Sencore CB42 User Manual

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12. Switch

the

RF_IF CONTROL

to

AM.

13. With

the

receiver', ANL and AI'IB ....it.eMt Ilill

turned

off.

tum

on

the

NL204

and

increue

ita

output

until

the

peak_to·peak Ievft

of

the

noile

pu1lel dilplayed

on the

&COpe

an!

the

lime

u

the

refueoot

in

Step

11.

14.

Tum

the

receiver',

ANL

andJor ANB ,witches

on.

Repeat

the

receiver

&eni.itiYity test_

NOTE:

The

lIPount

of

5igD:al

needed

to

AM

& SSB

TRANSMmER

TESTS

The

CB42 is equipped to perfOl'm

aU

tf1lJlsmitter leIta

recommended

by

IeIIdinll

CB

manufacturers.

The

followinll il\ltructlolUl, plUi th05e

testa

dilC\lNed

In

the Openotion lledion

of

this manual, lli

..

e ltep-by-

•

tep

lrutructionl

ror performing these

testa.

If

the

manufacturer'.

in.tructions

differ from these pro·

cedures.

the

manufacturer'.

litenoture should be

followed.

AM

TRANSMITTER FREQUENCY

The

tranllllitter frequency

may

be

monitored

in

either

of

two

wayJ-direct frequency

readout,

or

u a

SS8

TRANSMITTER FREQUENCY

reIIcb

the

10

dB IelUitivity

point

should

be

greater

than

in

Step

10.

15.

U5Ul1l

the

formula

dB-20

Let;

..!L

Clllculate

10

E •

2

the

dB ratio

of

the

two

input

..

oltllp

found in

Stepi

10

and

H.

A dB

COI'Iversion

ebart

is

found

in

the

bK);

of

the

CB42 Speed Test

Setup

Boo);_

Ie

•.

The

EIA

JPecif"K:i.UoIU

Ute

that

this ratio

mould

be

equal

to

or

1ess

than

3 dB notio

bet1ll"~n

the

wMi-

tivity

figure found

in

StepI

10

and

14.

WARNING:

FCC

"-10101_

_

....,

.....

lA

.....

Of

-"

•

....,

..........

_

"'""

_

""

I

.liD"

........

110

.......

by. lA _

Il1O

1_10

..

-'_

of,

__

-...

•

f

....

·

Of

S-et-ao

..

Coo,."

......

R Ii

..

Iqlhcw

..

Uconoo.

ISM

FCC

l1oi

...

_ R

.......

_ f'ot1 ".117.1

percent

all

channel.

Both

of

theoe testa are described

in

the

general operatinll

inltruction

•.

j

..

I j

::11.-0'

bnn

CU.IO

UU'

o 0 0 0 0

-,

-

I II I

OICiTaL

lI.f.aOOUT

alUCTOlII

.UDIC

OUTPUl

o

.NaUIING

OUll>UT

IION.la

-

lr'*

Olonal

IIlaOOUl

I_Ul

al0NaLa

,o':llr.'"

Fig.

44-contro/

~tup

for

mellwrllll

SSB

trruwnittltf

freqlM!ncy.

Table of Contents

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Sencore CB42 Specifications

General

Brand	Sencore
Model	CB42
Category	Measuring Instruments
Language	English

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