Radio Shack Radio DX 398 User Guide

Cat. No. 20-228  
OWNER’S MANUAL  
DX-398  
All-Band Shortwave Receiver  
with Radio Data System  
Please read before using this equipment.  
 
Auto Tuning System (ATS) — the re-  
ceiver finds the stations with strong  
signals and stores them in memory in  
order by signal strength.  
and select up to nine MW/FM frequen-  
cies in two pages, nine LW frequencies  
in one page, and 261 SW frequencies  
in 29 pages.  
Rotary Tuning Dial — lets you manu-  
ally tune desired frequencies. You can  
select a higher tuning increment for  
faster tuning or a lower one for fine tun-  
ing, or lock the dial to prevent acciden-  
tally changing the tuned frequency.  
Edit — lets you create and edit station  
names for FM/MW/LW bands, page  
names for SW bands, and home/world  
city names for easy identification.  
Tone Control — lets you adjust the  
tone setting for different types of  
broadcasts such as news, music, and  
so on.  
Memory Lock — prevents accidental  
frequency changes.  
Control Lock — prevents accidental  
setting changes.  
Battery Power/Signal Strength Indi-  
cator — displays the battery’s power  
and the strength of the received signal.  
Sleep Timer — lets you set the receiv-  
er so it turns itself off after a length of  
time you set, so you can fall asleep as  
you listen to it.  
Memo Label — lets you record helpful  
information such as the memory loca-  
tion numbers of your favorite stations.  
MW Step Setting — lets you easily  
change the frequency step setting to  
match the MW (AM) broadcast fre-  
quency step used by many other coun-  
tries.  
Three Power Options — let you pow-  
er the receiver from internal batteries,  
standard AC power (with an optional  
AC adapter), or your vehicle’s battery  
(with an optional DC cigarette lighter  
adapter).  
RF Gain Control — lets you adjust the  
receiver’s sensitivity when you listen to  
SW/LW/MW broadcasts, to provide  
the best possible reception.  
Narrow/Wide Control — lets you re-  
duce interference from adjacent sta-  
tions when you listen to SW, MW (AM),  
and LW broadcasts.  
Page Memory Location — lets you  
store and select frequencies in storage  
locations called pages. You can store  
3
 
Your receiver is preset to cover the  
following bands:  
THE FCC WANTS YOU  
TO KNOW  
Band (Meters)  
Frequency Range  
(MHz)  
This equipment complies with Part 15  
of the FCC Rules. Operation is subject  
to the following two conditions: (1)  
This device may not cause harmful in-  
terference, and (2) this device must  
accept any interference received, in-  
cluding interference that may cause  
undesired operation.  
120 ................................ 2.300–2.495  
90 .................................. 3.200–3.400  
75 .................................. 3.900–4.000  
60 .................................. 4.750–5.060  
49 .................................. 5.900–6.200  
41 .................................. 7.100–7.350  
31 .................................. 9.400–9.990  
25 .............................. 11.600–12.100  
21 .............................. 13.500–13.870  
19 .............................. 15.100–15.800  
16 .............................. 17.480–17.900  
15 .............................. 18.900–19.020  
13 .............................. 21.450–21.750  
11 .............................. 25.600–26.100  
Your receiver might cause TV or radio  
interference even when it is operating  
properly. To determine whether your  
receiver is causing the interference,  
turn it off. If the interference goes  
away, your receiver is causing it.  
Try to eliminate the interference by:  
• moving your receiver away from  
the TV or radio  
• connecting your receiver to an  
outlet that is on a different electri-  
cal circuit from the TV or radio  
• contacting your local RadioShack  
store for help  
If you cannot eliminate the interfer-  
ence, the FCC requires that you stop  
using your receiver. Changes or modi-  
fications not expressly approved by  
RadioShack could void the user’s  
FCC authorization to operate this  
equipment.  
4
 
CONTENTS  
Preparation ........................................................................................................... 7  
Connecting to Power ....................................................................................... 7  
Installing Internal Batteries ....................................................................... 7  
Using Standard AC Power ........................................................................ 7  
Using Vehicle Battery Power ..................................................................... 8  
Adjusting the Telescoping Antenna ................................................................. 9  
Connecting an External Antenna .................................................................... 9  
Connecting Headphones .............................................................................. 10  
Listening Safely ...................................................................................... 10  
Traffic Safety ........................................................................................... 10  
Connecting a Tape Recorder ........................................................................ 10  
Using the Stand ............................................................................................ 11  
Using the Memo Label .................................................................................. 12  
Setting the MW (AM) Tuning Increment ........................................................ 12  
Understanding Your Receiver .......................................................................... 13  
Basic Operation ................................................................................................. 15  
Turning the Receiver On and Off ................................................................... 15  
Lighting the Display ....................................................................................... 15  
Locking the Controls ..................................................................................... 15  
Setting and Viewing the Local Time .............................................................. 16  
Viewing a World Time ................................................................................... 17  
Changing a World City Name ........................................................................ 17  
Tuning Stations .............................................................................................. 18  
Selecting a Band .................................................................................... 18  
Manual Tuning ........................................................................................ 18  
Direct Access Tuning .............................................................................. 19  
Scan Tuning ............................................................................................ 19  
Tuning Preprogrammed Shortwave Stations ................................................. 20  
DX-398 Shortwave Pages Chart ................................................................... 21  
Adjusting the Tone ......................................................................................... 24  
Special Tuning Controls ................................................................................ 24  
STEREO/MONO-FM .............................................................................. 24  
WIDE/NARR.-AM ................................................................................... 24  
AM RF GAIN ........................................................................................... 24  
Tuning SSB Stations ..................................................................................... 25  
Using RDS .................................................................................................... 25  
5
 
Memory Functions ............................................................................................. 27  
Storing FM, MW, or LW Frequencies in Memory ........................................... 27  
Automatic Storage ................................................................................... 27  
Manual Storage ....................................................................................... 27  
Storing SW Frequencies in Memory .............................................................. 28  
Assigning a Name to an FM/MW/LW Station or SW Page ............................ 29  
Deleting a Station You Stored ........................................................................ 30  
Locking/Unlocking a Stored Station ............................................................... 30  
Moving a Frequency to Another Memory Location ........................................ 30  
Using Priority ................................................................................................. 31  
Timer Functions ................................................................................................. 32  
Using the Timer Alarms ................................................................................. 32  
Setting an Alarm ..................................................................................... 32  
Silencing the Alarm ................................................................................. 32  
Using the Snooze Feature ...................................................................... 32  
Turning a Timer Alarm On or Off ............................................................. 33  
Timer Recording ..................................................................................... 33  
Using the Sleep Timer ................................................................................... 33  
Listening Hints ................................................................................................... 34  
Reference Sources ........................................................................................ 34  
Frequency Conversion ................................................................................... 34  
Band Allocation .............................................................................................. 34  
Amateur Radio Frequencies ................................................................... 34  
International Frequencies ........................................................................ 35  
Aircraft Frequencies ................................................................................ 36  
Ships and Coastal Station Frequencies .................................................. 36  
Time Standard Frequencies .................................................................... 36  
Longwave Band ....................................................................................... 36  
Listening Guide .................................................................................................. 37  
Birdies ............................................................................................................ 41  
Amateur Shortwave Bands in the US ............................................................ 41  
Amateur Shortwave Bands (in MHz) ....................................................... 42  
Troubleshooting ................................................................................................. 43  
Care and Maintenance ....................................................................................... 44  
Resetting the Display ..................................................................................... 45  
Specifications ..................................................................................................... 46  
6
 
PREPARATION  
2. Slide four AA batteries into the  
compartment on top of the lift-out  
ribbon, according to the polarity  
symbols (+ and –) marked next to  
the compartment.  
CONNECTING TO  
POWER  
You can power the receiver from inter-  
nal batteries, standard AC power, or  
your vehicle’s battery.  
3. Replace the cover.  
Cautions:  
Installing Internal Batteries  
• If you will not be using the receiver  
with battery power for several  
months, remove the batteries.  
You can use four AA batteries (not  
supplied) to power the receiver. For  
the best performance and longest life,  
we recommend alkaline batteries,  
available at your local RadioShack  
store.  
• Dispose of old batteries promptly  
and properly.  
Using Standard AC Power  
Cautions:  
To power the receiver from standard  
AC power, you need an optional AC  
adapter, such as Cat. No. 273-1662.  
• Always use fresh batteries of the  
required size and type.  
• Do not mix old and new batteries  
or different types of batteries  
(standard or alkaline).  
Note: Connecting an AC adapter dis-  
connects internal batteries.  
Caution: You must use a  
Class 2 power source that  
Follow these steps to install the batter-  
ies.  
!
supplies 6 volts DC and deliv-  
ers at least 300 mA. Its center tip must  
be set to negative and its plug must fit  
the receiver's DC IN 6V jack. The rec-  
ommended adapter meets these  
specifications. Using an adapter that  
does not meet these specifications  
could damage the receiver or the  
adapter.  
1. Remove the battery compart-  
ment’s cover by sliding the cover  
in the direction of the arrow on the  
cover’s tab.  
7
 
