Tektronix 492 Service manual

Tektronix

Inc.

P.O.

Box

500

Beaverton

Oregon

97077

070-2729-00

Tektronix

COMMITTED

EXCELLENCE

Serial

Number

492

OPERATORS

HANDBOOK

First

Printing

MAR

1980

WARRANTY

Tektronix

warrants

that

this

product

free

from

defects

materials

and

workmanship

The

warranty

period

one

(

)

year

from

the

date

shipment

Tektronix

will

its

option

repair

replace

the

product

Tektronix

determines

defective

within

the

warranty

period

and

returned

freight

prepaid

service

center

designated

Tektronix

not

obligated

furnish

service

under

this

warranty

repair

damage

resulting

from

attempts

personnel

other

than

Tektronix

representatives

install

repair

service

the

product

;

repair

damage

resulting

from

improper

use

from

connecting

the

product

incompatible

equipment

;

personnel

other

than

Tektronix

representatives

modify

the

hardware

software

There

implied

warranty

fitness

for

particular

purpose

Tektronix

not

liable

for

consequential

damages

1980

Tektronix

Inc.

All

rights

reserved

Contents

this

publication

may

not

reproduced

any

form

without

the

written

permission

Tektronix

Inc.

Products

Tektronix

Inc.

and

its

subsidiaries

are

covered

U.S.

and

foreign

patents

and

pending

patents

TEKTRONIX

TEK

SCOPE

MOBILE

and

Tektronix

Inc.

Printed

U.S.A.

Specification

and

price

change

privileges

are

reserved

TEKTRONIK

are

registered

trademarks

Section

DESCRIPTION

AND

SPECIFICATION

TABLE

CONTENTS

PRODUCT

DESCRIPTION

Specification

Summary

OPERATION

PREPARATION

FOR

USE

Power

Source

and

Power

Requirements

...

Controls

Connectors

and

Indicators

Initial

Turn

Calibrate

Center

Frequency

Readout

Page

1-1

2-1

2-2

2-14

2-16

Calibrate

Reference

Level

and

Dynamic

Range

2-16

Check

Span

Accuracy

and

Linearity

2-17

Section

492

Operator's

Handbook

GENERAL

OPERATING

INFORMATION

Page

3-1

SIGNAL

APPLICATION

Input

Connector

Resolution

Bandwidth

Frequency

Span

and

Sweep

Time

Using

the

PEAKING

Control

Using

the

Signal

Identifier

...

Using

the

Video

Filters

Time

Domain

Operation

Triggering

the

Display

Sweeping

the

Display

Manual

Scan

the

Spectrum

Reference

Level

Attenuation

and

Vertical

Display

3-6

Delta

Mode

. .

3-7

MIN

NOISE

MIN

DISTORTION

3-8

Digital

Storage

(

Option

)

3-8

3-2

3-3

3-4

3-6

OPERATORS

SAFETY

SUMMARY

The

general

safety

information

this

part

the

summary

for

both

operating

and

servicing

personnel

Specific

warnings

and

cautions

will

found

throughout

the

manual

where

they

apply

but

may

not

appear

this

summary

TERMS

This

Manual

CAUTION

statements

identify

conditions

practices

that

could

result

damage

the

equipment

other

property

WARNING

statements

identify

conditions

practices

that

could

result

personal

injury

loss

life

Marked

Equipment

CAUTION

indicates

personal

injury

hazard

not

mediately

accessible

one

reads

the

marking

hazard

property

including

the

equipment

itself

DANGER

indicates

personal

injury

hazard

immediately

accessible

one

reads

the

marking

This

Manual

SYMBOLS

This

symbol

indicates

where

applicable

cautionary

other

information

found

Marked

Equipment

492

Operator's

Handbook

DANGER

High

voltage

Protective

ground

(

earth

)

terminal

ATTENTION

refer

manual

Power

Source

This

product

intended

operate

from

power

source

that

will

not

apply

than

250

volts

rms

between

the

supply

conductors

between

either

supply

conductor

and

ground

protective

ground

connection

way

the

grounding

conductor

the

power

cord

essential

for

safe

operation

Grounding

the

Product

This

product

grounded

through

the

grounding

conduc

tor

the

power

cord

avoid

electrical

shock

plug

the

power

cord

into

properly

wired

receptacle

before

connecting

the

product

input

output

terminals

protective

ground

connection

way

the

grounding

conductor

the

power

cord

essential

for

safe

opera

tion

Danger

Arising

From

Loss

Ground

Upon

loss

the

protective

ground

connection

all

accessible

conductive

parts

(

including

knobs

and

con

trols

that

may

appear

insulating

)

