Drake SW-8 User Guide

4 (1)

®

SW8 World Band Shortwave Receiver

with Selectable Sideband Synchronous Detector

Owner's Manual

SW8 World Band

Shortwave Receiver

+60

 

 

 

 

 

 

 

 

 

 

 

AGC S AM SYNC LSB

+40

 

 

 

 

 

 

 

 

TIMER

 

 

 

 

+20

 

 

 

 

 

 

 

 

M E M

 

SW

METER

9

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

KHz

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

6.0

 

 

 

 

 

 

 

 

TONE

 

 

BAND

 

TUNING

 

 

 

 

 

 

 

1

 

2

3

F

 

 

 

BCB

AIR

SW

 

 

 

 

L

H

4

AM

5

6

SCAN

 

 

 

SYNC

SSB

BW

MEM

 

VOLUME

7

8

9

STORE

 

 

 

 

 

ATT

AGC

LAMP

VFO

POWER

 

0

DEL

SKIP

CLEAR

TIMER

push

 

 

BEEP

CLOCK

 

 

 

 

 

 

® is a registered trademark of the R. L. Drake Company

© Copyright 1997 R. L. Drake Co.

P/N: 3851295F-4-1997

Printed in the U. S. A.

Declaration of Conformity

We, Manufacturer/Importer

(Full address)

R. L. Drake Company

230 Industrial Drive

Franklin, Ohio 45005 United States of America

declare that the product

(description of the apparatus, system, installation to which it refers)

SW8 World Band Shortwave Receiver 1295

is in conformity with

(reference to the specifications under which conformity is declared) in accordance with 89/336/EEC-EMC Directive

EN 55011

Limits and methods of measurement

EN 60555-2

Disturbances in supply systems caused

 

of radio disturbance characteristics of

 

by household appliances and similar

 

industrial, scientific and medical (ISM)

 

electrical equipment "Harmonics"

 

high frequency equipment

 

 

EN 55013

EN 55014

EN 55015

EN 55020

EN 55022

Limits and methods of measurement of radio disturbance characteristics of broadcast receivers and associated equipment

Limits and methods of measurement of radio disturbance characteristics of household electrical appliances, portable tools and similar electrical apparatus

Limits and methods of measurement of radio disturbance characteristics of flourescent lamps and luminaries

immunity from radio interference of broadcast receivers and associated equipment

Limits and methods of measurement of radio disturbance characteristics of information technology equipment

EN 60555-3

EN 50081-1

EN 50082-1

EN 50081-2

EN 50082-2

EN 50065-1

Disturbances in supply systems caused by household appliances and similar electrical equipment "Voltage fluctuations"

Generic emission standard Part 1:

Residual, commercial and light industry

Generic immunity standard Part 1:

Residual, commercial and light industry

Generic emission standard

Part 2: Industrial environment

Generic immunity standard

Part 2: Industrial environment

Signalling on low-voltage electrical Installations in the frequency range of 3kHz to 148.5kHz

Part 1: General requirements, frequency bands and electromagnetic disturbances

DIN V VDE 0855 part 10

part 12

EN55104

Immunity requirements for household

Cabled distribution systems; Equipment

appliances tools and similar apparatus

for receiving and/or distribution from

 

sound and television signals

 

CE marking

(EC conformity marking)

The manufacturer/importer also declares the conformity of above mentioned product with the actual required safety standards in accordance with LVD 73/23 EEC.

EN 60065

Safety requirements for mains operated

 

electronic and related apparatus for

 

household and similar general use

Manufacturer/Importer

Signature: ___________________

®

(Stamp)

Date:

January 01, 1997__Name:

Ronald E. Wysong____

 

Date: April 26/1996

______________________

EMC Tested by

electronic GmbH

Signature:

 

 

Ref. No. 963732

Name: P. Kraßowski Dipl.-Ing.