• When you finish using the AC  
adapter, unplug it from the AC out-  
let first, then disconnect it from the  
receiver.  
Caution: You must use a DC  
cigarette lighter adapter that  
supplies 6 volts DC and deliv-  
!
ers at least 300 mA. Its center tip must  
be set to negative and its plug must fit  
the receiver's DC IN 6V jack. The rec-  
ommended DC cigarette lighter adapt-  
er meets these specifications. Using  
an adapter that does not meet these  
specifications could damage the re-  
ceiver or the adapter.  
Follow these steps to use AC power.  
Caution: Always plug the DC ciga-  
rette lighter adapter into the receiver  
before you plug it into your vehicle's  
cigarette-lighter socket. Always un-  
plug the adapter from the vehicle's  
cigarette-lighter socket before you un-  
plug it from the receiver.  
1. Set the adapter’s voltage switch to  
6V.  
2. Line up the 5.5 mm outer diam-  
eter/2.1 mm inner diameter  
barrel plug with the adapter’s  
socket so it reads –TIP, and insert  
the plug into the socket.  
Follow these steps to power the re-  
ceiver from your vehicle’s battery.  
3. Insert the barrel plug into the  
receiver’s DC IN 6V jack.  
4. Plug the adapter into a standard  
AC outlet.  
Using Vehicle Battery Power  
1. Set the DC cigarette lighter  
adapter’s voltage switch to 6V.  
To power the receiver from your vehi-  
cle’s battery, you need an optional DC  
cigarette lighter adapter, such as Cat.  
No. 273-1802.  
8
 
2. Insert the adapter’s barrel plug  
SW — Pull up the antenna base then  
fully extend the antenna and point it  
straight up.  
into the receiver’s DC IN 6V jack.  
3. Push the adapter’s plug into the  
vehicle’s cigarette-lighter socket.  
ADJUSTING THE  
TELESCOPING  
ANTENNA  
For the best reception, adjust the tele-  
scoping antenna for the desired band.  
CONNECTING AN  
EXTERNAL ANTENNA  
FM — Pull up the antenna base about  
halfway then fully extend the antenna  
and rotate it for the best reception.  
To improve SW/MW/LW reception,  
you can connect an optional external  
antenna (such as Cat. No. 20-181) di-  
rectly to the AM EXT ANT jack on the  
left side of the receiver. This automati-  
cally disconnects the receiver’s built-in  
antenna.  
LW and MW (AM) — Rotate the re-  
ceiver. The receiver uses a built-in an-  
tenna for these bands.  
Follow the antenna’s supplied instruc-  
tions to connect it to the receiver.  
9
 
• Once you set the volume, do not  
increase it. Over time, your ears  
adapt to the volume level, so a vol-  
ume level that does not cause dis-  
comfort might still damage your  
hearing.  
CONNECTING  
HEADPHONES  
For private listening and for stereo  
sound during FM stereo broadcasts,  
you can plug optional stereo head-  
1
phones with a /8-inch (3.5 mm) plug  
(available at your local RadioShack  
Traffic Safety  
store) into the  
jack on the left side of  
the receiver. This automatically dis-  
connects the internal speaker.  
Do not use headphones with your re-  
ceiver when operating a motor vehicle  
or riding a bicycle in or near traffic.  
Doing so can create a traffic hazard  
and could be illegal in some areas.  
If you use headphones with your re-  
ceiver, be very careful. Do not listen to  
a continuous broadcast. Even though  
some headphones let you hear some  
outside sounds when listening at nor-  
mal volume levels, they still can  
present a traffic hazard.  
When you connect stereo headphones  
and tune to a stereo broadcast,  
ST  
appears on the display.  
CONNECTING A TAPE  
RECORDER  
Listening Safely  
To protect your hearing, follow these  
guidelines when you use headphones.  
You can connect an optional tape re-  
corder to your receiver’s REC LINE  
OUT jack to record transmissions.  
• Do not listen at extremely high  
volume levels. Extended high-vol-  
ume listening can lead to perma-  
nent hearing loss.  
The recorder must have a line level in-  
put jack.  
• Set the volume to the lowest set-  
ting before you begin listening.  
After you begin listening, adjust  
the volume to a comfortable level.  
Note: If you use a recorder’s MIC IN  
jack to connect to the receiver, the  
sound will be distorted.  
10  
 
To connect a tape recorder, you need  
a mono patch cord (not supplied) with  
a 1/8-inch (3.5 mm) plug on both ends.  
Your local RadioShack store carries a  
wide selection of mono patch cords.  
Connect one end of the cord to the  
REC STANDBY jack, then connect the  
other end to your recorder’s STAND-  
BY IN or REMOTE IN jack. Then see  
“Timer Recording” on Page 33 for  
more information about using the re-  
ceiver’s timers to record.  
Insert the cord’s plug into the REC  
LINE OUT jack on the left side of the  
receiver, then connect the other end  
of the cord to your tape recorder’s  
LINE IN jack.  
USING THE STAND  
Follow the instructions provided with  
your tape recorder to record transmis-  
sions from the receiver.  
You can position the receiver more se-  
curely and possibly improve the sound  
by resting the receiver on its stand.  
Note: When you connect a tape re-  
corder, the receiver’s built-in speaker  
continues to work.  
Lift the latch on the back of the receiver  
to open the stand.  
The REC STANDBY jack on the left side  
of the receiver lets you record a broad-  
cast at a preset time.  
To connect a tape recorder to the re-  
ceiver’s REC STANDBY jack, you need  
a mono patch cord (not supplied) with  
3
a /32-inch (2.3 mm) plug. And, your  
tape recorder must have a STANDBY  
IN or REMOTE IN jack rated at no  
more than 20V, 150mA.  
11  
 
If you are in a country where the AM  
frequency increments are 9 kHz, set  
MW-STEP to 9k.  
USING THE MEMO  
LABEL  
You can use the memo label under the  
receiver’s stand to record helpful infor-  
mation, such as the memory location  
numbers of your favorite stations.  
SETTING THE MW (AM)  
TUNING INCREMENT  
In the United States, the Federal Com-  
munications Commission (FCC) as-  
signs frequencies for stations in the  
MW band in 10-kHz increments. (In the  
United States, we commonly call the  
MW band the AM band.) In Europe and  
some other parts of the world, MW fre-  
quencies are assigned in 9-kHz incre-  
ments.  
MW-STEP on the right side of the re-  
ceiver is preset to 10k for use in the  
United States, Canada, and many  
South American countries. Depending  
on the country you are in, you might  
have to change the frequency step.  
12  
 
UNDERSTANDING YOUR RECEIVER  
Once you understand a few simple terms we use in this manual and familiarize  
yourself with your receiver’s features, you can start using your receiver to listen to  
the world!  
POWER — turns the receiver on and off.  
— turns on the display light for about 12 seconds (if you installed batteries) or  
until you press  
again.  
— displays the time in your area using Daylight Saving Time.  
SET — lets you set the time.  
STEP — sets the tuning range for manual tuning (see “Direct Access Tuning” on  
Page 19).  
ATS/FM — selects the FM band and lets you select FM stations using your receiv-  
er’s automatic tuning system (ATS).  
ATS/LW — selects the LW (longwave) band and lets you select LW stations using  
your receiver’s automatic tuning system.  
13  
 
ATS/MW — selects the MW (medium wave) band and lets you select MW stations  
using your receiver’s automatic tuning system.  
METER/SW — selects the SW (shortwave) 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 band range. The single  
digits are used to enter a channel, frequency, or ID number. The band range  
(120m, for example) indicates the shortwave band you can tune by pressing that  
key.  
— enters a decimal point or clears an incorrect entry.  
C (cancel) — cancels an entry.  
F/FREQ (frequency) — lets you tune a frequency directly.  
M/MEM — stores frequencies into memory.  
ENTER  
— enters a frequency.  
TIMER 1, TIMER 2, TIMER 3 — let you select any of the receiver’s three timers.  
WORLD/HOME — lets you select the time you want to display (world time or your  
home time).  
AM MODE — lets you set up the alarm timer.  
M
— lets you lock out selected frequencies.  
EDIT — lets you assign a name for each FM, MW, or LW station or for each page  
where you stored an SW station.  
PAGE — lets you select either of the receiver’s memory pages (see “Memory Func-  
tions” on Page 27).  
PRIORITY — tunes to the priority station you set.  
TUNING  
/
— tunes up or down the band you selected.  
14  
 
