides a connection to the tracking generator leveling

circuitry in the receiver RF section from the RF lter section.

21 RF OVERLOAD LED

lights up when an RF overload condition

is detected. The LED is turned o when the signal amplitude

is reduced or eliminated. This can be done by adding RF

attenuation or ltering.

22 300 MHz

is the calibration signal input from the receiver RF

section.

23 300 MHz OUTPUT

provides the 300 MHz calibration signal for

the RF lter section.

24 INPUT 1

is a signal input to the receiver. The frequency range

of INPUT 1 is 9 kHz to 50 MHz.

25 TRACKING GENERATOR

is a signal input for the tracking

generator output of the receiver RF section.

26 TRACKING GENERATOR OUTPUT

provides the built-in

tracking generator output from the receiver RF section.

Getting Started 1-5

27

TRACKING GENERATOR OUTPUT

provides the built-in

tracking generator output from the EMI receiver.

Data Controls

Note

28 ERROR

LED lights when an improper command is sent to the

RF lter section from the receiver RF section.

Data controls are used to change values for functions such as center

frequency, marker position, and sweep time.

The data controls will change the active function in a manner

prescribed by that function. For example, you can change center

frequency in ne steps with the knob, in discrete steps with the step

keys, or to an exact value with the number/units keypad.

Number/Units Keypad

The number/units keypad allows entry of exact values for many

of the receiver functions.You may include a decimal point in the

number portion. If not, the decimal point is placed at the end of the

number.

Numeric

change

F

or

and

4mV5

If

an

allowed

the

entries

the

example

5

4

,

whereas

Hz

, and

4



entry

function

receiver

active

,

the

5

.

V

from

defaults

must

be

function

units

keys for frequency span are

the

units

the

number/units

value

(for

to

terminated

in

a

for

with

a

manner

prescribed by that function.

reference level are

keypad

example

the

nearest allowable value.

, that of a 12 MHz bandwidth),

units key. The units keys

does

not

5

4

GHz

4

+dB



coincide

5

,

V

4

5

MHz

,

4

,

4

kHz

0

dB



with

5

V

an

5

,

,

Note

Knob

The knob allows continuous change of functions such as center

frequency, reference level, and marker position. It also changes the

values of many functions that only change in increments. Clockwise

rotation of the knob increases values.For continuous changes,the

extent of alteration is determined by the size of the measurement

range; the speed at which the knob is turned does not aect the rate

at

which

the

values are changed.

The knob enables you to change the center frequency, start or stop

frequency, or reference level in smooth scrolling action. The smooth

scrolling feature is designed to move the trace display to the latest

function value as the knob is turned. When either center frequency

or reference level is adjusted, the signal will shift right or left or

up or down with the rotation of the knob before a new sweep is

actually taken. An asterisk is placed in the message block (the upper

right-hand corner of the receiver display) to indicate that the data

onscreen does not reect the data at the current setting.

When using the knob to change frequency or amplitude settings,

the trace data is shifted. Therefore, when using

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MAX HOLD B

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

,or

MIN HOLD C

, moving the center frequency with the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MAX HOLD A

,

knob will not simulate a drifting signal.

1-6 Getting Started

Rear-Panel Features

Step Keys

The step keys allow discrete increases or decreases of the active

function value. The step size depends upon the measurement range or

on a preset amount. Each press results in a single step change.For

those parameters with xed values, the next value in a sequence is

selected each time a step key is pressed. Changes are consistant and

can be set for some functions. Out-of-range values or out-of-sequence

values will not occur when using these keys.

HOLD Key

The

HOLD

the

4

(ENTER)

or as a softkey in the

key

deactivates

5

key in the data entry area on the receiver front panel

4

DISPLAY

functions

5

.

This

key

is

designated as either

menu. The active function readout is

blanked, indicating no entry will be made inadvertently when using

the knob,stepkeys, or numeric keypad. Pressing a function key

reenables the data controls.

Figure 1-3. Rear-Panel Feature Overview

The following section provides a brief description of rear-panel

features. Refer to Figure 1-3.

Getting Started 1-7

1

AUX VIDEO

provides detected video output (before

analog-to-digital conversion) proportional to vertical deection

of the trace. Output is from 0 V to 1 V.

Note

Amplitude-correction factors are not applied to the video output

signal.

2 EXT TRIG

accepts the positive edge of an external voltage

input to trigger the receiver's internal sweep source.

