Kenwood TM-641A User manual

CGOO/ANAD

144/220

MHz

MULTI

BANDER

TM-641A

144/440

MHz

MULTI

BANDER

TM-741A

144/430

MHz

MULTI

BANDER

TM-741A

144/430

MHz

MULTI

BANDER

TM-741E

INSTRUCTION

MANUAL

KENWOOD

CORPORATION

©PRINTED

JAPAN

B62-0082-10(K)(T)

92/12

111098765432191/12

11109876

Thank

you

for

purchasing

this

new

transceiver.

IMPORTANT:

Please

read

this

instruction

manual

carefully

before

placing

your

transceiver

service.

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.

This

instruction

Manual

covers

the

following

models.

TM-641A:

144/220MHz

MULTI

BANDER

(U.S.A.version)

TM-741A:

144/440MHz

MULTI

BANDER

(U.S.A.

and

Canadian

version)

TM-741A:

144/430MHz

MULTI

BANDER

(General

markets)

TM-741E:

144/430MHz

MULTI

BANDER

(European

markets)

NOTE:

disregarded,

inconvenience

only,

risk

equipment

damage

personal

injury.

CAUTION:

Equipment

damage

may

occur,

but

not

personal

injury.

Save

this

instruction

manual.

Illustrations

show

the

TM-741A.

FCC

WARNING

This

equipment

generates

uses

radio

frequency

energy.

Changes

modifications

this

equipment

may

cause

harmful

interference

unless

the

modifications

are

expressly

approved

the

instruction

manual.

The

user

could

lose

the

authority

operate

this

equipment

unauthorized

change

modification

made.

CONTENTS

MEMORY.

cscce

saess

aicines

sions

croue

wate

BEFORBIOPERATION.

ossx

nase seee

yew

sos

Microprocessor

Memory

Back-up

.....

SPECIFICATIONS

and

ACCESSORIES

......

Microprocessor

Initialization

........

INSTALLATION

INSTRUCTIONS.

..........

Memory

Channels

..................-

OPERATION

as:

gece

eas

somadeag

odd

nase

Memory

Contents

OPERATING

CONTROLS.

wie

ijeieie

ceeeciee

Memory

Entry

..........

FrontPanel.

nese

csiwsines

dated

aca

ante

Memory

Channel

Recall

Microphone...

ao.

cis

sos

nse

see

vreis

aan

Memory

Banks,

........62.etee

eee

Display

Patel

kyiaa

seas

neecearadeares

Clearing

Memory

......

0...

sees

ees

Rear

Panel

and

Sidecase..........-5.

Memory

Shift,

sevecsenms

veusiiea

4-2.

RECEIVER

OPERATION

..........-..-:

SCAN!

sues

sie

Mal

saat

WAR

HERE

Receiver

Operation

.........0eeseeees

Scan

Options

Frequency

Selection

.........

eee

Hold/Resume

Programming

.........

Frequency

Step

Selection

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

Band

SCA.

acai.

ceunscocses

tes

Need

Boe

Moew

ProgrammableVFO

Tuning

Limits

...

Programmable

BandScan_...

ti,

A.B.C.(Automatic

Band

Change)

_......

MHz

Sant)

-ajheatainiciace

naan

Band

Selection

..........000esse

eee

Memory

Channel

Scan

wes

Attenuator

ON/OFF

.............0008

CALL

Sean

yaya

suay

cate Hore

Wns

ALT

(Automatic

Lock

Tuning)

.......

ViMNG

Seam

ssececciscsick

asl

4-3

TRANSMITTER

OPERATION..........

Automatic

Memory

Scan

....

saa

189

Transmission

see

cee

acces

cites

noire

ane

Memory

Channel

Lockout

—.

POCAT

EYE

gee

aiok

ban

uate

4-6

REPEATER

OPERATION

....

Time-Out

Timer

(TOT)

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

Transmitter

Offset

.....

Bandwidth

Selection

..............04.

Reverse

Function

—.........

vow

Tone

and

CTCSS

Operation

tne

Autopatch

Operations

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

B27

SDTSS:

sas-cauecveniaies

oats

edettac

5-3

CLOCK

POSITION

THE

FREQUENCY

DESSCodG)

“Wiis

dof

Dien

tase

tees

DISPLAY.

neg

aoen

aduntatny

Steen

eae

DTSS

CodeSelection

so.

seavecuceus

Transceiver

unction

OFF

.......

Using

the

DTSS

Function

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

Transceiver

Function

OFF

Using

DTS

witha

Repeater

0.0...

leanne

Poe

Bei®

PAGING:

tonsisirmean

odes

Met

torek

seo

Clock

Operation

the

Frequency

Display

Paging

Code

Memories

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

MAINTENANGE

ics

sas

ssse

aces

echuat

omen

EodeiSelection;

sacs

deedean

Mallee

ois

Case

Difficulty

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

Code

Transmission

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

OPTIONAL

ACCESSORIES

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

Paging

Code

Monitoring

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

CVCSS

(TSUAD

ect

smear

eisic

COdeLGCk

Out:

<5.

iaaa

iced

sides

wsode

ate

DIMP

unit

DTU)

«ch

Phe

aches

4-9

TONE

ALERT

SYSTEM.........000.00005

Panel

Separation

Kit

(PG-4K,

PG-4L)

4:10

AUTOMATIC

POWER

OFF

(APO)

......

