Radio Shack DX-398 manuel d'utilisation

Cat. No. 20-228 O WNER’S MANU AL All-Band Shortwave Receiver Please read be f ore usin g this equipment. with Radio Data System DX-398[...]

2 FEATURES Your RadioShack DX-398 All-Ban d Shortwave Receiver with Radio Dat a System brings you the voices of the world. In the 14 international shor t- wave (SW) bands, you can hear news broadcasts and other progr ams from sources arou nd the wo rld, su ch as the British Broadcasting Corporation, Ra- dio Cairo, and Radio Beijing. You can set you[...]

3 Auto Tuning System (ATS) — t he re- ceiver finds the stations with strong signals and stores the m in memory in order by signal st rength. Rotary Tuning Dial — le ts yo u manu - ally tune des ired freque ncies. You c an select a higher tunin g increment for faster tuning or a lower one for fine tun- ing, or lock the dial t o prevent a cciden-[...]

4 Your receiver is preset to cover the following bands: Band (Meters) Frequency Range (MHz) 120 ........ ............. ........... 2.300–2.495 90 .......... ............. ........... 3.200–3.400 75 .......... ............. ........... 3.900–4.000 60 .......... ............. ........... 4.750–5.060 49 .......... ............. ........... 5.9[...]

5 CONTENTS Preparation .... .......... .......... ......... .......... .......... .......... ......... .......... .......... ......... ...... 7 Connecting to P o wer ............. ............. ............. ............. ............. ................ ...... 7 Installing Inter nal Batter ies ....................... ................ ............. .[...]

6 Memory Functions ............... ... ... ... ............. ... .... ... ... ............. ... ... .... ... ............. ... . 27 Storin g FM, MW , or L W F requencies in Memo r y .......... ............. ............. ....... 27 A utomatic Storage .............. ............. ............. ............. ............. ................ . 27 Manual[...]

7 PREPARATION CONNECTING TO PO W E R You can power the receiver from inter- nal batter ies, standar d AC pow er, or your vehicle’s battery. Installing Internal Batteries You can use four AA batteries ( not supplied) to p ower the rec eiver. For the best performan ce and longest life, we recommend alk aline batteries , available at your local Radi[...]

8 • When y ou finish using the A C adapter , unplug it f rom t he A C out- let first, then d isconne ct it f rom th e receiv er . Follow these steps to us e AC pow er . 1. Set the adapt er’ s voltage s witch to 6V . 2 . Line up the 5.5 mm outer diam- eter/2.1 mm inner diameter b a r r e l p l u g w i t h the adapter’ s soc ke t so it reads ?[...]

9 2. Inser t the adapter ’ s barrel plug into the receiv er’ s DC IN 6V jack. 3. Push the adapte r’ s plug into the v ehicle’ s ciga rette-ligh ter sock et. ADJUSTING THE T ELESCOPING ANTENNA For the be st recept ion, ad just th e tele- scoping antenna fo r the desired band . FM — Pull up t he antenna ba se about halfway then fully exte n[...]

10 CONNECTING HEADPHONES For private listeni ng and for stereo sound during FM ster eo broadcasts, you can plug optio nal stereo head - phones with a 1 / 8 -inch (3.5 mm) plug (available at your lo cal RadioShack store) into the jack on the left side of the receiver. This automatically dis- connects the intern al speaker. When you connect stere o h[...]

11 To connect a tape r ecorder, you need a mono patc h cord (not supplied) with a 1 / 8 -inch (3.5 mm) plug on both ends. Your local R adioShack store ca rries a wide selection of mono patch cords. Insert the cor d’s plug into th e REC LINE OUT jack on the left side of the receiver, then connect the other end of the cord to your tap e recorder ?[...]

12 USING THE MEMO LABEL You can use the memo la bel under the receiver’s stand to recor d help ful inf or- mation, such as t he memory lo cation numbers of your favorite stations. SETTING THE MW (AM) T UNING INCREMENT In the Unit ed States, t he Federal Com- munications Commission (FCC) as- signs frequen cies for stations in the MW band in 10-kHz[...]

13 UNDER STANDING Y OUR RECEIVER Once you understand a few simple terms we use in this manual and familiarize yourself with your re ceiver’s featur es, you can start using your receiver to liste n to the world! PO WER — turns the r eceiver o n and off. — turns on the displa y light for ab out 12 se conds (if y ou installed b atteries) o r unt[...]

