Owner`s Manual - Textfiles.com
Contents
1. LOW IMPEDANCE HIGH IMPEDANCE BUILT IN ANTENNA ANTENNA TELESC OPING WHIP ANTENNA OR 50 OHM COAXIAL CABLE OR PL 259 CONNECTOR TV FM SPLITTER 50 n UDN EXTERNAL pura Rea xm SELECT SELECT Q L 300 GND 50a 502 me SN SOFE ls ce 1 2 WHIP EXT WHIP 4a ae 4A EIS B ES Mum DO NOT GROUNL NOTE CHECK INTERNAL BATTERIES PERIODICALLY IF INSTALLED MADE I U S A BATTERY COMPARTMENT TEAS AC mm ADAPTOR CET PLUG INTO 120VAC TO EXTERNAL SPEAKER 60Hz AC POWER TAPE REC ORDER DO NOTGROUND INPUT FIGURE 3 INSTALLATION DIAGRAM NOTE Grounding of either speaker output wire will limit maximum available audio output and damage the 5 8 6 Front Panel Description Pivot Point of 8 Telescoping Whip Antenna DRAKE SW8 World Band Shortwave Receiver D 60 AGC 8 AMSYNC LSB 40 lt gg TIMER tl Hf Of meter HE FE ETE kee C tT 1 60 LU 1 p TONE BAND TUNING 7 z J BCB AIR sw F 2 A H AM 5 6 SCAN SYNC SSB BW MEM e VOLUME 7 3 STORE ATT AGC LAMP VFO 0 pud DEL skip Display The backl2. OFF Time 18 01 Action Press and then hold 7 AGC FM mod L ee IAAI t Press the button sequence e e as AGC AE Ld ot OIF ir oni l Press cock Press the button sequence lse Pacc 60 FM 205 mad LE 7 err 5 z ee ULUL C Press zz 160 AGC FM If it is desired to set Timer 2 use the same procedure as 4 that for Timer otherwise Press Tuer TER to exit setting Timer operation and CLOCK CLOCK return to normal frequency display ENABLING DISABLING TIMER OPERATION Press the button followed by the button The TIMER symbol will light in addition to either or both the timer I or timer 2 indication After two seconds with no entry the display reverts back to frequency readout Timer I can be disabled enabled by pressing the numeric digit on the keypad while the timer enable display is showing Timer 2 can be disabled enabled by pressing the numeric digit on the keypad while the timer enable display is showing Prior to enabling either or both timers consider one of two possible cases for each timer eg To Enable TIMER
3. Attenuator On or Off page 7 Set Time 15 Display Time page 15 Set Timer On Off times page 15 17 Activate Enabling Timer page 16 Lock Unlock Controls page 12 3 pressed within three seconds The symbol indicates that the button is to be pressed within three seconds STORE Press vo 1 2 3 Press Or amg Or ow 3 Press toggles between AM and FM or or sw With unit in SW press sv E two or three digit nes from numeric keypad for Shortwave Meter band designation D Select Band Turn tuning wheel Press keys or Press 3 numeric keypad Press for displayed AM Press to toggle to SYNC LSB Press toggle between USB and LSB Turn synchronous detector off before selecting LSB or USB modes Press to toggle between the FM and AM broadcast bands BCB With unit in AM mode press for displayed AM SYNC USB With unit in AM SYNC LISB mode press to turn syn chronous detector off Press 5 for displayed 6 0 4 0 or 2 3 not active in FM mode Pres
4. The second depression of the decimal sx button acts as an ENTER and causes immediate response to the entered frequency If you do not press the decimal sxe button a second time at the end the SW8 will automatically enter the frequency after a slight delay Attempting to enter a frequency outside the tuning range of the SW8 will cause the ERROR annunciator to flash along with the error beep to be heard The SW8 will then return to its previous settings Getting Started continued 11 SHORTWAVE METER BAND DESIGNATOR ENTRY To facilitate tuning to particular sections of the short wave band that contain many worldwide broadcasts of news information and music the SW8 permits entry of the METER band designator In some cases the worldwide broadcast station may not announce its exact operating frequency but will announce the METER band in which it is operating or to which band it will move to improve worldwide reception at a particular time of day By entering this METER band number the SW8 automatically tunes to the low frequency end of the corresponding METER band The search for the new station location is thus limited to a particular smaller section of the entire shortwave band spectrum The Shortwave Band Designators and corresponding frequency range is as follows Shortwave Band Designators 120 METER 2300 2500 kHz 90 METER 3200 3400 kHz 75 METER 3900 4000 kHz
5. 1 is displayed Press the button to display l 2 l is displayed Press the button twice to again display l It is important to note that the timer is enabled only when the timer is deliberately changed from a to l or to 2 Even if the I or 2 is already displayed the timer is not enabled unless the to I or 2 transition occurs Setting a for either timer DISABLES the respective timer Timers and 2 Enabled AGC FM E DERE J AGC FM ra a If either one or both the timer I or timer 2 are enabled the TIMER symbol will continue to be displayed after the receiver is turned off Be certain to leave the volume setting at the desired level The receiver will automatically turn on and off as pro grammed If both timers are disabled is dis played the timer programming in either or both timers is retained but no TIMER action will take place until one or both are enabled Clock and Timer Functions continued I7 2 Example for Setting Overlapping Events With frequency displayed suppose it is desired to record a one hour program on one frequency with a beginning time of 16 59 and an ending time of 18 00 and a second program on the same frequency with a beginning time of
6. until the button is pressed again Example for SCAN Suppose that memory channels 30 through 39 are programmed and it is desired to scan these channels To initiate the scan action Press the button followed by the two digit channel number entry can enter 30 through 39 for this example Press the button followed by The receiver will begin scanning from the selected memory channel and continue scanning in sequence 30 31 32 etc Press the button to stop the scanning action Note that if channels 29 and 40 were stored they would not be included in a scan of the channels starting with a 3 as the most significant digit of the channel number MEMORY CHANNEL SKIP A memory channel can be skipped for scan operations While in the MEMORY mode press the button The display will indicate that the SKIP function has been stored for that particular memory channel number An S will be displayed to the right of the memory channel number on the display Repeat the same sequence as described to remove the SKIP function from a memory channel number Example for MEMORY CHANNEL SKIP Refer to the previous example on this page Suppose it is desired to skip the memory channel number 34 from the scan action From the normal variable frequency tuning and reception mode VFO or from t
7. SW8 World Band Shortwave Receiver with Selectable Sideband Synchronous Detector Owner s Manual SW8 World Band Shortwave Receiver REE SAMS VOSS HH meter TUNING 7 VOLUME DRAKE 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 C 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 L EN 60555 3 Disturbances in supply systems caused X EN 55013 Limits and methods of measurement by household appliances and similar of radio disturbance characteristics of electrical equipment Voltage fluctuations broadcast receivers and associated equipment EN 50081 1 Generic emission standard Part 1 Residual commercial and light industry C EN 55014 Limits and methods of
8. 18 00 and an ending time of 19 01 Action Press and then Hold zz AGC FM 50 TIMER nod 9 ON LO ja 5 L IUa i LI 1 5 9 Press the button sequence 4 Pul came 60 AGC FM 120 ag 9 t js 3 rer 1 ht ot 1 Press mer CLOCK Press ce 60 20 ooo 1 9 0 1 Press the button sequence Fas l Pul Coa b Teos 460 mm AGC FM 120 TIMER E htt a Press for normal frequency display CLOCK 3 Example for Setting Events on Two Different Memory Channels eg PROGRAMMING MEM 08 in Timer 1 MEM 29 in Timer 2 With frequency displayed Press 52 followed within two seconds by button 0 8 sequence Ppa AGC Press then followed within 2 seconds by CLOCK depression s of the button until the I is displayed with MEM 08 indicated AGC FM TIMER MEM i 12 pnt ni Lit SiO mwvane bo I After 3 seconds the display reverts to the frequency readout With frequency displayed Pres