BASIC OPERATION  
Fresh batteries show a power level of  
10. If the indicator shows a power lev-  
el of 3 or below or BATTLOWflashes,  
replace all of the batteries.  
TURNING THE RECEIVER  
ON AND OFF  
Press POWER to turn on the receiver,  
then adjust VOLUME to a comfortable  
listening level.  
Press POWER again to turn off the re-  
ceiver.  
LIGHTING THE DISPLAY  
Press  
to light the display in low-  
light situations.  
The display shows the band, frequen-  
cy, time, and signal strength (with 10  
as the strongest signal).  
Notes:  
• If you use battery power, the light  
automatically turns off after 12  
seconds to save battery power.  
• If you use AC or DC power, the  
light stays on while the receiver is  
on. You must turn off the receiver  
to turn off the light.  
When you press POWER to turn off the  
receiver, the battery power indicator  
appears on the display for several  
seconds.  
LOCKING THE  
CONTROLS  
The lock feature prevents you from ac-  
cidentally turning the receiver on or off,  
changing the band or frequency, or us-  
ing the front panel buttons.  
15  
 
M
Press  
to lock all the front panel  
The clock display shows a random  
time when you install batteries. Follow  
these steps to set the local time in the  
24-hour format (0:00 – 23:59).  
buttons and ROTARY TUNING.  
ap-  
pears.  
1. Repeatedly press WORLD/HOME  
HOME  
until  
flashes.  
2. Rotate MANUAL TUNING until the  
name of your city (or a city in the  
same time zone) appears, then  
press ENTER  
beeps and the city’s name ap-  
pears for 2 seconds then disap-  
. The receiver  
You can still adjust VOLUME, TONE,  
and other controls.  
HOME  
pear on the display.  
pears.  
and the time ap-  
M
To unlock the buttons, press  
again.  
disappears.  
HOME  
3. Press  
SET.  
flashes.  
SETTING AND VIEWING  
THE LOCAL TIME  
Your receiver has two clocks. One dis-  
plays your local time and the other lets  
you display the time in any of 42 preset  
world cities or a world city you specify.  
Once you set your local time, the re-  
ceiver automatically calculates the cor-  
rect time in each of the preset world  
cities or a world city that you specify  
and lets you select and display that  
time.  
HOME  
4. While  
flashes, use the  
number buttons to enter the cor-  
rect time.  
Notes:  
HOME  
• If  
stops flashing before  
you press a number button,  
start again at Step 3.  
The time zone map on the back of the  
receiver shows the difference in hours  
between UTC (Universal Time Coordi-  
nate formerly called Greenwich  
Mean Time) and each time zone. To  
determine your local time from UTC,  
add or subtract the specified number  
from UTC time. During Daylight Saving  
Time, add one more hour.  
• Do not precede single-digit  
hours with a 0. For example,  
enter 930 for 9:30 AM.  
• If you make a mistake, press C  
to erase the last digit, then  
enter the correct digit.  
16  
 
• If you enter an invalid time, the  
clock beeps twice and E(error)  
appears for about 1 second.  
Repeat Steps 3–4 to enter the  
correct time.  
CHANGING A WORLD  
CITY NAME  
You can change the name of any of  
the preprogrammed world cities to a  
name you choose, then save the new  
name in the receiver’s memory.  
5. Press ENTER  
. The time you  
set appears, and the seconds  
start counting from 0.  
1. Repeatedly press WORLD/HOME  
Note: The receiver does not dis-  
play the seconds.  
HOME  
until  
flashes.  
2. Turn MANUAL TUNING to select a  
city in the same time zone as the  
city you want to change.  
VIEWING A WORLD TIME  
3. Press EDIT. The first character of  
the city’s name flashes.  
Important: You need to set your local  
time before following these steps. See  
“Setting and Viewing the Local Time”  
on Page 16.  
4. Turn MANUAL TUNING to select  
the desired character.  
5. When the character you want  
1. Repeatedly press WORLD/HOME  
appears, press TUNING  
to  
until WORLD flashes.  
move to the next position, then  
turn MANUAL TUNING to enter the  
next character (up to 8 charac-  
ters).  
2. Rotate MANUAL TUNING until the  
name of the world city (or a city in  
the same time zone) appears. The  
current time in that city appears  
on the display.  
Note: If you want to correct a  
character you entered, press TUN-  
ING  
to move back to it.  
3. To save the displayed city as your  
world city, press ENTER  
.
6. Press ENTER  
. The receiver  
stops flashing. Then, the  
WORLD  
stores the name of the world city  
you entered.  
world city’s name disappears from  
the display within 2 seconds.  
4. To return to your home time,  
repeatedly press WORLD/HOME  
HOME  
until  
flashes. Your home  
city’s name and the time in that  
city appear.  
HOME  
stops  
5. Press ENTER  
.
flashing.  
17  
 
Manual Tuning  
TUNING STATIONS  
You can select a lower or higher fre-  
Note: “Special Tuning Controls” on  
Page 24 contains more information  
about using your receiver’s controls.  
quency by pressing TUNING  
or  
. The frequency changes in the fol-  
lowing increments.  
Band  
FM  
Tuning Increment  
0.1 MHz  
Selecting a Band  
LW  
9 kHz  
MW  
SW  
9 or 10 kHz  
0.005 MHz  
You can also select a higher or lower  
frequency by turning MANUAL TUN-  
ING.  
Press ATS/FM, ATS/LW, ATS/MW, or  
METER/SW to select the band. (Press  
ATS/MW for AM.)  
To select a smaller band within the SW  
band, press METER/SW again. When m  
flashes on the right side of the display,  
enter the desired band by pressing its  
labeled key on the keypad. For exam-  
ple, to select the 75 meter shortwave  
band, press 3.  
As you turn MANUAL TUNING, you  
might find that you need the frequen-  
cies to change more slowly. To  
change how quickly the frequencies  
change as you rotate the knob, re-  
peatedly press STEP on the front of  
the receiver so the arrow on the right  
side of the display points to FAST or  
SLOW.  
18  
 
If you set STEP to FAST, the tuning in-  
crements are the same as when you  
1. Press F/FREQ. The frequency dis-  
play disappears and FREQ  
flashes for about 30 seconds.  
press TUNING  
or  
. If you select  
SLOW, the tuning increments are  
smaller so you can fine tune the fre-  
quency.  
2. Use the number keys and  
to  
enter the frequency, then press  
ENTER  
.
Notes:  
Band  
FM  
Fast  
0.1 MHz  
9 kHz  
Slow  
0.05 MHz  
1 kHz  
• If you wait more than 30 sec-  
onds to press a button, the pre-  
vious frequency returns to the  
display. Begin again at Step 1.  
LW  
MW  
SW  
9/10 kHz  
5 kHz  
1 kHz  
1 kHz  
• If you make a mistake, press C  
(cancel) to erase the last digit,  
then enter the correct digit.  
AM Mode  
set to USB  
or LSB  
1 kHz  
40 Hz  
Note: You can tune standard AM, up-  
per sideband (USB), and lower side-  
band (LSB) frequencies. For more  
information, see “Tuning SSB Sta-  
tions” on Page 25.  
Scan Tuning  
If you set STEP to STOP, turning MAN-  
UAL TUNING has no effect at all, so  
you cannot accidentally change the  
frequency.  
To automatically tune up or down to  
the next active frequency in the select-  
Note: Setting STEP to STOP locks only  
MANUAL TUNING. For information  
about locking the front panel buttons,  
see “Locking the Controls” on  
Page 15.  
ed band, hold down TUNING  
or  
for about 1 second. The receiver  
scans up or down the selected band  
and tunes to the first frequency it finds  
with a strong signal.  
To scan for an SW (shortwave) fre-  
quency in one of the 14 meter bands,  
press SW, press the number button  
with the meter range you want to scan,  
Direct Access Tuning  
Follow these steps if you know a sta-  
tion’s frequency and want to directly  
tune to that station.  
then press TUNING  
or  
to scan  
the band.  
19  
 
Notes:  
• When scanning, the receiver only  
memory locations. See “Storing  
SW Frequencies in Memory” on  
Page 28 for more information.  
searches for frequencies with  
strong signals. To search for sta-  
tions with weaker signals, use one  
of the manual tuning methods.  
• International commercial broad-  
cast programs (often in English)  
usually contain news, commentar-  
ies, music, and special features  
reflecting the culture of the broad-  
casting country. Reception for this  
range is best between 6:00 PM  
and midnight (your time).  
• When scanning in a lower band,  
the receiver searches only within  
the selected band and stops at the  
upper and lower limits of the band.  
Your receiver shows the short-  
wave bands you can receive on  
the bottom of the display.  
Follow these steps to tune prepro-  
grammed shortwave stations.  
1. Find the country and frequency for  
the shortwave station you want to  
tune in the “DX-398 Shortwave  
Pages Chart” on Page 21. Then  
write down the page number and  
memory location number shown  
on the chart for that station.  
2. Press SW, then press PAGE.  
TUNING  
PREPROGRAMMED  
SHORTWAVE STATIONS  
3. While PAGE is flashing, repeat-  
edly press TUNING  
or TUNING  
or turn MANUAL TUNING until  
the page number you wrote down  
in Step 1 appears next to PAGE.  
The name of the broadcaster’s  
country also appears next to  
PAGE.  
Your receiver is preprogrammed with  
212 of the most popular worldwide  
and U.S. shortwave stations. You can  
quickly tune these popular stations.  
Then, when you reach the desired  
page number, press ENTER  
.
Notes:  
4. Press a number key to enter the  
memory location number you  
wrote down in Step 1. The re-  
ceiver tunes the station.  
You cannot change the preset  
shortwave stations stored in your  
receiver’s memory.  
You can store shortwave frequen-  
cies into the receiver’s empty  
20  
 
