Kenwood TM-941A instruction manual

144/44O/12OO MHZ FM TRIBANDER

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TM-g41A

INSTRUCTION

KENWOOD

CORPORATION

MANUAL

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(A,T)

CONTENTS

'

BEFOREOPERATION

2

SPECIFICATIONS INSTALLATION

3

"

4.

OPERATION

4-1

oPERATING

Panel Display Panel

Front Rear Panel and

4-2 RECEIVER

Receiver Operation Frequency Step Selection A.B.C.(Automatic

(Automatic

ALT

4-3 TRANSMITTER

Transmission Band Time-Out

4-4 MEMORY

M icroprocessor Microprocessor Memory Memory Channel Clearing

4-5

SCAN

Scan Options Band

Scan

Memory Channel Scan CALL Scan

Automatic Memory

Memory

and ACCESSORIES

INSTRUCTIONS

CONTROLS . .

Side

OPERATION

Lock Tuning)

OPERATION

(TOT)

Timer

........

Memory Back-up Initialization Memory

Contents

Memory Memory Shift

Programmable Band

Channel

.................,.....

. . . . . . . .

. . .

case

Band Change)

Memory Entry

Recall

Hold/Resume

Scan

Lockout

Microphone

. . . . . . .

. . . . .

Frequency Selection

On/Off

,.,..,............. 25

TX Alert

Memory

. . .

Bank

Programming

Scan

4 5

7 10 10

. . .

18

22

Channel

4.-6

REPEATER

Transmitter Tone

Autopatch

4-7 DTSS

DTSS Using Using

48 PAGING

Paging Code Paging Code

4-9

TONE ALERT

4-10

AUTOMATIC

4-11

DIMMER

4-12

BEEP

4-13

LOCK/e.

BLOCK

5.

MAINTENAN;''.'.'.'.'.'.'.'.'.'.'.'."'.'.'.'.'. .

6.

7.

oPTIoNALACCESSORIES

DIAGRAM

In

Case

CTCSS

DTMF Panel Separate Kit

OPERATION

Offset

and

CTCSS Operation

Operations

Code Code

POWER

LOCK

DTSS

Memories Monitoring

SYSTEM

Code the DTSS Function

DTSS with a Repeater

Transmission Lockout

and

Difficulty

of

Reverse Function

...............r.......r...

Code Selection

OFF

SCHEMATIC

. . . . . .

unit

[rSU-7)

(DTU-2)

unit

(PG-4K.

Code Selection

DIAGRAM

:.t:.':.:t.::?",

. . . .

. .

PG-4L)

. .

.

36

40

46 47

51

3

1. BEFORE O'ERATION

TO PREVENT INJURY, PLEASE

t

Never Instruction accidentally, a serious electric

Do sunlight

Do

To the

behind

The

Never attempt Do

humidity Do

electrically

remove

place

not

or close

place

not ensure

cabinet and

the unit.

power

place

not

or on unstable surfaces.

not drop

ELECTRIC

NOTE THE FOLLOWING:

case unless

the

Manual.

this unit,

to heating appliances.

anything on

good

ventilation,

allow at least 15 cm

requirement

connection

unit

the

pieces

conductive materials

SHOCK,

lf

of

internal

the

where

in

it will be exposed to direct

top of the cabinet.

do

is

VDC.

13.8 a 24VDC

to

areas of excessive

metal,

instructed

shock

not

needles, coins

into the

FIRE AND OTHER

to do in this

parts

are touched

might

occur.

put

anything

(6

inches) of space

source.

unit,

on top of

dust,

and other

high

p

not

Do

wall

AC

the finsers d

lf

abr

an

the

turn station

CLEANING

1. Turn

2. Do or any substances Wipe

3. unit tened

WARNING

FCC This energy. may modifications manual. this eguipment modification

outlet.

o

t

not

use any type of abrasive

tf

with a

equipment

soft dry

v

Changes or

cause

are

The

user

is

Grasp the

which may

cloth

generate

may

modifications to

harmful

expressly

could lose the

if an unauthorized

made.

plug

damage

a soft

or

or use

interference unless

approved

and

ensure

pad,

thinner,

the unit.

lightly mois-

cloth

radio

this equipment

in the

authority

change

your

that

benzine

frequency

the instruction to operate

or

Do not

4

touch the

power plug,

when

your

hands

are

wet.