can

render

electric

shock

Use

the

Proper

Power

Cord

Use

only

the

power

cord

and

connector

specified

for

your

product

Use

only

power

cord

that

good

condition

For

detailed

information

power

cords

and

connectors

see

492

Service

Vol

Refer

cord

and

connector

changes

qualified

service

personnel

Use

the

Proper

Fuse

avoid

fire

hazard

use

only

the

fuse

correct

type

voltage

rating

and

current

rating

specified

the

parts

list

for

your

product

Refer

fuse

replacement

qualified

service

personnel

Not

Operate

Explosive

Atmospheres

avoid

explosion

not

operate

this

product

explosive

atmosphere

unless

has

been

specifically

certified

for

such

operation

Not

Remove

Covers

Panels

avoid

personal

injury

not

remove

the

product

covers

panels

not

operate

the

product

without

the

covers

and

panels

properly

installed

492

Operator's

Handbook

iii

INTENTS

ܘܐ

TROGERING

POOD

HANDY

112

TIME

DIV

MEFLENIE

VERT

PLAY

WATTES

saxl

RESOLUTION

BANDING

Tektronix

FREQUENCY

(

)

Loc

FREQUENCY

RESOLUTION

SPANDIV

REFERENCE

MIN

RFATTEN

492

Spectrum

Analyzer

492

ANALYZE

492

Operator's

Handbook

2729-1

SECTION

DESCRIPTION

AND

SPECIFICATION

PRODUCT

DESCRIPTION

The

492

Spectrum

Analyzer

high

performance

compact

portable

spectrum

analyzer

that

displays

solute

amplitude

and

frequency

information

signals

within

the

frequency

spectrum

kHz

GHz

with

the

internal

coaxial

mixer

and

GHz

with

optional

external

TEKTRONIX

High

Performance

Waveguide

Mix

ers

The

8.4

10.2

crt

face

reads

out

all

major

display

parameters

SPECIFICATION

SUMMARY

Complete

instrument

specifications

can

found

the

492

Operator's

Manual

These

specifications

apply

ambient

temperature

after

hour

warm

period

492

Operator's

Handbook

1-1

Frequency

Specifications

Center

frequency

range

INPUT

Center

frequency

readout

accuracy

Frequency

drift

Amplitude

Specifications

Frequency

response

and

sensitivity

Frequency

Range

100

kHz

4.1

GHz

without

option

1-2

100

kHz

1.8

GHz

with

option

1.7-5.5

GHz

3.0

7.1

GHz

5.4-18.0

GHa

15.0-21.0

GHz

derate

for

option

badd

-10

for

option

100

kHz

GHz

(

usable

GHz

)

Within

(

MHz

span

div

)

within

(

0.2

the

center

frequency

the

span

div

)

whichever

greater

200

kHz

hour

Frequency

Response

within

1.5

within

1.5

within

1.5

dBª

within

1.5

dBª

within

2.5

dBª

within

3.5

dBª

492

Operator's

Handbook

Sensitivity

kHz

Bandwidth

-115

dBm

-110

dBm

-115

dBm

-115

dBmb

-100

dBmb

-95

dBmb

Signal

Level

Accuracy

Signal

levels

are

measured

after

the

instrument

calibrated

the

100

MHz

calibrator

signal

Sources

error

signal

level

measurement

are

shown

below

and

are

worst

case

for

Celsius

operation

The

sources

errors

that

are

actually

encountered

will

depend

upon

signal

frequency

level

and

measurement

technique

Calibrator

Attenuator

Flatness

Band

switching

Resolution

bandwidth

switching

gain

Display

and

log

within

0.3

maximum

within

1.4

maximum

typically

greater

than

the

frequency

response

within

with

internal

mixer

within

0.5

maximum

within

2.0

maximum

within

2.0

maximum

Spurious

Response

Specification

Residual

(

signals

present

with

input

)

Harmonics

input

signal

Harmonic

input

signal

with

option

1.7-18

GHz

-100

dBm

referred

mixer

input

for

fundamental

mixing

down

for

-30

dBm

signal

100

down

for

full

screen

signal

(

MIN

DISTORTION

mode

)

492

Operator's

Handbook

1-3

Third

order

intermodulation

distortion

kHz

GHz

Third

order

intermodulation

distortion

with

option

1.7-18

GHz

INPUT

Specifications

Maximum

input

level

Input

VSWR

compression

point

without

option

with

option

kHz

1.7

GHz

with

option

1.7-2.0

GHz

with

option

1.8-18

GHz

L.O.

emmission

without

option

with

option

1-4

least

down

from

any

two

screen

signals

within

any

frequency

span

-30

dBm

inputs

100

down

for

two

inputs

100

MHz

minimum

separation

+30

dBm

(

attenuation

)

+13

dBm

(

attenuation

)

better

than

1.45

with

attenuation

-10

dBm

(

attenuation

)

-10

dBm

(

attenuation

)

-28

dBm

(

attenuation

)

-10

dBm

(

attenuation

)

-10

dBm

(

attenuation

)

-70

dBm

(

attenuation

)

492

Operator's

Handbook

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