Note: If you press a number key for a memory location number where there is no  
station stored, MEMOFREEflashes for a few seconds. Then the receiver tunes the  
station you previously tuned.  
DX-398 SHORTWAVE PAGES CHART  
Note: All frequencies are in MHz.  
Memory Location  
Country  
Page  
(Stations)  
1
2
3
4
5
6
7
8
9
1 AUSTRLIA 5.995 9.580 9.860 11.800 11.880 13.755 15.365 17.795 17.860  
(Radio  
Australia)  
2 AUSTRIA  
(Radio  
6.015 7.325 9.495 9.655 9.870 13.730  
Austria)  
3 CANADA  
Radio  
5.960 6.070 6.155 9.625 9.640 9.755 11.855 13.650 13.670  
Canada  
Intl.)  
4 CHINA  
(China  
7.405 9.560 9.690 9.710 9.730 11.680 11.695 15.130  
Radio Intl.)  
5 CST RICA 5.030 6.150 6.205 7.385 9.725 13.750 15.050 15.460  
(Adventist  
World  
USB  
Radio,  
Radio for  
Peace Intl.)  
6 CUBA  
6.000 6.180 9.505 9.820 9.380 13.715 13.725  
(Radio  
USB  
USB  
Habana)  
7 ECUADOR  
(HCJB  
5.860 9.445 9.745 11.960 12.005 15.115 15.540 21.455  
USB  
Voice  
of Andes)  
8 ENGLAND  
(BBC World  
Service)  
5.965 5.975 6.175 6.195 9.515 9.590 9.600 9.740 9.915  
21  
 
Memory Location  
Country  
Page  
(Stations)  
1
2
3
4
5
6
7
8
9
9 ENGLAND  
(BBC World  
Service)  
11.750 11.835 12.095 15.220 15.400 15.575 17.830 17.840 21.660  
10 FRANCE  
(Radio  
11.615 13.625 15.325 15.530 17.620  
France  
Intl.)  
11 GERMANY  
(Deutsche  
Welle-Voice  
of Ger-  
5.960 6.040 6.085 6.145 6.185 9.515 9.535 9.615 9.640  
many)  
12 HOLLAND  
(Radio  
6.020 6.165 9.700 9.720 9.845 9.890 15.315 17.605  
Netherlands  
Wereldom-  
roep)  
13 ISRAEL  
7.465 9.435 11.605 12.077 15.615 15.640  
(Kol Israel)  
14 JAPAN  
(Radio  
5.960 6.110 6.120 9.535 11.705 11.895 12.000 13.630  
Japan/NHK)  
15 KOREA N  
(Radio  
6.575 9.975 11.335 13.670  
9.650 11.715 13.650 15.575  
Pyongyang)  
16 KOREA S  
(Radio  
Korea  
Intl.)  
17 N ZEALND 6.100 9.570 9.700 9.810 9.875 11.735 11.900 11.905 15.115  
(Radio New  
Zealand)  
18 NORWAY  
(Radio  
5.905 7.440 7.465 7.520 9.560 11.840 13.800 15.340  
Norway  
Intl.)  
19 RUSSIA  
(Voice of  
7.125 7.240 7.250 9.665 11.630 11.675 11.750 12.050 15.400  
Russia)  
22  
 
Memory Location  
Country  
(Station)  
Page  
1
2
3
4
5
6
7
8
9
20 S AFRICA 3.220 5.955 9.530 9.675 11.900 15.240  
(Channel  
Africa)  
21 SWEDEN  
(Radio  
6.065 6.090 7.115 7.290 11.650 13.740 15.240  
Sweden)  
22 SWITZLND 6.135 9.885 9.905 13.635  
(Swiss  
Radio  
Intl.)  
23 TAIWAN  
(Voice of  
Free  
5.950 7.130 7.445 9.680 11.740 15.600 17.750  
China)  
24 U.S.A.  
(Voice of  
5.985 6.035 6.130 7.405 9.455 9.760 11.695 11.715 15.205  
15.410 15.580 17.895 5.825 6.890 7.425 9.455 11.875 13.615  
America)  
25 U.S.A.  
(Voice of  
America,  
WEWN)  
26 U.S.A.  
(WHRI,  
5.745 5.760 6.040 7.315 9.495 13.760 9.955 7.355 7.395  
WRMI,  
WRNO)  
27 U.S.A.  
5.850 6.095 7.510 7.535 9.355 9.430 11.550 13.770 15.665  
3.210 3.215 5.070 7.435 9.475 12.160 15.685 5.085 9.400  
(WSHB)  
28 U.S.A.  
(WWCR,  
WGTG)  
29 (Open)  
23  
 
jack and setting STEREO/ MONO-FM on  
the right side of the receiver to STE-  
REO.  
ADJUSTING THE TONE  
To improve reception for weak FM ste-  
reo stations, set STEREO/MONO-FM to  
MONO-FM. The sound is no longer in  
stereo, but the reception should im-  
prove.  
Set TONE to NEWS to enhance broad-  
cast voices while listening to talk  
shows or news programs on SW, MW,  
and LW frequencies.  
WIDE/NARR.-AM  
Set TONE to MUSIC to enhance treble  
and bass response when listening to a  
music program (especially FM pro-  
grams).  
Set TONE to NORM to help reduce in-  
terference.  
A strong station that broadcasts close  
to a frequency you tuned might inter-  
fere with that frequency. To reduce in-  
terference from adjacent stations in the  
SW, MW, or LW bands, set WIDE/  
NARR.-AM on the right side of the re-  
ceiver to NARR.-AM. Or, if there is no  
interference, set it to WIDE for better  
sound.  
SPECIAL TUNING  
CONTROLS  
STEREO/MONO-FM  
AM RF GAIN  
You can receive FM stereo by con-  
necting stereo headphones to the  
24  
 
AM RF GAIN on the left side of the re-  
ceiver lets you tune a received signal  
for the best SW reception. If the signal  
is weak, turn AM RF GAIN toward +. If  
the sound is distorted, turn AM RF GAIN  
toward –.  
Note: SSB stations sound dis-  
torted when you tune to them in  
the normal SW band. To help you  
find SSB stations, watch for  
deflections on the signal strength  
indicator. Since SSB is transmit-  
ted with a suppressed carrier, the  
signal strength indicator will move  
more quickly when there is a  
transmission and more slowly dur-  
ing pauses in the transmission.  
TUNING SSB STATIONS  
SSB (single sideband) is very popular  
among amateur radio and business ra-  
dio users because of its superior signal  
quality. Many amateurs who operate  
SSB and transmit below 10 MHz gen-  
erally use LSB (lower sideband), while  
amateur and commercial stations who  
transmit above 10 MHz generally use  
USB (upper sideband). Your receiver  
receives both USB and LSB transmis-  
sions.  
3. When you have located an SSB  
station, press AM MODE to receive  
the transmission. Repeatedly  
press AM MODE to switch between  
USB or LSB transmissions (try  
LSB for frequencies below 10  
MHz or USB for frequencies  
above 10 MHz).  
4. Set STEP to SLOW then readjust  
MANUAL TUNING for maximum  
intelligibility.  
Follow these steps to receive SSB  
stations.  
1. Select an SW band (see “Select-  
ing a Band” on Page 18).  
USING RDS  
The receiver displays information  
about FM radio stations that transmit a  
Radio Data System (RDS) signal.  
When the receiver receives an RDS  
station, the station’s call letters appear  
on the display. Also, if the station  
broadcasts CT (clock time) informa-  
tion, the receiver automatically cor-  
rects the displayed time.  
2. If you know the frequency of an  
SSB station, enter that frequency.  
Or, scan the band for SSB stations  
by slowly rotating MANUAL TUN-  
ING, tuning through the selected  
band until you hear an SSB sta-  
tion. Or, scan the band for USB or  
LSB stations by holding down  
TUNING  
or TUNING  
for  
about 2 seconds until you hear an  
USB or LSB station  
25  
 