9. F e MEM will light and channel number VFO flashes _3 use keypad to enter two digit memory channel number from 00 to 69 Recall Memory Channel page 13 SCAN 3 desired two digit number from numeric A70 keypad or use __ buttons Skip Memory Channel page 14 SCAN 3 desired two digit number from numeric keypad Press 5 Delete a Memory Channel page 13 SCAN 3 desired two digit number from numeric keypad Press and hold for 3 seconds DEL Delete all Memory Channels page 18 With power off press while pressing the VOLUME pushy button Hold until confirmation beep indi cates all channel memory has been deleted SCANMODE The SCAN feature only works with channels pro grammed within a block page 14 Scan Memory page 14 3 desired two digit number from numeric keypad to select the block to scan 3 ww to start scan REARPANEL CONTROLS MASTER POWER On Off page 9 Set switch to ON position for normal control from front panel Set switch to OFF position to guard against accidental push of VOLUME push control on fro
10. Programming the timers is a two step process Step one is to set the ON and OFF times Step two is to TIMER quency Pressing and releasing the 29 button while time is being displayed will toggle the time display between the two clocks Normally the clock accompa nied by the L on the display will be set with the local time while the alternate clock will be set to display GMT UTC time The SW8 will display the selected clock when the POWER switch is turned off SETTING THE 24 HOUR CLOCKS Select local L or alternate time clock by pressing the coc button assign a frequency or memory channel to a timer This Press and hold the acc button for three seconds until assignment occurs when the desired timer is actually the colon begins flashing rapidly If the L is illumi enabled nated you are setting the local clock With no L displayed you are setting the alternate clock The SETTING TIMER ON OFF TIMES TIMER Press the button and then hold the button for approximately 2 seconds until the TIMER annun ciator turns on and ON flashes The On Time will also be indicated in the frequency portion of the display same readout format as the clock as well as the number I or 2 displayed to the right of the time entries The number I or 2 indicates which one of the two event timers you are programming keyboard is automatically set
11. intervals to convey information Morse code is the most common CW signal 6 DC Input Direct Current power source such as is available from batteries or regulated power supplies 7 Dynamic Range Ability of the receiver to faithfully reproduce high quality audio over a wide range of signal strength conditions from very weak signals to very strong signals 8 Frequency Rate of reoccurrence in hertz or cycles second of electromagnetic wave or carrier 9 FM Signals in which the information is conveyed by frequency changes of the signal Frequency Modula tion is used for the FM broadcast bands 10 Electronically Switched Filter A multi bandwidth filter with high adjacent channel attenuation switched electronically 11 GMT Greenwich Mean Time Glossary of Terms 25 12 HF High Frequency band extends from approxi mately 1 5 MHz to 30 MHz 13 LCD Liquid Crystal Display Low power consumption displays used for wristwatches and information displays on many types of electronic equipment 14 LSB Lower Side Band The lower frequency portion excluding the carrier of an AM signal A single sideband signal in this case the lower sideband contains all of the modulation information of amplitude modulation in one half the bandwidth 15 RF Radio frequency 16 RTTY Radio Teletype communications 17 Squelch A user controlled adjustment which mutes the audio output below a certain signal strength
12. 20 kHz 100 kHz AIR 100 Hz 100 Hz 25 kHz FRONT PANEL LOCK UNLOCK All keyboard entries display settings and entries from the tuning knob can be locked if desired First be sure the SW8 is not in SCAN Press and hold the button The LOCK annunciator will light indicating the front panel controls are locked out Power ON OFF will still function as well as volume and tone controls Press and hold the button to unlock AM SYNCHRONOUS OPERATION For general tuning and listening normal AM is best If however the received signal sounds distorted or interference from adjacent stations is present AM synchronous should be engaged The synchronous detector in your receiver can greatly reduce the severe audio distortion that can occur due to signal fading The detector also permits selectable tuning to either the upper or lower sideband portion of an AM signal Since most all AM LW MW and SW broadcasting generally uses double sideband transmission detection of either of the two sidebands results in full reception of the trans mitted information The selectable sideband tuning and detection not only aids reception by permitting tuning to the stronger or less distorted sideband but also permits rejection of the sideband nearer to the interfering signal s For Example Select LSB to CARRIER receive this LSB USB side only interference from adjacent station The synchronous detector w
13. Radio TV Handbook Published by Billboard Publications Inc 1515 Broadway New York NY 10036 3 The ARRL Antenna Book Published by The American Radio Relay League 225 Main Street Newington CT USA 06111 Copyright 1988 by The American Radio Relay League Library of Congress Catalog Card Number 55 8966 4 The ARRL Handbook Published by The American Radio Relay League 225 Main Street Newington CT USA 06111 Copyright 1989 by The American Radio Relay League Library of Congress Catalog Card Number 41 3345 1 AC Input Alternating Current power source available at wall outlet sockets 2 AM Signals in which the information is conveyed by amplitude changes of the signal Amplitude Modula tion is used for the AM broadcast bands 3 AGC Automatic Gain Control which is employed in receivers to adjust the amount of gain in the receiver s circuitry to prevent distortion and maintain a nearly constant audio volume level over wide variations in received signal strength 4 Attenuation Loss as applied in the text of this manual added prior to the input stages of the receiver to reduce the level of very strong signals that may occur on certain bands in certain locations at certain times or a combination of all three factors Each 10 dB decibel step reduces the power of the received signal by a factor of ten 5 CW Continuous Wave transmission signals Actually the signal is keyed on and off at precise
14. Shortwave and T Memory USE UFU Te A newly entered settings Aircraft bands The AGC is not selectable in the FM mode The secondary function of this button is the digit TIMER CLOCK Pressing this button once will 8 CLOCK display the current time of the current clock After three z seconds the display will revert to the current frequency uw LAMP Press to turn the display backlighting on or off With internal battery operation the backlighting automatically turns off after a short delay following a function change or retuning of the receiver to prolong battery life Also the receiver senses Battery or AC operation and allows the lamp to remain lit if on AC The secondary function of this button is the digit 9 Pressing and releasing this button while the time is displayed will toggle the time display between the two clocks local or alternate The timer will operate accord ing to the last displayed clock time See the SETTING THE 24 HOUR CLOCKS section of this manual Pressing button first followed by the TIMER button will activate the timer mode If the Timer has been activated DEL Press and hold for three seconds to delete me TIMER megl milloe displayed bul me receiver is turned off Receiver will automatically turn on a selected memory channel Audible beep indicates that the selected memory channel has been deleted The and off as
15. 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 indepen dent receiver set up memories These memor