Important Safeguards

i

 

 

WARNING: TO PREVENT FIRE OR

ELECTRICAL SHOCK DO NOT

EXPOSE THIS PRODUCT'S AC ADAPTOR TO

RAIN OR MOISTURE

¡CAUTION!

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC

SHOCK,

DO NOT REMOVE COVER OF AC ADAPTOR NO USER-SERVICABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED PERSONNEL

An appliance and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces may cause the appliance and cart combination to overturn.

The lightning flash with arrow head symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS PRODUCT'S AC ADAPTOR TO RAIN OR MOISTURE. DO NOT OPEN THE AC ADAPTOR CASE, REFER SERVICING TO QUALIFIED PERSONNEL ONLY.

CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT USE THE AC ADAPTOR WITH AN EXTENSION CORD RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES OF THE AC ADAPTOR CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.

ATTENTION: POUR PREVENIR LES CHOCS ELECTRIQUES, NE PAS UTILISER CETTE FICHE POLARISEE AVEC UN PROLONGATEUR, UNE PRISE DE COURANT OU UNE AUTRE SORTIE DE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT.

1.Read Instructions—All the safety and operating instructions should be read before the appliance is operated.

2.Retain Instructions—The safety and operating instructions should be retained for future reference.

3.Heed Warnings—All warnings on the appliance should be adhered to.

4.Follow Instructions—All operating and use instructions should be followed.

5.Cleaning—Unplug this appliance from the wall outlet before

cleaning. Do not use liquid cleaners or aerosol cleansers. Use a damp cloth for cleaning.

6.Do Not Use Attachments—not recommended by the manufacturer or they may cause hazards.

7.Water and Moisture—Do not use this product near water—for example, near a bathtub, wash bowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool—and the like.

8.Accessories—Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing serious injury to a child or adult, and serious damage to the appliance.

9.Ventilation—This product should never be placed near or over a radiator or heat register. This product should not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer’s instructions have been adhered to. Any slots or openings in the cabinet are provided for ventilation.

To ensure reliable operation of the product and to protect it from overheating, these openings must not be blocked or covered. The openings should never be blocked by placing the product on a bed, sofa, rug, or other similar surface. KEEP CURTAINS AND

OTHER FLAMMABLE MATERIALS OUT OF DIRECT CON-

TACT WITH THE AC ADAPTOR.

10.Power Sources—This product should be operated only from the type of power source indicated on the marking label of the supplied AC Adaptor. If you are not sure of the type of power supplied to your home, consult your appliance dealer or local power company.

11.Lightning—For added protection for this product during a lightning storm, or when it is left unattended and unused for long periods of time, unplug the AC adaptor from the wall outlet.

12.Power Lines—An outside antenna system should not be located in the vicinity of overhead power lines, other electric light or power circuits, where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits as contact with them may be fatal.

13.Overloading—Do not overload wall outlets and extension cords as this can result in a risk of fire or electric shock.

ii Important Safeguards, continued

14.Servicing—Do not attempt to service the AC adaptor yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.

15.Damage Requiring Service—Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions:

a.When the AC adaptor cord or plug is damaged.

b.If the AC adaptor has been exposed to rain or water.

c.If the product does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions. An improper adjustment may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation.

d. If the product has been dropped or the cabinet has been

damaged.

e. When the product exhibits a distinct change in performance— this indicates a need for service.

16.Replacement Parts—When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original parts. Unauthorized substitutes may result in fire, electric shock or other hazards.

17.Safety Check—Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition.

18. Outdoor Antenna Grounding—Before attempting to install this product, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up static charges.

a.Use No.10 AWG (5.3mm2) copper, No.8 AWG (8.4mm2) aluminum, No.17 AWG (1.0mm2) copper-clad steel or bronze wire or larger, as ground wire.

b.Secure antenna lead-in and ground wires to house with standoff insulators spaced from 4 feet (1.22m) to 6 feet (1.83m) apart.

c.Mount antenna discharge unit as close as possible to where lead-in enters house.

d.A driven rod may be used as the grounding electrode where other types of electrode systems do not exist. Refer to the National Electrical Code, ANSI/NFPA 70-1990 for information.

e.Use jumper wire not smaller than No.6 AWG 13.3mm2) copper or equivalent, when a separate antenna grounding electrode is used.

