Kenwood TS-950SDX User manual

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HF

TRANSCEIVER

TS-950SDX

INSTRUCTION

MANUAL

KENWOOD

CORPORATION

PRINTED

IN

JAPAN

B62-0229-20(K,

M,

E,

E

8

2

2,

P,

X)(MC)

93⁄2

1110987654321

921211109876

Thank

you

for

purchasing

this

new

transceiver.

[IMPORTANT

Please

read

this

Instruction

Manual

before

placing

the

transceiver

in

service.

carefully

SAVE

THIS

INSTRUCTION

MANUAL.

The

following

explicit

definitions

apply

in

this

manual:

Note

:

If

disregarded,

inconvenience

only,

no

risk

of

equipment

damage

or

personal

injury.

Caution

:

Equipment

damage

may

occur,

but

not

personal

injury.

i

This

Instruction

Manual

covers

the

following

!

models:

TS-950SDX:

HF

TRANSCEIVER

with

the

,

SO-2,

YK-

880-1,

YG-455C-1,

and

YG-455S-1,

are

included

in

this

transceiver

as

standard

equipment.

FCC

WARNING

This

equipment

may

generate

or

use

radio

frequency

energy.

Changes

or

modifications

to

this

equipment

may

cause

harmful

interference

unless

the

modifications

are

expressly

approved

in

the

instruction

manual.

The

user

could

lose

the

authority

to

operate

this

equipment

if

an

unauthorized

change

or

modification

is

made.

i

Note

This

equipment

has

been

tested

and

found

to

comply

with

the

limits

for

a

Class

B

digital

device,

pursuant

to

Part

15

of

the

FCC

Rules.

These

limits

are

designed

to

provide

reasonable

protection

against

harmful

interference

in

a_

residential

installation.

This

equipment

may

cause

harmful

interference

to

radio

communications,

if it

is

not

installed

and

used

in

accordance

with

the

instructions.

However,

there

is

no

guarantee

that

interference

will

not

occur

in

a

particular

installation.

if

this

equipment

does

cause

harmful

interference

to

radio

or

television

reception,

which

can

be

determined

by

turning

the

equipment

off

and

on,

the

user

is

encouraged

to

try

to

correct

the

interference

by

one

or

more

of

the

following

measures:

=-

Reorient

or

relocate

the

receiving

antenna.

=

Increase

the

separation

between

the

equipment

and

receiver.

ie

Connect

the

equipment

into

an

outlet

on

a

circuit

different

from

that

to

which

the

receiver

is

connected.

~~

Consult

the

dealer

or

an

experienced

tadio/TV

technician

for

help.

CONTENTS

3

5

5

6

7

7

Fa

10

4.

10

4-2.

21

4-3.

3

4-4.

38

4-5.

42

4-6.

CW

message

function

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

44

4-7.

Voice

Recording

using

the

DRS

function

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

45

4-8.

REPEATER

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

47

4-9.

OPERATION

WITH

A

PERSONAL

COMPUTER

venais

siuii

etree

¥

47

4-10.

VOICE

SYNTHESIZER

.

nao

48

4-11.

DIGITAL

MODULATION

FUNCTION

...

48

4-12.

Transfer

function

when

two

TS-950SDX

transceivers

are

connected

together

..

49

4-13.

When

used

as

the

master

machine

for

the

TANSVEHCE:

keie

leach

aupin

inan

5

5.

MAINTENANCE

AND

ADJUSTMENTS

.....

52

5-1.

GENERAL

INFORMATION

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

52

622

SERVICE

«seve

e

titra

rae

TAEKE

E

52

pok

CLEANING:

reest

aseak

Aaa

52

5-4.

IN

CASE

OF

DIFFICULTY

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

53

5-5.

ORDERING

SPARE

PARTS........

54

5-6.

ADJUSTMENTS

araea

onkr

54

6.

OPTIONAL

ACCESSORIES

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

58

6-1.

DRU-2

DIGITAL

RECORDING

UNIT

INSTALLATION

-e

oee

ian

oan

aE

EA

58

6-2.

