Uniden PRESIDENT JACKSON User manual

Table of contents

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Service

Manual

CB

TRANSCEIVER

Model

JACKSON

UT-547C/D

NN

thanks

Homer

യുട

uniderne

CORPORATION

TABLE

OF

CONTENTS

SPECIFICATIONS

INSTALLATION

GENERAL

INFORMATION

=

OPERATING

CONTROLS

ALIGNMENT

PROCEDURES

FREQUENCIES

2)

|

BLOCK

DIAGRAM

SCHEMATIC

DIAGRAMS/WIRING

DIAGRAM/PC

BOARD

1.

E12-2108

:

SCHEMATIC

DIAGRAM

2.

E12-2108

:

REVISED

I

3.

E22-4674

:

MAIN

PCB

PARTS

ASSEMBLY

TOP

VIEW

#<z—4674

4.

E32-2212

:

WIRING

DIAGRAM

BILL

OF

MATERIAL

:

25

P.S

A.

SPECIFICATIONS

1.

GENERAL

Channel

and

Frequency

Range

Crystals

Microphone

Speaker

Antenna

Connector

Jacks

&

Connectors

Controls

Meter

Illumination

Size

Weight

Accessories

MEASUREMENT

CONDITIONS

a)

Power

Source

b)

Antenna

Impedance

c)

Test

Temperature

d)

AM

Modulation

Frequency

e)

FM

Modulation

Frequency

f)

SSB

Modulation

Frequency,

Two

Tone

g)

Mean

Signal

Input

Level

h)

Reference

AM

Modulation

Percentage

se

226

A

Band

26.065

—

26.505

MHz

B

Band

26.515

—

26.955

MHz

C

Band

26.965

—

27.405

MHz

D

Band

27.415

—

27.855

MHz

E

Band

27.865

—

28.315

MHz

3

600

ohms,

Dvnamic

Tvpe

8

ohms,

З

W

М

Туре

i

Mic

4P

EXT.

SP

-3.59

PA.

SP

-3.59

DC

Power

-ЗР

Channel

Selector,

Mode

Selector

|

FM-AM-USB-LSB,

Mic

Gain,

ON/OFF

Power

Switch

&

Volume,

ON/OFF

PA

Switch

&

Squelch,

RF

Gain,

Coarse,

Fine,

Band

Selector

A-B-C-D-E,

Noise

Blanker/

ANL

Switch,

Roger

Beep

Switch,

S/RF-Mod

Switch

and

+10

kHz

—

Normal

Switch

RF

Output

Power,

Signal

Strength

and

Modulation

Channel

Number

Indication

(LED)

RX,

TX

Indication

(LED),

Meter

Lamp

7.784"(W)

X

2.36"(H)

X

11.22"(D)

5

Pounds

(2.2

kgs)

DC

Power

Cable

with

Built-in

Fuse,

Microphone

and

Microphone

Hanger

13.8

V

(DC)

50

ohms

25

XC

1

kHz

1

kHz

500

Hz

$

2.400

Hz

1.000

uV

1

kHz

30%

1)

Reference

FM

Deviation

3)

Reference

Audio

Output

Power

k)

Audio

Frequency

1)

Audio

Output

Load

TRANSMITTER

a)

Frequency

Tolerance

at

25

%

(5

Minutes

after

Switch

on)

b)

Carrier

Power

c)

PEP

Power,

Two

Tone,

SSB

d)

Spurious

&

Harmonic

Emission

e)

Carrier

Suppression

f)

Unwanted

Sideband

Suppression

(at

2.500

Hz

4

Мрер

16

dB

Single

tone)-

g)

Battery

Drain

at

no

Modulation

h)

Battery

Drain

Am

:

MAX

Modulation

SSB:

MAX

Wpep,

Two

Tone

FM

:

MAX

Modulation

i)

Modulation

Frequency

Response

(1

kHz,

OdB

reference)

Lówer

at

450

Hz

Lower

at

2.5

kHz

j)

Microphone

Sensitivity

AM

:

For

50%

Modulation

SSB:

For

10

Wpep

Outpüt

FM

:

For

1

kHz

Deviation

k)

AMC

Range

AM

:

50

—

100%

Modulation

SSB:

:

1.5

kHz

:

0.5

W

:

1

kHz

:

8

ohms

Resistive

UNIT

AM

Hz

SSB

Hz

FM

Hz

AM

W

FM

W

Wpep

AM

dB

SSB

dB

FM

dB

SSB

dB

NOMINAL

i

300

i

300

+

300

10.0

10.0

21.0

-50

-50

-50

-55

BLALLA

юною

ooo

бё

LIMIT

1.500

1.500

1.500

0

оо

HHH

.O

—

14.0

.0

-

14.0

18.0

-

26.0

4.

