Radio Shack DX-394 User's Manual
Contents
1. reserved tor statons tropical areas Ham operators and international tions share 3900 4 000 MHz and 7 100 7 300 MHz interference is heavy in this range Aircraft Frequencies Most transmissions are in SSB although you car stil hear some AM transmissions Aircraft on international routes sometimes use SW Here are some ranges where you might hear aircraft communications Note Try to receive primarily in the USB mode but you can try LSB and AM alsa 4 650 4 750 MHz 6 545 6 765 MHz 8 815 9 040 MHz 10 000 10 100 MHz 11 175 11 400 MHz 13 200 13 360 MHz 15 010 15 100 MHz 180018 030 MHZ Ships and Coastal Stations Most transmissions from ships and coastal stations are in USB and CW You hear these transmissions in the fol lowing bands Note Try to receive primarily in the USB modo but can try LSB and AM 2 000 20 MHz 4 063 4 139 MHz 4 361 4 438 MHz 8 195 8 181 MHz 12 330 12 420 MHz 13 107 13 200 MHZ 16 460 16 565 MHz The Coast Guard and small toats use this band with 2 182 MHz sot asido as tho International distress and emergency channel Time Standard Frequencies The following frequencies announce the exact me of day at specified intervals WV in Fort Collins Colorado 2 500 MHz 5 000 MHz 10 000 MHz 15 000 MHz 20 000 MHz CHU in Canada 71325 MHz VNG in Australia 4 500 and 12 000 MHz Long Wave Band The 150 509 9 kHz range is know2. preas the DIMMER tution To tum ofl the lighting press the DIMMER button again USING THE LOCK BUTTON To prevent accidental frequency changes press the LOCK button This prevents you trom changing main tuning knob and all buttons except POWER and LOCK To unlock the controls press the LOCK but ten agair E USING THE ATT SWITCH To reduce intortoronco or roiso caused by signals trom a strong local broadcaster you can reduce the receiver s sensitivity by seting the ATT attenuate switch or the back of he receiver Switch ATT 20 dB fo reduce the receiver s soneitivily or 0 dB for normal sensitivity you swich ATT to 20 dB your rocoivor might not receive weak sig rals ine ATT switch affects only the antonna connected to the ANT 10 2 terminal 19 CLOCK RADIO OPERATION SETTING THE CLOCKS Your receiver has two clocks We recem mend you set the primary clock to the loca time and the secondary clock to the UTC Coordinated Universal Time alse called Greenwich Mean Time Note The receiver s time display uses the 24 hour format 1 Press and hold down TIME SET for 2 seconds C is selected ard Ihe ime diis flash on the display 2 While the clock display flashes use the number keys to antar the correct imo For example exter 30 for 6 30 Note if you make a mistake press CLEAR to erase the last git 3 Prose TME SET l
3. 000 21 200 MHz CW 21200 21450 MHz USB 12 meters 24 090 24 830 Miz CW 24 990 24 930 M tz USB 10 mete 28 000 26 300 MHz CW 28 300 25 700 MHz USB Note These ranges are not precisely olserved everywhere in the world 23 Birdie Frequencies Every receiver has birdia frequencies Birdios aro operating trequencies created inside the receiver Inese operating re quercies might interfere with broadcasts or tha same frequencies If you receive ore of these frequencies you hear only mise on frecuency Here are the birdie frequencies to waich for on this receiver 180 180 kHz in all modes 451 5 903 and 1354 5 kHz in the LSB and modes 488 5 917 and 1375 5 kHz in the USB and CW2 modos International Broadcast Frequencies International Commersial Broaccasts are found in tha following SW bands Thoso programe cttan in Engish usually con tain news commentaries music and spo cial feature reflecting tne culturo of tho broadcasting country You might find to hoar thes broadcasts between 6 00 PM and midnight you tme 24 Note Use the AM modo tc roccivo inter national shor wave signals Bena Freaueney nange Memes nh T 4 000 o 3 bd 5950 6 20 730 7906 x DET 19 16 700 15 60 17260 17400 g Trase panas
4. 30 rroculation Lw 10u Mw 7W sw Tuv SSB dB S N N SW n CW 10 dB S NYIN sw Solectvity 47 KHZ AM 7 vr 5098 15 kHz SSB CW ex 50 dB IF Rejection Le Z Spurious Rejection 10 2 son IF Frequency 15l 45 MHz nd ss 455 KHZ Antenna Impedance Loz 50 ohms Hz 5 2 Audio Output Power 10 THO 500 mW Built in Speaker 77 mm 37 8 dynamic type Power Requirement 120 volts 60 Hz 13 watts DC volte 8 watte Operating Temperature O C t0 43 C 82 F to 109 F Dimensions 233 230 8 9 3 x 9 inches Weight Ten 21 kg 4 6 Ibs Specifications are typical individual units might vary Specifications are subject to change and improvement without 29