3 AUX IF

is the 50, 21.4 MHz IF output signal down-converted

from the RF input of the instrument. Amplitude-correction

factors are not applied to this signal.

4 GATE TRIGGER INPUT

5 10MHz REF OUTPUT

is not available.

provides a 10 MHz, 0 dBm minimum,

time-based reference signal. This output is normally connected

to

EXT

REF

IN.

6

EXT

REF IN

the

10

MHz,

the

instrument.

7 GATE OUTPUT

8 LO OUTPUT

accepts an external frequency source to provide

0

2

dBm to +10 dBm frequency reference used by

is not available.

provides the output of the rst LO, which is

proportional to the frequency that the receiver is tuned to. This

output is normally terminated with an attached load.

9

A

UX

INTERF

connector

HP

85460A)

for

A

CE

control

via

the

provides

of

external

HP

85462A.

a

nine-pin

\D"

devices

subminiature

(for

example

,

CAUTION

Turn o the receiver before connecting the AUX INTERFACE

connector to a device.Failure to do so may result in loss of

factory-correction constants.

Do not exceed the current limits for the +5 V supply when using

the AUX INTERFACE connector. Exceeding the current limits may

result in loss of factory-correction constants.

Do not use the AUX INTERFACE as a video monitor interface.

Damage to the video monitor will result.

10 VOLTAGE SELECTOR

adapts the receiver RF section to the

power source: 115 V or 230 V.

11 Power input

is the input for the line power source. Make

sure that the line-power source outlet has a protective ground

contact. Refer to the

Verication Manual

EMI Receiver Series Installation and

for instructions on selecting the correct

setting.

12 DISPLAY VIDEO OUT

connectors provide access for an

external monitor (B,G, R, and SYNC).

13 SWEEP RAMP

provides a voltage ramp proportional to the

sweep and the receiver span (0 V to 10 V).

1-8 Getting Started

14 HIGH SWEEP

provides a voltage that indicates when the

receiver is sweeping. This connection can also be grounded to

stop sweeping.

15 HIGH SWEEP

receives sweep control from the receiver RF

section when congured as an EMI receiver.

16 SWEEP RAMP

receives a voltage ramp from the receiver RF

section when congured as an EMI receiver.

17 ADDRESS switches

set the address of the service bus to allow

communication between the RF lter section and an external

computer via the receiver RF section, or the service-bus

connector

can

procedures

V

erication

18

A

UX

connector

19 SERVICE BUS

also

be

INTERF

on

the

used

.

Refer

Manual

A

for

control

receiver

to

to

CE

provides

initiate

the

for

from

RF

section.

internal

EMI

R

eceiver

detailed

a

nine-pin \D" subminiature

Specic

diagnostic

Series Installation and

information

the receiver RF section.

switch

service

on

switch

connector is an HP-IB connector that allows an

external computer to communicate with the RF lter section to

perform service and diagnostic tests only.

20

LINE

21

SERVICE

of

the

RF

receiver

service

LINE

V

power

V

source

erication

lter

operation;

and

OL

T

SWITCH

section.

TEST

diagnostic

A

GE

SELECTOR

. Refer to the

Manual

for instructions on selecting the correct

turns

on

and

o

the

operating

NORMAL

mode

tests

via

adapts

mode

is

selected

the

is

selected

when

performing

SERVICE

the

BUS.

RF lter section to the

EMI Receiver Series Installation and

setting.

settings

for

settings.

mode

EMI

CAUTION

22

LINE

power module is the input for the line power source.

Make

sure that the line-power source outlet has a protective

ground contact. The primary line-power fuse is also located in

this module.

23 Interface connector

is an optional interface for either HP-IB

(standard) or RS-232 (Option 023) interface buses that supports

remote instrument operation and direct plotting or printing of

screen data.

24 EXT KEYBO

C1405A, option AB

receiver. The keyboard can be used to enter screen titles

prexes, remote commands

ARD

connector

is used to connect a VECTRA

A keyboard with a DIN-style plug to the

, and report annotation.

,

Turn o the receiver before connecting an external keyboard to the

receiver.F

ailure to do so may result in loss of factory calibration

data.

Static discharges of greater than 3 kV to metallic portions of the

connector housing on the keyboard during operation may cause the

instrument to reset.

Getting Started 1-9

Screen

Annotation

The

following

may

be

display

using

displayed

in

normal

windows.

two

when

operating

gures

indicate

using

mode

the primary annotation areas that

your receiver. Figure 1-4 shows the

. Figure 1-5 shows the display when

1-10 Getting Started

Figure 1-4. EMC Screen Annotation, Normal Operating Mode

4

5

activates the windows display mode and splits the screen into

CTRL

two separate displays|the top, overview window and the bottom,

applications window. Only one window is active at a time. The active

window is selected by toggling the

front-panel keys).

