Kenwood TR-50 User manual

KENWOOD

INSTRUCTION

MANUAL

Thank

you

for

purchasing

the

new

TR-50

transceiver.

Please

read

this

instruction

manual

carefully

before

placing

your

transceiver

in

service.

This

unit

has

been

carefully

engineered

and

manufactured

to

rigid

quality

standards,

and

should

give

you

satisfactory

and

dependable

operation

for

many

years.

ON

ATARWN

>

CONTENTS:

PRECAUTIONS

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CONTRO

FUNCTIONS

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TION.

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GPE

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tes

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DIAGRAM

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SPECIFICATIONS

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ACCESSORIES

«Carefully.

unpack..your..

TR-50:.and..confirm..that.it.is.supplied..with.

the.

following.ac-:.........

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Note:

The

polarities

of

the

DC

cord

assembly

are

as

shown

below.

Do

not

reverse

the

polarities

when

connecting

to

the

battery,

as

damage

to

the

radio

may

result!

is)

Black

Black/White

Stripe

~~].

PRECAUTIONS

1.-Attach-the-supplied:

whip

antenna.

Best

results:will:

be:

obtained:

when:

the:

radio

is

held

away

from

the

body,

since

the

upper

UHF

frequency

range

is

easily

attenuated

by.

most

solid

objects.

2.

When:

the

Ni-Cad

battery.is.used,

ensure

that

the

battery

case

cover

and

the

shor-

ting

plug

are

securely

fastened.

3.

If

the

TR-50

is

used

with

an

external.

antenna

in

mobile

or

fixed

station

operation,

use

a

high

quality,

50

ohm

coaxial

cable.

The

larger

the

cable,

the

better,

since

losses

in

the

cable,

‘‘skin

effect’’,

are

greater

at

the

upper

UHF

frequency

ranges.

To

antenna

4.

Do

not

adjust

coils,

trimmers,

or

pots.

They

have

been

pre-adjusted

at

the

factory.

KENWOOD

If

your

transceiver

should

fail

to

operate

properly,

contact

the

authorized

Kenwood

dealer

where

you

purchased

the

unit,

for

quick

reliable

service.

4

e

4

2.

FEATURES

7%

Linas

PURE

OSE:

PORTABLE,

SHOULDER

TYPE

TRANSCEVER

The

TR-50

is

a

multi*purpose

transceiver

that

can

be

used

as

a

fied

unit,

a

mobile

unit,

or

a

portable

unit.

¢

Repeater

Applications

1)

TONE

(European

versions)

When

the

TONE

switch

is

pressed,

and

the

ierophenel

is

keyed,

a

1750

Hz,

tone

burst

signal

is

transmitted.

(Non-locking

type

switch)

©

TONE

(USA

version)

When

this

switch

is

pressed,

a

Sub-audible

tone

is

emitted

along

with

the

normal

transmitted:

audio

signal

(optional).

Installation

instructions.

for

the

tone

unit

are

shown

(see

page

20).

(Locking

type

switch)

2)

Reverse

function

The

REV

switch

is

provided

to

monitor

the

input

feauaney

of

the

repeater.

@

MICROPROCESSOR

PROVIDES

MULTIPLE

FREQUENCY

CONTROL

FUNCTIONS

e

Frequency

coverage

The

TR-50

covers

all

amateur

frequencies

in

the

range

of

1260

thru

1300

MHz.

e

Dual

digital

VFO’s

A

switch

is

provided

to

select

either

VFO

A

or

VFO

B.

When

VFO

Ais

selected,

the

tun-

ing

progresses

in

20

kHz

steps.

When

VFO

B

is

selected,

tuning

is

in

10

kHz

steps.

The

reset

frequency

is

1260.00

MHz

for

VFO

A,

and

1295.00

MHz

for

VFO

B.

¢

SHIFT/

MHz/

kHz

selector

SHIFT:

Used

to

select

repeater

operation.

