®
SW8 World Band Shortwave Receiver
with Selectable Sideband Synchronous Detector
Owner's Manual
SW8 World Band
Shortwave Receiver
+60 |
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AGC S AM SYNC LSB |
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TIMER |
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M E M |
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METER |
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6.0 |
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TUNING |
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AM |
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SCAN |
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SYNC |
SSB |
BW |
MEM |
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VOLUME |
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STORE |
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AGC |
LAMP |
VFO |
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DEL |
SKIP |
CLEAR |
TIMER |
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BEEP |
CLOCK |
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® 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 |
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of radio disturbance characteristics of |
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by household appliances and similar |
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industrial, scientific and medical (ISM) |
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electrical equipment "Harmonics" |
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high frequency equipment |
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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 |
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sound and television signals |
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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 |
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electronic and related apparatus for |
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household and similar general use |
Manufacturer/Importer
Signature: ___________________
®
(Stamp) |
Date: |
January 01, 1997__Name: |
Ronald E. Wysong____ |
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Date: April 26/1996 |
______________________ |
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EMC Tested by |
electronic GmbH |
Signature: |
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Ref. No. 963732
Name: P. Kraßowski Dipl.-Ing.
Important Safeguards |
i |
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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
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ANTENNA |
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LEAD IN |
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WIRE |
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GROUND CLAMP |
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ANTENNA |
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DISCHARGE UNIT |
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ELECTRIC |
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(NEC SECTION 810-20) |
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GROUNDING CONDUCTORS |
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SERVICE |
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(NEC SECTION 810-21) |
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EQUIPMENT |
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GROUND CLAMPS |
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POWER SERVICE GROUNDING |
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ELECTRODE SYSTEM |
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NEC - NATIONAL ELECTRIC CODE |
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(NEC ART 250, PART H) |
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Table of Contents |
iii |
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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 |
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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 |
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GettingStarted |
10 |
General Operating Information |
10 |
Microprocessor Reset |
10 |
Beep Tones |
10 |
Direct Frequency Entry |
10 |
Shortwave METER Band |
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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 |
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Deleting A Memory Location |
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ScanFunctions |
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Memory Channel Skip |
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ClockandTimerFunctions |
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Time Display |
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Setting The 24 Hour Clocks |
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Timer Operation |
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Setting Timer On/Off Times |
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Example for Setting Timer |
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Enabling / Disabling Timer |
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Example for Setting Overlapping |
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Events |
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Example for Setting Events On Two |
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Different Memory Channels |
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SpecialUseFeaturesandFunctions |
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Lock All Entry to Keypad |
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10 kHz/9 kHz Broadcast Band Tuning |
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Step Size |
18 |
Delete All Memory Channels |
18 |
Automatic Bandwidth Setting with |
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Mode Selection Disable (Enable) |
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QuickReferenceGuide |
19 |
MemoryChannelLog |
21 |
SuggestedReferences |
24 |
GlossaryofTerms |
25 |
Troubleshooting |
26 |
ServiceandWarranty |
27 |
iv
Introduction - General Description |
1 |
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SW8 World Band |
Shortwave Receiver |
+60 |
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AGC S AM SYNC |
LSB |
+40 |
TIMER |
M E M |
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METER |
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9 |
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SW |
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KHz |
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3 |
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6.0 |
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TONE |
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BAND |
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TUNING |
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F |
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BCB |
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AIR |
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SW |
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L |
H |
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4 |
AM |
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6 |
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SCAN |
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SYNC |
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SSB |
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BW |
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MEM |
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VOLUME |
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7 |
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STORE |
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ATT |
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AGC |
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LAMP |
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VFO |
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POWER |
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DEL |
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SKIP |
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CLEAR |
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TIMER |
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push |
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BEEP |
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CLOCK |
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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 |
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87 - 108 MHz, 118 - 137 MHz |
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(for use on all bands). |
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AM, USB, LSB modes (0.1 - 30 MHz) |
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AM mode only for 118 - 137 MHz |
Antenna Inputs: |
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FM mode only for 87 - 108 MHz |
0.1 - 30 MHz |
SO-239, 50 ohm connector or 3- |
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Less than 0.5 μV, 0.1 - 30 MHz |
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terminal compression connector for |
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Sensitivity: SSB |
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either 50 OHM or 500 OHM input |
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(10 dB S+N/N) |
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with ground. |