" INSTALL WIRING ACCORDING TO THE CANADIAN ELECTRICAL CODE"

"EFFECTUER LE CABLAGE CONFORMEMENT AU CODE CANADIEN DE L' ELECTRICITE"

EXAMPLE OF ANTENNA GROUNDING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANTENNA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEAD IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WIRE

 

GROUND CLAMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANTENNA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DISCHARGE UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ELECTRIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(NEC SECTION 810-20)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GROUNDING CONDUCTORS

SERVICE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(NEC SECTION 810-21)

EQUIPMENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GROUND CLAMPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POWER SERVICE GROUNDING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ELECTRODE SYSTEM

NEC - NATIONAL ELECTRIC CODE

 

 

 

 

 

 

 

 

 

(NEC ART 250, PART H)

 

 

 

 

 

 

 

 

 

 

 

Table of Contents

iii

 

 

Thank you for purchasing a Drake SW8 World Band Shortwave Receiver. This receiver has been designed and manufactured to high quality standards, and will provide reliable operation for many years.

Please carefully read the Owner's Manual in order to take advantage of the many interesting features that will provide enjoyable listening to radio broadcasts around the world.

ImportantSafeguards

i

TableofContents

iii

Introduction-GeneralDescription

1

Introduction-Specifications

2

Optional Accessories

2

Introduction - Battery Operation and

 

Installation

3

Installation

4

Unpacking

4

Location

4

Adjusting Carrying Handle

4

Fixed Installation

4

Portable Operation

4

Antenna Requirements

4

Installation Diagram

5

FrontPanelDescription

6

Telescoping WHIP Antenna

7

FrontPanelDisplay

8

RearPanelDescription

9

Aircraft Band Squelch

9

Master Power Switch

9

GettingStarted

10

General Operating Information

10

Microprocessor Reset

10

Beep Tones

10

Direct Frequency Entry

10

Shortwave METER Band

 

Designator Entry

11

Frequency Resolution

12

Front Panel Lock (Unlock)

12

AM Synchronous Operation

12

SSB Operation

12

FM Operation

12

AGC Operation

12

MemoryFunctions

13

Memory Location Programming

13

Recalling A Memory Location

13

Deleting A Memory Location

13

ScanFunctions

14

Memory Channel Skip

14

ClockandTimerFunctions

15

Time Display

15

Setting The 24 Hour Clocks

15

Timer Operation

15

Setting Timer On/Off Times

15

Example for Setting Timer

16

Enabling / Disabling Timer

16

Example for Setting Overlapping

 

Events

17

Example for Setting Events On Two

 

Different Memory Channels

17

SpecialUseFeaturesandFunctions

18

Lock All Entry to Keypad

18

10 kHz/9 kHz Broadcast Band Tuning

 

Step Size

18

Delete All Memory Channels

18

Automatic Bandwidth Setting with

 

Mode Selection Disable (Enable)

18

QuickReferenceGuide

19

MemoryChannelLog

21

SuggestedReferences

24

GlossaryofTerms

25

Troubleshooting

26

ServiceandWarranty

27

iv

Introduction - General Description

1

 

 

SW8 World Band

Shortwave Receiver

+60

 

AGC S AM SYNC

LSB

+40

TIMER

M E M

 

+20

METER

9

 

SW

7

 

 

KHz

5

 

 

3

 

 

 

1

6.0

 

 

 

TONE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BAND

 

 

 

 

 

 

 

 

TUNING

 

 

 

1

 

 

 

2

 

 

3

 

 

F

 

 

 

 

 

 

 

 

BCB

 

 

AIR

 

 