Offset

is

+33

MHz

for

the

European

type,

and

—20

MHz

for

the

types

other

than

European

type.

kHz:

When

in

this

position,

the

main

tuning

dial

will

change

the

kHz

position

of

the

displayed

frequency.

MHz:

|

When

in

this

position,

the

main

tuning

dial

will

chiang

the

MHz

position

of

the

displayed

frequency.

¢

Other

functions

1)

5

memory

channels

2)

Priority

alert

function

(AL)

3)

Memory

scan

(MS)

4)

Erase

function,

for

clearing

selected

memory

channels

5)

Program

scan

with

selectable

scan

width

6)

Audio

confirmation

of

various

keyboard

functions

3.

CONTROLS

AND

THEIR

FUNCITONS

Microphone

hanger

@

FRONT

PANEL

®

Antenna

mounting

base

@)

Main

dial

SHIET_

kHz

MHz

@)

Shift

Control

SHIFT_

kHz

MHz

[+]

Shift

control

Attach

the

supplied

whip

antenna

or

an

‘external

antenna

to

the

connector.

(BNC

type)

This.base

can

be

rotated.

When

using

a

whip

type

antenna,

select

the

angle

that

pro-

vides

the

best

receive

and

transmit

signals.

When

an

external

antenna

is

used,

adjust

the

base

to

the-most

convient

angle,

taking

care

not

to

apply

excessive

force

to

the

antenna

mounting

base.,

This

control

is

used

to

select

the

desired

transmit

and

receive

frequencies.

Turning

the

dial

clockwise

increases

the

frequency,

while

turning

‘the

dial

counterclockwise

decreases

the

frequency.

The

dia!

can

be

rotated

thru

360

degrees,

permitting

continuous

tuning.

Rotating

the

dial

during

memory

recall

Beet

neye

cause

the

radio

to

automatically.

revert

to

YES.

A/B

mode.

Note:

In

general,

one

click

rotation

shifts

the

displayed

frequency

one

step

up

or

down.

Occasionally,

the

frequency

may

not

change

due

to

microprocessor

transients.

The

frequency

shift

control

is

used

to

designate

repeater

operation

(where

the

transmit

frequency

is

different

than.the

receive

frequency),

and

also

selects

the

tuning

rate

of

the

main

dial

(10

kHz

or

1

MHz).

:

Note:

If

the

repeater

offset

would

place

the

transmit

frequency

outside

the

tuning

range

of

the

transmitter,

simplex

operation

will

automatically

selected

by

the

microprocessor.

Controi

Position

Operation

—20

MHz

TX

offset

(Versions

other

than

below)

+33

MHz

TX

offset

(European

version)

10

kHz

level

is

changed

with

the

dial.

1

MHz

level

is

changed

with

the

dial.

The

shift

control

also

determines

how

much

the

dial

frequency

will

change

when

one

of

the

microphone

UP/DWN

pushbuttons

is

depressed.

In

the

SHIFT

and

kHz

positions

the

frequency

is

changed

|O

kHz

each

time

a

button

is

pressed

in

VFO

B;

and

20

kHz

in

VFO

A.

In

the

MHz

position

the

frequency

is

changed

in

1

MHz

steps

regardless

of

which

VFO

has

been

selected.

@

RIT

Control

©)

POWER/VOL

control

—

POWER/VOL

—

G)

ore

PS

©

SQUELCH

control

@upP

88

V

@DWN

®NC

@STBY;(PTT)

@GND

Omic

—

(mic)

GND

Front

panel

side

view

TONE

switch

TONE

@)

RIT

switch

RIT.

Q

Display

Transmit/Receive

frequency

®

Channel

display

When

the

RIT

switch

is

ON,

the

received

frequency

can

be

varied

approximately

+5

kHz.

(The

shift

is

not

indicated

in

the

display)

When

the

control

is

at

approximately

12

o'clock

('’0’’),

the

received

frequency

‘is

the

same

as

the

transmit

frequency.