16. 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 oper ated from six 6 internally moun
17. up for the shifted F function numeric digit entries in this clock setting mode Either clock can be set first Time is entered in a 24 hour format Enter the time in HH MM with the colon understood The 22 button can be pressed to erase erroneous BEEP 16 Clock and Timer Functions Press the desired numeric buttons to enter a new ON time Enter the time in HH MM and in 24 hour format LEAR Press the 12 button to remove the On Time to use the timer as a Sleep timer For a Wake timer program an On Time and remove the OFF time To set the OFF time Press the 72 button again to display OFF time Press the desired numeric buttons to enter a new OFF time Enter the time in HH MM and in 24 hour format CLEAR Press the 2 desired button to remove the OFF time if TIMER Press the button again to enter TIMER 2 ON time TIMER Press the button again to enter TIMER 2 OFF time TIMER Finally press the button to save the settings and switch the display to normal readout values 1 Example for Setting Timer 1 With frequency displayed suppose it is desired to set Timer I for a local ON Time 16 59
18. 18 Synchronous Detector An amplitude modulation detector which utilizes a replica of the original trans mitted carrier signal to improve the reception of weak signals 19 Synthesized Capable of generating a large number of different output frequencies all related to a single highly stable reference source 20 Up Conversion A frequency conversion tech nique that translates an incoming RF signal to a higher frequency 21 USB Upper Side Band The higher frequency portion excluding the carrier of an AM signal A single sideband signal in this case the upper sideband contains all of the modulation information of amplitude modulation in one half the bandwidth 22 UTC Universal Time Coordinated 23 VFO Variable Frequency Oscillator 24 VHF Very High Frequency band extends from approximately 30MHz to 300 MHz 26 Troubleshooting PROBLEM PROBABLE CAUSE SOLUTION Front panel clock display is showing but radio will not turn on No front panel display or lights No signals heard when antenna is connected or sensitivity is low S meter indication but no sound heard No front panel operation such as tuning frequency entry etc Timer does not operate A Rear panel MASTER POWER switch A Power connection B Defective AC adaptor unit C Batteries are discharged or not installed for portable operation no AC power A Incorrect antenna input selected B RF enabled A Improper mode
19. 440 mA 570 mA Operating Temperature 0 to 50 Weight 10 Ibs includes AC Adaptor batteries NOT included Size Width 1 1 2 29 2 cm Supplied AC Adaptor Wall Transformer including retractable bail Height 5 1 4 13 3 cm including retractable bail and feet Depth 13 33 cm including front knobs and rear panel connectors Input 120 VAC 10 15 Watts Output 9 VDC Amp maximum 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 nominal I20VAC 60 Hz power Keep curtains otherflammable materials out of direct contact with the AC ADAPTOR toavoid overheating The SW8 receiver is designed to operate from either the supplied AC ADAPTOR or from six 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 Battery Installation 1 Position receiver with bottom cover up and front panel towards you 2 Remove battery access cover by loosening the thumb screw and sliding cover toward you 3 Place 6 cell alkaline type batteries into holder Make sure the batteries are in the proper polarity position as illustrated 4 Replace access cover and tighten the thumb s
20. 60 METER 4750 5060 kHz 49 METER 5800 6200 kHz 41 METER 7100 7600 kHz 31 METER 9500 9900 kHz 25 METER 11600 12100 kHz 22 METER 13570 13870 kHz 19 METER 15100 15800 kHz 16 METER 17480 17900 kHz 13 METER 21450 21850 kHz 11 METER 25600 26100 kHz 3 Press the sw button to enter the shortwave band tuning mode At this point you can enter a frequency with the numeric buttons or use the Tuning wheel and or buttons to change frequency To enter a shortwave band METER designator press the METER number entry prompt Enter one of the sw button a second time to display a flashing listed two or three digit numbers corresponding to the desired METER band designator using the numeric buttons While the METER annunciator is flashing the Pes and buttons can also be used to step quickly from band to band After selection of the Meter band use the Tuning wheel or M buttons to change the frequency or press the button followed by the desired numeric frequency entry 12 Getting Started continued FREQUENCY RESOLUTION The SW8 tunes in the following steps Display Tuning Mode Resolution Resolution Broadcast Band AM 100 Hz 100 Hz 10 kHz 9 kHz Shortwave Band AM 100 Hz 100 Hz 5 kHz USB LSB 100 Hz 50 Hz 5 kHz FM 10 kHz
21. ONLY CAUTION TOPREVENT 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 COUR ANT 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 damp cloth for cleaning 6 Do Not Use Attachments not recommended by the manu facturer 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 applia
22. T 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 Memory Functions 13 Memory Location Programming 13 Table of Contents iii Recalling A Memory Location 13 Deleting A Memory Location 13 Introduction General Description Scan Functions 14 Introduction Specifications 2 Memory Channel Skip 14 Optional Accessories 2 Clock and Timer Functions 15 Introduction Battery Operation Time Display 15 Installation 3 Setting The 24 Hour Clocks 15 Timer Operation 15 Installation 4 Setting Timer On Off Times 15 Unpacking 4 Example for Setting Timer 16 Location 4 Enabling Disabling Timer 16 Adjusting Carrying Handle 4 Example for Setting Overlapping Fixed Installation 4 Events 17 Portable Operation 4 Example for Setting Events On Two Antenna Requirements 4 Different Memory Channels 17 Installation Diagram 5 Special Use Features and Functions 18 Front Panel Description 6 Lock All Entry to Keypad 18 Telescoping WHIP Antenna 7 10 kHz 9 kHz Broadcast Band Tuning Step Size 18 Front Panel Display 8 Delete All Memory Channels 18 Automatic Bandwidth Setting with Rea
23. airs 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 copper No 8 AWG 8 4mm alumi num No 17 AWG 1 0mm copper clad steel or bronze wire or larger as ground wire b Secure antenna lead in and ground wires to house with stand off 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 3mm 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 ELECTRIC SERVICE EQUIPMENT NEC NATIONAL ELECTRIC CODE ANTENNA LEAD IN WIRE ANTENNA DISCHARGE UNIT NEC SECTION 810 20 GROUNDING CONDUCTORS NEC SECTION 810 21 GROUND CLAMPS POWER SERVICE GROUNDING ELECTRODE SYSTEM NEC AR
24. by pressing and holding the button for 3 seconds Press the button and hold for 3 seconds Ac knowledge beep will indicate that the keypad and tuning control are locked Repeat the procedure to unlock the keypad and tuning control 10 kHz 9 kHz BROADCAST BAND TUNING STEP SIZE In the AM broadcast band the SW8 increments the frequency in 10 kHz steps when pressing the or buttons The 10 kHz step size is practical for tuning the U S and Canadian broadcast bands The step size can be changed to 9 kHz to permit practical tuning of Euro pean broadcast stations The tuning step size is held in nonvolatile memory and thus is not lost during power failure or battery changing To select the alternate step size With POWER OFF Press and hold the I button while pressing the POWER button to put the SW8 in the POWER ON mode If the step size was 10 kHz prior to performing the above procedure then the 9 kHz step size for the broadcast band is now programmed To change back to 10 kHz repeat the same procedure DELETE ALL MEMORY CHANNELS If it is desired to delete all programmed memory channels perform the following procedure With POWER OFF Press and hold the button while pressing the POWER button to put the SW8 in the POWER ON mode Hold the button until a confirmation beep is heard to indicate that ALL memory