14 AT S / M W — selects the MW (medium wave ) band and let s you select MW sta tions using your receiver’s autom atic tuning system. METER/SW — selects the SW (short wave) band, and lets you scan for a shortwave frequency in one of the receiver’s 14 meter bands. Number Keys — each key has a single-digit label and a b and range. The sing l[...]

15 BASIC OPERATION T URNING THE RECEIVE R ON AND OFF Press PO WER to tu rn on the r eceiver, then adjust VO L U M E to a co mfortable listening level. The display shows the band, frequen- cy, time, and signal stren gth (with 10 as the stro ngest si gnal). When you press PO WER to turn off the receiver, the battery power ind icator appears on the di[...]

16 Press to lock all the front panel buttons and ROT ARY T U N I N G . ap- pears. You can still adjust VO L U M E , TO N E , and other controls. To unlock the but tons, pres s again. disappears. SETTING AND VIE WING THE LOCAL TIME Your receiver h as two cl ocks. One dis- plays your lo cal time and the other le ts you display the time in an y of 42 [...]

17 • If you enter an inv a lid time, the cloc k beeps twice and E (e rror) appears f or about 1 second. Repeat Steps 3–4 to ente r the correct time. 5. Press EN TER . The time you set appears , and the seconds star t counting from 0. Note: The receive r does not dis- pla y the seconds. VIEW ING A W ORLD TIME Important: You need to set your loca[...]

18 T UNING STATIONS Note: “Special Tuning Controls” o n Page 24 contains more information about using your receiver’s co ntrols. Selecting a Band Press AT S / F M , AT S / L W , AT S / M W , or METER/SW to select th e band. (Press AT S / M W f or AM.) To select a smaller band within the SW band, press METER/SW again . When m flashes on the r [...]

19 If you set STEP to FA S T , the tuning in- crements are the same as when you press TUNING or . If you select SLO W , the tuning incr ements are smaller so you can fine tune the fre - quency. Note: You can tune stand ard AM, up- per sideband (USB), and lower side- band (LSB) freq uencies. For mor e information, see “Tuning SSB Sta- tions” on [...]

20 Notes: • When scanning, the re ceiv er only searches for frequencies with strong signals . T o search f or sta- tions with w eaker signal s, use on e of the man ual tuning metho ds. • When scanning in a lo wer band, the receiv er searches only within the selected band and stops at the upper and lo w er limits of the band. • Y our receiv er[...]

21 Note: If you pre ss a number key for a memor y location numbe r where the re is no station stored , MEMOFREE flashes for a fe w seconds. Then t he receiver tune s the station you previously tuned. DX-398 SHOR TWAVE P AGES CHAR T Note: All frequencies are in MHz. Pag e Country (Stations) Memory Lo cation 123456789 1 AUSTRLIA (Radio A u stralia) 5[...]

22 Pag e Country (Stations) Memory Lo cation 123456789 9 ENGLAND (BBC World Ser vice) 11.750 11.835 12 .095 15.220 15 .400 15.575 17 .830 17.840 21 .660 10 FRANCE (Radio Fr a n c e Intl.) 11.615 13.625 15 .325 15.530 17 .620 11 GERMANY (Deutsche W e lle-V oice of Ger- many) 5.960 6.040 6. 085 6.145 6. 185 9.515 9. 535 9.615 9. 640 12 HOLLAND (Radio[...]

23 Pag e Country (Station) Memory Lo cation 123456789 20 S AFRICA (Channel Africa) 3.220 5.955 9.530 9.675 11.900 15.240 21 SWEDEN (Radio Sweden) 6.065 6.090 7. 115 7.290 11 .650 13.740 15.240 22 SWITZLND (Swiss Radio Intl.) 6.135 9.885 9. 905 13.635 23 TAIWAN (V oice of Fr e e China) 5.950 7.130 7. 445 9.680 11 .740 15.600 17.750 24 U.S.A. (V oice[...]

24 ADJUSTING THE T ONE Set TO N E to NEWS to enhance bro ad- cast voices while listening to talk shows or news programs on SW, MW, and LW frequencies. Set TO N E to MUS IC to enhance treb le and bass response when listening to a music program (e specially FM pro- grams). Set TO N E to NORM to help reduce in- terference. SPECIAL T UNING CONTR O LS S[...]