Follow these steps to use RDS.  
1. Turn on the receiver.  
2. Tune the receiver to an FM station  
that transmits RDS (and CT) infor-  
mation.  
3. Set TIME SET on the right side of  
the receiver to AUTO.  
4. Make sure that your local time (as  
described in “Setting and Viewing  
the Local Time” on Page 16) has  
been set correctly. (The receiver  
compares the CT information with  
your local time to display the cor-  
rect time at the broadcaster’s loca-  
tion).  
5. If your time zone is using Daylight  
Saving Time, repeatedly press  
until  
appears.  
26  
 
MEMORY FUNCTIONS  
Besides tuning to the preprogrammed  
shortwave stations (see “Tuning Pre-  
programmed Shortwave Stations” on  
Page 20), you can store and then  
quickly tune up to 94 frequencies in  
your receiver’s memory locations. The  
memory locations are grouped into  
pages (nine memory locations per  
page).  
stations (from strongest to weakest) in  
the FM, LW, and MW memory loca-  
tions until all the memory locations are  
occupied. This feature helps you find  
local stations in another city by simply  
pressing a memory location button.  
Note: You cannot use this feature to  
store SW stations.  
To use ATS, hold down ATS/FM, ATS/  
LW, or ATS/MW for about 3 seconds.  
The receiver beeps and the selected  
band and ATSflash. Then the receiv-  
er automatically scans and stores the  
strongest frequency into the first avail-  
able memory location. It continues to  
scan and store frequencies until it fills  
the nine memory locations in that  
page.  
You can store up to 18 FM frequen-  
cies (2 pages), 18 MW frequencies (2  
pages), and 9 LW frequencies (1  
page) into your receiver’s FM/MW/LW  
memory locations. You can store fre-  
quencies automatically (see “Automat-  
ic Storage”) or manually (see “Manual  
Storage”).  
Additionally, you can store frequencies  
into any empty memory location in the  
receiver’s SW memory pages (see  
“Storing SW Frequencies in Memory”  
on Page 28). There are 40 empty lo-  
cations scattered throughout the pag-  
es, and all 9 locations in Page 29 are  
blank. See “DX-398 Shortwave Pages  
Chart” on Page 21.  
The first stored station appears. Once  
the receiver has stored nine stations  
in Page 1, press PAGE to select the  
next page. Then hold down ATS/FM or  
ATS/MW again to store the other avail-  
able frequencies. The receiver beeps  
when it finishes automatically tuning  
stations.  
STORING FM, MW, OR  
LW FREQUENCIES IN  
MEMORY  
Manual Storage  
1. Press ATS/FM, ATS/MW, or ATS/LW  
to select the band where you want  
to store a frequency.  
2. Tune to the frequency you want to  
store.  
Automatic Storage  
You can set your receiver’s automatic  
tuning system (ATS) so it automatically  
stores all available FM, LW, and MW  
27  
 
3. Repeatedly press PAGE to select  
the page where you want to store  
the frequency. 1 or 2 appears  
under PAGE.  
ING  
or  
to select a new  
frequency, press M/MEM, then  
press the number key for the  
memory location. After a few sec-  
onds, the receiver beeps and  
stores the new frequency in the  
memory location.  
Notes:  
PAGE flashes only when the  
receiver is set to SW mode.  
5. Press ENTER  
to store the fre-  
• If you wait more than 10 sec-  
onds to press PAGE, PAGE  
stops flashing.  
quency in the flashing memory  
location. The receiver beeps and  
a bracket appears around the  
memory location number where  
you stored the frequency, to show  
that the frequency was stored  
there.  
• If you pressed ATS/LW in Step  
1, PAGE does not appear be-  
cause there is only one LW  
page.  
4. Press M/MEM. MEMO flashes for  
about 12 seconds. The number for  
the first available empty memory  
location for the selected page  
flashes next to MEMO.  
STORING SW  
FREQUENCIES IN  
MEMORY  
Follow these steps to store shortwave  
frequencies into empty memory loca-  
tions in the shortwave page.  
1. Press METER/SW to select the  
shortwave band.  
2. Tune to the frequency you want to  
store. The currently selected page  
number appears under PAGE.  
Note: If an empty memory loca-  
tion number does not flash, all  
memory locations are full in the  
band you selected. If this hap-  
pens, clear a memory location  
3. Press M/MEM. PAGE and MEMO  
flash for about 10 seconds.  
(see “Deleting  
a
Station You  
Stored” on Page 30) then store  
the frequency. Or, to replace a  
stored frequency with a new fre-  
quency, repeatedly press TUN-  
28  
 
4. While PAGE and MEMO flash,  
repeatedly press TUNING or  
location for about 2 seconds.  
The receiver beeps and stores  
the new frequency in the mem-  
ory location.  
to select the page where you  
want to store the frequency.  
The page’s number appears  
under PAGEand the name of the  
page’s country appears as you  
ASSIGNING A NAME TO  
AN FM/MW/LW STATION  
OR SW PAGE  
press TUNING  
or  
. For  
each page, the number of the first  
available empty memory location  
in that page flashes next to MEMO.  
To help you easily identify stored fre-  
quencies, you can assign a name (up  
to 8 characters) to an FM, MW, or LW  
memory location, or to an SW page.  
1. Select a band (see “Selecting a  
Band” on Page 18).  
Note: If you wait more than 10  
seconds to press TUNING  
or  
2. Repeatedly press PAGE to select  
the page number where you  
stored the desired frequency.  
, PAGEand MEMOstop flash-  
ing. If this happens, start again at  
Step 3.  
3. For an FM, MW, or LW station,  
use the number keys to enter the  
desired memory location number.  
5. Press ENTER  
to assign the  
frequency to the flashing memory  
location. The receiver beeps and  
a bracket appears around the  
number where you stored the fre-  
quency.  
4. Press EDIT. A cursor flashes  
under the displayed frequency for  
about 30 seconds.  
5. While the cursor flashes, turn  
MANUAL TUNING until you see the  
first character you want to use.  
Notes:  
• If the receiver’s memory is full,  
MEMOFULL appears when you  
press a number key.  
To replace a frequency you  
stored with a new frequency,  
repeatedly press TUNING  
or TUNING  
to select a new  
frequency, press M/MEM, then  
hold down the number key cor-  
responding to that memory  
29  
 
Note: If you wait more than 20  
seconds to turn MANUAL TUNING,  
the cursor stops flashing. If this  
happens, start again at Step 4.  
LOCKING/UNLOCKING A  
STORED STATION  
After storing your favorite stations, you  
can lock any of them in memory. This  
helps you avoid overwriting the station  
if you accidentally use the receiver’s  
ATS automatic store feature.  
6. When the character you want  
appears, press TUNING  
to  
move to the next position, then  
rotate MANUAL TUNING to select  
the next character.  
To lock or unlock a station, recall the  
station, press M/MEM then press  
Note: If you want to correct a  
character you entered, press TUN-  
M
.
appears (locked) or dis-  
ING  
7. When you have finished entering  
the name, press ENTER  
to move back to it.  
appears (unlocked).  
.
MOVING A FREQUENCY  
TO ANOTHER MEMORY  
LOCATION  
DELETING A STATION  
YOU STORED  
Note: These steps show you how to  
move a frequency to another memory  
location on the same page. To move  
the frequency to another memory lo-  
cation on a different page, follow the  
steps in “Storing FM, MW, or LW Fre-  
quencies in Memory” on Page 27 or  
“Storing SW Frequencies in Memory”  
on Page 28.  
1. Select a band (see “Selecting a  
Band” on Page 18).  
2. Press ENTER  
.
3. Repeatedly press PAGE until the  
page with the desired frequency  
appears.  
4. Use the number keys to enter the  
memory location number.  
1. Select a band (see “Selecting a  
Band” on Page 18).  
5. Press M/MEM.  
2. Recall the memory location num-  
ber of the frequency you want to  
move.  
6. Press C (cancel).  
3. Press M/MEM. MEMO and the  
memory location where the sta-  
tion is programmed flash.  
30  
 
4. Use the number keys to enter the  
new memory location number.  
The receiver beeps.  
3. Press PRIORITY to store the page  
with the desired station in the pri-  
ority location.  
Note: If you previously stored a  
priority station, pressing PRIORITY  
replaces it.  
USING PRIORITY  
You can store one MW/LW/FM station  
as the priority station, then quickly re-  
call it.  
4. To tune to the priority station,  
press PRIORITY. The receiver  
tunes to the page you selected  
then to the strongest frequency  
among the 9 preset stations.  
1. Tune to your favorite station.  
2. Press M/MEM.  
Note: If there is a stronger station  
on the page you selected, the  
receiver might tune to it instead of  
the station you selected.  
3. Press PRIORITY to store the sta-  
tion in the priority location.  
Note: If you previously stored a  
priority station, pressing PRIORITY  
replaces it.  
5. Press the memory location num-  
ber you selected in Step 1 under  
Tuning Preprogrammed Short-  
wave Stations” on Page 20 to tune  
to the priority station.  
4. To tune to the priority station,  
press PRIORITY. The receiver  
tunes to the priority station.  
The receiver stores a SW priority sta-  
tion differently than an MW/LW/FM  
station. It stores a page containing 9  
stations (including the SW station you  
want to store as the priority station) in  
a memory location.  
1. Use the steps under “Tuning Pre-  
programmed Shortwave Stations”  
on Page 20 to tune to the page  
where you stored your favorite  
shortwave station.  
2. Press M/MEM to store the page  
containing the desired station.  
31  
 