25. crew to secure cover and batteries REAR PANEL OF SW8 Ug NOTE The SW8 does not rely on the batteries for retention of memory channels To insure that clocks and timers are maintainedfollowing the loss of AC power or battery removal the SW8 must first be connected to a source of AC power or have batteries installed fora 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 TOWARD FRONT OF SW8 BATTERY SUPPLY 9 VDC 6 X IEC LR20 ORIEC R20 OR D CELLS DO NOT LEAVE BATTERIES IN UNIT FOR EXTENDED PERIODS CHECKBATTERIES OFTEN Battery Cover Battery Compartment Cover Thumb Screw FIGURE 1 BATTERY COVER REMOVAL AND INSTALLATION 4 Installation 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
26. d Warranty and returned to you 1 Improper maintenance or repair including the installation of parts or accessories that do not conform to the quality and specification of the original parts 2 Misuse abuse neglect or improper installation 3 Accidental or intentional damage All implied warranties if any including warranties of merchantability and fitness for a particular purpose terminate one 1 year from the date of the original purchase The foregoing constitutes L DRAKE COMPANY S entire obligation with respect to this product and the original purchaser shall have no other remedy and no claim for incidental or consequential damages losses or expenses Some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusions or limitation of incidental or consequential damages so the above limitation and exclusion may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state This warranty shall be construed under the laws of Ohio es R L Drake Company 230 Industrial Drive Franklin Ohio 45005 U S A CUSTOMER SERVICE AND PARTS TELEPHONE 1 513 746 6990 TELEFAX 1 513 743 4576 WORLD WIDE WEB SITE http www rdrake com
27. e on batteries ATT Indicates that the built in attenuator is acti vated 7 AGC SF Indicates the AGC setting Slow or Fast 8 AM SYNC Indicates that the AM mode of recep tion is on If SYNC is also illuminated then the synchronous AM mode of detection is on 9 USB Indicates that the Upper sideband mode of detection is on LSB Indicates that the Lower sideband mode of detection is on 10 FM Indicates that the FM mode of detection is on This mode is selectable only on the FM broadcast band 87 108 MHz 11 SW Z Li METER Indicates the Shortwave band designators that define a range of frequencies for each band as follows Shortwave Band Designators 120 METER 2300 2500 kHz 90 METER 3200 3400 kHz 75 METER 3900 4000 kHz 60 METER 4750 5060 kHz 49 METER 5800 6200 kHz 41 METER 7100 7600 kHz 31 METER 9500 9900 kHz 25 METER 11600 12100 kHz 22 METER 13570 13870 kHz 19 METER 15100 15800 kHz 16 METER 17480 17900 kHz 13 METER 21450 21850 kHz METER 25600 26100 kHz 12 AIR Indicates that the Aircraft band 118 MHz has been selected 137 13 7 Digit Readout This display indicates the operating frequency of the receiver The frequency is displayed in KHz for the AM broadcast and Shortwave bands The FM and Aircraft band frequencies are displayed in MHz In the clock mode these digits indicate time in 24 hour format i e HH MM In the TIMER mode indicates ti
28. em 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 T 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 speci fied 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 rep
29. ereo reception is possible The front panel s annunciator will light when a stereo station is tuned in with the stereo head phones plugged in The SW8 will automatically switch to stereo and provide left and right audio from the head phone jack only If the headphones are removed while listening to a stereo broadcast the SW8 reverts to monaural audio from the internal or external speaker AGC OPERATION The SW8 provides the ability to select a Slow or Fast AGC setting Either of the two settings will permit automatic control of the receiver s gain thereby produc ing a constant audio output free of distortion Generally the Slow AGC setting is preferred for reception of AM and SSB signals The Fast AGC setting allows more rapid automatic receiver gain adjustment to quickly fading signal levels The AGC does not function in the FM mode Memory Functions 13 ADAKE SW8 World Band D DRAKE Shortwave Receiver tti RRO swoanodsd AGC S AM SYNC L SB TIMER MEM E o sw H O meter BAND TUNING T z AIR sw F MEMORY FUNCTIONS The SW8 contains 70 memory locations that can be used to store and recall commonly monitored frequen cies These 70 locations are divided into blocks of 10 ie 00 09 10 19 20 29 etc This allows convenient
30. fective unit To obtain such warranty service the original purchaser must 1 Complete and send in the Warranty Registration Card within ten 10 days of purchase 2 Notify the R L DRAKE COMPANY or the nearest authorized service facility as soon as possible after discovery of a possible defect of a the model and serial number b the identity of the seller and the approximate date of purchase c a detailed description of the problem including details on the electrical connection to associated equipment and the list of such equipment 3 Deliver the product to the L DRAKE COM PANY or the nearest authorized service facility or ship the same in its original container or equivalent fully insured and shipping charges prepaid Correct maintenance repair and use are important to obtain proper performance from this product There fore carefully read the Instruction Manual This warranty does not apply to any defect that R L DRAKE COMPANY determines is due to Warranty 27 Should you want to return your unit for service package the receiver carefully using the original carton or other suitable container Write your return address clearly on the shipping carton and on an enclosed cover letter describing the service required symptoms or problems Also include your daytime telephone number and a copy of your proof of purchase The receiver will be serviced under the terms of the R L Drake Company Limite
31. grouping of frequencies As an example 00 09 could be AM broadcast stations 10 19 could be FM broad cast stations 20 29 could be various time stations such as CHU and WWV etc With memory locations programmed you can use the scan function to auto matically monitor desired memory frequencies The following operating parameters may be stored in any memory location 1 Frequency 2 Mode 3 Bandwidth 4 AGC setting 5 Attenuator 6 Synchronous detector MEMORY LOCATION PROGRAMMING First be sure that the SW8 is in the VFO mode MEM or SCAN not displayed If required press the 5728 button to place unit in the VFO mode A Select the desired frequency mode bandwidth etc B Press the button and then the 7 button switches keypad to the numeric mode MEM will light and the memory channel number will flash Within three seconds enter a two digit number from 00 69 A confirmation beep is heard C The SW8 will return to the VFO mode and the last used memory location is displayed in the MEM portion of the display RECALLING A MEMORY LOCATION To select a specific memory channel press the button and then enter a two digit number of the desired memory channel to be recalled Make certain that the successive button depressions are made within 3 seconds of each other Other memory channels may be selected by pressing the 5 button and entering two digit numbers If a chan
32. he Memory mode press the 7 button followed by the two digit number 34 Press the button An S will illuminate to the right of the displayed 34 When the scan action is initiated all channel numbers 30 through 39 except 34 will be scanned Note that the memory contents of channel 34 still remain it is skipped over only in the scan sequence To allow channel 34 to again be included in the scan sequence Press the button followed by the two digit number 34 Press the button to remove the SKIP function from channel 34 for this example The S indicator in the display will turn off e SKIP Clock and Timer Functions 15 B BABAKE 5 6 World Band D DRAKE Shortwave Receiver D 60 AGCS AMSYNC USB 9 20mm TIMER C3 125 ao C eee TUNING an x ATT AGC LAMP VFO POWER D push DEL SKIP BP TIME DISP LAY Press the F button to start the clock when the The SW8 incorporates a dual time clock allowing two actual time value agrees with the entered time Colon 24 hour clocks to be set and maintained During loss will flash at one second intervals when clock is running of AC power or during battery changing cloc