OPTION

FILTER

INSTALLATION.......

58

6-3.

VS-2

VOICE

SYNTHESIZER

INSTALLATION

......0....

0.000000

0

59

6-4.

OTHER

ACCESSORIES..

..

60

7,

REFERENCE

verad

a

ake

ang

eah

pe

a

ead

62

|

WARNING

i

To

prevent

fire

or

shock

hazard,

do

not

expose

;

[this

appliance

to rain

or

moisture.

Safty

precautions

WARNING:

TO

PREVENT

FIRE

OR

ELECTRIC

SHOCK,

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOISTURE.

|

i

CAUTION

i

CAUTION:

TO

REDUCE

THE

RiSK

OF

ELECTSIC

SHC

a

CEE

(OR

BACK).

NO

USER-SERV-CZABLE

PARTS

NSIDE

REFER

SE

DO

NOT

OPEN

FIED

SERVICE

PERSONNEL.

|

THE

LIGHTNING

FLASH

WITH

ARROWHEAD

SYMBOL,

WITHIN

AN

EQUILATERA

|

INTENDED

TO

ALERT

THE

LSER

TO

THE

PRESENCE

OF

UNINSJLATED

|

WITHIN

THE

PSODUCT'S

ENCLOSURE

THAT

MAY

BE

OF

SUFFICIENT

M

TUTE

A

RISK

OF

ELECTRIC

SHOCK

TG

PERSONS

ED

TO

ALERT

THE

USEP

NCiINSTRLCTIONS

|

THE

EXCLAMATION

POINT

WITHIN

AN

EQUILATERAL

T3IANGLE

IS

NTER

TO

THE

PRESENCE

OF

IMPORTANT

OPERATING

AND

MA

NTENANSE

ISERVICI

IN

THE

LITERATURE

ACCOMPANYING

THE

APPLIANCE

IMPORTANT

SAFEGUARDS

Caution

:

Read

this

Rage

carefully

to

ensure

Please

read

all

of

the

safety

and

operating

instructions

4.

Electric

shock

—

Care

sheula

be

taken

so

that

ob-

before

operating

this

unit.

For

best

results,

follow

all

jects

do

not

fali

anc

liquid

is

not

spillea

into

the

en-

warnings

placed

on

the

unit

and

adhere

to

the

operat-

closure

through

openings.

If

a

metal

object,

such

as

ing

and

use

instructions.

These

safety

and

operating

in-

a

hair

pin

or

2

needie,

comes

into

contact

with

the

structions

should

be

retained

for

future

reference.

inside

of

this

unit,

a

dangerous

electric

snack

may

result.

For

families

witn

chiidren,

never

permit

chil-

1.

Power

sources

—

The

unit

should

be

connected

dren

to

put

anytning,

esoecially

metal,

‘nsice

ths

to

a

power

supply

only

of

the

type

described

in

the

unit

Operating

instructions

or

as

marked

on

the

appliance.

2.Power-cord

protection

—

Power-supply

cords

should

be

routed

so

that

they

are

not

likely

to

be

walked

on

or

pinched

by

items

placed

upon

or

against

them,

pay

particular

attention

to

cords

at

plugs,

convenience

receptacles,

and

the

point

where

they

exit

from

the

unit

5.

Grounding

or

polarization

—

The

orecautiors

Naver

puil

or

stretch

A

the

cord.

should

be

taken

so

that

the

grounding

or

polariza-

tion

means

of

this

unit

is

not

defeatec

6.

Ventilation

—

The

un't

should

be

situated

so

that

ts

location

or

position

does

noi

interfere

with

its

proper

ventilation

3.

Abnormal

smell

—

If

an

abnormal

smell

or

smoke

To

maintain

good

ventiation,

do

not

put

records

or

is

detected,

immediately

turn

the

power

OFF

and

pull

a

table-cloth

on

the

unit.

Place

the

unit

at

least

out

the

power

cord.

Contact

your

dealer

or

nearest

serv-

4

inches

(10

cm}

away

from

the

walls

ice

center.