2.

SPECIFICATIONS

and

ACCESSORIES

lM MHz Band

^-148

MHz

Frequency

Mode

G

N

R

A

T A

N

M

Antenna Operating

E

Power requirements

E

Ground Gurrent drain

L

Frequency stability t Dimensions Weight

Output

R

power

S

Modulation Spurious

I T T E R

Maximum frequency deviation t

Audio

Microphone

range

impedance

temperature

WXHXD)

radiation

distortion

impedance

(at

Transmit

Receiver

HI

MID

LOW

modulation)

ffi%

mode

1M

Less

than

Less

than

50w

10w

Approx. 5W

-2OC^.+6O"C(

11.54 t€ss ftan

1.24 Less than 1.2A

topprn

Less

than

4 l0 MHz

13.8VDC

150X50X175 mm

Band 1200 MHz Band

-45O

438

F3E(FM)

50c,

-4"F

rS

t

%(11.7

tlegative

10.04 Less

1.9k9

3sw 10w

10w

Approx.5W 1W

Reactarrce rnodulation

-6OdB SkHz

Less thanSyo

600f}

-

*140'F)

15.8V)

1240

Less

A\.'

than 6.0A than

3ppm

t

-sOdB

than

1300

1.24

5

R

E

c

E

I

V

E R

N.

1240

NOTE:

Circuitry I ntermed

Sensitivity Selectivity

Selectivity Squelch Output

External speaker

MHz

1. Circuit

2.

iate

sensitivity

(5%

1260 MHz:

to

and

Recommended

frequency

(12

SINAD)

dB

-6

dB

-60

dB

distortion)

impedance

Less than

ratings are

duty

tst/2nd

O.22pV

subiect

cycle:

(-7dBpl

to change

1 minute

144 MHz

1O.7 MHz/+55

notice, due

without

Transmission,

3

Band

minutes

Double conversion

kHz

Less than 0.16pV

More

24 kHz

Less than

than

Less than

to developments Reception.

MA MHz Band

superheterodyne

21.6 MHz/455 kHz 59.7

2

in

More

W

than

0.1

(8O

pV

load

8c)

(-10

12 k{z

(-14

X5%

dBp)

dBr)

distortion)

X

1200

Less than 36

MHz Band

MHz/+55 kHz

kHz

ACCESSORIES

2-2.

your

Unpack accessories

DTMF

Microphone

(

U.S.A.

transceiver

listed

Canada

and

or

Microphone Microphong

(

U.S.A. Mobile Brackgt

Screw

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

Hook Canada

and

Mounting

. . . . . . . . . . . . . r

. . . .

. . . . . . . . . . . . . e

sgt

6

below

.

. .

.

only)

. .

.

. .

only)

Kit

carefully

included

are

.

. .

.

. .

.

. .,

. .

. . . .

confirm

and

in

the

T91-0397-XX

T91-0396-XX J20-0319-XX

that

box.

. . . .

......

J29-0454-XX

N99-0331-XX

.

the

.

tapping

Self

(

U.S.A.

Wrench

Hex

powgr

DC Fusg(1sA)

1

Instruction

WarrantyCard

(U.S.A.

After unpacking Shipping event

your

operation,

. .

Screw

and Canada

Cablg

o................

Manual . . . o . . .

.

only)

......r....

..r.,.....,............r...........

and Canada

container:

unit

only)

Save

needs to

maintenance,

. . .

.

. . .

N46-3010-46

w01

E30-3034-XX F05-1531-XX 862-0010-XX

. .

boxes

the

be transported

or service.

. .

-o414-xx

......

packing

and

for remote

.

. . .

1 copy

in the

2

1

INSTALLATION

3.

INSTALLATION

3-1.

3-1-1.

1.

Slide

*

on the toward

then the cord

front

2.

3.

4.

5.