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Less than 2.0 μV, 0.1 - 30 MHz |
87 - 108 MHz, |
2-terminal compression connector, |
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Sensitivity: AM |
118 - 137 MHz |
300 ohm balanced input |
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(10 dB S+N/N) |
Less than 4.0μV, 118-137 MHz |
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(1000 Hz, 30% Mod) |
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External Speaker |
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Less than 4 μV, 87 - 108 MHz |
Output |
2.0 Watts into 4 ohm speaker @ less |
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Sensitivity: FM |
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than 5 % THD with a 9 VDC supply |
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(20 dB S/N) |
(monaural) |
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voltage. Output is a bridged amplifier, |
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(DO NOT GROUND). |
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Frequency Stability |
+/-10 ppm, 00 to 500 C |
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Line Audio Output |
300 mVolts, 4.7K ohms |
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Frequency Accuracy |
Better than +/-100 Hz, @ 250 C |
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Headphone Jack |
1/8 inch stereo/mono type |
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SelectivitySSB, AM: |
6 kHz @ -6 dB, less than 12 kHz |
DC Power |
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@ -60 dB |
Requirements |
Input: 7-10 VDC @ 1 Amp, supplied |
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4 kHz @ -6 dB, less than 9 kHz |
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from AC Adaptor Wall Transformer, |
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@ -60 dB |
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external DC Power Supply or |
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2.3 kHz @ -6 dB, less than 5 kHz |
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5.7 to 9.0 VDC supplied by (6) |
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@ -60 dB |
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internally mounted “D” cell (1.5V) |
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batteries (not supplied). |
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IF FrequencySSB, AM: |
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Current requirements (approximate) from 9.0 VDC |
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1st IF |
55.845 MHz |
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Supply or Batteries with 1/4 W average Audio Output: |
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2nd IF |
455 kHz |
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FM: |
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MODE |
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BACKLIGHT |
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1st IF |
10.7 MHz (Single Conversion) |
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OFF |
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ON |
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Image Rejection |
Greater than 60 dB, 0.1 to 30 MHz |
AM |
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570 mA |
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700 mA |
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AM SYNC |
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600 mA |
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730 mA |
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Greater than 60 dB, 118 to 137 MHz |
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Greater than 50 dB, 87 to 108 MHz |
SSB |
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600 mA |
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730 mA |
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IF Rejection |
Greater than 80 dB, 55.845 MHz |
FM |
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440 mA |
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570 mA |
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Greater than 80 dB, 455 kHz |
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Operating |
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Dynamic Range |
Greater than 95 dB, 0.1 to 30 MHz |
Temperature |
00 to +500 C |
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@ 20 kHz spacing (SSB, 2.3 kHz BW) |
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Weight |
10 lbs. (includes AC Adaptor) |
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IP3 - Intercept Point |
Greater than +10 dBm @ 20 kHz |
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(batteries NOT included) |
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spacing |
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(@ 50 ohm Ant. input) |
Greater than -20 dBm @ 5 kHz |
Size |
Width: 11-1/2 “ (29.2 cm) |
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(Attenuator Off) |
spacing |
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(including retractable bail) |
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Threshold: 1.0 μV |
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Height: 5-1/4" (13.3 cm) |
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AGC Performance |
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(including retractable bail and feet) |
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Attack Time: 1 mSec. |
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Depth: 13" (33 cm), (including |
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Release Time - SLOW: 3 sec. |
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front knobs and rear panel connectors) |
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- FAST: 300 mSec. |
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Less than 4 dB change in audio output |
Supplied AC Adaptor |
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for 100 dB RF input change referenced |
Wall Transformer |
Input: 120 VAC ±10%, 15 Watts |
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from the AGC threshold point. |
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Output: 9 VDC @ 1 Amp maximum |
OPTIONALACCESSORY:
MS8 - A complementary styled external speaker.
Introduction - Battery Operation and Installation |
3 |
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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 |
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1) |
Position receiver with bottom cover up and front |
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panel towards you. |
NOTE: |
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2) |
Remove battery access cover by loosening the |
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thumb screw and sliding cover toward you. |
The SW8 does not rely on the batteries for retention |
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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 |
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position as illustrated. |
batteryremoval,theSW8mustfirstbeconnectedtoa |
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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 |
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minimum 'charge' time, clocks and timer settings are |
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maintained for a time period of approximately 30 |
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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.
Installation, continued |
5 |
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LOW IMPEDANCE |
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ANTENNA |
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OR |
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50 OHM COAXIAL CABLE |
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OR |
PL-259 |
TV/FM |
CONNECTOR |
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SPLITTER |
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HIGH IMPEDANCE |
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BUILT-IN |
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ANTENNA |
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TELESCOPING |
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WHIP ANTENNA |
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ANTENNA 1
50 |
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FM / AIR |
ANTENNA 2 |
EXT DC |
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INPUT |
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300 GND 500
50
9VDC/ |
ON |
OFF |
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1Amp |
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75 |
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LINE |
EXTERNAL |
AIR |
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SHORTWAVE |
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AUDIO |
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FM / AIR |
SQUELCH |
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OUT |
SPEAKER |
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ANTENNA |
ANTENNA |
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SELECT |
SELECT |
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1 2 WHIP |
EXT WHIP |
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4 / 8 |
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+ 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 |
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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