When

the

control

is

turned

clockwise,

the

receive

frequency

is

higher

than

the

displayed

frequency,

and

when

the

control

ig

turned

counterclockwise

the

receive

fre-

quency

is

lower

than

the

displayed

frequency.

Normally,

this

control

is

set

to

the

‘’0”

position.

pees

The

power

ON/OFF

switch

alsq

functions

as

the

volume

control.

Turning

the

control

fully

counterclockwise

will

turn

the

volume

down

and

the

power

off.

Clockwise

rota-

tion

of

the

control

will

increase

the’audio

level.

To

conserve

battery

power,

turn

the

~

radio

off

during

periods

of

inactivity:

The

squelch

control-is

used

to

eliminate

background

noise

during

no

signal

periods.

Normally;

this:

control’

is

adjusted

clockwise

until

the

background

noise

just

dissap-

“pears.

This

point

is‘known’as'

the

‘‘Threshold

Point’’.

The

radio

must

be

adjusted

to

this

position

for

scanning

functions

to

operate

properly.

For

weak

signal

reception

rotate

the

control

counterclockwise

from

the

‘‘Threshold

point’’,

so

that

background

noise

appears.

This

will

allow

signals

to

be

heard

that

are

too

weak

to

‘’Open”’

the

squeich.

Microphone

audio

input.

Frequency

UP/DWN

control

and

PTT

lines

are

included.

assignments

of

the

MIC

connector

are

shown

at

left.

When

this

switch

is

pressed,

a

tone

signal

is

transmitted,

that

corresponds

with

the

local

repeater

requirements.

For

European

models

a

1750

Hz

tone

burst

is

transmit-

ted.

For

US

models

a

sub-audible

tone

signal

is

transmitted.

US

models

require

use

of

the

optional

TU-6

tone

module.

When

this

switch

is

ON,

the

RIT

annunciator

lights

in

the

display,

and

the

received

fre-

quency

can

be

varied

with

the

RIT

control.

(See

4

above).

To

turn

OFF

the

RIT,

press

the

switch

again.

-ji¢

a

OFC

Ms

wf,

JCUO

SG

°

BUSY

1

3 5

S&RF

10

BATT

1260.00

MHz

is

displayed

as

’’60.00’'.

Memory

channel

‘'1-5’‘

or

VFO

A

'’A

“

and

VFO

B

“’

&

“’

are

displayed.

(©.

°S/RF

and

BATT

meter

.

RIT/ON.

indicator

ERASE

indicator

‘ALERT

indicator

MR

indicator

MS

indicator

ee

6@

6

8

©

@

‘M

indicator

@)

Keyboard

@

MR/M1

(Memory

Recall)

key

[RTM]

a

|

@®

MS/M2

(Memory

Scan)

key

==

©

&/M3

(Erase)

key

(EITM)

|

1).

During-receive,

the

input

signal-strength

is

shown-on:

the:

bar-graph:.»

~2)--

During.

transmit,

the

relative

transmit

RF

level

output

is

shown.by

the bar

graph.

3)

The

battery

or

external

power

supply

voltage

is

shown

by

the

bar

graph.

When

the

BATT

switch

on

the

rear

is

set

to

ON,

the

graph

indicates

the

approximate

battery

--voltage

remaining:

When

two:of

the

long

bars

dissappear,

itindicates

that

approx-

imately-10-volts

remain,

and-it

is

therefore

time

to

recharge

or

replace

the

battery.

Note:

The

bar

graph

-willnot

‘indicate

voltages

below

10-volts

accurately.

Therefore,-

whenever

the:

voitage

drops

to

10

volts,

recharge

or

replace

the

.

battery.

:

This

lights:

when:.the

RIT:switch.is

on.

This

lights

when

the

ease

nin

is

active.

This

lights

ae

alert

operation.

This

lights

during

memory

recall

mode.

This

fights

during

memory.

a

This

lights

during

memory

storage

operations.