25 AM RF GAIN on the left side of the re- ceiver lets you tun e a received signal for the best SW recep tion. If the sign al is weak, turn AM RF GAIN toward +. If the sound is d istorted, turn AM RF GAIN toward –. T UNING SSB STATIONS SSB (single sideband) is very popular among amateu r radio and business ra- dio users because of its supe rior si[...]

26 Follow these steps to use RDS. 1. T urn on the receiver . 2. T une the re ceiv er to an FM station that transmits RDS ( and CT) in for- mation. 3. Set TIME SET on the r ight side of the receiver to AU TO . 4. Make sure that your local time (as descr ibed in “S etting an d Viewing the Local Time” on P age 16) has been set co rrectly . (The re[...]

27 MEMORY FUNCTIONS Besides tuning to the preprogrammed shortwave stations (see “T uning Pre- progr ammed Shor twav e Stations” on P age 20), you can store an d then quickly tune up to 94 frequencie s in your receiver ’s memory locat ions . The memory location s are grouped into pages (nine memory loca tions per page). You can store up to 1 8[...]

28 3. Repeatedly pres s PA G E to select the page wher e you w a nt to store the frequency . 1 or 2 appears under PAGE . Notes : • PAGE flashes only when the receiver is set to SW mode. • If y ou wait more t han 10 sec- onds to press PA G E , PAGE stops flashing. • If y ou pressed AT S / LW in Step 1, PAGE does not appear be - cause there is [...]

29 4. While PAGE and MEMO flash, repeatedly pre ss TUNING or to select the page where y ou want to store th e frequen cy . The page’ s number appears under PAGE and the name of th e page’ s countr y appears as y ou press TUNING or . Fo r each page , the numbe r of the first av ailable empty memory location in that pag e flashes next to MEMO . N[...]

30 Note : If you wait more than 20 seconds to tur n MANU AL TUNING , the cursor stops f lashing. I f this happens , star t again at Step 4. 6. When the character you w a nt appears , press TUNING to mov e to the ne xt position, then rotate MANU AL TUNING to select the next character . Note: If y ou want to correct a character y ou entered, press TU[...]

31 4. Use the number k eys to enter the ne w memor y location numb er . The receiv er beeps. USING PRIORITY You can store one MW/LW/F M station as the priority statio n, then quickly re- call it. 1. T une to y our fa vorite statio n. 2. Press M/MEM. 3. Press PRIORITY to store the sta- tion in the pr ior ity loca tion. Note: If you pr e viously stor[...]

32 TIMER FUNCTIONS USING THE TIMER ALARMS Your receiver h as three timer al arms. You can set the se alarms to sound (buzzer or radio) at a t ime you set. Setting an Alarm 1. If you w ant the rad io to tur n on at the alar m time, tune to the desired station. Then press M/MEM . MEMO and the memo r y location wher e the station is programmed flash f[...]

33 T urning a Timer Alarm On or Off To turn off t he alarm so it does not sound again, pre ss TIMER 1 , TIMER 2 , or TIMER 3 . Then pres s C while flashes. If you want to turn on a timer alarm again, press TIMER 1, TIMER 2, or TIM- ER 3 . Then press ENTER while and 1 , 2 , or 3 flash. Timer Recor ding You can connect a ta pe recorder to the receive[...]

34 LISTENING HINTS Shortwave listening is a hobby with thousands o f participan ts worldwide . It requires no special kno wledge or skills, but your enjoyment increases as you gain experience and d evelop spe- cial listening techniques. The information in this sectio n can help you make the most of your DX-398. REFERENCE SOUR CES Many books and mag[...]

35 Amateur radio operators use the fol- lowing bands. Por tions of these bands are set aside fo r continuous wave (CW) Morse code communication or for single sideband (S SB) voice com- munication, as shown below. 160 meters: 1,800–2,000 kHz: SSB 80 meters: 3,500–3,800 kHz: CW 3,800–4,000 kHz: SSB 40 meters: 7,000–7,150 kHz: CW 7,150–7,300[...]

36 Air c raft Frequencies Aircraft on international rout es some- times use SW. Most transmissions ar e in SSB, although you can still hear some MW transmissions. Here are some bands where you might h ear air- craft communications. 4,650–4,75 0 kHz 6,545–6,76 5 kHz 8,815–9,04 0 kHz 11,175–11,400 kHz 13,200–13,360 kHz 15,010–15,100 kHz 1[...]