TIMER FUNCTIONS  
Silencing the Alarm  
USING THE TIMER  
ALARMS  
When the display shows the alarm  
time, the radio turns on or the buzzer  
Your receiver has three timer alarms.  
You can set these alarms to sound  
(buzzer or radio) at a time you set.  
sounds and  
, 1, 2, or 3, and  
TIMER  
or  
flash on the display.  
If you selected the buzzer, its volume  
increases after several seconds. After  
a few more seconds, the buzzer’s vol-  
ume increases again. Then, after 60  
seconds, the buzzer turns itself off  
and sounds again the next day at the  
set time.  
Setting an Alarm  
1. If you want the radio to turn on at  
the alarm time, tune to the desired  
station. Then press M/MEM. MEMO  
and the memory location where  
the station is programmed flash  
for about 10 seconds.  
If you selected the radio, it automati-  
cally turns off after 60 minutes. To si-  
lence the radio or the buzzer sooner,  
press POWER to turn off the receiver.  
2. Press TIMER 1, TIMER 2, or TIMER  
3 twice.  
number, and  
, the selected timer  
(buzzer) flash for  
TIMER  
, 1, 2, or 3, and  
or  
dis-  
TIMER  
about 10 seconds.  
appear and the alarm sounds again  
the next day at the set time.  
Note: If MEMO stops flashing  
before you press TIMER 1, TIMER  
2, or TIMER 3, start again from  
Step 2.  
Using the Snooze Feature  
To silence the buzzer or radio alarm for  
about 5 minutes, press any button ex-  
3. To select the type of alarm (buzzer  
or radio), repeatedly press AM  
Z
Z
M
Z
cept POWER,  
, or  
.
MODE until  
for the buzzer or  
flashes above  
. This temporarily  
for the radio flashes next to  
silences the buzzer or radio and then it  
sounds again. You can repeat this for  
up to 30 minutes using the buzzer  
alarm or up to 60 minutes using the ra-  
dio alarm.  
.
TIMER  
Note: If  
or  
, stops flashing  
before you press AM MODE, start  
again from Step 2.  
4. Use the number keys to enter the  
time you want the alarm to sound.  
Note: The snooze feature does not  
work if a plug is connected to the REC  
LINE OUT jack.  
5. Press ENTER  
.
6. Turn the receiver off.  
32  
 
Turning a Timer Alarm  
On or Off  
USING THE SLEEP  
TIMER  
To turn off the alarm so it does not  
sound again, press TIMER 1, TIMER 2,  
The sleep timer lets you set the re-  
ceiver to turn off in an amount of time  
you set.  
or TIMER 3. Then press C while  
TIMER  
flashes.  
1. With the receiver off, hold down  
POWER until the receiver beeps  
and turns on. 90 appears and  
flashes.  
If you want to turn on a timer alarm  
again, press TIMER 1, TIMER 2, or TIM-  
ER 3. Then press ENTER  
and 1, 2, or 3flash.  
while  
TIMER  
After a few seconds, 90 disap-  
Timer Recording  
pears and  
stops flashing.  
You can connect a tape recorder to  
the receiver and have it record starting  
at a preset time.  
2. Tune to the desired station.  
After the preset number of minutes, the  
receiver turns off. To turn off the re-  
ceiver sooner, press POWER.  
Connect your tape recorder as de-  
scribed in “Connecting a Tape Re-  
corder” on Page 10 and set your tape  
recorder to record. Then follow the  
steps in “Using the Timer Alarms” on  
Page 32 to have the radio start to play  
at the time you want.  
To change the playing time after you  
set it, hold down POWER. The sleep  
timer changes from 90 80 70 →  
60 50 40 30 20 10 90  
minutes, repeating the sequence as  
you hold down POWER. Release POW-  
ER when the desired amount of time  
appears.  
When the radio plays at the time you  
set, the tape recorder starts and  
records the broadcast.  
33  
 
LISTENING HINTS  
Shortwave listening is a hobby with  
thousands of participants worldwide. It  
requires no special knowledge or  
skills, but your enjoyment increases as  
you gain experience and develop spe-  
cial listening techniques.  
using the frequency’s wavelength. For  
example, the 19-meter band refers to  
the range of frequencies with waves  
about 19 meters long.  
Use the following equations to convert  
kHz, MHz, and meters.  
The information in this section can help  
you make the most of your DX-398.  
To convert MHz to kHz, multiply by  
1,000. For example:  
9.62 MHz × 1000 = 9,620 kHz  
REFERENCE SOURCES  
To convert kHz to MHz, divide by  
1,000. For example:  
Many books and magazines about  
shortwave listening are available  
through your local library or news-  
stand. Consult sources such as the  
World Radio Handbook, Radio Ama-  
teur’s Handbook, Passport to World  
Band Radio, Monitoring Times, and  
Popular Communications. These pub-  
lications can help you learn about the  
conditions that make long-distance re-  
ception possible and provide up-to-  
date listings for shortwave broadcasts  
in English and in other languages.  
2780 kHz ÷ 1000 = 2.780 MHz  
To convert MHz to meters, divide 300  
by the number of MHz. For example:  
300 ÷ 7.1 MHz = 42.25 meters  
To convert meters to MHz, divide 300  
by the number of meters. For exam-  
ple:  
300 ÷ 42.25 meters = 7.1 MHz  
BAND ALLOCATION  
FREQUENCY  
CONVERSION  
Certain bands are set aside for specific  
purposes.  
A band is a group of frequencies.  
Sometimes, bands are grouped ac-  
cording to their wavelengths, in  
meters. The tuning location of a station  
can be expressed as a frequency (kHz  
or MHz) or a wavelength (meters).  
Amateur Radio Frequencies  
Tuning to the amateur radio frequen-  
cies can be interesting and helpful, be-  
cause amateur radio operators often  
broadcast emergency information  
when other means of communication  
break down.  
Amateur radio operators generally re-  
fer to the frequencies they operate on  
34  
 
Amateur radio operators use the fol-  
lowing bands. Portions of these bands  
are set aside for continuous wave  
(CW) Morse code communication or  
for single sideband (SSB) voice com-  
munication, as shown below.  
International Frequencies  
International commercial broadcasts  
are found in the following shortwave  
bands. Programs (often in English)  
usually contain news, commentaries,  
music, and special features reflecting  
the culture of the broadcasting country.  
Reception for this range is best be-  
tween 6:00 PM and midnight (your  
time).  
160 meters:  
1,800–2,000 kHz: SSB  
80 meters:  
3,500–3,800 kHz: CW  
3,800–4,000 kHz: SSB  
Frequency  
Band  
Range  
(in meters)  
(in MHz)  
40 meters:  
120  
*
2.300–2.495  
3.200–3.400  
7,000–7,150 kHz: CW  
7,150–7,300 kHz: SSB  
90  
75  
*
*
3.900–4.000  
20 meters:  
* 60  
49  
4.750–5.060  
14,000–14,200 kHz: CW  
14,200–14,350 kHz: SSB  
5.900–6.200  
**41  
31  
7.100–7.350  
15 meters:  
9.400–9.990  
21,000–21,250 kHz: CW  
21,250–21,450 kHz: SSB  
25  
11.600–12.100  
13.500–13.870  
15.100–15.800  
17.480–17.900  
21.450–21.750  
25.600–26.100  
21  
10 meters:  
19  
16  
28,000–28,500 kHz: CW  
28,500–29,700 kHz: SSB  
13  
11  
Note: These ranges are not precisely  
observed everywhere in the world.  
* These bands are reserved for sta-  
tions in tropical areas.  
** Interference is heavy in the 41m  
band (7.100–7.300 MHz) because am-  
ateur radio operators and international  
stations share this range.  
35  
 