RECEIVER

(ANL/NB

Switch

off)

a)

b)

c)

d)

e)

f)

g)

h)

k)

1)

m)

n)

o)

Max

Sensitivity

Sensitivity

for

10dB

S/N

FM

:

20dB

S/N

АСС

Figure

of

Merit,

50

mV

for

10dB

change

in

Audio

Output

Overall

Audio

Fidelity

at

6dB

down

Upper

Frequency

Lower

Frequency

Adjacent

Channel

Selectivity

(10

kHz

1

GEN)

Maximum

Audio

Output

Power

Audio

Output

Power

at

10%

THD

RF

Gain

Control

Range

S/N

Ratio

at

1mV

Input

Squelch

Sensitivity

at

Threshold

Squelch

Sensitivity

at

Tight

S

Meter

Sensitivity

at

"S-9"

(No

Modulation)

Image

Rejection

Ratio

IF

Rejection

Ratio

Oscillator

Dropout

Voltage

UNIT

AM

uV

SSB

uV

AM

uV

SSB

uV

FM

uV

SSB

dB

AM

Hz

SSB

Hz

FM

Hz

AM

Hz

SSB

Hz

FM

Hz

AM

dB

АМЫ

`

55В

W

FM

W

AM

W

SSB

W

AM

dB

SSB

dB

FM

dB

AM

dB

FM

dB

AM

uV

SSB

uV

ЕМ

uV.

AM

uV

SSB

uV

FM

uV

AM

uV

SSB

uV

FM

uV

AM

dB

SSB

dB

SSB

dB

ШІ

з

$

NNN

>>

^

ann

ooo

NNN

www

Ооо

ooo

р)

Battery

Drain

at

No

Signal

ч)

Battery

Drain

at

Max.

Audio

Output

r)

Clarifier

Range

5.

PUBLIC

ADDRESS

a)

Output

Power

at

10%

Distortion

NOTE

:

UNIT

AM

mA

SSB

mB

FM

mA

AM

mA

SSB

mA

FM

mA

AM

kHz

SSB

kHz

FM

kHz

LIMIT

800

800

800

1.500

1.500

1.500

More

than

More

than

More

than

Krk

aan

ооо

1)

Shall

have

reverse

polarity

protection

and

operable

with

positive

of

negative

grounding

2)

Operating

Power

Voltage

:

13.8V

+

15

-

20%

DC

B.

1.

INSTALLATION

LOCATION

Plan

the

location

of

the

transceiver

and

microphone

bracket

before

starting

the

installation.

Select

a

location

that

is

convenient

for

operation

and

does

not

interfere

with

the

driver

or

passenger

in

the

vehicle.

In

automobiles,

the

transceiver

is

usually

mounted

to

the

dash

panel

with

the

microphone

bracket

beside

it.

MOUNTING

AND

CONNECTION

This

radio

is

supplied

with

a

universal

mounting

bracket.

The

transceiver

is

held

in

the

bracket

by

the

four

thumb

screws.

supplied,

permitting

adjustment

to

the

most

convenient

angle.

The

bracket

must

be

mounted

with

the

screws

supplied.

The

mounting

surface

must

be

mechanically

strong.

Proceed

as

follows

to

mount

the

transceiver

:

a)

After

you

have

determined

the

most

convenient

location

in

your

vehicle,

hold

the

radio

with

the

mounting

bracket

in

the

exact

location

desired.

If

nothing

interferes

with

mounting

it

in

the

desired

position,

remove

the

mounting

bracket

thumb

screws

and

mark

the

mounting

holes

using

the

bracket

as

a

template.

Before

drilling

the

holes,

make

sure

nothing

will

interfere

with

the

installation

of

the

mounting

screws.

Drill

the

holes

and

mount

the

bracket

and

then

install

the

radio.

b)

Connect

the

antenna

cable

plug

to

the

standard

receptacle

on

the

rear

panel.

Most

CB

antennas

are

terminated

with

a

type

PL-259

plug

which

mates

with

the

receptacle

on

the

rear

panel.

c)

Connect

the

DC

power

input

wire

with

the

fuse

(red)

to

+12V

DC.

This

wire

extends

from

a

plug

which

connects

to

the

rear

panel.

in

automobile

installations,

+12V

DC

is

usual-

ly

obtained

from

the

accessory

contact

on

the

ignition

switch.

This

prevents

the

set

being

left

on

accidentally

when

the

driver

leaves

the

car

and

also

permits

operating

the

radio

without

the

engine

running.

You

can

locate

the

а)

е)

ассеввогу

contact

on

most

ignition

switches

by

tracing

the

power

wire

from

the

AM

broadcast

receiver

in

the

car.

Connect

the

black

wire

to

ground.

This

is

usually

the

chassis

of

the

car.

Any

convenient

location

with

good

electrical

contact

may

be

used.