Do

not

use

the

unit

on

a

bed,

sofa,

rug

or

similar

POWER

OFF!

surface

that

may

block

the

ventilation

openings

Å

Caution

:

Read

this

page

carefully

to

ensure

safe

7.

Enclosure

removal

—

Never

remove

the

en-

closure.

If

the

internal

parts

are

toucned

ac-

cidentally,

a

serious

electric

sheck

might

occur.

8.

Water

and

moisture

-

The

unit

should

not

be

used

near

water

for

example,

near

a

bathtub,

washoowl,

kitchen

sink,

laundry

tub,

in

a

wet

base-

ment,

or

near

a

swimming

pool,

ete.

9.

Outdoor

antenna

grounding

—

If

an

outside

an-

tenna

is

connected

to

the

receiver,

be

sure

the

an-

tenna

systern

is

grounded

so

as

to

pravide

some

protection

against

voltage

surges

and

built

up

static

charges.

Section

810

of

the

National

Electrical

Code,

ANSI/NFPA

70,

orovides

information

with

respect

to

proper

grounding

of

ihe

mast

and

sup-

porting

structure,

grounding

of

the

lead-in

wire

ta

an

antenna

discharge

unit,

size

of

grounding

con-

ductors,

location

of

antenna-discharge

unit,

con-

nection

to

grounding

electrodes,

and

requirements

for

the

grounding

siectrode.

See

the

accompany-

ing

illustration.

EXAMPLE

DF

ANTENNA

GROUNDING

AS

PER

NATIONAL

ELECTRICAL

CODE

——

ANTENNA

LEAD

IN

WIRE

GROUND

ANTENNA

DISCHARGE

UNIT

(NEC

SECTION

810-20)

ELECTRIC

SERVICE

EQUIPMENT

-———__

GROUNDING

CONDUCTORS

INEC

SECTION

819-21)

GROUND

CLAMPS

aa

POWER

SERVICE

GROUNDING

ELECTRODE

SYSTEM

NEG

—

NATIONAL

ELECTRICAL

CODE

IMEC:

AAT

250,

PART

Hi

10.

Power

lines

—

An

outdoor

antenna

should

be

lo-

cated

away

‘rom

power

lines

operation.

11.

Heat

—

The

unit

should

be

situated

away

from

heat

sources

such

as

radiators,

heat

registers,

stoves,

or

other

units

lincluding

amolifiers)

that

produce

heat.

12.

Cleaning

—

Do

not

use

volatile

solvents

such

as

alconol,

paint

thinner,

gasoline,

or

benzine,

etc.

i0

clean

the

caginet.

Use

a

clean

dry

cloth

13.

Nonuse

periods

—

The

power

cord

of

the

unit

should

be

unplugged

from

the

outlet

when

left

un-

used

for

a

iong

pericd

of

time

14.

Servicing

—

The

user

should

not

attempt

to

ser-

vice

the

unit

beyond

that

described

in

the

operating

instructions.

All

other

servicing

should

be

referred

to

gualified

service

personnel.

15.

Damage

requiring

service

—

The

unit

snould

be

serviced

by

qualified

service

personnel

when:

A.

The

power-supply

cord

or

the

plug

has

been

damaged;

or

B.

Objects

nave

fallen,

or

liquid

has

been

spilled

inte

the

unit;

or

C.

The

unit

nas

been

exposed

to

rain,

or

D.

The

unit

dees

not

appear

to

operate

normally

or

exhibits

a

marked

change

in

performance:

or

E.

The

unit

has

been

dropped,

or

the

enclosure

damaged.

SPECIFICATIONS

AND

ACCESSORIES

2-1.

SPECIFICATIONS

General

a

Mode

Memory

Channels

Antenna

impedance

Power

requirement

Power

dissipation

Receive

mode

with

no

input

signal

Transmit

mode

Operating

temperature

Frequency

stability

Frequency

accuracy

J3E

(LSB,

USB

}

ATA(CW),

ASE(AM)

F3E(FM)

FIA(FSK)

100

Channels.

50

ohms.

(With

Antenna

Tuner

20™150

ohms.)