5. To changa the times oress TIMER The time digite flach on the display 3 Enter time when you want thc focolvor to tum off For example artar tho oft Note If you do not want to s timo arose CLEAR 2 CS Turning on a Timer 1 Press TIMER 2 Enter the timer memory number for example enter 1 Tho eclecioc mo mory number flashes 3 Press ENT 4 1 you want to turn on mora timers repeat Steps 1 3 8 Proce POWER to turn o tho racoiver Cloaring a Timer If the recover la of Press POWER lo turn on tho rocoivar 2 Press TIMER 3 Enter the timer memory number 4 Press CLEAR It the receiver has already tumad cn auio matically press POWER The timer pro gram is canceled and the receiver tums of 22 USING THE SLEEP TIMER The sleep timor sets the receiver to turn off ater a set time 30 or 60 minutes so you can fall asleep as you lstan to the Press SLEEP unti the desired timo Apaears mam or END To turn off tho receiver before it automati ally turns of press POWER tum off tho sloop timor prot until tha indicator disappears LISTENING HINTS Short wave listenng is a hobby with mi lions of participants worlcwide It requires no special knowledge or skills but your enjoyment increases as you gain experi enco and develop special listening tech niques The information in this section help you
6. corrode the electronic circuits Handle te receiver gently and carefull Dropping it can damage circuit boards and cases and can causa the receiver to work impreperly Use and store the receiver only in normal temperature environments Temperature extrames can shoren the ife ol electronic devices damage batteries ard distort cr mek plastic parts Keep tho rocever away trom dust and dirt which cause promatura woar of parts Wipe the receiver with a damp cloth occasionally to it looking new Do not use harsh chemicals cleaning sovents or strong detergents to tho recarver Medilying or tampering with your receiver s internal components can cause a malfunction and might invalid the receiver s warranty and void the unit s legal certification to operate your receiver is not operating as it should take it to your local Radio Shack Tandy store for assistance SPECIFICATIONS Frequency Coverege 150 5099 kHz 510 17229 khz sw ge 1 75 29 9999 MHz SW Sub Bards 2 300 2 495 MHz 120 meters 3 200 3 400 MHz 90 metersi 3 800 4 000 MHz 5 meters 4 760 5 060 MHz 60 motors 5 950 6 200 MHz 49 maters 7 100 7 300 MHz 41 meters 9 500 3 900 MHz 31 meters 11 050 2050 MHz 25 meters 3600 18 800 MHz 21 meters 15 100 15 600 MHz 19 meters 17 550 17 900 MHz 16 motors 21 450 21 850 MHz 13 meters 25 670 28 100 MHz 11 meters Sensitivity AM 10 d3 S NI IN at
7. imer on or of NB tums noise blanker cn and off MON stores the current frequency into a monitor memory and recalls the fre quency from memory 12 LOCK disables the main tuning knob and buttons POWER and LOCK to prevent accidental operator LIMIT turns on tha limit modo ard sats the frequency range BAND selects LW 150 506 9 kHz MW 5 0 1729 9 kHz or SW 175 29 9999 MHz sequentially METER colocts cno of tho 13 Intorna tonal Broadcasting Bando FREQ directly tunes to the frequency with number and decimal keys and Y tuno up or down eoloct tho higher or lower limit froquercy in the limit mede and the search direction in the Imt bard and meter modos CLEAR clears an incorrect entr POM turns on the program mode tc set limit frequency store a frequency or set he timer Fach number kay kas a single digit printed on and s meter band printed above it Use tha digits on he keye to oer te numbers for frequency channe or a time setting Use the meter and above the key 120m for example to select an Intemational Broadcast Fre quencies Band A LOOK AT THE DISPLAY enters a decimal point when you amor a frequency ENT stores a frequency in a channel The display has several indicators hat show the receiver s current operating mode A quick look atthe display will help you uncerstanc how to operate your receive