Note:

There

is

a

difference

in

the

appearance

of

the

S/RF

bar

graph

and

the

other

indicators.

This

is

normal:and:is

not

a

defect.

Used

to

initiate

memory

recall

operations.

This

key

is

also

used

to

select

M1.

When

this

key

is

pressed,

an

audio

‘’beep’’

is

generated,

and

the

‘’»MR’’

annunciator

lights.

The

display

will

sequentially

show

those

channels

that

currently

have

data

stored.

To

select

one

of

the

channels

simpley

press

the

corresponding

key

(1-5).

A

“beep’’

will

sound,

the

display

will

show

the

contents

of

the

memory

channel,

and

display

the

memory

channel

number.

If

a

channel

with

no

data

is

selected,

the

display

frequency

will

not

change

and

3

beeps

will

sound

to

signal

an

error.

Used

to

initiate

memory

scan.

This

key

is

also

used

to

select

memory

channel

2,

M2.

When

this

key

is

pressed

in

other

than

the

MR

mode,

a

‘‘beep’’

will

sound,

the

‘“’y

MS”

annunciator

will

light

and

memory

channels

with

data

stored

in

them

will

be

sequentially

scanned.

If

a

signal

is

present

on

one

of

these

channels,

the

radio

will

pause

for

approximately

5

seconds,

the

busy

indicator

will

light,

and

then

scan

will

resume.

To

stop

scan,

press

the

PTT

switch

or

the

neal

key.

Used

to

erase

data

from

memory.

This

key

is

also

used

to

recall

memory

channel

3,

M3.

When

this

key

is

pressed

in

other

than

the

MR

mode,

and

“‘beep

will

sound,

the

“44”

annunciator

will

light,

and

those

memory

channel

numbers

with data

stored

will

be

sequentially

displayed.

To

check

the

contents

of

one

of

these

channels

press

the

corresponding

key

(1-5,

0).

A

‘‘beep’’

will

sound,

and

the

memory

channel

number

and

contents

will

be

displayed.

If

you

wish

to

erase

this

data,

press

the

ikey,

again.

An

‘’R”

will

sound

in

Morse

Code

the

contents

of

the

memory

channel

will

be

cleared,

and

the

radio

will

return

to

VFO

operation.

If

you

decide

not

to

clear

a

memory

chan-

nel,

press

the

fl

key

to

cancel

the

procedure.

@

M/M4

(Memory

Input)

key

2

ERISA!

Fa

-@

°C

(Clear)

key

-

@

REV

(Reverse)

key

E=4

@_

AJB

(VFO

selector)

key

ES

|

®

ALMS

(Alert)

key

This

key

is

used

to

initiate

memory

storage.

See

section

5,

on:page16'

for

further

in-

formation.

During

merienen

recall

aperelions

this

key

is

used

to

recall

memory

channel

4,

M4.

This

key.

is

used*to

cancel

any.

procedure

before

completion.

‘+)>

(When

this

ey

is

pressed

during:

h

MR

BR

Sperauene:

operation

will

be

returned

to

VFO

A

or

VFO:B.

2)

When

this:key

is

pressed:during

MS

operations,

operation

will

be

returned

to

MR.

3)

When

this

key

is

pressed

during

E

operations,

operation

will

be

returned

to

VFO

A

or

VFO

B.

4)

“When

this

key

is‘pressed

during

M‘operations,

operation

will‘be

réturnéd

to

VFO

A

or

VFO

B.

This

key

is

used

to

check

the

input

of

a

repeater

pair.

This

fineton

all

loves

you

to

determine

if

simplex

communications

are

possible.

ns

Used

to

‘select

VFO

A

or

VFO

B.

Each

time

the

key

is

depressed,

the.

VFO

‘is

alternated

from

A

to

B,

BtoA...

The

initial

frequency

setting

and

step

width

are

as

follows:

Frequency

Display

Step.

