Kenwood TM-241A Manuale utente

GOOMNA»

144MHz

TRANSCEIVER

TM-241A/241E

430/440MHz

TRANSCEIVER

TM-441A/441E

1200MHz

TRANSCEIVER

TM-541A/541E

INSTRUCTION

MANUAL

KENWOOD

CORPORATION

62-0031-00(T)

Thank

you

for

purchasing

this

new

transceiver.

IMPORTANT:

Please

read

this

instruction

manual

carefully

before

placing

your

transceiver

service.

SAVE

THIS

INSTRUCTION

MANUAL.

CAUTION:

NOTE:

disregarded,

inconvenience

only,

risk

equipment

damage

personal

injury.

CAUTION:

Long

transmission

extended

operation

the

power

mode

might

cause

the

rear

this

transceiver

get

warm.

not

place

the

transceiver

where

the

heat

sink

(rear

panel)

might

come

contact

with

plastic

vinyl

surfaces.

Equipment

damage

may

occur,

but

not

personal

injury.

This

instruction

Manual

covers

the

following

models.

TM-241A:

144MHz

TRANSCEIVER

(U.S.A.

and

general

markets)

TM-241E:

144MHz

TRANSCEIVER

(U.K.

and

European

markets)

TM-441A:

440MHz

TRANSCEIVER

(U.S.A.

only)

TM-441A:

430MHz

TRANSCEIVER

(General

markets)

TM-441E:

430MHz

TRANSCEIVER

(U.K.

and

European

markets)

TM-541A:

1200MHz

TRANSCEIVER

(U.S.A.

only)

TM-541E:

1200MHz

TRANSCEIVER

(European

markets)

FCC

WARNING

This

equipment

generates

uses

radio

frequency

energy.

Changes

modifications

this

equipment

may

cause

harmful

interference

unless

the

modifications

are

expressly

approved

in_

the

instruction

manual.

The

user

could

lose

the

authority

operate

this

equipment

unauthorized

change

modification

made.

CONTENTS

PON

BEFORE:OPERATION

s..2c00

e064

820

ees

SPECIFIGATIONS

22tecicae

spacers

ACCESSORIES

(20a)

tien

INSTALLATION

INSTRUCTIONS

......

OPERATION

CONTROL

FUNCTIONS.

......00000

a0.

RECEIVER

OPERATION

Reception!

....2.

lot

eer

JEON

Frequency

Selection

...................

Frequency

Step

Selection

..............

Programmable

VFO

Tuning

Limits

......

ALT(TM-541A/E

only)...........-.-0-.-

TRANSMITTER

OPERATION.............-

Time-out

Timer'CFOT))

oceccen

esses

MEMORY

Microprocessor

Memory

back-up

.......

[ittialiState

oon.

cee

pis

asa

Oars

Microprocessor

Initialization

...........

21,

Memory'Channél)

22:8. .60..

62.

c.eeces-

Memory

Contents

2...

2.0

e..s.e3

bbe.

ees

Memory

Entfy)

.2:0:

cee

sates

S38.

oes

Memory

Channel

Recall

...............

Memory

SINE

ya.

cna

sic

eae

bees

kee

SCAN

ScaniOperation

«is

cscu

cewsiesuwun

aes

Hold/Resume

Programming

...........

Band

Scatin’

3o3.

Scdenes

seems

snares

Programmable

Band

Scan

.............

Memory

ChannelScan

................

Memory

Channel Lockout

.............

Priority

Alert

Function

.........60.

e000

REPEATER

OPERATIONS

Transmitter

Offsets

...................

Reverse

Function

Tone

Operation

Tone

Frequency

Selection

.............

Autopatch

(U.S.A.

version

only)

........

TONE

CTCSS

OPERATION..........

DTSS

(Dual

Tone

Squelch

System)

OPERATION

esnadeiccn

arsine

annie:

DRS

(Digital

Recording

System)

OPERATION.

fin.

ate

see

bah

ges

PAGING

Xi.

hun.

etter

pase

nes

TONE

AEERT,

SYSTEM...

dcccccew

ess.

APO

(Automatic

Power

Off)

...

DIM@Diramer):

uss

asx

05.2

208

BEEP

IMs

$09

[er

mos

LOCK/MILOCK!

Men

BAA

BLOCK

DIAGRAM

and

SCHEMATIC

DIAGRAM

Another

sheet

WARNING)

BEFORE

OPERATION

PREVENT

ELECTRIC

SHOCK,

FIRE

AND

OTHER

INJURY.

PLEASE

NOTE

THE

FOLLOWINGS:

avoid

risk

electric

shock,under

circumstances

should

the

unit

opened.

not

place

this

unit,where

will

exposed

direct

sunlight

heating

appliances.

ensure

good

ventilation,

not

put

anything

top

the

cabinet

and

allow

least

inches)

space

behind

the

unit.

The

power

requirement

13.8

VDC.