Aircraft Frequencies  
Time Standard Frequencies  
Aircraft on international routes some-  
times use SW. Most transmissions are  
in SSB, although you can still hear  
some MW transmissions. Here are  
some bands where you might hear air-  
craft communications.  
The following frequencies announce  
the exact time of day at specified inter-  
vals.  
WWV in Fort Collins, Colorado:  
2,500 kHz  
5,000 kHz  
10,000 kHz  
15,000 kHz  
20,000 kHz  
4,650–4,750 kHz  
6,545–6,765 kHz  
8,815–9,040 kHz  
11,175–11,400 kHz  
13,200–13,360 kHz  
15,010–15,100 kHz  
17,900–18,030 kHz  
CHU in Canada: 7,335 kHz  
VNG in Australia:  
4,500 and 12,000 kHz  
Ships and Coastal Station  
Frequencies  
Longwave Band  
The 150–519 kHz range is known as  
the longwave band. Most stations in  
this range serve as beacons for aircraft  
and marine navigation by continuously  
transmitting their call letters. Recep-  
tion for this range is best between 6:00  
PM and midnight (your time).  
Most transmissions from ships and  
coastal stations are in SSB and CW.  
You can hear these transmissions in  
the following bands.  
2,000–2,300 kHz*  
4,063–4,139 kHz  
4,361–4,438 kHz  
8,195–8,181 kHz  
12,330–12,420 kHz  
13,107–13,200 kHz  
16,460–16,565 kHz  
Some ships also use this range, with  
500 kHz set aside as an international  
distress and emergency station.  
Most stations in this range use CW  
(Morse code), although some use AM  
voice transmission for weather broad-  
casts.  
* The Coast Guard and small boats  
use this band, with 2,182 kHz set aside  
as the international distress and emer-  
gency channel.  
36  
 
LISTENING GUIDE  
The following list contains some of the more frequently heard stations. All stations  
broadcast in English unless otherwise specified. You can hear these stations  
throughout North America. However, reception varies based on the season, time of  
day, and a number of other conditions.  
This information can change at any time. For sources of yearly, up-to-date listings,  
see “Reference Sources” on Page 34.  
kHz  
Station  
Location  
Remarks  
3,223  
3,265  
3,300  
Radio SR  
Swaziland  
Radio Mozambique  
Radio Cultural  
Maputo, Mozambique  
Guatemala City,  
Guatemala  
Religious Programs  
3,380  
3,385  
Radio Iris  
FR3  
Esmeraldas, Ecuador  
Programs in Spanish  
Programs in French  
Cayenne,  
French Guiana  
3,396  
4,750  
4,755  
4,777  
4,795  
Radio Kaduna  
Kaduna, Nigeria  
Bertoua, Cameroon  
Imo, Nigeria  
Radio Bertoua  
Imo Regional Radio  
Radio/TV Gabon  
Libreville, Gabon  
La Paz, Bolivia  
Programs in French  
Programs in Spanish  
Radio Nueva  
America  
4,820  
4,832  
4,855  
Radio Paz y Bien  
Radio Reloj  
Ambala, Ecuador  
San Jose, Costa Rica  
Belem, Brazil  
Programs in Spanish  
Programs in Spanish  
Radio Clube do  
Para  
Programs in  
Portugese  
4,890  
National  
Papua New Guinea  
Broadcasting  
Commission  
4,915  
4,920  
Voice Kenya  
Nairobi, Kenya  
Australian  
Brisbane, Australia  
Broadcasting  
Commission  
4,945  
4,965  
4,980  
Radio Colosal  
Radio Santa Fe  
Ecos del Torbes  
Neiva, Colombia  
Bogota, Colombia  
Programs in Spanish  
Programs in Spanish  
Programs in Spanish  
San Cristobal,  
Venezuela  
5,020  
5,057  
Solomon Islands  
Broadcasting  
Service  
Honiara, Solomon Islands  
Radio Gjirokaster  
Gjirokaster, Albania  
Programs in Albanian  
37  
 
kHz  
Station  
Location  
Remarks  
5,950  
Guyana  
Georgetown, Guyana  
Broadcasting  
Service  
5,954  
5,960  
5,980  
Radio Casino  
Puerto Limon,  
Costa Rica  
Radio Canada  
International  
Montreal, Canada  
Radio RSA  
Johannesburg, South  
Africa  
6,005  
6,025  
CFCX  
Montreal, Canada  
Radio Malaysia  
Kuala Lumpur,  
Malaysia  
Programs in Chinese  
Programs in Japanese  
6,045  
6,055  
Radio Australia  
Lyndhurst, Australia  
Tokyo, Japan  
Nihon Shortwave  
Broadcasting  
Company  
6,060  
Radio Nacional  
Buenos Aires,  
Argentina  
Programs in Spanish  
Programs in Spanish  
6,075  
6,090  
Radio Sutatenza  
Bogota, Colombia  
Radio  
Luxembourg  
Ville Louvigny,  
Luxembourg  
6,095  
6,105  
Polskie Radio  
Warsaw, Poland  
Radio New Zealand  
Wellington, New  
Zealand  
7,140  
7,170  
Trans World  
Radio  
Monte Carlo, Monaco  
Radio Noumea  
Noumea, New  
Caledonia  
Programs in French  
7,300  
9,475  
9,515  
9,525  
9,530  
Radio Tirana  
Radio Cairo  
Tirana, Albania  
Cairo, Egypt  
Voice of Greece  
Radio Korea  
Athens, Greece  
Seoul, South Korea  
Madrid, Spain  
Spanish Foreign  
Radio  
9,535  
9,540  
Swiss Radio  
International  
Berne, Switzerland  
Radio Prague  
Prague,  
Czech Republic  
9,570  
9,575  
Radio Bucharest  
Bucharest, Romania  
Rome, Italy  
Italian Radio and  
Television Service  
38  
 
kHz  
Station  
Location  
Remarks  
9,610  
9,620  
Radio-TV Algeria  
Algiers, Algeria  
Programs in Arabic  
Radio Berlin  
International  
Berlin, Germany  
9,645  
Radio Norway  
Radio Iran  
Oslo, Norway  
9,720  
Tehran, Iran  
Programs in Farsi  
9,745  
HCJB  
Quito, Ecuador  
Vienna, Austria  
Kiev, Ukraine  
9,770  
Austrian Radio  
Radio Kiev  
9,800  
9,835  
Radio Budapest  
Voice of Vietnam  
Israel Radio  
Radio Kuwait  
Radio Sweden  
Radio Moscow  
Radio Sofia  
Budapest, Hungary  
Hanoi, Vietnam  
Jerusalem, Israel  
Kuwait City, Kuwait  
Stockholm, Sweden  
Moscow, Russia  
Sofia, Bulgaria  
Taipei, Taiwan  
10,040  
11,655  
11,690  
11,705  
11,720  
11,735  
11,745  
Voice of Free  
China  
11,815  
11,825  
11,835  
11,845  
Radio Japan  
Radio Tahiti  
4VEH  
Tokyo, Japan  
Papeete, Tahiti  
Cap Haitien, Haiti  
Montreal, Canada  
Programs in Tahitian  
Radio Canada  
International  
11,850  
11,890  
11,900  
Deutsche Welle  
Voice of Chile  
Radio RSA  
Cologne, Germany  
Santiago, Chile  
Johannesburg, South  
Africa  
11,910  
11,930  
BBC  
London, England  
Havana, Cuba  
Radio Havana  
Cuba  
11,935  
11,945  
11,955  
11,980  
15,038  
Radio Portugal  
Radio Beijing  
Voice of Turkey  
Radio Moscow  
Lisbon, Portugal  
Beijing, China  
Ankara, Turkey  
Moscow, Russia  
Riyadh, Saudi Arabia  
Saudi Arabian  
Broadcasting  
Service  
Programs in Arabic  
39  
 
kHz  
Station  
Location  
Remarks  
15,084  
15,135  
15,165  
15,190  
15,205  
15,260  
15,265  
15,275  
15,305  
Voice of Iran  
Tehran, Iran  
Programs in Farsi  
Radio Moscow  
HCJB  
Moscow, Russia  
Quito, Ecuador  
ORU  
Brussels, Belgium  
New Delhi, India  
London, England  
Helsinki, Finland  
Stockholm, Sweden  
Berne, Switzerland  
All India Radio  
BBC  
Finnish Radio  
Radio Sweden  
Swiss Radio  
International  
15,310  
15,320  
15,400  
15,430  
Radio Japan  
Radio Australia  
BBC  
Tokyo, Japan  
Melbourne, Australia  
London, England  
Mexico City, Mexico  
Radio Mexico  
Programs in  
Spanish  
15,465  
17,720  
Radio Pakistan  
Islamabad, Pakistan  
Paris, France  
Programs in Urdu  
Radio France  
International  
17,825  
17,860  
21,495  
21,525  
21,625  
21,645  
Vatican Radio  
Austrian Radio  
Israel Radio  
Vatican City  
Vienna, Austria  
Jerusalem, Israel  
Melbourne, Australia  
Jerusalem, Israel  
Paris, France  
Radio Australia  
Israel Radio  
Radio France  
International  
21,735  
25,790  
Radio-TV Morocco  
Radio RSA  
Rabat, Morocco  
Programs in Arabic  
Johannesburg, South  
Africa  
40  
 