(remove

paint).

Note

:

See

ground

connection

under

GENERAL

INFORMATION

for

more

detail.

Mount

the

microphone

hanger

on

the

side

of

the

unit

or

near

the

unit,

using

the

screws

supplied.

.

С.

GENERAL

INFORMATION

1.

GROUND

CONNECTION

This

radio

may

be

installed

and

used

in

any

12V

DC

negative

or

positive

ground

system

vehicle.

a)

Negative

ground

system

:

Connect

the

Red

power

lead

from

the

radio

to

the

positive

or

(+)

battery

terminal

or

other

con-

venient

point,

and

connect

the

Black

power

lead

to

the

chassis

or

vehicle

frame

or

(-)

battery

terminal.

b)

Positive

ground

system

:

In

the

cases

of

positive

ground

вув-

|

tem,

connect

the

Black

power

lead

from

the

radio

to

the

nega-

tive

or

(-)

battery

terminal

or

other

convenient

point,

and

connect

the

Red

power

lead

to

the

chassis

or

vehicle

frame

or

(+)

battery

terminal.

ANTENNA

This

radio

is

designed

to

operate

into

a

50

ohm

CITIZENS

RADIO

antenna.

Best

result

will

be

obtained

from

your

transceiver

if

you

use

good

antenna

and

properly

install

your

antenna.

(Refer

to

the

antenna

installation

instructions

included

with

your

an-

tenna.)

A

vertically

polarized

quarter-wavelength

whip

antenna

provides

the

most

reliable

operation

and

greater

range.

The

shorter

loa-

ded-type

whip

antennas

are

more

attractive,

compact

and

adequate

for

applications

where

the

maximum

possible

distance

is

not

ге-

quired.

Also,

the

loaded

whip

antennas

do

not

present

the

pro-

blems

of

height

imposed

by

the

full

quarter-wavelength

whip.

When

installed

in

a

boat,

the

transceiver

will

operate

most

efficiently

when

the

antenna

used

has

been

especially

designed

for

marine

applications.

Mobile

whip

antennas

utilize

the

metal

body

of

the

vehicle

as

a

ground

plane.

When

mounted

on

a

corner

of

the

vehicle,

they

are

slightly

directional,

in

the

direction

of

the

body

of

the

vehicle.

For

all

practical

purposes,

however,

the

radiation

pattern

is

non-

directional.

A

slight

directional

characteristic

will

be

observed

only

at

extreme

distances.

A

standard

antenna

connector

(Type

50-239)

is

provided

on

the

transceiver

for

easy

connection

to

a

standard

PL-259

cable

termination.

Before

installing

the

transceiver

in

a

boat,

consult

your

dealer

for

information

regarding

an

adequate

grounding

system

and

pre-

vention

of

electrolysis

between

fittings

in

the

hull

and

water.

BASE

STATION

OPERATION

To

operate

the

transceiver

from

your

home

or

office,

using

regu-

lar

house

current

as

the

power

source,

you

will

require

a

sepa-

rate

power

supply

capable

of

supplying

5

amps

at

a

13.8V'DC

out-

put

with

a

nominal

input

voltage

of

220

volts

AC,

50/60

Hz.

Simply

connect

the

red

(+)

and

black

(-)

leads

to

the

transceiver

to

the

corresponding

DC

terminals

of

the

power

supply.

NOTE

:

Do

not

attempt

to

operate

this

transceiver

by

connecting

|

directly

to

220V

AC.

When

an

AC

power

supply

is

used

with

the

transceiver

for

base

station

operation

any

Citizens

Band

beam,

dipole,

ground

plane

or

vertical-antenna

may

be

used.

A

ground

plane

vertical

antenna

will

provide

the:

most

uniform

horizontal

coverage.

REMOTE

SPEAKER

The

external

speaker

jack

(EXT.

SPKR)

on

the

rear

panel

is

used

for

remote

receiver

monitoring.

The

external

speaker

should

have

8

ohms

impedance.

When

the

external

speaker

is

plugged

in,

the

internal

speaker

is

disconnected.

PUBLIC

ADDRESS

An

external

8

ohm

4-watt

speaker

must

be

connected

to

the

(PA

SPKR)

jack

located

on

the

rear

panel

when

the

transceiver

is

used

as

a

public

address

system.

The

speaker

should

be

directed

away

from

the

microphone

to

prevent

accoustic

feedback.

Physical

se-

paration

or

isolation

of

the

microphone

and

speaker

is

important

when

operating

the

PA at

high

output

levels.

OPERATING

INSTRUCTIONS

The

JACKSON

operates

on

226

AM/FM

channels,

226

Upper

Side

Band

channels

and

226

Lower

Side

Band

channels.

When

you

receive

the

SSB

signal

in

the

proper

mode

(USB

or

LSB),