33. ies 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 2 introduction Specifications Frequency Range Sensitivity SSB 10 dB S N N Sensitivity AM 10 dB S N N 1000 Hz 30 Mod Sensitivity FM 20 dB S N Frequency Stability Frequency Accuracy Selectivity SSB AM IF Frequency SSB AM Ist IF 2nd IF FM Ist IF Image Rejection IF Rejection Dynamic Range IP3 Intercept Point 50 ohm Ant input Attenuator Off AGC Performance 100 30 000 kHz 0 1 30 MHz 87 108 MHz 118 137 MHz AM USB LSB modes 0 1 30 MHz AM mode only for 118 137 MHz FM mode only for 87 108 MHz Less than 0 5 0 1 30 MHz Less than 2 0 0 1 30 MHz Less than 4 0uV 118 137 MHz Less than 4 uV 87 108 MHz monaural 10 ppm 0 to 50 C Better than 100 Hz 25 C 6 kHz 6 dB less than 12 kHz 60 dB 4 kHz 6 dB less than 9 kHz 60 dB 2 3 kHz 6 dB less than 5 kHz 60 dB 55 845 MHz 455 kHz 10 7 MHz Single Conversion Greater than 60 dB 0 1 to 30 MHz Greater than 60 dB 118 to 137 MHz Greater than 50 dB 87 to 108 MHz Greater
34. ill lock to the strongest signal that is within the IF passband when it is activated Most of the time the strongest signal will be the carrier of the desired signal First be sure the main tuning is set to within kHz of the desired station s transmitting frequency Press the button to activate synchro nous operation lf adjacent channel interference or any other undesired signal is sufficiently strong the synchro nous detector may lock to it instead In that case press the 4 button to turn the synchronous detector off and repeat the tuning process For severe cases of fading set the audio bandwidth to 4 kHz If interference is present press the SSB button to select the sideband with the least interference If the interference is suffi ciently severe to prevent reception select a narrower IF bandwidth and retune to the desired signal After reception is obtained select a wider bandwidth and or alternate sideband if desired When AM SYNC has been activated moving the main tuning knob will cause the SYNC circuit to momentarily disengage indicated by SYNC flashing then back on again when tuning has stopped AM SYNC does not function on the AIR band and will not operate properly on intermittent transmis sions such as those encountered on CB radio bands for example For those types of transmissions use the AM mode Press the button to turn the synchronous detector off befo
35. it liquid crystal display provides the current status of the SW8 such as frequency mode bandwidth etc Refer to the FRONT PANEL DISPLAY section of this manual for a full description 2 TUNING VFO The dial and the __ and buttons are the primary tuning controls of the SW8 Clockwise rotation of the dial increases frequency and counterclockwise rotation decreases frequency The dial also incorporates variable speed tuning The faster the dial is rotated the faster the tuning speed and N The the frequency by fixed steps 10 kHz or 9 kHz selectable on the AM broadcast band 5 kHz on the Shortwave band 100 kHz on the FM broadcast band and 25 kHz on the Aircraft band with each depression Pressing and holding either button will allow continuous stepping up or down as long as the button is depressed button decreases button increases and the in 3 Program Buttons Function Pressing this button accesses the secondary functions printed in orange on the program buttons Press the button first to display d a then press the desired function button With the SW8 not in the SCAN mode pressing and holding the button locks all keypad entries display settings and tuning knob entries c Press to select between the AM or FM broadcast band Repeated pressings toggle between AM and FM The sec
36. k operation is maintained for a period of approximately Example for Local Clock Set 30 minutes if the SW8 has been connected to an AC With frequency displayed suppose it is desired to set power source or had the batteries installed for a 13 01 minimum time of 10 minutes The two event timer functions are also derived from the last displayed clock therefore the clocks must be set first for proper Press and hold the 29 button until the colon flashes rapidly Press the following sequence of numeric buttons TIMER operation TIMER Settings are also maintained x 5 through a power loss for period of approximately 30 828 d E minutes 00 01 00 13 L 01 30 L 13 01 Cae When the actual time is 13 01 Press the button Pressing the button once will display the current time of the current clock After approximately 3 seconds the display will revert to the current fre The clock is now started TIMER OPERATION The SW8 includes two programmable event timers allowing the SW8 to turn ON or OFF at preset times The timers may be used separately or together and may recall a currently displayed frequency memory channel or a combination of both In addition pro gramming only an OFF time provides a Sleep timer programming only an ON time provides a Wake timer Notethatthe timers when activated respond to the lastdisplayed clock
37. locations have been cleared AUTOMATIC BANDWIDTH SETTING WITH MODE SELECTION DISABLE ENABLE The SW8 permits automatic setting of the bandwidth appropriate for each mode of detection For example the 6 0 kHz bandwidth would be selected automatically for AM mode operation the 2 3 kHz bandwidth would be selected for SSB mode Of course pressing the w button temporarily overrides the automatic BW setting until a mode change is made The setting automatic or manual bandwidth selection with mode is held in nonvolatile memory and is not lost during power loss or during battery changing To disable the automatic bandwidth with mode With POWER OFF Press and hold the f button while pressing the POWER button to put the SW8 in the POWER ON mode To enable the automatic bandwidth selection with mode operation repeat the same procedure Quick Reference Guide 19 Most front panel pushbuttons perform two functions The second function requires that the button be pressed first and then the desired second function button Select normal frequency display VFO pages 6 7 Select Band page 6 8 Adjust Frequency page 6 Select Mode page 6 Select SYNChro page 6 Select Bandwidth page 6 Select AGC page 7
38. lts 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 87 108 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 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
39. me in 24 hour format i e HH MM L Indicates that Local Time is being dis played in the clock mode If the L is not illuminated alternate time is displayed in the clock display mode 14 SCAN LH Hu 15 Indicates that the receiver is in the memory channel SCAN mode and displays the number of the currently scanned channel from 00 to 69 In the MEMORY mode the S illuminates to indicate that a particular memory channel will be skipped over when the SCAN operation is activated 15 6 0 4 0 2 3 Indicates which IF filter is selected There is no indication in the FM mode 16 ist Y Indicates that a stereo FM broadcast station is tuned in when stereo headphones are plugged into the receiver s headphone jack Rear Panel Description 9 2 3 4 L 300a 5000 500 ee ON ES POWER MADE IN U S A 1 EXT DC INPUT Connect the AC Adaptor wall transformer output cable to this connector The SW8 requires 9 VDC power at approximately 1 Amp current With external DC power applied the internal batteries are not used 2 ANTENNA 1 This connector is used when attaching receiving antennas with coaxial feed lines of 50 ohm nominal impedance Accepts a standard PL 259 plug If selected by the Shortwave Antenna Select switch Item 5 this input operates for the AM Broadcast and Shortwave 100 kHz to 30 MHz bands only 3 FM AIR Antenna This input is de