Installing the

release button

the

front

Pull

right.

panel

chassis. Insert

socket Make sure Place the cord

(Fig. Align the back with the slot the chassis

front

the 2l

Push toward the they taking care connecting

the

you

remove the

Be careful

unit.

connecting

panel

(Fig.

microphone connector

the

on the

the tab

in

the

2) the

of

panel

the lock completely,

panel

front

from the

unit

1)

right of the

microphone

holder hook

front

on the

before

back.

front

chassis

not

to trap the

cord.(Fig.

INSTRUCTIONS

Microphone

to the

panel

right,

whole

with

the

to the

(Fig.

1)

into

main unit until

on the connector

groove. on the

panel

left

of

putting

(Fig.

panel

until

3)

2)

the

is

on top.

(Fig.

minrnnl

microphone

release

button

microphone

it clicks.

3)

The

connecting

put

3)

3-1-2.

NOTES

1. When installing the transceiver easie location Install

2. off because

Install

1. the supplied washers and tapping screws each).

2. Attach the transceiver

loosely

screws

Adiust

3.

position

4.

Hold the screws

groove

in

the

Mounting

of operation

for

the

the bracket securely so that

vibration.

of

the bracket using

using the SEMS

pcs.).

(4

viewing

the

.

transceiver

using the supplied

is

cord

on

easier

the back

Bracket

and

safety

mounting

pcs.

(4

angle of the bracket to

flat

self

in

bracket.

t

Flat

washer

place

wrench.

and

to manage

of

front

the

in a vehicle

when

selecting the

it will not

tighten

when it panel.(Fig.

consider

come

the desired

4

the

SEMS

is

7

3-2.

CONNECTION

3-2-1.

The performance

antenna, of perform

ohms. 2V for transceiver the use of RG-8U is coaxial less transceiver (greater High SWR

High SWR drop.

Caution We recommend that arrestor

Antenna

type of antenna

Use

than

and

of the transceiver.

good quality,

at its best.

50-ohm

The antenna

coaxial cable such as

this connection.

recommended. Match

cable and

1.5

that

to

will activate if the

than 3 to 1).

values will

may lead

to

:

your

in

antenna

is

that

to enable

lf

low loss coaxial

of the antenna

The

1.

cause the transmitter output to

cause the transmitter

TVI

or

you

install a high

f ire,electric shock,personal

itself.

radio

Use

greatly

properly

a

used will

your

input impedance

antenna is far from

the

cable, such as

impedance

the

protection

SWR

that the

so

circuit

particularly poor

is

BCI reports.

quality

lines for

protection

injury,or

damage to the

affect the

adjusted

transceiver to

is

RG-8U

or

50

8D-

the

of the

is

SWR

in

the

lightning

against

4. After completing with heat

resistant

moisture.

not

Do

5. too

Battery

Connect the

remove

the fuse

long.

Connections

power

cable Use of the cigarette connection, close connecting them

To 12OO

4 144 MHz

and will result

attention

antenna

MHz

band

lO

MHz

band band

to the

to the battery.

wirirg, wrap

the

tape to

even

directly to

lighter

polarity

protect

against

if the

the

socket will

poor

in

performance.

of

the cables

the fuse

heat

power

battery

terminals.

lead

Built-in is

switched.

holder

and

cable is

poor

to

Pay

when

Speaker

3-2-2.

Cautions

Mobile Installations

:

1. Before installing the negative

the After installation and wiring,

2,

for correct negative

lf

3.

conductor etc.

lead to the battery terminal.

fuse

the

has

Then replace

from

lead

installation

opens, be

not

been damaged by

with a

rating.

I

power

cable,

the battery for

be sure to double check

before

to check

sure

new fuse

be

sure

to remove

safety.

reconnecting

that each

circuiting,

short

the same

of

the

,

enough

good

:

space around

ventilation.

Caution Leave for

Each

the

fan on the

rear

panel

is switched.

speaker

band

sure

Make

when connecting

correct

Engine

Eng

Red

Fuse

wiring

lf the

I

disassemble hole.

3-2-3.

Fixed

A regulated supplying and

Caution

1.

