Sangean ATS-818 User manual

ATS-818

World

Listening

SANGEAN

memo)

DIGITALTUNING.

ALEAND

FW/SuiW

Bro

|ecvaie—

arm

SUZER

warreny

SLEEP

[AUTO

scan]

PLL

SYNTHESIZED

worLbD

BAND

RECEIVER

The

SANGEAN

ATS-818

the

WORLD'S

ONLY

Portable

World

Band

Receiver

offering

features

and

performance

than

many

expensive

table

top

Short

Wave

Receivers.

PLU45|O-|&

(CO

lOlE|@

synneseeo

RADI

inectwven

memory

‘ocx

uct

rime

Ser

|[OUAL

Time]

[FM

STEREO]

art

All

Bands

from

120m

11m

_—_*

Memory

Presets

Gain

Control

Radio/Buzzer

Clock

Alarm

Wide/Narrow

Filter

Dual

Conversion

Receiver

BFO

for

Single

Side

Band

Dual

Time

Display

for

Local

Signal

Strength

Battery

Continuous

Coverage

and

UTC

Time

Indicator

from

150-29999KHz

plus

87.5-

Adjustable

Sleep

Timer

Tone

Control

Safety

Lock

108MHz

Five

Tuning

Methods:

Direct

frequency

Input,

Auo

Scan,

Manual

Scan,

Memory

Recall,

Rotary

Dial

SPECIFICATIONS

]

FREQUENCY

2.300-2.495MH2(120m)

3.200-3.400(90m)

3.900-4000(75m)

4.750-5.060(60m)

5.950-6200MHz(49m)

7.100-7.300(4

1m)

9.500-9.900(3

1m)

11.650-12.050(25m)

413.600-13.800(21m)

15.100-15.600(19m) 17.550-17.900(16m)

21.450-21.850(13m)

25.670-26.100(11m)

SEMI-CONDUCTORS:

LSI,

IC’s,

FET's,

Trans.,

Diodes.

LED

OUTPUT

PWR:

800mW

SPKR:

inch,

ohm

BATTERIES:

4/1.5VDC

“D”

Size

Radio Power

3/1.5VDC

Back-Up

Power

ACCESSORIES:

Adapt,

Ext.

Antenna

Adapt,

Shortwave

HandBook

2651

Troy

Avenue,

South

Monte,

91733

AMERICA,

INC.

Tel:

(818)

579-1600

Fax:

(818)

579-6806

Service|\ianua

TS-818

CONTENTS

Specifications

Disassembly

Instructions

Block

Diagram

......

Alignment

Instructions

spear

Alignment

For

Clock

Time

Accuracy

Alignment

For

PLL

Frequency

.................05.

Alignment

For

2nd

Local

OSC

Alignment

For

2nd

.........

Alignment

For

Alignment

For

Sensitivity

...

Alignment

For

BFO..........26..

Alignment

For

Sensitivity

Alignment

For

MPX

Alignment

For

Indication

Level

Battery

Alignment

For

Signal

Strength

Level

.....

Alignment

For

450kHz

Trap

.....

Alignment

For

Station

Detection

Troubleshooting

Flow

Chart

Wiring

Diagram

Main

PCB

Chip

Side

View

Main

PCB

Top

View...........

Control

PCB

Chip

Side

View

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

Control

PCB

Top

View

....

Speen

Electrical

Parts

List

Semiconductor

Lead

Identifications

Exploded

View

.........

Mechanical

Parts

List..

Circuit

Block

Diagram

...

ICs’

Transistors’

Voltage

List

SChemmatice-

Diagram

wasrseiceesccssacs

acces

eatce

vonie

irene

nsaeacennostasladvaNcancaue

tetutvevavcesceseysseneshnansbghronerssug-cotratemdenetee

SPECIFICATIONS

TEST

ITEM

CONDITION

NOMINAL

LIMIT

UNIT

Tuning

Range

wae

Max

(1080

[20.15

MHz

Intermediate

Freq.

10.7

SOMHz

Max.

Sens.

Usable

Sens.

(S/N

30dB)

Calibration

Dial

Audio

Fidelity

-3dB

(W/Pre-emphasis)

3dB

Limiting

(1mV)

Lowest

Battery Voltage

Max.

Output

Power

MRE

eal

Output

Power

10%

T.H.

98MHz

Alter.

Channel

Select.

100uV

98MHz

Bacal

Stereo

Indicator

Sens.

98MHz

Tuning

inaicator

Sens.

(2nd:

do)

sez

ou]

98MHz

5a20

[eR

375

[Auto

Scanning

Stop

Seng.

Ovenoaed

Capacity:

io:

OMB

AM.

Suppression

(dB)

_——S*YCS

CLEC

eee

eae

nnraae

Petty

Tred

[Tone

Aetion({0kHz)

ape

SIN

(225kHz

Dev)

OMe

80.

elena

Seed

geen

Supply

Voltage:

DCBV___ALO:

50m

TEST

ITEM

CONDITION

NOMINAL

LIMIT

_UNIT

Tuning

Range

Min:

S20

Max.