Width

-VFOA

-

1260

MHz

"§0.00R"’

20

kHz

>»

VFO'B

“.1295:MHz

*95,005"'

10

kHz

The

above

values

are

selected

when

the

reset

button

is

depressed

or

the

Lithium

bat-

tery

is

replaced.

When

this

key

is

depressed

in

other

than

the

MR

mode,

the

alert

indicator

will

light,

-

and

the

receiver

will

switch'to

the

frequency

stored

in

memory

channel

M1

once

ap-

“proximately

every.

6°

seconds.

If

activity

is

present

on

M1,

"2

Beeps’’

will

sound

to

“““alert

you

to

that'activity.

Memory

channel

5,

M5,

is

used

to

store

both

the

transmit

and

“seceive

frequencies,

so

that

repeaters

with

other

than

the

normal

offset

may

be

used.

For

specific

details

refer

to

section

5,

page

18.

@

REAR

PANEL

(2

LAMP/BATT

switch

LAMP

When

the

switch

is

in

the

BATT

position,

the

S/RE

meter

function

can

not

be

used.

(3

EXT.

SP

(External

Speaker)

jack

©)

()

OPEN/LOCK

screw

SEONG

(3

EXT

DC/CHG

terminal

(8

Shorting

Plug

This

switch

is

used

to

check

battery

voltage

with

the

LCD

bar

graph,

and

also

to

turn

on

the

display

lamp.

When

the

switch

is

in

the

LAMP

position

the

display

is

illuminated.

When

the

switch

js

in

the

BATT

position

the

lamp

is

turned

on

and

the

BATT

voltage

can

be

checked

_.on

the

display.

To

conserve

the

battery,

do

not

use

the

lamp

uniéss

it

is

necessary.

,

External

speaker

terminal.

Connect

a

4-16

ohm

speaker

using

the

supplied

speaker

plug,

if

desired.

Used

to

secure

the

battery

compartment

cover.

Ensure

this

latch

is

securely

fastened

when

using

battery

power.

Dual

purpose

jack.

Used

to

charge

the

Ni-Cad

battery

pack

(PB-16),

and

to

connect

an

external

DC

supply

(using

the

supplied

DC

cable

assembly).

Use

caution

when

connecting

to

an

external

supply.

Do

not

reverse

the

polarity.

Must

be

installed

whenever

using

battery

power.

If

the

plug

is

not

installed

the

radio

will

not

function.

m

MICROPHONE

@up

@DWN

©8V

@STBY

(PTT)

®NC

mic

@GND

(mic)

@GND

Plug

side

view

q)

UP/DWN

(Up/down)

switch

1)

Depressing

thé

Up

or

the

Down

key

will

shift

the

frequency

one

step.

Step

size

is

determined

by

the

VFO

and’

Shift

switch

settings.

:

2)

Holding

the

Up

or

DWN

key

depressed

for

about

one

second.

will

initiate

the

band

scan

function.

3)

Depressing

the

Up

or

DWN

key

during

MR,

M,

or

E

operations

will

return

the

radio

-

to,

VFO

operation.

ie

PTT

switch

This

switch

is

used

to

initiate

transmit.

The

switch

also

functions

to

stop

scan.

If

scan

is

active

and

the

PTT

switch

is

depressed

one

time,

the

scan

will

stop,

without

actually

transmitting

on

the

air.

Subsequent

use

of

the

PTT

switch

will

initiate

transmit.

Belt

hook

(For

attaching

the

Se.

wn

shoulder

strap)

1)

Install

the

Buckle

as

shown

in

Figure

1.

2)

Slide

on

the

retainer

as

shown

in

Figure

2.

3)

Pass

the

strap

thru

the

Metal

Fixture

then

back

thru

the

retainer,

and

finally

thru

the

buckle,

as

shown

in

Figure

3.

4)

The

strap

length

may

be

easily

adjusted

by

loosening

the

buckle,

and

sliding

the

retainer

up,

as

shown

in

Figure

4.

Strap

3

Fig

)

Retainer

10

Kenwood TR-50 User manual

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