K

and

P

type

(IZOVAC

+10%)

M

type

(120/230VAC

£10%)

E

type

(230VAC+10%)

T

type

(220/240VAG

+

10%)

X

type

(120/240VAC

+

10%)

TOW

700W

(7.5A)

—10

to

+50°C

(+14

to

+

122°F)

Less

than

£0.5

PPM.

Less

than

£0,5

PPM.

Dimensions

(WX

H

XD)

409

X154

x

446mm

(Projections

included

16-3/22"

x

6-1/16"

X17-

:

9/16")

Weight

23kg

(50.6lbs)

Frequency

range

160m

band

80m

band

40m

band

30m

band

20m

band

17m

band

15m

band

12m

band

10m

band

Output

Power

a

i

Transmitter-A

=

=————__

ee

AEE

ARERR

EO

a

|

1.8

to

2.0

MHz

3.5

to

4.0

MHz

7.0

to

7.3MHz

10.1

to

10.15

MHz

14.0

to

14.35

MHz

18.068

to

18.168

MHz

21.0

to

21.45

MHz

24.89

to

24.99

MHz

28.0

to

29.7

MHz

(With

auto

antenna

tuner

in

"THRU"),

1.9~24MHz

SSB,

CW,

FSK,

FM

28MHz

SSB,

CW,

FSK,

FM

20W

(MIN)

AM

10W

(MIN)

20W

(MIN)

40W

(MAX)

10W

(MIN)

AM

150W

(MAX)

40W

(MAX)

HOW

(MAX)

Transmitter-B

=

=———____

SSB

Balanced

modulation.

Modulation

FM

Reactance

modulation.

AM

Low

level

modulation.

Spurious

radiation

Less

than

—

40dB

Carrier

suppression(with

1.5kHz

reference.)

More

than

50dB

Unwanted

sideband

suppression

(with

1.5kHz

reference)

More

than

60dB.

i

Maximum

frequency

deviation

(FM)

Less

than

+5kHz.

Frequency

response

(~

6dB)

100

to

3100Hz.

+9.99kHz.

250

ohms

to

600

ohms.

XIT

variable

range

Microphone

impedance

en

j

Receiver-A

Circuitry

Main

SSB,

CW,

FSK,

AM

Quadruple

conversion

superheterodyne.

Triple

conversion

superheterodyne.

Double

conversion

superheterodyne.

100kHz

to

30MHz.

FM

Sub

SSB,

CW,

FSK

Frequency

range

Intermediate

frequency

Main

ist

:

2nd

:

3rd

Ath

Sub

lst

:

2nd:

73.05MHz

8.83MHz

455kHz

100kHz

40.055MHz

10.695MHz

Sensitivity

SSB,

CW

(at

10dB

S

+

N/N)

100kKHz~150kHz

150kHz~490kHz

490kHz~1.62MHz

1.62MHz~30MHz

AM(at

10¢B

S

+

N/N)

100kHz~150kHz

150kHz~490kHz

490kHz~1.62MHz

1.62MHz~30MHz

FM(at

12dB

SINAD)

28MHz~30MHz

Note

USA

version

only

:

490kHz~1.62MHz

—

490kHz~1.705MHz

,

1.62MHz~30MHz

—1.705MHz~30MHz

Less

than

2.5

nV

Less

than

1

gV

Less

than

4

yV

Less

than

0.2

nV

Less

than

25

xV

!

Less

than

10

xV

Less

than 32

pV

Less

than

2.0

nV

Less

than

0.5

pV

2-2.

ACCESSORIES

;

i

ee

;

æ

Receiver-B

Unpack

your

TS-950SDX

carefully

and

confirm

Selectivity

that

it

is

supplied

with

the

following

accessories.

SSB,

AMIN),

FSK

—6dB

:

2.4kHz

Quick

Key

Board

(RM-1)

SORR

E

X60-3240-00

lea

AM(W)

—6dB

:

6kHz

ink

Hs

ae

i

Dynamic

microphone

0008

7

MSKHZ

T91-0352-15

1ea

CWIW)

—6dB

:

400Hz

F

aa

g

DIN

plug

(7-pin}

—60dB:

900Hz

Sree

eae

E07-0751-05

....

tea.