BIRDIES  
Birdies are the products of internally generated signals that make some frequencies  
difficult or impossible to receive. If you program a birdie frequency, you hear only  
noise on that frequency. The most common birdies to watch for on this receiver are:  
450 kHz  
3,844 kHz  
9,000 kHz  
10,250 kHz  
21,868 kHz  
18,000 kHz  
20,490 kHz  
21,835 kHz  
Notes:  
• See “Storing SW Frequencies in Memory” on Page 28 for more information  
about using the shortwave page 29.  
• Interference from devices such as dimmer switches and motors and atmo-  
spheric conditions can disrupt shortwave listening. You can minimize interfer-  
ence by moving the receiver away from the source of noise, or turning off the  
offending device. Shortwave stations sometimes change their operating fre-  
quency to avoid interfering with other stations, to improve reception during dif-  
ferent seasons, or to take advantage of signal propagation changes due to sun  
spots. For this reason, a given station might not be found on the frequency  
listed in memory. Reception of these stations can also be affected by rapid  
changes in the ionosphere. Sometimes the station you are listening to might  
fade out completely. These occurrences are normal shortwave listening condi-  
tions.  
AMATEUR SHORTWAVE BANDS IN THE US  
Amateur radio operators in the U.S.A. are found in the bands listed here. They op-  
erate mostly in LSB (Lower Side Band) mode. Morse code operators are generally  
found in the lower areas of each band. The amateur radio operators with the most  
advanced classification are found in the upper areas of each band.  
41  
 
Amateur Shortwave Bands (in MHz)  
3.500 4.000 MHZ  
80 Meters  
7.000 7.300 MHz  
14.0 14.350 MHz  
21.000 21.450 MHz  
28.000 29.700 MHz  
40 Meters  
20 Meters  
15 Meters  
10 Meters  
10.100 10.150 MHz 30 Meters  
18.068 18.168 MHz 17 Meters  
24.890 24.990 MHz 12 Meters  
42  
 
TROUBLESHOOTING  
We do not expect you to have any problems with your receiver, but if you have a  
problem, the information in this chart might help. If the problem persists, take the  
receiver to your local RadioShack store for assistance.  
SYMPTOM  
POSSIBLE CAUSE  
SUGGESTION  
Weak or intermittent  
sound.  
The internal batteries  
are weak.  
Check the batteries and  
replace or recharge  
them as necessary.  
The antenna must be  
adjusted.  
Adjust the telescoping  
antenna or connect an  
external antenna.  
The signal is blocked by  
metal or concrete.  
Move the receiver near a  
window when you use it  
inside a vehicle or metal-  
frame building.  
The frequency is not  
tuned properly.  
Fine-tune the frequen-  
cy. See “Tuning Sta-  
tions” on Page 18.  
Scanning stops on a fre- The frequency is not  
Fine-tune the frequen-  
cy. See “Tuning Sta-  
tions” on Page 18.  
quency that has an un-  
clear transmission.  
tuned properly.  
The frequency is one of  
the receiver’s birdie fre-  
quencies.  
Tune another frequency.  
Frequency does not  
change when you turn  
ROTARY TUNING.  
FAST/SLOW/STOP is set  
to STOP.  
Set FAST/SLOW/STOP to  
FAST or SLOW.  
M
ROTARY TUNING and  
front panel buttons do  
not respond.  
The keypad is locked  
Press  
.
(
appears on the  
display).  
43  
 
CARE AND MAINTENANCE  
Your RadioShack DX-398 All-Band Shortwave Receiver with Radio Data  
System is an example of superior design and craftsmanship. 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 dry immediately. Liq-  
uids might contain minerals that can corrode the electronic cir-  
cuits.  
Use and store the receiver only in normal temperature environ-  
ments. Temperature extremes can shorten the life of electronic  
devices, damage batteries, and distort or melt plastic parts.  
Keep the receiver away from dust and dirt, which can cause pre-  
mature wear of parts.  
Handle the receiver gently and carefully. Dropping it can damage  
circuit boards and cases and can cause the receiver to work im-  
properly.  
Use only fresh batteries of the required size and recommended  
type. Batteries can leak chemicals that damage your receiver’s  
electronic parts.  
Wipe the receiver with a damp cloth occasionally to keep it looking  
new. Do not use harsh chemicals, cleaning solvents, or strong de-  
tergents to clean the receiver.  
Modifying or tampering with the receiver’s internal components can cause a  
malfunction and might invalidate its warranty and void your FCC authoriza-  
tion to operate it. If your receiver is not performing as it should, take it to your  
local RadioShack store for assistance.  
44  
 
RESETTING THE  
DISPLAY  
If the display shows random charac-  
ters or does not work properly, you  
might need to reset it.  
Important: This procedure clears the  
set time and resets the receiver’s mi-  
croprocessor (the component that  
controls how the receiver operates),  
but all stations remain stored. Reset  
the receiver only when you are sure it  
is not working properly.  
To reset the display, insert a pointed  
object, such as a straightened paper  
clip, into the RESET hole on the bot-  
tom of the receiver. Then gently press  
and release the button inside the hole.  
45  
 
SPECIFICATIONS  
Circuit:  
FM ..................................................................................................... Heterodyne  
LW/MW/SW ........................................................... Dual-Conversion Heterodyne  
Frequency Range:  
FM ................................................................................................... 88–108 MHz  
LW .................................................................................................. 153–519 kHz  
MW .............................................................................................. 520–1,710 kHz  
SW ......................................................................................... 1.711–29.999 MHz  
SW Sub-Bands:  
2.300 – 2.495 MHz (120 meters)  
3.200 – 3.400 MHz (90 meters)  
3.900 – 4.000 MHz (75 meters)  
4.750 – 5.060 MHz (60 meters)  
5.900 – 6.200 MHz (49 meters)  
7.100 – 7.350 MHz (41 meters)  
9.400 – 9.990 MHz (31 meters)  
11.600 – 12.100 MHz (25 meters)  
13.500 – 13.870 MHz (21 meters)  
15.100 – 15.800 MHz (19 meters)  
17.480 – 17.900 MHz (16 meters)  
18.900 – 19.020 MHz (15 meters)  
21.450 – 21.750 MHz (13 meters)  
25.600 – 26.100 MHz (11 meters)  
Antenna:  
LW/MW .................................................................................................... Built-In  
SW ................................................................... Telescoping or Optional External  
FM .................................................................................................... Telescoping  
Output ............................................................................... 300 mW @ 10% THD  
Jacks:  
External Power .................................................................................... DC IN 6V  
Stereo Headphones ................................................................................ 1/8-Inch  
AM External Antenna .......................................................................... DC IN 6V  
3
Record Standby ........................................................................... /32-Inch Mono  
Record Line Out ............................................................................ 1/8-Inch Mono  
Power Sources:  
Primary ......................................................................................... 4 AA Batteries  
AC (Requires Optional Adapter) ....................... 6V/300mA, Center Tip Negative  
DC (Requires Optional Adapter) ...................... 6V/300mA, Center Tip Negative  
Battery Life (with Alkaline Batteries) ........................................ 13 Hours @ 50 mW  
Dimensions (HWD) ............................. 51/8 × 83/4 × 11/4 Inches (130 × 223 × 33 mm)  
Weight (without batteries) ............................................................... 24.7 oz (700 g)  
Included Accessory ......................................................................... Carrying Pouch  
Specifications are typical; individual units might vary. Specifications are subject to  
change and improvement without notice.  
46  
 
NOTES  
47  
 
Limited Ninety-Day Warranty  
This product is warranted by RadioShack against manufacturing defects in material and workman-  
ship under normal use for ninety (90) days from the date of purchase from RadioShack company-  
owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED  
HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES,  
INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,  
ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES  
CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABIL-  
ITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-  
SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE  
OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WAR-  
RANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE-  
NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,  
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN AD-  
VISED OF THE POSSIBILITY OF SUCH DAMAGES.  
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of in-  
cidental or consequential damages, so the above limitations or exclusions may not apply to you.  
In the event of a product defect during the warranty period, take the product and the RadioShack  
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-  
less otherwise provided by law: (a) correct the defect by product repair without charge for parts and  
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase  
price. All replaced parts and products, and products on which a refund is made, become the prop-  
erty of RadioShack. New or reconditioned parts and products may be used in the performance of  
warranty service. Repaired or replaced parts and products are warranted for the remainder of the  
original warranty period. You will be charged for repair or replacement of the product made after the  
expiration of the warranty period.  
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,  
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or  
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs  
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as  
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs  
of product removal, installation, set-up service adjustment or reinstallation.  
This warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102  
We Service What We Sell  
04/99  
RadioShack  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
3818626A  
08A00  
Printed in Taiwan  
 

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