Never

attempt

connection

VDC

source.

not

place

the

unit

areas

off

excessive

dust,

high

humidity

unstable

surfaces.

not

drop

pieces

metal,

needles,

coins

and

other

electrically

conductive

materials

into

the

unit.

not

touch

the

power

plug,

when

your

hands

are

wet.

not

pull

the

power

cord,

when

disconnecting

from

the

wall

outlet.

Grasp

the

plug

and

ensure

that

your

fingers

not

touch

the

live

pins.

abnormal

odor

smoke

detected,

immediately

turn

the

power

off

and

pull

out

the

power

plug.

Contact

the

KENWOOD

service

station

our

dealer.

CLEANING

(a8

Turn

the

power

off,

before

cleaning

the

unit.

not

use

any

type

abrasive

pad,

thinner,

benzine

any

substances

which

may

damage

the

unit.

Wipe

the

front

panel

and

other

exterior

surfaces

the

unit

with

soft

dry

cloth

soft

cloth

lightly

moistened

with

water.

SPECIFICATIONS

TM-241A(USA)

TM-241A/E

|TM-441A(US.A)|

TM-441A

TM441E

TM541A/E

Frequency

range

MHz

144

148

144

146|

438

450

430

440

430

440

1240

1300

Mode

F3E(FM)

Antenna

impedance

500

Operating

temperature

—20°C

+60

(—4F

+1407)

‘s

Power

requirements

13.8V

+15%(117~158V)

Ground

Negative

drai

Transmit

mode

Less

than

11A

Less

than

10A

Less than

urrent

drain

Receiver

mode

Less

than

0.6A

Frequency

stability

Less

than

+10

ppm

Less

than

3ppm

Dimensions

(WXHXD)

(mm)

(Projections

included)

14040

160(5-1/2”

X1-37/64"X6-19/64")

(140

X40

X172(5-1/2"X

1-37/64"X6-25/32”)

Weight

(kg)

1.2(2.65lbs)

50wW

35W

10W

Output

power

MID

Approx

10W

Approx

10W

LOW

Approx.

Modulation

Reactance

modulation

Spurious

radiation

Less

than

—

Maximum

frequency

deviation

E5KHz

Audio

distortion

(at

60%

modulation)

Less

than

(300

3000

Hz)

Microphone

impedance

6000,

Circuity

Double

conversion

superheterodyne

Intermediate

frequency

1st/2nd

10.7MHz

455kHz

30.825MHz

455kHz

_59.7MHz/455kHz

Sensitivity

(12

SINAD)

Less than 0.16

«V

Selectivity

—6dB:

than

kHz

—60dB_

Less

than

kHz

Squelch

sensitivity

Less than

0.1

Less

than

0.177

Less than

0.1

Output

(5%

distortion)

than

across

loads

External

speaker

impedance

otes

1.Circuit

and

ratings

are

subject

change

without

notice

due

advancement

technology.

2.*

Recommended

duty

cycle

minute:

Transmit,3

minutes

Reception

ACCESSORIES

INSTALLATION

INSTRUCTIONS

Unpack

your

new

transceiver

carefully,

and

examine

for

visible.

pes

ets

pra

has

been

4-1

INSTALLATION

damaged

shipment,

notify

the

transportation

company

immediately.

Save

the

boxes

and

packing

Mounting

Bracket

material

for

future

shipping.

When

installing

the

transceiver

vehicle

consider

the

The

following

accessories

should

included

the

box

ease

operation

and

safety

when

selecting

the

with

the

transceiver.

location

for

the

mounting

bracket.

DTMF

Microphone

Install

the

bracket

using

the

supplied

flat

washers

(U.S.A.

CANADA

only)

.........

T91-0380-X5

ea.

and

self

tapping

screws

(

pcs.each).

E "

Attach

the

transceiver

loosely

using

the

SEMS

Dynamic

Microphone

screws.

ENE

market

only)

......-

T91-0379-X5

ea.

Align

the

grooves

the

bracket

with

the

Microphone

transceiver’s

screws

(

Fig.

and

slide

the

transceiver

(EUROPE

market

only)

........

T91-0382-X5

ea.

totherear,

Microphone

Hook

Adjust

the

viewing

angle

the

bracket

the

(U.S.A.

CANADA

only)

........

J20-0319-24

ea.

desired

position

(

Fig.

B).

;

Mobile

Mounting

Kit

Hold

the

transceiver

place

and

tighten

the

SEMS

BYACKEES

51.

ave.

oterare

nia

sieve

J29-0436-03

ea.

screws

using

the

supplied

wrench.

SCROW'SOE

coca.

morele

onstese

N99-0331-05

ea.

Self

tapping

Screw

(U.S.A.

CANADA

only)

...

N46-3010-46

ea.

Hexwrench:

...26c00sece08ce0s

W01-0414-041

ea.

Stacking

plate

(TM-441A/441E/541A/541E)..

J21-4147-14

ea.

power

Cable

.............

E30-2111-05

ea.

Fuse

(TM-241A/241E:

15A)..

FO5-1531-05

ea.

(TM-441A/441E:

10A)..

FO5-1031-05

ea.

(TM-541A/541E:

8A)...

FO5-8021-05

ea.

Instruction

Manual

...........