2. Before

at

PS-50

the

:

Never connect

all

until

connecting connector, switches supply.

positive (*)

the

partment

comPartment-#-

ine com

and

to the

-l-

negative

battery.

tg

t;t

\t1,/ r

from

cable

heat,

the

in the

fuse

cable.

pro

is

moiswhen

fire

holder

a

Chass

unass fire

fire

wall

rtoth

power

the tected

or abrassion

ture

securing

hole the

Station

power

DC

12

least

recommended.

are

other connections

be sure

both the

of

supply

Amperes)

power

AC

the

and disconnecting

to

transceiver

(-)

lead

Passenger

Make sure

not

does

edge

the

iso

o'L

a

using

w

all

w

hr

r

o

crc rea(

r

is too

ssis

cha

wire

he

ldt

passenger

From compartment

Thread

(13.8

VDC capab_le

is required.

to the

cable

been

have

turn OFF

and

polarity

pa

rtment

com

To the transceiver

cable

the

contact

directlY

hole bY

of the

grommet.

small,

through

this

like

The PS-430

AC outlet

made.

the

POWER

the

DC

the

is

the

power power

of

3.

Observe transceiver

ground.

is

cable

Red Black

To

antenna

14

Ml.lz

barKt

4 l0

MFlz

band

lm

MHz

Caution

:

Leave enough

good

for

ventilation.

polarity

of the DC

operates on

Battery

color coded :

polarity

+

(Positivepolarity)

+

--+

(Negative

space

must

Bhck

Q

around

power

cable.

13.8 VDC, negative power

be correct.

The

polariff)

Built-in

Speaker

band

AC100V

Each

is switched.

@

the

fan

on

the

rear

The

switched.rs

speaker

panel

I

4.

OPERATION

4-1.

Press (M>V.M,

OPERATING

4-1-1.

Front

the F

or

key

LOCK)

Panel

so that

begin

CONTROLS

the indicators

to light red.

below

the key

VFO

ra>V

/

This

key is

MR

or tuning decrease Press scan. Pressing copy

CALL channel

control and

and

the

key

used

the operating

hold

the key within

memory

return

to

microphone

the key

channel

to the VFO

mode.

frequency.

for longer

10

seconds

or

call

Pressing

channel

UP

/

than 1

mode

this key

DWN

second

pressing

of

data

after

operating

will

keys

to increase to initiate

the F

to the VFO.

in

allow

key

the the

or

VFO

will

MR

/ukey

This

key is

(Memory mode tuning select the Pressing second scanning. Pressing

pressing displayed

MHz This microprocessor increase frequency Pressing pressing lock currently accidental

Recall)

or

CALL channel

control

desired Memory

the key

will initiate

the key within

the F key data into

IOCK

/

key is

or

in 1 this the

function

erasure.

10

used

to

select the MR

mode

can

key

used

that

decrease

MHz increments.

key within

F

key will

to activate,

displayed

from

mode.

then be

channel.

for

longer

memory

10

will

memory.

to

you

the operating

10

cause

protecting

data from

the VFO

The

used

than 1

channel

seconds

store the

tell

the

wish

seconds

the

key

the

to

of

to

Tuning

of

This

control desired transm MHz Frequency

Scan Direction,

control

is

step,

Step, Tone

,a

fb,ffi;

g;;i;!

Fgg

@@@@ @@@@

used

tt / receive

etc.

to

Memory

,fr

6'"slffBf,#sss"g;

ffi

Fgg

wrpiu,[ut]l!!

select

frequeflcy,

Frequehcy,

the

Channel,

POWER This

switch is

power about switch

O

m

ESS

on. The

half

is

w+&pt;l_[!

,tt

Release

Slide

this button unlock chassis. There socket chassis.

the front

on

switch

a second

pressed.

ffi

button

the

used to

display

tEi

i?:'

panel

is a microphone

right

to

after

the

from

side

turn

the

appears

the

right

to

the

of the

CONTROL

SELECT

keys

Pressl

Cunent

I

Operating

Band

indicators

@ @ @

fr:hfi=g;

ffi

F1tlwphlfrflffi

N

These keys transmission The

,ffid'F

il:fr

FgBwri

v0L

+

501

BAND These keys are also the

"PTT" which

VOL controls These controls

SELECT

front

indicator

band

green

are used

used

panel

has been

(Rotate)

used to select

are

band, use the

light shows

DTSS

TM-941A

co

a.locr<

€

TR I BANDER

+ cTcss

V

ry,##i f$;

PoUERO

(Pressl

keys

to select

switches.

are used

the

will flash

selected.

to

BAND SELECT

which band

144Mj1z

YOL

,t.