—60dB:

IK

DIN

plug

(13-pin)

:

5

E07-1351-05

....

tea.

Image

ratio

...........

More

than

80dB.

Fuse

(GAMM

type

eee

fea

|

Ist

IFrejection

........

More

than

70dB.

Control

location

sticker

Aat

'

|

Notch

filter

attenuation

..

More

than

45dB.

|

B42-3371-04

lea

RIT

variable

range

.....

+9.99kHz

|

:

ange

f

instruction

Manual

sh

B62-0229-XX

....

1

copy.

ear

Le

External

control

Instruction

Manual

100kKH2~150kHz

Less

than

6.3

gV

Crito

dm

Boer

ess

KX

r

TORY:

150kHz~490kHz

Less

than

2.5

„V

3

hestas

iadh

490kHz~1.62MHz_

Less

than

10g

V

iiag

y:

1.62MHz~30MHz

Less

than

0.5

nV

MENU

KEY

DISPLAY

EIST

ee

sou

B59-0456-XX

....

1

copy.

FM

28MHz~30MHzz

Less

than

0.32

nV

|

Warranty

card

Sheer

ants

(U.S.A.,

Canada

and

Europe

version

only)

1

ea.

i

USA

version

only

:

-490KHz2~1.62MHz

—

490kKHz~1.705MHz

:

|4.62MHz~30MHz

—>1.705MHz~30MHz

Attach

the

control

location

sticker

on

the

upper

L

zt

case

where

it

can

be

easily

seen

.

Note

Output

1.5W

across

8

ohms

P

load.

(10%

distortion)

|

After

unpacking

Output

toad

impedance

8

ohms.

Shipping

container:

,

Save

the

boxes

and

packing

in

the

event

your

unit

Notes

GAR

`

needs

to

be

transported

for

remote

operation,

i

A A

intenan

ice.

1.

Circuit

and

ratings

are

subject

to

change

without

maintenance.gr

sefyi

notice

due

to

advancements

in

technology.

2.

Remember

to

keep

the

transmitting

output

power

within

the

power

limitations

of

your

license.

--—---

-|

For

United

Kingdom

—,

The

mains

plug

must

be

removed

from

the

wall

socket

prior

to

any

internal

examination.

|

WARNING

:

THIS

APPARATUS

MUST

BE

EARTHED.

Important

:

The

wires

in

this

mains

lead

are

coloured

in

accordance

with

the

following

code:

Blue

Neutral

Brown

Live

Green-and-Yellow

..

Earth

'

The

wires

in

this

mains

lead

must

be

connected

to

the

terminals

in

the

plug

as

follows:

Green-and-Yellow

or

Green

Blue

to

Neutral

Wire

colour

Plug

terminal

marking

Green-and-yellow

i

Blue

greri

rs

Letter

N

or

coloured

Black

tora

l

Brown

...........

Letter

L

or

coloured

Red

rane

to

|

|

Green-and-Yellow

..

Letter

E

or

ak

or

coloured

|

|

Plug

3.

INSTALLATION

AND

CONNECTION

3-1.

INSTALLATION

HEFRONT

FEET

By

extending

the

front

feet,

the

front

panel

can

be

elevated

for

operating

convenience.

Turn

the

front

feet

left

and

pul!

down.

Then

turn

right

to

lock.

3-2.

CONNECTION

The

TS-950SDxX

is

supplied

to

operate

from

a

120V

AC,

220V

AC

or

240V

AC

50/60

Hz

power

source

capable

of

supplying

700

watts

or

more.

o

io

i

Note

|

U.S.A.

versions

of

this

radio

are

equipped

with

a

non-

i

switchable

120VAC

60Hz

power

supply.

Front

feet

extension

A.