8. in tho 90m band s channel memory 3 Pross pam 4 While CH flashes enter a me mory channel number tom 1 10 prese o for 10 5 While and the memory chan nel number flash press ENT to store the frequency Note I you wait more than 10 se conds to press ENT you must begin again Step 3 6 To store more frocuencies in the same band repeat Steps 2 5 To store a re quency from another band repeat Steps 1 5 To tune lo the desired memory channel Select the band and then press tho chan nel number USING A MONITOR MEMORY Tne receiver s monitor memory ie a tom porary storage area whore you can storo a frequency while you decide whether or not 1o save it in u channel 1 Press MON while the desiec tro quency is displayod mow ard any pre viousy stored frequency appear on the display 2 Press ENT Tha new frequency replaces the od ore in the montor memory To listen tc the moriter memory oress 17 USING THE RF GAIN CONTROL When you receive an extremely strong signal turn RF GAIN to vary the overall volume instead of using the VOLUME con trol USING THE FINE TUNE CONTROL receive SSB cl vary slowly and carefully unti the voice sounds normal When Improperly tuned voices have a low sound or sound like Donald Duck SSB signal tuning takos pationco and practce fap 1 It you ace listening to a morse codo
9. will sperd many nours listening to your receiver be sure it is placed where you can enjoy it a any timo This receiver is prirrarily designed for use in the home as a base station You can Place it on a desk shell or table ANTENNA For maximum performance you need an external long wire antenna such as a short wave antenna that will ba rrounted outside GROUNDING For safety you should connect a ground wire to the receiver This requies running a ground wire from ground screw connection on the back ol the receiver to ground connection such matal cold water pipa or metal pipe driven into the earth Your receivers front feet fold up or down Adjust tham to give you tho best view of the display THE ANTENNA To attach the supplied telescoping antenna simply sorew it clockwise inte the hole on the receiver s top For the best reception fuly extend the antenna The telescoping antenna is adequate lor strong local signals However i you use an external antenna you can receive roro strong signal No single antenna covers the entire fre quency range of the DX 394 el cienly bul tera are many diferent typus ol antennas you use Your local Radic ShackiTendy store sells wido variety of antennas Choose the ore that best sul your needs For a simplo all purpose antenna uso tho long wre type The horizontal section of the antenra should be more than 10 mate
10. 0 Listening Safely 0 Connecting an External Speaker 10 Connecting a Tape Recorder tom Understanding Your Receiver Look at the Controls A Look at the Display Receiver Operation Using the Moco Contro Selecting the Band MS Selecting the international Radio Frequney B Bard 15 Setting a Limit Tuning Range ae NT Tuning to a Station 5 SER SMS 6 Manual Tuning Direct Access Turing Sourch Tuning Memcry Tuning Using Monitor Memory Using the RF Gain Control Using the Fine Tune Conto Setting tho Frequency Stop 18 Changing the MW Tuning Increment NIE Using the Dimmer Button aces Using the Lock Putton Using the ATT Switch Clock Radio Operation Setting the Clocks Using tne timers S Programming a Timer Turiing on a Timer xix Clearing a Timer Using the Sleep Timer Listening Hints Reference Sources Bard Allocation Ham Frequencies Birdie Frequencies International Broudcast Fruquoncios e Aircraft Frequencies Ships and Coastal Stations Time Standard Frequencies Long Wave Band Frequency Conversion Troubleshooting Caro and Specifications PREPARATION Whon you aro deciding where to sot up the receiver you should consider LOCATION You
11. 2024 OWNER S MANUAL DX 394 Communications Receiver road belore using ths INTRODUCTION he time band and foquency signal strength and other indicators Five Programmable Timers kc you dor Wrequencies and times for automate storing pleasure Dual Time includes a primary clock and a secondary clock so you can sot ore to yout local tmo anc the other to local time of a city in another time zone Search Tuning scans up or down the banc for he naxt station Memory Tuning stores up to 160 tm quencies so you can quicky seloct your facite satona Direct Access Tuning tunes tothe tro quency you enter on the Keypad Rotary Tuning Adjustment lets you manually lune desred traquencies or eterne Lock prevents you trom accidentally charging the band frequency charging the clock settings or turning on or off tho timer MW Step Setting le you wasy Change the Wequoncy stop soning to match MW AM broadcast frequencies used by many other countries RF Gain Control sets the recove s d Headphones Jack lol you connect a of headphones External Speaker Jack lets you con nect an external speaker Tape Out Jack lets you connect an optional tase recorder 1995 InterTAN ine An Rights Reserved Radio Shack is registered trademark by Tandy Corporation Dual Conversion Up