4

NEXT

5

key (under the WINDOWS

Receiver RF Section Annotation

The instrument preset conditions used in this manual are those of

an HP 8542E or an HP 8546A EMI receiver. When using either an

HP 85422E or an HP 85462A receiver RF section, operators will note

discrepancies in reference level and sweep time when comparing

the illustrations given in this manual to the displays presented on

the instrument screen. These discrepancies are due to hardware

dierences between the two congurations.

Figure 1-5. EMC Screen Annotation Using Windows

Getting Started 1-11

Menu and Softkey Overview

The

keys

of

front-panel

functions

These menus are called softkey menus.

Softkey menus list functions other than those accessed directly by

the front-panel keys.To activate a function on the softkey menu,

press the unlabeled key immediately to the right of the annotation on

the screen. The unlabeled keys next to the annotation on the display

screen are called softkeys.

Throughout this manual front-panel keys are indicated by a box

around the key label, for example,

by shading on the key label, for example,

displayed depend on the front-panel key pressed and which menu

level is selected.

If

a softkey function's value can be changed, it is called an active

function.

display in inverse video.For example, if you press

softkey menu of related amplitude functions is displayed. Note the

function labeled

\

REF

LVL

indicating

using

any

labeled SETUP, FREQUENCY, and MKR are all examples

keys. Pressing most front-panel keys access menus of

that

are displayed along the right side of the display screen.

4

AMPLITUDE

The

function label of the active function appears on the

N

N

N

NNNNNNNNNNNNNNNNNNNN

"

also

it

of

appears

is

the

the

REF LVL

active

data

appears in inverse video. The message

in

the

amplitude

controls

active

.

function

function

5

; softkeys are indicated

NNNNNNNNNNNNNNNNNNNNNNN

REF LVL

and

. The softkeys

4

AMPLITUDE

block

on

can

the

be

changed

5

display

the

,

A

softkey

softkey's

softkey

softkey

will

A

function

so

so

be

indicated

with

ON

and

OFF

in its label can be used to turn the

function

that

that

on

or

o.

T

o turn the function on, press the

ON

is

OFF

underlined.

is

underlined.

To turn the function o, press the

An ON or OFF softkey function

throughout this manual as:

N

N

N

N

N

N

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ANTENNA

with AUTO and MAN in the label can either be

ON

OFF

ON.

auto-coupled or have its value manually changed. The function's

value can be changed manually by pressing the softkey until

MAN is underlined, and then changing its value with the numeric

keypad, knob, or step keys.To set the function so that it operates

automatically, press the softkey so that AUTO is underlined. An AUTO

or MAN softkey function will be indicated throughout this manual as:

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ATTEN AUTO MAN

AUTO.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

When some softkeys

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SRC ATN MAN AUTO

, such as

, are pressed the rst time, only the function will

SCR PWR ON OFF

and

be highlighted. To change the value of the function use the numeric

keys, step keys or knob. When entering a value with the numeric

keys, the entry must be terminated by pressing one of the units keys,

such as

4dB5or4

5

. When adjusting the value using the step keys or

dBV

knob the units are entered automatically by the receiver. When you

are nished entering or adjusting the value, press the softkey again to

highlight the on and o or auto and manual functions.

1-12 Getting Started

A summary of all front-panel keys and softkeys can be found in

Chapter 3, \Key Dictionary Reference," of the

Reference

manual.

EMI Receiver Series

Disk

Drive

The

disk

available

disk

in

drive

for

reading

MS-DOS

on

or

the

front panel of the receiver RF section is

from

or

writing to a 1.44 MByte, 3.5 inch oppy

LIF

format.

Note

Only double-sided disks may be used.

The following tasks may be performed using the disk drive:

F

ormat

Create

Dierentiate

Save

Save

quasi-peak,

Save

a

disk.

a

le

.

between

and

recall

instrument

and

recall lists of signal data, including frequency and peak,

and

and

recall limit lines.

the

dierent

setups

.

average amplitudes.

types

of

les when cataloged.

Save and recall amplitude correction factors.

Save

and

recall

Save

bitmap

instrument

les

(images)

traces

of

display

.

graphics

.

Getting Started 1-13

Receiver RF Section Battery Information

The

receiver

receiver

installed

Figure 1-6.)