Rear

Panel

To

antenna

—

4

(option)

==

To

Linear

etc

er

Sp

PAE

K

T

7

i

~

Data

communications

device

==

Grouna

Ss

£

i|

o=

J

QUICK

KEY

BOARD

YF

Key

BY,

=

g

Exciter,

TS-950SDX

TL-922A

e

AC

line

Ground

bus

|

RF

output

CAUTION:

—_

Qo

not

connact

the

power

cable

when

the

TL-922A

POWER

switch

is

ON.

TL-922/922A

LINEAR

AMPLIFIER

CONNECTION

To

Antenna

SM-230

STATION

MONITOR

CONNECTION

_

(1)

Antenna

Caution

Protect

your

equipment

---

Use

a

LIGHTNING

ARRESTER.

The

type

of

antenna

that

is

used

will

greatly

affect

the

performance

of

the

transceiver.

Use

a

properly

adjusted

antenna,

of

good

quality,

to

enable

your

transceiver

to

perform

at

its

best.

The

antenna

input

impedance

is

50

ohms.

Use

50-ohm

coaxial

cable

such

as

RG-8

or

5D-2V

for

this

connection.

If

the

antenna

is

far

from

the

transceiver

the

use

of

low

loss

coaxial

cable,

such

as

10D-2V

is

recommended.

Match

the

impedance

of

the

coaxial

cable

and

that

of

the

antenna

so

that

the

SWR

is

less

than

1.5

to

1.

The

protection

circuit

in

the

transceiver

will

activate

if

the

SWR

is

particularly

poor

(greater

than

3

to

1).

A

high

SWR

value

will

cause

transmitter

output

to

drop,

and

may

lead

to

TVI

or

BCI

reports.

(2)

Grounding

Caution

Never

use

a

gas

pipe

or

electrical

conduit

pipe

for

ground

connection.

Notes

1.

A

ground

connection

that

is

a

1/4

wavelength

or

its

multiple

may

provide

a

good

DC

ground,

but

it

will

not

provide

a

good

RF

ground.

2.

A

city.

water

pipe

cannot

be

used

as

a

good

į

earth

in

some

cases.

|

j

Making

a

good

earth

connection

is

important

for

preventing

dangers

such

as

electric

shock

and

for

emitting

a

high

quality

signal

with

minimum

spurious

radiation.

Bury

a

commercially

available

ground

rod

or

copper

plate

under

the

ground

and

connect

it

to

the

GND

terminal.

A

thick

wire,

cut

as

short

as

possible,

should

be

used

for

the

connection.

To

make

a

good

earth

connection,

connect

the

GND

terminal

to

a

grounded

metal

water

pipe.

(3)

External

speaker

The

TS-950SDX

includes

a

built-in

speaker.

If

you

would

like

to

use

an

external

speaker,

such

as

the

SP-

950,

it

may

be

connected

to

the

EXT

SP

jack

on

the

rear

of

the

radio.

The

speaker

may

be

any

good

8

ohm

permanent

magnet

type

speaker.

The

diameter

should

be

at

least

4

inches

for

good

audio

quality.

If

you

plan

on

using

a

speaker

other

than

the

SP-950,

it

should

be

equipped

with

a

miniature

phone

jack

plug.

(diameter

3.5

mm}

E

External

Speaker

and

Voice

Outputs

Using

an

external

speaker,

you

can

switch

the

MAIN

and

SUB

voice

outputs.

To

switch

the

voice

outputs,

use

the

MENU

key

as

follows:

MENU

operation

1.

Press

the

MENU

key.

2.

Adjust

the

M.CH/VFO

CH

control

to

select

menu

number

06.

The

SUB

frequency

display

will

then

show

the

current

setting.

3.

Use

the

UP/DWN

switches

to

select

the

desired

function.

4,

Press

the

MENU

key

again

to

complete

this

MENU

operation.

Settings

and

speaker

outputs

T

Selection

Internal

speaker

|

External

speaker

:

OFF

'

MAIN

and

SUB

MAIN

and

SUB

1

SUB

(and

MAIN

(and

i

j

“MAIN")

”“SUB")

i

!

2

SUB

MAIN

1.

The

parenthesses

in

the

above

table

indicate

the

|

band

whose

output

volume

is

smaller

compared

with

when

you

select

OFF.