40. measurement of radio disturbance characteristics of X EN 50082 1 Generic immunity standard Part 1 household electrical appliances Residual commercial and light industry portable tools and similar electrical apparatus 50081 2 Generic emission standard Part 2 Industrial environment C EN 55015 Limits and methods of measurement of radio disturbance characteristics of EN 50082 2 Generic immunity standard flourescent lamps and luminaries Part 2 Industrial environment X EN 55020 immunity from radio interference of EN 50065 1 Signalling on low voltage electrical broadcast receivers and associated Installations in the frequency range of 3kHz equipment to 148 5kHz Part 1 General requirements frequency C EN 55022 Limits and methods of measurement bands and electromagnetic disturbances of radio disturbance characteristics of information technology equipment EN55104 Immunity requirements for household L DIN V VDE 0855 Cabled distribution systems Equipment appliances tools and similar apparatus part 10 for receiving and or distribution from part 12 sound and television signals X CE marking C 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 X EN 60065 Safety requirements for mains operated electronic and related apparatus for household and similar general use Manufacturer Im
41. n audible beep unless the beep has been disabled by the G r button No beep is generated under any condition for depressions of the TUNING keys Beep tones indicate the following One short tone for a key depression One long high tone when storing a memory channel One long low tone for any illegal key depression GETTING STARTED Please refer to the front panel illustrations and set the controls as shown 1 Install 6 D batteries or connect AC adaptor 2 Fully extend whip antenna adjust to a vertical position and engage in holder or connect an external antenna to appropriate rear panel terminals Set rear panel ANTENNA SELECT switch es to appropriate position s Numeric Keypad Tuning Keys Tuning Knob 3 Press POWER and adjust VOLUME to comfortable level NOTE Be sure the MASTER POWER switch on the rear panel is inthe ON position 4 Select the desired band by pressing one of the 1 2 3 BCB AIR buttons Sw 5 Enter the desired frequency by using one of several methods covered below DIRECT FREQUENCY ENTRY Direct entry of a desired frequency is possible using the orange numeric keys 0 9 and decimal key While entering a frequency if an incorrect frequency is entered pressing the 954 button will clear the entry in progress and return the SW to its previous settings button acts as an ENTER and ca
42. nce 9 Ventilation This product should never be placed near or over aradiator 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 adheredto 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 th
43. nel number is selected that is empty Error will flash The large rotary tuning control may be used to tune from the frequency that was stored in the selected memory channel The MEM symbol turns off but the last memory channel number still shows Pressing the sy button causes the receiver to return to the MEI last selected memory channel number and the MEM symbol turns on DELETING A MEMORY LOCATION Select the memory channel to be deleted as described in RECALLING A MEMORY LOCATION Press and hold the button for three seconds Beep will be heard to indicate that the contents stored in the selected memory channel number have been deleted 14 Scan Functions The SW8 provides time scan function of programmed memory channels using the button and scan button Scan will begin and end within a 10 channel block of programmed memory channels as indicated by the most significant digit of the selected memory channel number Block Memory Channel Number ScanRange 0 00 09 10 19 2 20 29 3 30 39 4 40 49 5 50 59 6 60 69 The receiver will stop at each programmed memory channel within the block for 5 seconds and then increment to the next memory channel Memory channels that are programmed to be skipped will not be scanned The SCAN symbol will be displayed for the duration of the scan action Scanning will continue
44. next memory channel Channels programmed for SKIP will not be scanned Press this button to stop the scan operation 8 Front Panel Display I 2 3 4 5 6 7 8 9 10 zz AGC SF AM SYNC USB 20 8E TIMER MEM 85 OFF It hls Al RSW Jt METER 5mm t4 Im mem KHz i 6 04 0 2 3 C LL LULA MHZ OY 16 15 14 13 1 Bar Graph This bar graph display indicates the relative received signal level in S units and dB above S9 Each S unit between S and S9 equals an approximately 5 dB change in received signal strength Each S unit above S9 equals an approximately 0 dB change in received signal strength 2 TIMER This annunciator indicates the state of the Timer as either Active or Inactive Refer to the CLOCK AND TIMER FUNCTIONS section of this manual 3 LOCK When illuminated this annunciator indicates that the Main tuning wheel and keypad are not active 4 Indicates that the button has been pressed on the keypad to enable the alternate functions printed in orange of the keypad buttons to be active 5 MEM This annunciator indicates current memory location from 00 to 69 MEM will light when the receiver enters the memory mode Refer to the MEMORY FUNCTIONS section of this manual 6 BATT When operating on internal batteries BATT blinks to indicate a low charg
45. nt panel turning on unit and discharging batteries if installed Shortwave Antenna Select page 9 Select I 2 or WHIP as desired Connect appropriate antenna s FM AIR Antenna Select page 9 Select either EXTernal or WHIP as desired Connect appropriate antenna Aircraft Band Squelch Control page 9 Adjust control counterclockwise until the background noise just quiets Air Squelch CHANNEL 00 STATION NAME FREQUENCY Memory Channel Log MODE SMETER AGC 21 SYNCHRO 01 02 03 05 06 07 08 09 10 12 13 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 3 32 33 34 22 CHANNEL 35 Memory Channel Log STATION NAME FREQUENCY MODE SMETER AGC SYNCHRO 36 37 38 39 40 4l 42 43 45 46 47 48 49 50 5 52 53 54 55 56 57 58 59 60 6l 62 63 64 65 66 67 68 69 24 Suggested References I Passport to World Band Radio Published by International Broadcasting Services Ltd P O Box 300 Penn s Park Pennsylvania 18943 2 World
46. ondary function of this button is the digit I AIR Press to select the Aircraft band The AIR secondary function of this button is the digit 2 w SW Press to select the Shortwave band The secondary function of this button is the digit 3 4 AM AM SYNC Press to select the AM mode of operation Successive depressions toggles the synchro nous detector on and off Press 4 AM 4 to turn the synchronous detector off before selecting SSB modes The AM AM SYNC modes are not accessed in the FM band The AM SYNC mode is not accessible in the Aircraft band The secondary function of this button is the digit 4 5 SSB SYNC must be turned off Successive depressions select alternately the LSB or USB modes as dis played The SSB mode of operation is not accessed in either the FM or Aircraft band modes The secondary function of this button is the digit 5 SSB Press to select the SSB mode of operation 6 BW to be automatic with mode selection or manual The default setting is for automatic selection Press to select the desired bandwidth 6 0 kHz 4 0 kHz or 2 3 kHz This function has no action in the FM mode The 6 0 kHz bandwidth is automatically selected in the AM mode The 2 3 kHz bandwidth is the default for the SSB modes All three bandwidths are selectable by successive depressi
47. ons of this button for the AM broadcast Shortwave and Aircraft bands To disable the automatic bandwidth selection with mode start in the POWER OFF mode and press and hold the button while pressing the POWER button to put the SW8 in the POWER ON mode To enable the automatic bandwidth selection with mode operation repeat the same procedure The secondary function for this button is the digit 6 BW The bandwidth setting can be programmed Front Panel Description continued 7 ATT Press to turn on the built in 20 dB attenua STORE VFO Press to place receiver in the normal tor to reduce the received signal strength in the AM variable frequency tuning mode VFO Select desired broadcast and Shortwave bands as required The frequency mode attenuator Synchronous detector AGC attenuator is not active in the FM and Aircraft bands bandwidth etc Pressing button first followed Successive depressions of the button toggles the attenuator on and off The secondary function of this button is the digit 7 by depression of the 57 button switches the keypad to the numeric mode The MEM symbol will flash in the display Enter a two digit number between 00 and 69 for the desired memory channel An audible beep will acc AGC Press to select either the Slow or Fast indicate that th h has b tored with th AGC setting for the AM broadcast