SW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

H

 

4

AM

 

 

5

 

 

6

 

 

SCAN

 

 

 

 

 

 

 

 

SYNC

 

 

SSB

 

 

BW

 

 

MEM

 

 

 

 

 

VOLUME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

8

 

 

9

 

 

STORE

 

 

 

 

 

 

 

 

ATT

 

 

AGC

 

 

LAMP

 

 

VFO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POWER

 

 

0

DEL

 

 

SKIP

 

 

CLEAR

 

 

TIMER

 

 

 

 

push

 

 

 

 

 

 

 

BEEP

 

 

CLOCK

 

 

 

 

The SW8 is a microprocessor controlled, synthesized, world band receiver with continuous coverage capability from 500 kHz through 30 MHz which includes the AM broadcast and shortwave bands. Reception also includes FM broadcast (87 - 108 MHz) and Aircraft (118-137 MHz). The SW8 offers excellent sensitivity, selectivity, dynamic range and features that permit easy tuning of desired stations. Conveniently located front panel controls allow for rapid operator programming and ease of use. The unit can be operated from either the supplied AC Adaptor or from six “D” cell batteries (not supplied) for portable operation. A low battery voltage indication is displayed when that condition exists.

Three electronically switched IF filters are provided.

The front panel liquid crystal display provides feedback of the current status of the receiver. The seven digit frequency display provides resolution to 100 Hz accuracy in the AM broadcast, Aircraft and Shortwave bands. Resolution to 20 kHz is displayed in the FM broadcast band mode. Backlighting of the display is selectable by a front panel button. To prolong battery life with internal battery operation, the backlighting automatically turns off after a short delay following a function change or retuning of the receiver.

Reception modes include Lower/Upper Sideband (LSB), (USB), and AM in the Shortwave, AM broadcast and Aircraft bands. For the Shortwave and AM broadcast bands, a selectable synchronous detector (SYNC) allows for enhanced reception by eliminating or reducing distortion due to fading signals. During FM broadcast use, stereo reception is available through the use of headphones.

Other built-in reception aids include selectable slow or fast AGC, RF attenuator for use in strong signal handling conditions and TONE control.

Two independent, real time clocks provide a local and alternative time selection. Also provided is a two event timer.

A programmable memory area allows for 70 independent receiver set up memories. These memories do not require battery backup and are thus unaffected by power interruptions. All parameters associated with a particular memory channel are stored including the frequency, mode, bandwidth, fast or slow AGC, RF attenuator and synchronous detector. These memory channels may be accessed manually or through a time scan with each channel monitored for a 5 second period.

2Introduction - Specifications

Frequency Range

100 - 30,000 kHz (0.1 - 30 MHz)

Internal Antenna

41 inch length telescoping whip

 

87 - 108 MHz, 118 - 137 MHz

 

 

(for use on all bands).

 

 

 

AM, USB, LSB modes (0.1 - 30 MHz)

 

 

 

 

 

 

 

 

AM mode only for 118 - 137 MHz

Antenna Inputs:

 

 

 

 

 

 

FM mode only for 87 - 108 MHz

0.1 - 30 MHz

SO-239, 50 ohm connector or 3-

 

Less than 0.5 μV, 0.1 - 30 MHz

 

 

terminal compression connector for

Sensitivity: SSB

 

 

either 50 OHM or 500 OHM input

(10 dB S+N/N)

 

 

 

with ground.

 

 

 

Less than 2.0 μV, 0.1 - 30 MHz

87 - 108 MHz,

2-terminal compression connector,

Sensitivity: AM

118 - 137 MHz

300 ohm balanced input

(10 dB S+N/N)

Less than 4.0μV, 118-137 MHz

 

 

 

 

 

 

 

(1000 Hz, 30% Mod)

 

External Speaker

 

 

 

 

 

 

Less than 4 μV, 87 - 108 MHz

Output

2.0 Watts into 4 ohm speaker @ less

Sensitivity: FM

 

 

than 5 % THD with a 9 VDC supply

(20 dB S/N)

(monaural)

 

 

voltage. Output is a bridged amplifier,

 

 

 

 

(DO NOT GROUND).