12. 29 9 kHz sw 73 29 9999 MHZ Band Frequency Range in meters 120 2 300 2 495 MHz E 3200 3400 MHz 75 3 900 4 000 MHz 80 4 750 5 060 MHz 49 5 950 6 200 MHz 41 7 100 7 300 MHz at 9 500 9 900 MHz 25 11 650 12 050 MHz 13 60 13 800 MHz 19 15 100 15 600 MHz 16 17 550 17 900 MHz 1 21 450 21 850 MHz 25 670 26 100 MHz NOTICE Your receiver might cause rado or TV amerfererce even when it is operating propery To determine whether or not your receiver is causing the interference turn oft your receiver the interference goes away your receiver is causing it Try to ehminate the interference by Moving your rocsivor away from tho other recever Connecting your receiver to an at is on a diferent electrical circuit rom the other receiver Comacting your local Radio Shack Tandy store for heip 1 you cannot eliminate the interteren local laws may require you to stop using your receiver This device complies with North American regulations Operation subject to ho fol lowing conditons 1 This device must not harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation CONTENTS Preparation The Artenna Grounding Connecting Power Connecting AC Power Using Your Vehicle s Battery 5 Resetting the Receiver ne H 9 Connecting 1
13. copy of The ARAL Amateur Radio Handbook available al your local Radio Shack Tandy store CONNECTING POWER Connecting AC Power Plug the receiver s AC power cord into standard AC oue Caution 1o prevort olectrc shock the plugs blaces are polarized and tit only way Ifthe plug does not ft easily turn over and try again Do not foroa tha plug into the AC outlet Using Your Vehlcte s Battery You also power your receiver from your vehicle s cigarette lighter soceet with an optional DC cigarette ligror power cable not supplied lighter power cable that supplies 12 volts and delivers at least 500 mA Its center ip must bo set to positive and ks plug must correctly tk the DC 13 8 V jack on the back of the receiver The recommended power cable moets these specications Using a cablo that does nat meet these specifications could damage the receiver or tne power cable Insert the DO power cable s tarl plug into the DC 13 3V jack on the back of the receiver tien plug the power cable into your vehicle s cigarette lighter socket DC 13 8V Jack 2 P lis Clgaretie Lighter Socket RESETTING THE RECEIVER I the receiver s display locks up or the receiver does not work properly after you connect power you might need to reset the receiver Caution This procedure clears al the formation you have programmed inta the receiver Use this procedure only when you a
14. e a key You must begn again at Step 2 To to the previous mode press UNIT unti LIMIT disappoars from tho iplay The limit tuning range is stored in memory until you seta new range 15 TUNING TO A STATION You can tune to a desired broadcast sta don using the manual direct access search or memory tuning methods Use he lower keypad or main tuning knob to une broadcasts Manual Tuning To manually tune to a frequency repeat edly press A or Y or rotate the main tu ning knob unti the display shows the desired froquoncy Direct Access Tuning 1 Press FREQ The frequency disolay Meshes for about 10 seconds 2 While the frequency display fiashos press the number koys including tho decimal key to select the desired sta licn s frequency d Prose ENT Note Myou make a mistake press CLEAR to erase no last digit M you do not press a key tor more tan 10 seconds the display stops flashing Start again rom Step 1 M you wy eter an invan trequency Error appoa s on the display Press CLEAR or wait 5 soconds unti Error disappears from the display 16 Your receiver automatically rounds down the entered frequency to the nearest valid frequency For example if you ty to enter a frequency of 478 in IW your receiver accepts it as 470 the frequency step is set io 10 kHz see Setting the Frequency Step Search Tuning To automatically tune up or dow