37 LISTENING GUIDE The following list contains some of t he more frequent ly heard stat ions. All stations broadcast in English unle ss otherwise specified. You can hear these stations throughout Nort h Am erica . Howe ve r, re cept ion varie s b ased on t h e seaso n, tim e of day, and a number of other conditio ns. This information can change at [...]

38 kHz Station Location Remarks 5,950 Guyana Broadcasting Ser vice Georgetown, Guyana 5,954 Radio Casino Puer to Limon, Costa Rica 5,960 Radio Canada Interna tional Montreal, Canada 5,980 Radio RSA Johannesburg, South Africa 6,005 CFCX Montreal, Canada 6,025 Radio Mala ysia K uala Lumpur , Mala ysia Programs in Chinese 6,045 Radio A ustralia Lyndhu[...]

39 kHz Station Location Remarks 9,610 Radio-TV Algeria Algiers, Algeria Programs in Arabic 9,620 Radio Berlin Interna tional Berlin, Ger many 9,645 Radio Norwa y Oslo , Norwa y 9,720 Radio Iran T ehran, Iran Programs in F arsi 9,745 HCJB Quito , Ecuador 9,770 A ustrian Radio Vienna, Austria 9,800 Radio Kiev Kiev , Ukraine 9,835 Radio Budapest Budap[...]

40 kHz Station Location Remarks 15,084 V oice of Iran T ehran, Ir an Programs in F arsi 15,135 Radio Moscow Moscow , Russia 15,165 HCJB Quito , Ecuador 15,190 OR U Brussels, Belgium 15,205 All India Radio Ne w Delhi, India 15,260 BBC London, England 15,265 Finnish Radio Helsinki, Finland 15,275 Radio Sweden Stockholm, Sw eden 15,305 Swiss Radio Int[...]

41 BIR DIES Birdies are the pro ducts of internally ge nerated signals that ma ke some frequencies difficult or impossibl e to receive. If you program a birdie frequ ency, you hear only noise on that fre quency. The most common bir dies to watch for on this receiver are: Notes: • See “Storing SW F requencies in Memory” on P age 28 f or more i[...]

42 Amateur Shor twave Bands (in MHz) 3.500 – 4.000 MHZ 80 Meters 7.000 – 7.300 MHz 40 Meters 10.100 – 10.150 MHz 30 Meters 14.0 – 14.350 MHz 20 Meters 18.068 – 18.168 MHz 17 Meters 21.000 – 21.450 MHz 15 Meters 24.890 – 24.990 MHz 12 Meters 28.000 – 29.700 MHz 10 Meters[...]

43 T R OUBLESHOOTING We do not expect you to have any proble ms with your receiv er, but if you have a problem, t he informatio n in this c hart might help. If the prob lem persists, ta ke the receiver to your local RadioShack sto re for assistance. SYMPT OM POSSIBLE CA USE SUGGESTION Weak or inte rmittent sound. The internal ba tteries are weak. C[...]

44 CARE AND MAINTENANCE Your RadioShack DX-398 All- Band Shortwave Rece iver with Radio Data System is an example of su perior design an d craftsmanshi p. The following suggestions will help you care for your receiver so you can enjoy it for years. Keep the receiver dry . If it gets wet, wipe it d ry immediat ely. Liq- uids might contain minerals t[...]

45 RESETTING THE DISPLA Y If the display shows random chara c- ters or does no t work properly, you might need to re set it. Important: This procedur e clears t he set time and resets t he receiver’s mi- croprocessor (the compon ent that controls how the rece iver operates), but all statio ns remain stored. Re set the receiver only when you are s[...]

46 SPECIFICATIONS Circuit: FM ............ ............. ............. ............ ................. ............. ............ ......... Heterodyne L W/MW/SW ................. ............. ............. ................ Du al-Conv e rsion Heterody ne Frequency Range: FM .. ... .... ... ... ... ............. ... ............. ... ............. ..[...]

47 NOTES[...]

RadioShac k A Division of T and y Corporation Fort W or th, T exas 76102 3818626A 08A00 Printed in T aiwan Limited Ninet y -Da y Wa r r an t y This product is warranted b y RadioShack a g ainst manufacturin g defects in material and workman- ship under normal use for ninet y ( 90 ) da y s from the dat e of purchase from RadioSh a ck compan y - owne[...]