Frequency Stability

+/-10 ppm, 00 to 500 C

 

 

 

 

 

 

 

 

 

Line Audio Output

300 mVolts, 4.7K ohms

Frequency Accuracy

Better than +/-100 Hz, @ 250 C

 

 

 

 

 

 

 

 

 

Headphone Jack

1/8 inch stereo/mono type

SelectivitySSB, AM:

6 kHz @ -6 dB, less than 12 kHz

DC Power

 

 

 

 

 

 

@ -60 dB

Requirements

Input: 7-10 VDC @ 1 Amp, supplied

 

4 kHz @ -6 dB, less than 9 kHz

 

 

from AC Adaptor Wall Transformer,

 

@ -60 dB

 

 

external DC Power Supply or

 

2.3 kHz @ -6 dB, less than 5 kHz

 

 

5.7 to 9.0 VDC supplied by (6)

 

@ -60 dB

 

 

internally mounted “D” cell (1.5V)

 

 

 

 

batteries (not supplied).

IF FrequencySSB, AM:

 

Current requirements (approximate) from 9.0 VDC

1st IF

55.845 MHz

Supply or Batteries with 1/4 W average Audio Output:

2nd IF

455 kHz

 

 

 

 

 

 

 

 

FM:

 

MODE

 

BACKLIGHT

 

1st IF

10.7 MHz (Single Conversion)

 

 

OFF

 

 

ON

 

 

 

 

 

Image Rejection

Greater than 60 dB, 0.1 to 30 MHz

AM

 

570 mA

 

 

700 mA

 

 

 

 

 

 

 

 

AM SYNC

 

600 mA

 

 

730 mA

 

 

Greater than 60 dB, 118 to 137 MHz

 

 

 

 

 

Greater than 50 dB, 87 to 108 MHz

SSB

 

600 mA

 

 

730 mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IF Rejection

Greater than 80 dB, 55.845 MHz

FM

 

440 mA

 

 

570 mA

 

 

Greater than 80 dB, 455 kHz

 

 

 

 

 

 

 

 

Operating

 

 

 

 

 

 

 

 

 

 

 

 

Dynamic Range

Greater than 95 dB, 0.1 to 30 MHz

Temperature

00 to +500 C

 

 

 

@ 20 kHz spacing (SSB, 2.3 kHz BW)

 

 

 

 

 

 

 

 

 

Weight

10 lbs. (includes AC Adaptor)

IP3 - Intercept Point

Greater than +10 dBm @ 20 kHz

 

 

(batteries NOT included)

 

spacing

 

 

 

 

 

 

 

(@ 50 ohm Ant. input)

Greater than -20 dBm @ 5 kHz

Size

Width: 11-1/2 “ (29.2 cm)

(Attenuator Off)

spacing

 

 

(including retractable bail)

 

Threshold: 1.0 μV

 

 

Height: 5-1/4" (13.3 cm)

AGC Performance

 

 

(including retractable bail and feet)

 

Attack Time: 1 mSec.

 

 

Depth: 13" (33 cm), (including

 

Release Time - SLOW: 3 sec.

 

 

front knobs and rear panel connectors)

 

- FAST: 300 mSec.

 

 

 

 

 

 

 

 

Less than 4 dB change in audio output

Supplied AC Adaptor

 

 

 

 

 

 

for 100 dB RF input change referenced

Wall Transformer

Input: 120 VAC ±10%, 15 Watts

 

from the AGC threshold point.

 

 

Output: 9 VDC @ 1 Amp maximum

OPTIONALACCESSORY:

MS8 - A complementary styled external speaker.