15. e your hearing 10 Note Plugging in an external speaker automatically disconnects the receiver s internal speaker CONNECTING RECORDER You can connect an optional tape recorder with a microphone jack tc your receiver to record transmissions To connect it a connecting cable not suopled wit a phono plug at one ena 1 Insert the connecting cable s phono plug into the TAPE OUT jack on the back of the receiver 2 Connect the ether end of the connec ting cable to your tape recorders microphone jack Follow the ingtructons provided with your lape recorder to record transmssions Yom the receiver UNDERSTANDING YOUR RECEIVER A LOOK AT THE CONTROLS quick glance at this section should help you understand each control s function VOLUME adjusts the sound level RF GAIN adjusts the recoiver s sansi tivity MODE sets the receiving mode FINE TUNE ine tunes the reception nal ily when you tune to SSB OW Main Tuning Knob selects frequen cies STEP A STEP Y solacis tho 0 1 1 5 or 10 9 kHz tuning frequency step sequentia ly TIME SET sets the builtin clocks SLEEP tums off the receiver after 30 or 60 minutes DIMMER selects two levels of display back lighting brightness POWER turns the power on and of TIMER sets the bult n clocks and turns the
16. etting the Clocks 4 Press BAND until the desired band EM or BW appears on the dis play see Selecting the Banc 5 Tune to the desired station seo Tu ning to a Station 5 Adjust VOLUME as desired 7 Pross POWER again to turn off the receiver USING THE MODE CONTROL Tho MODE switch seting cetermines tho ype of signal that your recaivar raceives For standard broadcast and international use the AM postion code uso cr For 388 signals use the LSB or USB position help you decido whether to use USB upper sideband or LSB lower sidebanc oo tho following chart s POWER to turn on the receiver This chart shows the normal sideband mode used for the Ham bands 4 When receiving SSB on other bands try both USB and LSB until you are abla o identity the signal m m Notes If you tune through SSB signals while in the AM modo you hear only flutto ing sound Switch to the LSB or Us mode I you tune through AM signale while ucing tho L68 or USB modo you heer very annoying background tone which varies wih the seting of the tuning controle If this happens switch 10 the AM mode Setting MODE lo the STAND BY posi ion prevents you from changing the main tuning knob al buttons except POWER This position also turns of the sound SELECTING THE BAND To selec
17. mako the most of your listening time REFERENCE SOURCES Many books and magazines about short wave listening are available through your local library or newsstand See sources such as The Workd Radio Handbook Radio Amateur s Handbook Passport t2 World Band Radio Monitoring Times amd Popular Communications Those publications help you learn about the corditione that make long dietanco rocop tior possible and provide up to dete bs tings for shor wave broadcasts in English id alhor languages BAND ALLOCATION Certain portions ol tha radio spectrum ar sot aside for specific purposos Note Bands are often relomed to by wavelength For example the 19 meter tard refers to the range cf frequencies with waves about 19 meters lang Ham Frequencies Turing to the ham radio frequencies can be interestng anc helpful because ham operators often communicate emergency infocrration when other means of commi nication break down Ham radio operators use ihe following bands Portions o these bands are sel aside for continuous wave CW morsa ode communication or for single side band SSB voico communication as shown below 1 800 2 006 kHz CW 1 SR 80 meters 3 500 3 750 MHz CW 3 750 4 000 MHz LSB 40 meters 7 000 7 150 MHz CW 7 150 7 300 MHz LSB 20 meters 14 000 14 150 MHz CW 14 150 14 360 US 17 meters 18 068 18 110 MHz CW 18 110 18 168 MHZ USB 21