Bracket.

otisc

eos

Aas

Seah

heed

hoe.

412

DIMMER

(DIM)

sie

iciic

cite

llins

ans

Band

Wine:

oiseesccisSesteud

atatamees

paces

4-12

BEEP

TONE

LEVEL

ADJUSTMENT....

BLOCK

DIAGRAM

and

SCHEMATIC

DIAGRAM

4-13

BEEP

TONE

FREQUENCIES.

...........

naaaiiacten

attended

another

sheet

AYA

KEY

LOCKS

cits

eta

iain

bsleloteecwe

Dit

CHOCKS.

sit

loses

tater

atacd

aad

Rowe

bee

dein

5-1

CURRENT

TIME

ANDDATE...........

Backup

Switeni

irsed

ehteee

diols

Setting

the

Current

Time

and

Date

.....

5-2

OTHERCLOCK

FUNCTIONS

..........

Current

Time,

Calender

and

Stopwatch

the

NOTICE

‘Piaptarinine

eet

One

additional

band

may

installed

using

options

Activating

the

SLEEP

Timer

described

this

manual.

Operation

instructions

ime

remain

the

same

for

the

radio

when

uses

dual

band

tri-band

configuration.

BEFORE

OPERATION

prevent

electric

shock,

fire

and

other

injury,

please

note

the

following:

Never

remove

the

case

unless

instructed

this

Instruction

Manual.

the

internal

parts

are

touched

accidentally,

serious

electric

shock

might

occur.

not

place

this

unit

where

will

exposed

direct

sunlight

heating

appliances.

not

place

anything

top

the

cabinet.

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

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.

abnormal

odor

smoke

detected,

immediately

turn

the

power

off.

Contact

the

KENWOOD

service

station

your

dealer.

Cleaning

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

and

ACCESSORIES

2-1.

SPECIFICATIONS

144

MHz

Band

220

MHz

Band

440/430

MHz

Band

Frequency

U.S.A.

and

Canada

144

~148

220

~225

438

~450

range

MHz

Other

market

144

~148

= 430

~440

TM-741E

144

~146

430

~440

Mode

F3E

(FM)

Antenna

impedance

Operating

temperature

—20°C~+60°C

(—4°F

+140°F)

Power

requirements

13.8VDC+15%

(11.7~15.8V)

Ground

Negative

Transmit

mode

Less

than

11.5A

Less than

7.0A

Less

than

10.0A.

Carrera

Receiver

mode

Less

than

1.2A

Frequency

stability

+10ppm

Dimensions

(WH

XD)

15050175

Weight

1.6

Output

50W,

25W 35W

power

MID

10W

LOW

Approx.

Modulation

Reactance

modulation

Spurious

radiation

Less

than

—60dB

Maximum

frequency

deviation

kHz

Audio

distortion

(at

60%

modulation)

Less

than

Microphone

impedance

6000

144

MHz

Band

220

MHz

Band

440/430

MHz

Band

Circuitry

Double

conversion

superheterodyne

Intermediate

frequency

Ist/2nd

10.7

MHz/455

kHz

30.825

MHz/455

kHz

21.6

MHz/455

kHz

€

Sensitivity

(12

SINAD)

Less

than

0.16

(—10

dByu)

Selectivity

—6dB

than

kHz

Selectivity

—60dB

Less

than

kHz

Squelch

sensitivity

Less than

0.1

(—14

dBy)

Output

(5%

distortion)

than

(80.

load

)(5%

distortion)

External

speaker

impedance

NOTE:1.

Circuit

and

ratings

are

subject

change

without

notice,

due

developments

technology.

Recommended

duty-cycle:

minute

Transmission,

minutes

Reception.

2-2.

ACCESSORIES

Unpack

your

transceiver

carefully

and

confirm

that

the

accessories

listed

below

are

included

the

box.

DTMF

Microphone

.........

T91-0397-XX

.....

(U.S.A.

and

Canada

only)

Microphone

.....

ons

specs.

T91-0398-XX

.....

(

European

version)

Microphone’...

..cs5

ics

T91-0396-XX

.....

(

General

market)

Microphone

Hook

..........

J20-0319-XX

.....

(

U.S.A.

and

Canada

only)

Mobile

Motintifig

Kat

.oi..c.J.ecei

cole.

nielelageysye

ensia

ace

Bracket

ccwioaemie

weno

J29-0454-XX

Serew'S@b

caccca

sees

aiaaces

N99-0331-XX

Self

tapping

Screw

..........

(U.S.A.

and

Canada

only)

N46-3010-46

.....

Hex

Wremich

sie

sti

awcyororsisnes

W01-0414-XX

....

power

Cable

...........

E30-3034-XX

....