48. or the 100 kHz to 30 MHz antenna input The WHIP antenna is built in to the receiver and is located at the upper left hand corner of the receiver s front panel ANTENNA 1 and ANTENNA 2 are described in Items 2 and 4 on this page 6 FM AIR ANTENNA SELECT This switch allows selection of either the built in WHIP antenna or the external 75 ohm antenna or 300 ohm antenna connect ed at the FM AIR terminals Item 3 for the 87 108 MHz and 118 137 MHz frequency ranges 7 LINE AUDIO OUT This RCA connector provides a constant low level audio source that is independent of the front panel volume and tone control settings It is designed to interface to a tape recorder CW RTTY demodulators amplifiers etc 8 EXTERNAL SPEAKER This connector accepts a standard 1 4 diameter 2 circuit monaural phone plug for connection of an external 4 8 ohm speaker DONOTGROUND NOTE Grounding ofeither speaker output wire will limit maximum available audio output and damage the SW8 9 AIR SQUELCH This control is operational only for the Aircraft band The control allows muting of the receiver s audio when no signals are present Adjust the control until background noise just disappears when no signal is being received 10 MASTER POWER This is a master power switch which protects against accidental activation of front panel power control If the receiver is operated on batteries and is not to be used for an extended period of time
49. porter DRAKE d Signature V by tang Stamp Date January 01 1997 Name Ronald E Wysong Date April 26 1996 i au EMC Tested by ph electronic GmbH Ref No 963732 Name Dipl Ing Important Safeguards WARNING TO PREVENT FIRE OR ELECTRICAL SHOCK DO NOT EXPOSE THIS PRODUCT S AC ADAPTOR TO RAIN OR MOISTURE An appliance and cart combination should be moved with care Quick stops excessive force and uneven surfaces may cause the appliance and cart combina tion 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 ijCAUTION 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 The exclamation point within an equilateral triangle is intended to alert the user to the presence of impor tant operating and maintenance servicing instruc tions 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
50. programmed See the SETTING TIMER ON OFF TIMES section of this manual secondary function of this button is the digit 0 4 VOLUME POWER Push in on this control to turn the receiver On or Off With receiver power on adjust this control clockwise to increase the audio level from the receiver s speaker Be certain to leave the volume setting at the desired level for TIMER use The POWER switch may be disabled by the rear panel MASTER POWER switch See the Rear Panel Description section of this manual st SKIP In the memory mode press to skip the current memory channel for a Scan operation An S will be displayed to the right of the selected memory channel number When an S is displayed next to a selected memory channel number press this button to restore the memory channel for scan operation The secondary function of this button is the decimal point which is used when entering a frequency 5 TONE This control is used to modify the tonal quality CLEAR 7 i P sce CLEAR BEEP The beep tone is provided to of the audio Counterclockwise rotation increases the bass indicate that entries have been accepted or to notify of response Flat response occurs at the 12 O Clock setting error Press this button to enable or disable the beep Clockwise rotation increases the treble response Pressing the button first clears an incor
51. r Panel Description 9 Mode Selection Disable Enable 18 Aircraft Band Squelch 9 Master Power Switch 9 Quick Reference Guide 19 Getting Started 10 Memory Channel Log 21 General Operating Information 10 Microprocessor Reset 10 Suggested References 24 Beep Tones 10 Direct Frequency Entry 10 Glossary of Terms 25 Shortwave METER Band Designator Entry lI Troubleshooting 26 Frequency Resolution 12 Front Panel Lock Unlock 12 Service and Warranty 27 AM Synchronous Operation 12 SSB Operation 12 FM Operation 12 AGC Operation 12 Introduction General Description SW8 World Band Shortwave Receiver ttr RRO mwne AGCS AMSYNC LSB MEM FH sw 4 C Z am a am ane TIMER TONE VOLUME TUNING Q The SW8 is a microprocessor controlled synthesized world band receiver with continuous coverage capabil ity 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
52. re selecting LSB or USB modes SSB OPERATION Tuning in a single sideband SSB signal can be somewhat frustrating for the first time listener In either of the SW8 s SSB modes LSB lower sideband or USB upper sideband the receiver will select the 2 3 kHz bandwidth automatically the SW8 may be programmed to NOT automatically select a bandwidth Refer to Automatic Bandwidth Setting With Mode Selection DISABLE ENABLE in the Special Use Features and Functions section of this manual Generally LSB is used below 10 MHz and USB is used above 10 MHz When initially tuning in the desired station tune slowly If the station is unintelligable try the other sideband again tuning slowly A station tuned in on the wrong sideband is totally unreadable but a station mistuned on the correct sideband may sound like Donald Duck Further tuning will result in a more normal voice pitch FM OPERATION FM reception is perhaps the easiest mode to use on the SW8 The AGC and BANDWIDTH settings are not used in FM In fact attempting to activate these buttons will result in an ERROR beep All FM stations in the U S end in an odd 100 kHz i e 97 7 MHz and are spaced 200 kHz apart The SW8 has the ability to tune in 20 kHz steps to allow tuning in between stations to help elimi nate interference to weaker stations that could be covered up by stronger adjacent stations Additionally when headphones are used true st
53. rectly entered frequency or other value 6 SPEAKER This is the opening for the internal speaker of the SW8 SCAN ME recall a memory at 7 HEADPHONE JACK This connector accepts 1 8 pis pin utton p E PSN 3 stereo mono headphone connector Stereo reception is er the button eepressioh enter a two digit number possible only in the FM mode All speaker outputs are betyveen Vorand prs AIRE MEM displayed other automatically switched off when using the headphones adjacent memory channels can be recalled by use of the N _ buttons The Tuning wheel may be used to tune 8 WHIP ANTENNA The receiver has a built in tele from the recalled frequency of the selected memory scoping antenna that can be used on all bands Note that channel Please note that digit entries are interpreted as the pivot point section of the antenna must be exposed frequency entries if the MEM channel number is not out ofits nesting tube to permit vertical extension of the antenna Extend the telescoping sections and position the antenna for best signal reception Be sure the correspond ing rear panel antenna select switch is set to the WHIP position for WHIP antenna reception flashing Pressing the button first starts scanning of the current block of 10 channels The receiver will stop at each programmed channel for 5 seconds then increment to the