18. n as the long wave band Moet stations 1 this range serve as beacons for aircralt and marino navigation by continuously trans mit ng their call leters Through your local library you can find books on air and marino navigation which contain lists of the beacon stations and their locations Reception for this range ie best betwoen 6 00 PM ard midnight your time Some ships also use thi range with 500 kHz set aside as an international distress ard emergency station Most stations in this range use CW Morse coda although scmo usa AM voce transmission for weather brcad cass m FREQUENCY CONVERSION The tuning location of a station can be expressed in frequency kHz or MHz or in wavelength meters The following intor mation can help you make the necessary conversions To convert from MHz to kHz multiply by 1 000 For example 9 62 x 1 000 9 520 kHz To convert from kHz to MHz divide by 1 000 For example 2780 KHz 1000 2 78 MHz To convert from MHz to motors divide 300 by the number of MHz For example 800 7 3 41n 26 TROUBLESHOOTING Your DX 394 Commanicaticns Receiver should require very little maintenance If you have problems referto ths chart for possible soutors Problem Probable Cause Solution Receiver is totally The AC plug is rot property Check to see that the inoperative connected receiver is plugged into a wo
19. n to tha next frequency in the selected LW MW SW band 13 intornatioral broadcast band meter or lim frequency band press and hole down or Y for about 2 ee conds The receiver searches up or down in tho selected band and tunes to the first frequency finds with a strong signal Notes To tune to stations with weaker sig nals use one of the marual tuning methods I the RF GAIN is sel fully clockwis he receiver might not search up or down when you press or Y Turn the RF GAIN control counterclockwise Press A or Y for about 2 seconds to restart tho search Memory Tuning For easy selection you can store the fre quencies of your favorite stations into memory channels You can store up to 160 frequencies 10 Irequoncies each in the LW MW SW bands and 10 in each of the meter bands Follow these steps to store a frequency into memory Select the band or meter 2 Use direct access or manual tuning to lune to the frequency you want to store Note When you store frequencies in the SW band and the meter bands tho irequoncias aro stored in ether the SW band s channel mamory or tho moter bande chanai memory depending on the tuning method When a frequency or example 3 200000 MHz 00m la tunad by direct tuning using FREQ the troque stored in thw SW bands cha memory When the same frequency tuned by manual tuning using the tu ning control or or Y the frecuency is stored
20. o select E The how digit flashes 4 While the hour digit flashes use the rubar keys to enter the hour fcr tho second clock 20 Note You only need to enter the hour For example enter 4 for 4 30 The minutes change automaticaly accor ding the primary clock satling 5 Press ENT to star toth clock 1 and lock 2 The colon flashes Press TIME SET to altorrate between the lie on clock 1 and clock 2 USING THE TIMERS Your receiver has five programmablo ti mers You can store a turing frequency and onof times into each timor Whon you turn on a timer the receiver automati ally turns on and tunos to tho pro grammed frequency when tho timor feachet the programmed time When it reaches the off time the racaiver turns Note The timers are set to Clock 1 Programming a Timer 1 Set the frequency that you want the receiver to tune to when turns on example sot 12 345 MHz 2 Press TIMER So lige Within 10 eoconde onter the dodirod timer memory number 1 to 5 For example press 1 to select timer me 1 The memory number tashes the previously programmed tre quency or 0 0000 appears amp Emer the time when you wart the receiver totum on For example enter Note If you want to set only the off lime press CLEAR 7 Press TIMER The time digits tash on the e 1 i