VOL controls

/

the transmit

you

band When a key

as a

adjust the

wish to control

visual signal

volume.

the key operating

key.)

will

be controlled

band

(

Rotate)

They

band.

with

pressed

is

to

the

show

band.(To

by the

SQL These

used adjust threshold

panel

front

12@MHz

--irqr-rRo

d--l _:__

(Squelch)

controls

to

each

level.

chat

c,

band

controls

are

separately

squelch

CALL

key

Press

this

call

Pressing than vFo/cnu-

key

channel

the

1

second

function.

or MEMO/CAU_

scan. Pressing

momentarily pressing

the into

Press above light

this

currently

the

Call

channel.

F

the

key

or below

red.

to activate

key for

will

the

F

and

key

will

displayed

so that

the indicators

the keys

the

longer

initiate

key

then

store

data

begin

to

SHIFT

key Pressing will

cause

radio

to shift from

one

offset direction othgr,

i.g.

"-"

to

simplex

where

no

shows.

this

key

the

to

the

"*"

to

indicator

REV

/

This

key is transmat during

you

have

key

will not

Pressing and

then allow VFO

tuning

size.

Use

select

slt

I FT

SreP

used

receive

/

repeater

selected

function.

the F

pressing

you

to

step

the tuning

the

desired

key

to reverse

operations.

key

select

and

tuning

frequencies

the

lf

simplex

this

momentarily

this

key

the

will

desired

scan

step

control

to

step.

LOW This select

power Pressing

/otM

key the level.

key

transmit

the momentarily pressing

allow desired

with control. selections

this

you

display

the

Four

are

to

main

is

used

F

and

key

select

intensity intensity

possible.

to

output

key

then

will the

tuning

TONE

Pressing

to

select

mode(T, Pressing

then the T.ALT

12

/T.ALT

this

the

desired

CTCSS,

the F

pressing

function.

key

causes

tone

the

signalling

OFF).

key momentarily

this

key

will

activate

radio

and

DTSS

/

Pressing

tone

signaling

(

or

off)

Optional

Pressing

pressing function activate.

AUr

this

the F this

of

key

the

selects

mode

key

(DTSS,

DTU-2

is

momentarily,

wifl

cause

1200

MHz

the

desired Paging,

required).

then

the

ALT

band

to

MUTE This

receive

AAC

/

key is

audio

Pressing and

then

toggle

the

key

used level

the F

pressing

ABC

function

to lower

-20d8.

by

the

key momentarily

this key

on

or

will

off.

Function

I

o

Press the

indicator

key below.

Key

F

1 Sec,

F 1 Sec, F 1

Sec,

F 1

Sec,

F 1 Sec, F

1 Sec,

F 1

Sec,

F

1

Sec,

CONTSEL

F 1

Sec,

BATDSEL

o

Press and

Key

F+

VFO

key

F key

VFO

illR

ltHz

TOl{E

REV DTSS LOW

hold the

Assignments

for longer

begins

Change

Memory

Automatic

will turn on

Tone frequency selection

Beep

DTSS

Time-out timer

Select

output

microphone

F

key, then

Enter the

lower

than

f lash,

to

Function

Hold/

Scan

Resume

Band on or

mode

channel

Power

off

or off

volume selection

code selection

on or off

receive detection

from the

band

connector

off

the

Function

programmable

frequency

1 second

then

lockout

function

key

scan

limit

so

press

Refer to

P.31

P.35

P.46

P,36

P.46 P.38 P.23

P.17

P.22

below.

Refer to

P.32 4-5-4

that the

key

the

4-5-2

4-5-8

4-10

4-6-3

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4.2.

RECEIVER

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2. Turn transceiver's after that will The frequencies display displayed microprocessor

Perform

18

on

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OPERATION

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data

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the

desired SELECT

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desired

band

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speaker.

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the

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transmit

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SEL

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signal

microphone

the

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point. using

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indicator

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to

at

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This

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will

i

I i i

l

Kenwood TM-941A instruction manual

Specifications and Main Features

Frequently Asked Questions

User Manual