Wavetek 132 Spezifikationen PDF herunterladen (Seite 67)

Parti:

Amplitude

Modulation

(AM)

Generation

and

Detection

a)

Turn

on

the

power

to

the

RAPIDS

system

and

configure

it

as

follows:

TIME/DIV:

lOOus

A

=

500mV/div

B

=

500mV/div

TRIGGER:

Normal

VIEWTIME:

0.0s

DISPLAY

TYPE:

Variable

Compressed

b)

Connect

the

Wavetek

132

to

DOP

channel

A

and

configure

it

to

produce

a

1

V

peak-

to-peak

(pp),

1kHz

square

wave.

Ensure

there

is

no

DC

offset

by

adjusting

the

DC

offset

switch

on

the

back

of

the

Wavetek

132.

This

will

be

your

message

signal.

Connect

the

output

of

the

Wavetek

186

to

channel

B

and

configure

it

to

produce

a

2

V

pp,

20

kHz

sine

wave.

This

is

your

carrier

signal.

Adjust

the

Wavetek

186

to

the

following

settings:

Waveform:

sinusoid

norm

Gen

mode:

cont

symmetry:

norm

(no

offset)

atten:

0

dB

c)

Split

the

message

signal

at

the

Wavetek

132

so

the

output

connects

to

channel

A

and

VCA

IN

on

the

Wavetek

186.

Your

configuration

should

now

look

like

Figure

1.

Lab

3

Page

2

57

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