21. per Superhetero dyne elimirates any interfererce from IF Intermaciare Frequency images s2 you only hear tno selected frequency Monitor Memory lets you temporarily save a froquoncy Two Antenna Jacks lets you use high and low impedance antennas ATT Switch reduces the receiver s sonsitivity to strong local signale when using kow impedance antenna tor Memory Backup roplacsment treo rechargeable ithu battery keeps chan nels stored in memory for more tn 1 month during power loss Two Power Options lots you power the receiver from standard AC power or kom your vehicle s battery wih an opliona DC cigaratte lighter power cable For your records please record your receiver s serial number in the space pro vided Tha number is locatod on tho back of the receiver Soria Numbor Warning To prevent fire or shock hazard do not expose tnis receiver to rain or A Al AFOUCE me mus OF Sio Co NOT REMOVE COVER OF NO USER SERVICEABLE PARTE INSIDE REFER SERVICING TO QUALIFIED PERSONNEL Tio nba tendi niot you AX SER imi oa reve qe linear preste erri egre x atate ok ol Coons eect Do rot span ma re Ere iine EN A bee dud in tho erature accompany ing his receiver Your DX 334 receiver is preset to cover the following vands Band Frequency Range w 150 509 9 kHz MW AM 510 17
22. r Ez 2 dB a LIC Hn 188 pears when you sot a 30 oF 69 timer shows tne tme for two time zones TIMER ON OFF tho number from 1 to Sundor this incicator shows the timer con and which timar is active SIGNAL STRENGTH meter indicates signal strength LIMIT appears when the receiver is in the limit frequency mode LM MW and SW shows the band the receiver is currently tuned to long wave DW medium wave or short wave or Y appoare when you set a limit frequency range or press or V sov ci EL Frequency indicator indicator your tuned frequency from 150 to 29 9999 MHz m uopears when band meter is selected or a frequency is set PGM tho number to the right of this indicator shows the programmed channel appears when noise banker is active MON appears when the receiver is tuned to a monitor memory STEP kHz appears with digits to shew which frequency step 0 1 1 5 9 or 10 the recsivor is set to ESI appears when you tum on the lock function RECEIVER OPERATION S 4 Tum VOLUME fully counterclockwise and RF GAIN fully clockwise before you turn on the racsivar 2 Solect the operation mode STANDBY AM LSB USB CW1 or CW2 ses Using the Mode Contror 5 Pr Note If the clock display is flashing set the time see S
23. re sure your recalver is not working property Insert a pointed object such as straight ened nape clip into the RESET hoe on the back of tho receiver then remove it Tho Clock 1 time display flashes soo Saning the Clocks CONNECTING HEADPHONES For privato listening you can connect an optional pair of headphones with 3 5 mm sinch plug to the recewer Use monaural headphones Insert the headphones plug into te HEADPHONE jack on the front of te receiver CONNECTING AN EXTERNAL SPEAKER You can connect an optional external speaker with a 3 5 mm einch plug io te recower Use an amp ohm external speaker capabile of handing cvor 5 watts of power Insert the speaker cable s plug into the EXT SPKR jack on the back of the receiver Note Plugging in headphones automati cally disconracts the internal speaker Listening Safely To protect your hearing follow thoso guidelines when you use headphones Sot the volume to its lowest setting before you begin istering Aftor you put on the headphones adjust the vo lume to a comfortable listening level Do not listen at extremely high volume levels Extended high volume listening lead to permanent Fearing los Once you estabish comfortable is tening level do not increase the vo lume Over time your ears adapt to the volume level so a volume level that does not cause discomfort might stil damag
24. rking AC cutet The optional DC power Check to be sure the power cable is not properly con cable is fully inserted into nected the De 13 8V jack and cigarette lighter Poor or na reception Improperly connected Check to be sure the antenna antenna ic properly connected oer reception on SW Try to receive between band 6 00 PM and midnight oer rocoption cn LW MW Movo the rocolvor to loca and SW band ton with better reception incorrectly programmed Roprogram the frequen frequencies cles correctly Error oppoars on tho Programming orror Roprogram tho troquon display clos Keys do rot work or display Undeterrirec error Reset the receiver see changes at random Revolting thw Rocuivor The MODE selector is sot to Set the MODE selector STAND BY the desired mode Search stope where there Birdies Using an outdoor antenne is nc clear signals Ihese sign ROTARY TUNING and front Telcckfuncionisact Press LOCK to unlock tno panel keys do not respond vated operation If you cannot solve the problem contact your local Radio Shack Tandy store for assistance CARE AND MAINTENANCE Your Radio Shack DX 384 Communications Receiver is an example of superior design and craftsmanship The folowing suggestions wil help you care for your receiver so you enjoy it for years OOOO Keep the receiver dry If it gets wet wipe it dry immediately Liquids can contain minerals that can