To

increase

the

volume,

turn

the

AF

control

for

that

band

clockwise.

‘2.

If

setting

1

or

2

is

selected,

the

internal

|

speaker

does

not

beep

for

any

key

operation.

$

“Notes

|

i

|

i

(4)

Key

connection

Your

key

should

be

connected

as

illustrated

in

the

figura

below.

When

using

an

electronic

keyer,

make

sure

that

it

is

set

for

positive

keying.

Always

use

shielded

line

from

the

key

to

transceiver.

(plug

diameter

is

6.0

mm)

WiTo

use

externa!

straight

key

+5V,

Contact

Current

about

a

a

a

i

i

Ground

Not

used

+

or

+5V,

Contact

Current

about

A

A

:

i

Ground

B.

Front

Panel

|See

Section

4-3-6

for

additional

CW

key/

keyer

|

connection

information

and

diagrams.

|

Note

Check

the

polarity

of

the

plug

when

you

use

an,

electronic

keyer.

|

Headphone

Microphone

(1)

Headphones

Any

low-impedance

(4-16

ohms)

headphones

may

be

used

with

the

transceiver.

Connect

the

headphones

to

the

front

panel

PHONES

jack.

(diameter

6.0

mm).

The

optional

HS-5

or

HS-6

headphones

are

best

suited

for

use

with

the

transceiver.

Stereo.

type

headphones

can

also

be

used.

When

using

Stereo

headphone

the

main

band

will

be

heard

on

one

side

and

the

sub-band

on

the

other

side.

If

the

sub-band

is

turned

off

no

audio

will

be

heard

on

the

sub-band

side.

(2)

Microphones

Any

microphone

with

an

impedance

between

250

Q

to

600

Q

may

be

used

with

this

transceiver.

The

KENWOOD

microphones

MC-43S

(handheld),

MC-

60A,

MC-80,

MC-85,

MC-90

{table-top

type)

are

recommended.

4.

OPERATION

4-1.

OPERATING

CONTROLS

4-1-1.

Front

Panel

Note

Ail

segments

on

the

Display

Panel

and

Indicators

are

shown

for

this

explanation.

NA

LEYE.

usin

=

sue

AGC

Qe

«EY

SPEED

lo

EE

T

=

|

a

2

©

8

®

@

POWER

switch

Press

to

turn

the

power

ON

or

OFF.

@

ATT

(Attenuator)

switch

When

the

incoming

receive

signal

is

very

strong,

the

signal

should

be

attenuated

to

prevent

distortion

of

the

signal,

thereby

stabilizing

the

receiver

performance.

This

is

easily

done

by

activating

the

ATT

switch.

This

control

is

also useful

when

a

strong

signal

is

near

your

desired

signal;

while

some

loss

will

occur

to

the

desired

signal,

as

well

as

the

undesired

signal,

the

use

of

the

attenuator

will

sometimes

allow

you

to

understand

what

is

being

received.

This

switch

allows

attenuation

of

the

input

signal

by

6,

12

or

18

dB.

For

normal

receiver

performance,

this

switch

should

be

in

the

0

dB

position.

10

@

VOX/MAN

switch

VOX

(Voice

Operated

Switch}

operation

is

possible

in

SSB,

AM

or

FM

operations.

Break-in

operation

is

possible

in

CW

operation.

To

activate

the

VOX

circuitry

place

the

VOX

switch

ON

(mm).

@

FULL/SEMI

(Break-in)

switch

This

switch

affects

the

transmit/

receive

recovery

time.

In

the

SEMI

position

the

transceiver

will

key

when

the

key

is

depressed

and

remain

in

the

transmit

position

until

a

preset

delay

has

been

reached.

In

the

FULL

position

the

transceiver

will

switch

back

to

receive

as

soon

as

the

key

is

released,

thus

allowing

you

to

copy

incoming

signals

between

characters.

©

MONI

(Monitor)

switch

Allows

monitoring

of

your

transmit

signal.

©

DIM

(Dimmer)

switch

Selects

the

intensity

of

both

the

digital

display

and

the

meter

illumination,

bright

or

dim.