PUse(HSA)

coed

vain

wesw

F05-1531-XX

....

Instruction

Manual

........

B62-0082-XX

copy

Quick

reference

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

B59-0441-x

copy

Warning

sheet

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

B58-1001-*

copy

Warranty

Card

(U.S.A.,

Canada

and

European

version

OTANIW)

asana

asceo

iota

cate

rare

Slane

SheMet

Pate

Nee

After

unpacking

Shipping

container:

Save

the

boxes

and

packing

the

event

your

unit

needs

transported

for

remote

operation,

maintenance,

service.

INSTALLATION

INSTRUCTIONS

INSTALLATION

Installing

the

Microphone

and

Setting

the

Clock

Backup

Switch

Before

installing

sure

turn

off

the

power

switch.

3-1-1.

Slide

the

release

button

the

front

panel

the

right.

Carefully

pull

the

front

panel

toward

you

from

the

right,

then

remove

the

whole

panel

unit.

careful

with

the

cord

connecting

the

front

panel

unit

the

chassis.

(Fig.

Insert

the

microphone

connector

into

the

microphone

socket

the

right

the

main

unit

until

clicks.

Make

sure

the

tab

the

connector

top.

Place

the

microphone

cord

the

holder

groove.

(Fig.

BBACKUP

SWITCH

Inside

the

small

cover

the

front

panel

unit

there

Backup

Switch

retain

clock

memory.

you

set

the

switch

,turning

off

the

POWER

switch,

disconnecting

the

power

cable

intermittent

power

failure

will

not

erase

the

clock

memories.

Slide

the

small

cover

off

the

front

panel

unit

shown

the

accompaning

illustration.

(Fig.3)

Gently

lift

the

cable

near

the

grommet.

Set

the

Backup

switch

ON.

Pay

attention

the

labelings.

Push

the

grommet

down

into

its

slot.

Replace

the

small

cover

until

clicks.

Route

the

cable

desired

the

slots

the

rear

the

front

panel.

CONAN

10.

Align

the

hook

the

back

the

front

panel

with

the

slot

the

left

the

chassis

before

replacing

the

front

panel.

11.

Push

the

front

panel

toward

the

chassis

until

locks

compplesely

Take

care

not

trap

the

connecting

cor

The

connecting

cord

easier

manage

when

put

the

groove

the

back

the

front

panel.

12.

Set

the

date

and

time

(

See

page

microphone

connector

(Fig.

Backup

Switch

Grommet

(Fig.

3-1-2.

Mounting

Bracket

Notes

When

installing

the

transceiver

vehicle

consider

ease

operation

and

safety

when

selecting

the

location

for

the

mounting

bracket.

Install

the

bracket

securely

that

will

not

come

off

due

vibration.

Install

the

bracket

using

the

supplied

flat

washers

and

self

tapping

screws

pcs.

each).

Attach

the

transceiver

loosely

using

the

SEMS

screws

pcs.).

Flat

washer

inset

screw

Adjust

the

viewing

angle

the

bracket

the

desired

position

Hold

the

transceiver

place

and

tighten

the

SEMS

screws

using

the

supplied

wrench.

8-2.

CONNECTION

3-2-1.

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-

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

lightning

arrestor

your

antenna

lines

for

protection

against

fire,electric

shock,personal

injury,or

damage

the

radio

itself.

3-2-2.

Mobile

Installations

Battery

Connections

Cautions

Before

installing

the

power

cable,

sure

remove

the

negative

lead

from

the

battery

for

safety.

After

installation

and

wiring,

sure

double

check

for

correct

installation

before

reconnecting

the

negative

lead

the

battery

terminal.

the

fuse

opens,

sure

check

that

each

conductor

has

not

been

damaged

short

circuiting,

etc.

Then

replace

with

new

fuse

the

same

rating.

After

completing

the

wiring,

wrap

the

fuse

holder

with

heat

resistant

tape

protect

against

heat

and

moisture.

not

remove

the

fuse

even

the

power

cable

too

ong.

Make

sure

the

positive

(+)

and

negative

(—)

lead

polarity

correct

when

connecting

the

battery.

Engine

Passenger

compartment

Red

Fuse

aii

lect

location

where

the

power

cable

pro-

Make

sure

the

cable

does

not

directly

contact

tected

from

heat,

mois-

ture

abrassion

when

the

edge

the

hole

securing

the

cable,

using

grommet.

Chassis

fire

wall

the

wiring

hole

the

fire

wall

chassis

too

small,

disassemble

the

fuse

holder

thread

the

wire

through

the

hole.

From

passenger

compartment

Thread

this

Caution

Leave

enough

space

around

the

fan

the

rear

panel

for

good

ventilation.

Connect

the

power

cable

directly

the

battery

terminals.

Use

the

cigarette

lighter

socket

will

lead

poor

connection,

and

will

result

poor

performance.

Pay

attention

the

polarity

the

cables

when

connecting

them

the

battery.

Antenna

Built-in

Speaker

switched.

TM-741A/741E

440/430

MHz

band

TM-641A

Red

OFY

220

MHz

band

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