Introduction - Battery Operation and Installation

3

 

 

The SW8 receiver is supplied with an AC adaptor to power the SW8 indoors. The AC ADAPTOR is designed to be plugged into a wall outlet that supplies nominal120VAC, 60 Hz power. Keep curtains and otherflammablematerialsoutofdirectcontactwith theACADAPTORtoavoidoverheating.

The SW8 receiver is designed to operate from either the supplied AC ADAPTOR or from six "D" cell batteries (not supplied). NOTE: Check the batteries periodically for leakage. IF UNIT IS TO BE STORED OR OTHERWISE NOT USED FOR AN EXTENDED PERIOD OF TIME, REMOVE THE BATTERIES TO PREVENT CORROSION AND POSSIBLE DAMAGE TO THE RECEIVER.

BatteryInstallation

 

1)

Position receiver with bottom cover up and front

 

panel towards you.

NOTE:

2)

Remove battery access cover by loosening the

thumb screw and sliding cover toward you.

The SW8 does not rely on the batteries for retention

3)

Place 6 "D" cell alkaline type batteries into holder.

of memory channels. To insure that clocks and timers

Make sure the batteries are in the proper polarity

aremaintainedfollowingthelossofACpoweror

position as illustrated.

batteryremoval,theSW8mustfirstbeconnectedtoa

4)

Replace access cover and tighten the thumb screw

sourceofACpowerorhavebatteriesinstalledfora

to secure cover and batteries.

minimum of 10 minutes. If power is lost after this

 

 

minimum 'charge' time, clocks and timer settings are

 

 

maintained for a time period of approximately 30

 

 

minutes.

REAR PANEL OF SW8

BATTERYSUPPLY:9VDC

6 X IEC-LR20 OR IEC-R20 OR 'D' CELLS

DO NOT LEAVE BATTERIES IN UNIT

FOR EXTENDED PERIODS.

CHECKBATTERIESOFTEN

Battery Cover

Battery Compartment Cover Thumb

Screw

TOWARD FRONT OF SW8

FIGURE 1 - BATTERY COVER REMOVAL AND INSTALLATION

4Installation

UNPACKING

Carefully remove the SW8 and included AC Adaptor wall transformer from the shipping carton and examine them for evidence of damage. If any damage is noted, immediately contact the transportation company responsible for delivery or return the unit to the dealer from whom it was purchased. Keep the shipping carton and all packing material for the transportation company to inspect. The original carton and packing material should be retained for repackaging should it be necessary to return the receiver. Inspect the packing material for any accessories or printed material before storing the box. Locate the registration card, fill it out, and immediately return it to the R.L. Drake Company to insure registration and validation of warranty.

LOCATION

The location of the SW8 is not critical. For added operating convenience, the carrying handle may be adjusted to elevate the front of the unit or positioned behind the front feet. To adjust the handle, disengage the detents at both sides of the handle at its pivot points and adjust to desired position until detents are engaged. To detach (or reinstall) handle from the receiver, adjust handle to the vertical up position and bow handle outward at both sides. See Figure 2.

For fixed locations, the SW8 should be operated from the AC Adaptor. Keep curtains and other flammable material away from direct contact with the AC Adaptor to avoid overheating the transformer which could result in failure or fire.

Vertical Up Position

Side View of SW8

FIGURE 2 - ADJUSTING CARRYING HANDLE

FIXED INSTALLATION

After unpacking the unit, connect the antenna system to the appropriate antenna input. Connect system ground to the compression terminal marked ‘GND’. Plug the output cable of the AC Adaptor into the ‘External DC Input’ connector on the rear panel of the SW8 receiver. Plug the AC Adaptor into a source of 120 VAC, 60 Hz power. Refer to Figure 3 for the diagram of a typical fixed installation.

PORTABLE OPERATION

For use in a portable environment, the SW8 is operated from six (6) internally mounted “D” cell batteries. These batteries are not supplied and must be installed prior to portable operation of the SW8. See Figure 1 in the `BATTERY INSTALLATION’ section of this manual. For longest battery life, alkaline batteries are recommended for this product.