1620/1710

kHz

Intermediate

Freq.

seas

kHz

Cee

Max.

Sens.

1000kHz

Perea

oes

Lil

dBu/m

dBulm

dByu/m

600kKHz

Usable

Sens.

(S/N

20dB)

dBu/m

1400kHz

dBy/m

£5

Dial

Calibration

NOONE

aps

paper

ese

Avle

ORME

sc8

“7s

Ore

[AGC

IROM:

Serene

aie

ees]

[Image

Rejections

aie

Whistle

Modulation

(SmV/m)

epimeaiee

[is

een

Hom

Modolaboneismvy

Tuning

Indicator

Sens.

(2nd.

dot)

1000KHz_

Auto

Seanning

Stop.

Sens.

tooo

Balin

Tone

Acton:

(Gihiz)

OOO

aia

SIN

Ratio

(SMW

poi

Current

Consumption

ers

Output

Power

10%

T.H.O.

700

Overload

Capacity

(30%

Mod

10%

T.H.D.)

1000kHz

Bandwidth

6dB

(Wide)

Bandwidth

6dB

(Narrow

Supply

Voltage:

R.0.:

50mW

dBu/m

kHz

2.507

kHz

Modulation:

1kHz

30%

Mod.

TEST

ITEM

Tuning

Range

Intermediate

Freq.

Max.

Sens.

Usable

Sens.

(S/N

20dB)

Dial

Calibration

Audio

Fidelity

(-6dB)

A.C.

10kHz)

T.H.

(60

dBp)

A.G.C.

F.O.M.

{86

dBu)

Image

Rejection

S/N

Ratio

(60

dBy)

SSB/CW

Sens.

(S/IN=10dB

Supply

Voltage:

CONDITION

NOMINAL

LIMIT

Min.

1621/1711

2300kHz

15900kHz

25600kHz

15100kHz

F/3

st re

én]

1+]

alo

15100kHz

R.0..

50mW

Load:

ohm

Modulation:

1kHz

30%

Mod.

TEST

ITEM

CONDITION

NOMINAL

LIMIT

UNIT

eee

aes

eee

Tuning

Range

[ae

Ist.lF

55845

Intermediate

Freq.

;

PAG

450

[68

aan

[66

Balen

Ree

dBuim

kee

Max.

Sens.

Usable

Sens.

(S/N

20dB)

Dial

Calibration

218kHzZ

2aikHeZ

Lowest

Battery

Voltage

218kHz

4.2

ERS

eee

Eee

dee

SIN

Ratio

(5mV

218kHz

Bae

Pe ae

Note

Nominal

specs

represent

the

design

specs.

All

units

should

able

approximate

these-some

will

exceed

and

some

may

drop

slightly

below

these

specs.

Limit

specs

represent

the

absolute

worst

condition

that

still

might

considered

acceptabfe

;

case

should

unit

fall

meet

limit

specs.

DISASSEMBLY

INSTRUCTIONS

REMOVE

BACK

COVER

Unscrew

screws

Separate

front

and

back

cabinet.

REMOVE

MAIN

PCB

Remove

screws

Remove

Main

PCB

and

screw

DO.

REMOVE

CONTROL

PCB

Remove

screws

Remove

Control

PCB.

OLVIND

AMBLLYE

dN-nxova

‘av

W3A37

SEOSEO'SUAS-ENAS)

eos

adoLvINd

“ANOS

@/¥

RRR

93I-F51

tora

JOLS

HW.

‘GNI

O3N3LS

B3xv34s

31n4

6-|

43Zz08

sora

SAHK__|

yea

Baa

aines

faa

TOYANGD_NOILINN4/A3x}—\

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ro}

91¥d-S0¥0'904S-E0%S

ZHHPOEYET'S

ran)

xinoa

(1,

rorx

HE]

SoA

2roTro)

1@)

7O¥LNOI

300N

—

209S

SNIHOLIAS|

Leq’ezd

920-£20

“L30/‘dHY

‘L30/3990/‘dH¥

249731

ALIGNMENT

INSTRUCTIONS

Note:

(1)

All

test

points

are

shown

schematic

diagram,

(2)

Load

fresh

batteries

before

any

alignment

procedures.

(1)

ALIGNMENT

FOR

CLOCK

TIME

ACCURACY

Required

Instrument

Frequency

Counter

Alignment

Procedure

[

Adjustment

Procedure

(1)

Turn

the

radio

SLEEP

mode.

(2)

Set

the

SAFETY

switch

upward

electrically

lock

all

push

buttons.

(3)

Remove

the

batteries

from

the

RADIO

BATTERY

compartment.

The

monitor

TIME

BASE

signal

starts

functioning.

(4)

Connect

frequency

counter

15.

(5)

Adjust

TC401

reach

reading

524288

4Hz

(

7.6PPM

20sec/month)

counter,

Instrument

Connection

TC401

Freq.

Counter

Test

Point

Freq.

Counter

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