25. rs 30 feet Mount the antenna as high as possiole mere than 5 meters 15 feet trom the ground and away from power lines buildings and metal struc tures Connect the antennz s phono plug to the ANT MZ jack on the back of the receiver ANT ANT odB 2008 LOZ Hi Z To Receivers GND Terminal A dipole antenna is made up ol lwo peces ol wire each of the total length Con noct the artenna s PL 259 plug to he ANT 10 2 jack on the back of the receiver Caution Do not run tha cable aver sharp edges or moving objects Warning Usa axtreme caution when you install or remove an outdoor antenna If The amanna starts to fall let it gol It souks contact overhead power lines the antenna touches a power line contact with the antenna mast cable or guy wiron can cause electrocution and death Cali ne power company to remove the antenna DO NOT attempt to do so your sel GROUNDING To insure the best reception you must always connect a heavy gauge ground wire not supplied to the GND screw on tho back of the receiver Connect the other end either to a metal cold wate pipe not hot watar and not natural gas pipe fo a motal ground rod not supplied driven into the ground Or you can bury copper plato or copper net in tne ground and connect to i Ground Rod Underground For more information about antennas and grounding obtain a
26. signal adust FINE TUNE for the pitch of tonc Which best suits you Note in the Ham bands most of the activity is in code or SSB 18 SETTING THE FREQUENCY STEP Station frequencies are generally assigned in standard tuning increments to Tecuce broadcast interference Your receiver is prosel to change and search for frequencies in the standard conven tional increments However your receiver has the capabilty to change the frequency step tor easier incremental tuning or increased search capabilty The following lable shows the default tuning stops T Band Tuning increment w Dec mw S00 Changing me MW Tuning increment ow m Press STEP A or STEP Y to coloct your desired tuning step As you ress STEP of STEP Y the frequency stop appears under STEP kHz on the display in this order 0 1 1 5 1000 CHANGING THE MW TUNING INCREMENT In the United States the MW band fre quoncias step in 10 kHz increments In Sore countries tha MV band frequencies step in 9 kHz increments Your receiver has the capability to shi between these lav sep increments Here is how to change the step 1 Press POWER to tur off the receiver 2 While pressing STEP A or STEP Y prosa POWER CO c moods Tho 10 KHz step is changed to 9 KHz vice versa If you want to change it back rapoat the procedure USING THE DIMMER BUTTON light up tho display
27. t the long wave LW medium wave MW or short wave SW band press BAND unti the desired band appears on the Cc rrr eo ee Selecting the International Radio Frequency Band 1 Press METER to display the current meter band 2 Press METER agein you want to change the meter band Tne meter band flashes tor 10 seconds Whio the moter bund flashes press the desired meter band key For examp to soloct the 90 mutar bad press tom SETTING A LIMIT TUNING RANGE You can set a frequency range you can tune to frequencies between lowor and upper limita 1 Proce LIMIT LIMIT appears on tho display 2 Press POM A flashes for about 10 seconde the lower limit of tho frequency range including the decimal point To sel 150 kHz enter 150 To set 1 MHz enter 1000 or 1 To sot 10 MHz entor 10000 or 10 Note you try to enter invalid frequency 100 for example Error appears on the display Press CLEAR or wait 5 seconds urtil Error disappears from the display You cannot use the main tuning knob to a imit tuning range 4 Press LIMIT Y flashes for about 10 5 Enter the upper Imit of the frequency range including the decimal point 6 Pross ENT 7 Press A or to search through the frequencies in the selectod band Notes M you make a mistake in Stop 3 or 5 press CLEAR to erase the last digit It you wait more than 10 seconds to res
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