NOTE:REMOVETHEBATTERIESIFTHESW8IS TOBESTOREDOROTHERWISENOTOPERATED FORANEXTENDEDPERIODOFTIMETOAVOID DAMAGETOTHESW8DUETOPOSSIBLEBATTERYLEAKAGEORCORROSIONEFFECTS. The SW8 does not rely on the batteries for retention of memory channels. To insure that the clocks and timersaremaintainedfollowingalossofACpoweror batteryremoval,theSW8mustfirstbeconnectedto anACpowersourceorhavebatteriesinstalledfora minimum of 10 minutes. If power is lost after this minimum 'charge' time, clocks and event timer settings are maintained for a period of approximately 30 minutes.

ANTENNA REQUIREMENTS (Refer to Figure 3, page 5)

The SW8 incorporates rear panel switches to select between the internal whip antenna and various types of external antennas. The built-in ‘WHIP’ antenna is available for use on all bands. For 500 kHz to 30 MHz operation, two antenna connectors are also provided. ‘ANTENNA 1’ is a 50 ohm, SO-239 coaxial input requiring a mating PL-259 connector. This input would typically be used as the primary AM broadcast and shortwave band antenna input. Antennas such as dipoles, trap dipoles, verticals and beams will provide the best results depending upon the desired receiving frequency. ‘ANTENNA 2’ is a compression terminal type connection, providing a choice of high-impedance (500 ohms typical) or low-impedance (50 ohms typical). Antennas such as long wires or end-fed Zepps will provide the best results. For reception in the 87108 and 118-137 MHz range, the ‘FM/AIR’ terminals are also provided. Outside TV antennas, folded dipoles or coaxial antennas will provide the best results with this input for reception of the FM broadcast and Aircraft bands. Depending upon the particular type of antenna feed, connect to one of the 'FM/AIR' terminals and the 'GND'terminal for an unbalanced 75 ohm input, or, connect to the two '300 ohm' terminals for a balanced 300 ohm input. The best antenna for any of the previously mentioned inputs will depend on the frequency range and time of day for the particular signal in question. Refer to publications such as the ARRL Handbook or ARRL Antenna Manual (available in most public libraries) for help on selection and/or construction of the antennas mentioned above.

Drake SW-8 User Guide

Installation, continued

5

 

 

LOW IMPEDANCE

ANTENNA

 

OR

 

50 OHM COAXIAL CABLE

 

OR

PL-259

TV/FM

CONNECTOR

 

SPLITTER

 

HIGH IMPEDANCE

 

 

 

BUILT-IN

 

 

 

ANTENNA

 

 

TELESCOPING

 

 

 

 

 

 

WHIP ANTENNA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANTENNA 1

50

 

FM / AIR

ANTENNA 2

EXT DC

 

INPUT

 

300 GND 500 50

9VDC/

ON

OFF

 

 

1Amp

 

 

 

75

 

 

 

 

LINE

EXTERNAL

AIR

SHORTWAVE

 

AUDIO

FM / AIR

SQUELCH

OUT

SPEAKER

ANTENNA

ANTENNA

 

 

 

 

SELECT

SELECT

 

 

 

1 2 WHIP

EXT WHIP

 

4 / 8

 

+ MASTER

POWER

- NOTE -

CHECK INTERNAL

BATTERIES PERIODICALLY

IF INSTALLED

CAUTION:

BALANCED OUTPUT. DO NOT GROUND.

MADE IN U.S.A.

BATTERY COMPARTMENT

AC

ADAPTOR

MS8 Speaker

PLUG INTO 120VAC,

TO

60Hz AC POWER

TAPE RECORDER

 

INPUT

EXTERNAL SPEAKER

DO NOT GROUND

NOTE:

Grounding of either speaker output wire will limit maximum available audio output and damage the SW8.

FIGURE 3 - INSTALLATION DIAGRAM

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