54. s for displayed S or F not active in FM mode Press for displayed ATT or blank not active in FM or AIR modes Press ciocx to display either Local L or alternate time Press 783 and hold until colon flashes Use keypad to enter time in HH MM format Press to start clock Press 7 eR gt ao to display alternate time CLOCK F 3 TIMER 2 hold until TIMER ON shows Use keypad to enter On time for TIMER I Press TIMER 1 CLOCK again Use keypad to enter Off time for TIMER Press TIMER 1 CLOCK again Use keypad to enter On time for TIMER 2 Press TIMER 1 CLOCK again Use keypad to enter Off time for TIMER 2 Press again to leave the set mode 3 TIMER 3 1 2 F CLOCK gt BCB and or AIR Press and hold until LOCK is displayed Pushbuttons and tuning wheel are inactive 20 Quick Reference Guide continued Lamp On Off page 7 Press to turn display backlight on or off Disable Beep page 7 Press 4 to enable or disable beep MEMORY FUNCTIONS Store Memory Channel page 13 Select bandwidth and adjust frequency
55. s s followed within two seconds by button 2 sequence AIR 9 LAMP Press TIMER CLOCK 60 40 20 9 AGC FM Press the button sequence lse lul Press then followed within 2 seconds by CLOCK depression s of the AIR displayed with MEM 29 indicated button until the 2 is Lii SiO AGC TIMER MEM sw FM Press ne 60 Se u AGC FM 0mm 3H we Bi par ULULUL 50 AGC FM 30 TIMER nod I OFF t roe i C After 3 seconds the display reverts to the frequency readout To set an event with no memory channel to be recalled exit the memory mode before enabling the event In this case the SW8 maintains its current settings Refer to ENABLING DISABLING TIMER OPERATION to enable or disable either of the two timers 18 Special Use Features and Functions The SW8 has several special features that are referred to in the main body of this Owner s manual but may require additional explanation LOCK ALL ENTRY TO KEYPAD The receiver keypad and tuning control may be locked or disabled
56. selected B External speaker connected but defective A Lock enabled A Clock s not set B Timer not properly set C Alternate clock selected A Check MASTER POWER switch on rear panel and set to ON position A Check power supply cables B Check AC ADAPTOR C Check install batteries for portable operation A Select correct antenna input B Turn off RF ATT A Check mode selection B Check external speaker A Press F and hold for 3 seconds to unlock front panel A Set clock s B Set clock s program timer ON OFF times C Check that last displayed clock is the desired one for timer event SERVICE INFORMATION You may contact R L DRAKE Service Department for additional information or assistance by calling 513 746 6990 Monday through Friday 8 00 A M 5 00 P M EST except on holidays You may also contact the R L DRAKE Service Depart ment by E mail at the following address bill frost rldrake com or by Telefax 1 513 743 4576 ONE YEAR LIMITED WARRANTY R L DRAKE COMPANY warrants to the original purchaser this product shall be free from defects in material or workmanship for one year from the date of original purchase During the warranty period the L DRAKE COM PANY or an authorized Drake service facility will provide free of charge both parts and labor necessary to correct defects in material and workmanship At its option R L Drake Company may replace a de
57. set this switch to the OFF position For normal usage of on off power control from the front panel set the MASTER POWER switch to the ON position lO Getting Started Whip Antenna SW8 World Band Shortwave Receiver fiir RRO sawanodsss AGC S AM SYNC LSB TIMER I on c MEM E LH sw 4 C VOLUME BAND TUNING 2 5 6 SCAN SSB BW MEM 8 9 STORE VFO CLEAR TIMER BEEP CLOCK TE Power Volume Tone GENERAL OPERATING INFORMATION The SW8 has been designed for ease of use Please take a few moments to read through this section and familiarize yourself with general operating information MICROPROCESSORRESET A power up reset routine will be activated anytime after the SW8 COMPLETELY loses power either internal batteries or external DC input This will be observed by the front panel display illuminating all annunciators for 3 seconds followed by the clock display However short term power failures of up to 30 minutes are masked by an internal back up capaci tor This will allow ample time for battery replacement without loss of the internal clock Note Any programmmed memory locations will NOT be lost under a power up reset due to the memory design of the SW8 BEEP TONES The SW8 responds to all key depressions with a
58. signed for either an unbalanced 75 ohm input connection that is encoun tered with coaxial feeds for example or for a two terminal balanced antenna feed with 300 ohm nominal impedance Connect to the FM connection of a TV FM outdoor antenna feed splitter if available Folded dipoles or coaxial antennas will also provide good results with this input for reception of the FM broad cast 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 If selected by the FM AIR Antenna Select switch Item 6 this input operates for the FM broadcast 87 108 MHz and the Aircraft 118 137 MHz bands only 4 ANTENNA 2 This connector can be used to attach either a low impedance 50 ohm nominal or high impedance 500 ohm nominal antenna Use the GND and 50 ohm terminals for a 50 ohm antenna use the GND and 500 ohm terminals for a 500 ohm antenna If selected by the Shortwave Antenna Select switch Item 5 this input operates for the AM Broad cast and Shortwave 100 kHz to 30 MHz bands only 5 6 7 8 9 1 2 WHIP EXT WHIP 40 820 BALANCED OUTPUT DO NOT GROUND Y BATTERY COMPARTMENT 5 SHORTWAVE ANTENNA SELECT This switch selects one of three possible antennas to be used f
59. ted 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 REMOVE THE BATTERIES IF THE 5 8 15 TOBESTORED OROTHERWISE NOT OPERATED FOR AN EXTENDED PERIOD OF TIME TO AVOID DAMAGE TO THE SW8 DUE TO POSSIBLE BAT TERY LEAKAGE OR CORROSION EFFECTS The SW8 does not rely on the batteries for retention of memory channels To insure that the clocks and timers are maintained following aloss of AC power or battery removal the SW8 mustfirst be connected to an AC power sourceor have batteries installed for a 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 resu
60. than 80 dB 55 845 MHz Greater than 80 dB 455 kHz Greater than 95 dB 0 1 to 30 MHz 20 kHz spacing SSB 2 3 kHz BW Greater than 10 dBm 20 kHz spacing Greater than 20 dBm 5 kHz spacing Threshold 1 0 uV Attack Time mSec Release Time SLOW 3 sec FAST 300 mSec Less than 4 dB change in audio output for 100 dB RF input change referenced from the AGC threshold point OPTIONAL ACCESSORY 58 A complementary styled external speaker Internal Antenna Antenna Inputs 0 1 30 MHz 87 108 MHz 118 137 MHz External Speaker Output Line Audio Output Headphone Jack DC Power Requirements 41 inch length telescoping whip for use on all bands SO 239 50 ohm connector or 3 terminal compression connector for either 50 OHM or 500 OHM input with ground 2 terminal compression connector 300 ohm balanced input 2 0 Watts into 4 ohm speaker less than 5 THD with a 9 VDC supply voltage Output is a bridged amplifier DO NOT GROUND 300 mVolts 4 7K ohms 1 8 inch stereo mono type Input 7 10 VDC Amp supplied from AC Adaptor Wall Transformer external DC Power Supply or 5 7 to 9 0 VDC supplied by 6 internally mounted D cell 1 5V batteries not supplied Current requirements approximate from 9 0 VDC Supply or Batteries with 1 4 W average Audio Output MODE BACKLIGHT OFF ON AM 570 mA 700 mA AM SYNC 600 mA 730 mA SSB 600 mA 730 mA FM
61. uses immediate response to the entered frequency If you do not press the decimal skp button a second time at the end the SW8 will automatically enter the frequency after a slight delay The second depression of the decimal SKIP Press the button to shift keyboard to numeric entry Enter frequency as follows A Shortwave and AM broadcast enter in kHz kilo hertz A maximum of 6 digits may be entered Example 700 kHz Pres ATT i DEL DEL skie skip 29660 kHz Press AIR pm BW f BW i DEL skie skip 14258 1 kHz F 7 4 AM 2 5 8 1 Press BCB SYNC AIR SSB AGC SKIP BCB OR 1 Zam 2 5 8 1 SYNC AIR SSB AGC BCB When the maximum number of allowed digits is entered the decimal point will be automatically placed between the kHz kHz digits and need not be entered B Aircraft and FM broadcast enter in MHz mega hertz A maximum of 5 digits may be entered for FM A maximum of 7 digits may be entered for Aircraft Example 97 7 MHz um ATT SKIP ATT SKIP 121 9 MHz Press BCB d AIR BCB SKIP pu SKIP
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