The minimum life expectancy of the battery is 8 years at 25C, or

1yearat55C. If you experience problems with the battery or the

recommended time period for battery replacement has elapsed, see

\Returning the EMI Receiver for Service" in the

Installation and Verication

If you wish to replace the battery yourself, you can purchase

the service documentation that provides all necessary test and

maintenance information. The battery is soldered onto the receiver's

processor board. Service documentation may be ordered through your

HP sales and service oce.

After replacing the battery, write the date of battery replacement on

the

rear-panel

RF section uses a 3.6 V lithium battery to enable the

memory

is

to retain data. The date when the battery was

on a label on the rear panel of the instrument. (See

label.

EMI Receiver Series

manual.

Figure 1-6. Rear-Panel Battery Information Label

1-14 Getting Started

Calibration

What You'll Learn in this Chapter

This chapter describes procedures for calibrating the HP 8542E/

HP 8546A EMI receiver and the HP 85422E/HP 85462A receiver RF

section. In this chapter you will:

Calibrate the EMI receiver.

Set the receiver clock.

Set the AutoCal time.

Perform the tracking generator self-calibration.

Perform the YTF self-calibration. (HP 8546A or HP 85462A only.)

Calibrate the receiver RF section.

2

Improving Accuracy

Data from the self-calibration routine is necessary for receiver

operation.

receiver

frequency and amplitude accuracy. Press the

the Self-Calibration Routine menus. The last softkey on this menu,

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

More 1 of 3

The

self-calibration

Regularly

is

using

executing

current

the

calibration

self-calibration

data.

This

improves

4

CALIBRATE

routine

5

the

key to view

, provides access to additional self-calibration functions.

routines

provide

correction

factors

for

ensures

receiver's

internal

the

circuitry. The application of the correction factors is required to meet

frequency and amplitude specications. When the correction factors

are applied to internal circuitry the message \

CORR

" (corrected) is

displayed on the left side of the screen.

The

EMI

receiver calibration consists of two parts.

An

receiver

RF section frequency and amplitude calibration

An RF lter section amplitude calibration

The receiver RF section frequency and amplitude calibration adjusts

the frequency, sweep time, and span accuracy. It also adjusts

bandwidth, switching between log and linear paths, IF gains,IF

centering, RF attenuation, and the log amplier.

The RF lter section amplitude calibration automatically adjusts

amplitude levels to be within the calibration limits for the EMI

receiver.

Calibration 2-1

When is Self-Calibration Needed?

The following guidelines are intended to help you decide when to use

the self-calibration features.Your specic measurement needs will

determine your exact requirements.

Perform the frequency and amplitude self-calibration routines

whenever the instrument experiences signicant environmental

changes

(which

important

were

last

If

the

environment),

all

receiver calibration procedures

conditions

T

o achieve optimal amplitude accuracy for relative measurements:

Keep the receiver in a stable environment.

such

as

temperature

may

occur

if

the

frequency

performed

environment

calibrate the receiver daily. Be sure to perform

are met.

during

in

is

relatively



C),

(

6

shipping

and

amplitude

a

dierent environment.

humidity

5

or

transport). This is particularly

self-calibration routines

stable (for example, a laboratory

after

operating temperature

,

shock,

or

vibration

Warm-Up Time

Retrieve

beginning

data

drift

the

prior

is

normally

the

to

stored

rst

measurement.

making

less

calibration

subsequent

than

the calibration uncertainty.)

data

from

memory before

Do

not

retrieve the calibration

measurements. (The amplitude

Keep the receiver turned on between measurements.

If the input signal for EXT REF IN changes, run the frequency

and amplitude self-calibration routines. Amplitude calibration is

required to improve IF centering.

If

accurate

self-calibration

is

temporarily

needed

in

a

dierent

environment, calibrate the receiver RF section, but do not store the

calibration data. The temporary correction factors will be used until

the receiver is turned o, or until the calibration data is retrieved

from memory.

F

or

an

HP

8546A/HP 85462A only.

If

preselector

amplitude

peaking

when

has more than a 2-db eect on the signal

using

single-band sweep mode above 2.9 GHz,

perform the YTF self-calibration routine and then store the data.

The YTF self-calibration routine improves the preselector default

values.

A one hour warm-up period is necessary after the receiver is turned

on to ensure the receiver meets its specications

.

2-2 Calibration

Note

Be sure to perform all receiver calibration procedures

temperature conditions are met.

after

operating