B62-0031-XX

copy

Weartany

(Cad...

ais

sii

ves

won

oxen

sce

ea.

(U.S.A.,

CANADA

EUROPE

market

only)

4-2

CONNECTION

4-2-1

Mobile

Installations

Cautions

Make

sure

the

positive

(+)

and

negative

(—)

lead

polarity

correct

Before

installing

the

power

cable,

sure

wvizen

iconnecdngiiesthicibatteny

remove

the

negative

lead

from

the

battery

for

Pete

Gore

Passengeneoinnartnent

safety.

the

After

installation

and

wiring,

sure

double

transceiver

check

for

correct

installation

before

reconnecting

the

negative

lead

the

battery

terminal.

Moke

sure

acti

one

the

fuse

opens,

sure

check

that

each

Battery

‘

"when

sian

hele

Chassis

conductor

has

not

been

damaged

short

fire

wall

circuiting,

etc.

Then

replace

with

new

fuse

the

wiring

hole

the

fire

wall

chassis

too

small,

disas-

the

same

rating.

semble

the

fuse

holder

thread

the

wire

through

the

hole.

After

completing

the

wiring,

wrap

the

fuse

holder

From

passenger

with

heat

resistant

tape

protect

against

heat

and

moisture.

Thread

this

not

remove

the

fuse

even

the

power

cable

too

long.

Battery

Connections

Connect

the

power

cable

directly

the

battery

Ignition

Noise

terminals.

Using

the

cigarette

lighter

socket

will

lead

: ; .

Late

poor

connection,

and

will

result

poor

This

transceiver

has

been

designed

suppress

ignition

performance.

Pay

attention

the

polarity

the

"0ise;

however,

excessive

noise

present,

may

cables

when

connecting

them

the

battery.

necessary

use

suppressor

spark

plugs

(with

resistors).

4-2-2 Fixed

Station

regulated

power

supply

(13.8

VDC

capable

supplying

least

Amperes)

required.

The

PS-430

the

PS-50

are

recommended.

Never

connect

the

power

cable

the

outlet

until

all

other

connections

have

been

made.

Before

connecting

and

disconnecting

the

power

connector,

sure

turn

OFF

the

POWER

switches

both

the

transceiver

and

the

power

supply.

Observe

polarity

the

power

cable.

The

transceiver

operates

13.8

VDC,

negative

ground.

Battery

polarity

must

correct.

The

power

cable

color

coded:

Red

—

(Positive

polarity)

Black

—

(Negative

polarity)

4-2-3

Antenna

The

type

antenna

that

used

will

greatly

affect

the

performance

the

transceiver.

Use

properly

adjusted

antenna,

good

quality,

enable

your

transceiver

perform

its

best.

The

antenna

input

impedance

ohms.

Use

50-ohm

coaxial

cable

such

RG-8U

8D-2V

for

this

connection.

the

antenna

far

from

the

transceiver

the

use

low

loss

coaxial

cable,

such

RG-

recommended.

Match

the

impedance

the

coaxial

cable

and

that

the

antenna

that

the

SWR

less

than

1.5

The

protection

circuit

the

transceiver

will

activate

the

SWR

particularly

poor

(greater

than

1).

High

SWR

values

will

cause

the

transmitter

output

drop,

and

may

lead

TVI

BCI

reports.

Caution

recommend

that

you

install

high

quality

lightening

arrestor

your

antenna

lines

for

protection

against

fire,electric

shock,personal

injury,or

damage

the

radio

itself.

OPERATION

5-1-1

CONTROL

FUNCTIONS

REV

miesBBBBs

cToss

POWER

switch

Press

turn

the

transceiver

off.

Press

the

VFO/MPV

MR/M

key

and

switching

the

power

will

reset

the

VFO

MEMORY.

The

microphone

key

can

programmed

when

the

power

switched

on.

@Tuning

control

This

control

used

select

the

desired

transmitter

/receiver

frequency,

MHz

step,

memory

channel,

frequency

step,

tone

frequency,

scan

direction,

etc.

@VOL

control

This

control

used

adjust

the

volume

from

the

internal

and

external

speaker

(if

used).

Clockwise

rotation

will

increase

the

volume

and

counterclockwise

rotation

will

decrease

the

volume.

@®SQL

(Squelch)

control

This

control

used

select

the

desired

squelch

threshold

level.

©LOW/DIM

key

LOW

This

function

used

select

the

transmit

output

power

level

(HI,

MID(Except

TM-541A/E),

LOW).

DIM

This

function

used

select

the

intensity

the

front

panel

display

illumination.

(See

page

48)

Pressing

the

key

for

longer

than

second

and

then

press

the

LOW/DIM

key

while

the

indicator

flash-

ing

will

turn

the

time-out

timer

function

and

off.

Microphone

connector

Attach

the

supplied

microphone

this

connector.

The

out

the

connector

shown

the

accompanying

illustration.

@GND

GND

(Microphone

audio)

MIC

(Microphone

Audio).

ery

Audio

Output

pir

(Approx

100

mV/10

ohm)

(Push

Talk)

DWN

@®

VDC

(Max

150

mA)

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