DX-398 All-Band Shortwave Receiver
(200-0228) Preparation Faxback Doc. # 45677

Connecting To Power

You can power the receiver from internal batteries, standard AC power, or
your vehicle's battery.

Installing Internal Batteries

You can use four AA batteries (not supplied) to power the receiver. For
the best performance and longest life, we recommend alkaline batteries such as RadioShack Cat. No. 23-552.

CAUTIONS: 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).

Follow these steps to install the batteries.

1. Remove the battery compartment's cover by sliding the cover in the
direction of the arrow on the cover's tab.

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.

3. Replace the cover.

CAUTIONS: If you will not be using the receiver with battery power for
several months, remove the batteries.

Dispose of old batteries promptly and properly.

Using Standard AC Power

To power the receiver from standard AC power, you need an optional AC
adapter, such as Cat. No. 273-1662.

Note: Connecting an AC adapter disconnects internal batteries.

CAUTIONS: The AC adapter must be capable of delivering 6 volts, its center
tip must be set to negative, it must deliver at least 300
milliamps, and its plug must properly fit the receiver's DC IN
6V jack. The recommended adapter meets these specifications.
Using an adapter that does not meet these specifications could
damage the receiver or the adapter.

When you finish using the AC adapter, unplug it from the AC
outlet first, then disconnect it from the receiver.

Follow these steps to use AC power.

1. Set the adapter's voltage switch to 6V.

2. Line up the 5.5 mm outer diameter/2.1 mm inner diameter barrel plug
with the adapter's socket so it reads - TIP, and insert the plug into
the socket.

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

To power the receiver from your vehicle's battery, you need an optional
DC cigarette lighter adapter, such as Cat. No. 273-1802.

CAUTIONS: The DC cigarette lighter adapter must be capable of delivering
6 volts, its center tip must be set to negative, it must supply
300 milliamps of DC automotive power, and its plug must proper-
ly fit the receiver's DC IN 6V jack. The recommended adapter
meets these specifications. Using a adapter that does not meet
these specifications could damage the receiver or the adapter.

Always plug the DC cigarette lighter adapter into the receiver
before you plug it into your vehicle's cigarette-lighter socket.
Always unplug the adapter from the vehicle's cigarette-lighter
socket before you unplug it from the receiver.

Follow these steps to power the receiver from your vehicle's battery.

1. Set the DC cigarette lighter adapter's voltage switch by 6V.

2. Insert the adapter's barrel plug 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 telescoping antenna for the desired
band.

FM - Pull up the antenna base about halfway then fully extend the antenna
and rotate it for the best reception.

LW and MW (AM) - Rotate the receiver. The receiver uses a built-in
antenna for these bands.

SW - Pull up the antenna base then fully extend the antenna and point
it straight up.

Connecting An External Antenna

To improve SW/MW/LW reception, you can connect an optional external antenna
(such as Cat. No. 20-181) directly to the AM EXT ANT jack on the left side
of the receiver. This automatically disconnects the receiver's built-in
antenna.

Follow the antenna's supplied instructions to connect it to the receiver.

Connecting Headphones

For private listening and for stereo sound during FM stereo broadcasts, you
can plug optional stereo headphones with a 1/8-inch (3.5 mm) plug (avail-
able at your local RadioShack store) into the headphone jack on the left
side of the receiver. This automatically disconnects the internal speaker.

When you connect stereo headphones and tune to a stereo broadcast,
headphones appears on the display.

Listening Safely

To protect your hearing, follow these guidelines when you use headphones.

Do not listen at extremely high volume levels. Extended high-volume can
lead to permanent hearing loss.

Set the volume to the lowest setting before you begin listening. After
you begin listening, adjust the volume to a comfortable level.

Once you set the volume, do not increase it. Over time, your ears adapt
to the volume level, so a volume level that does not cause discomfort
might still damage your hearing.

Traffic Safety

Do not use headphones with your receiver when operating a motor vehicle or
riding a bicycle in or near traffic. Doing so you can crate a traffic
hazard and could be illegal in some areas.

If you use headphones with your receiver, be very careful. Do not listen
to a continuous broadcast. Even though some headphones let you hear some
outside sounds when listening at normal volume levels, they still can pre-
sent a traffic hazard.

Connecting A Tape Recorder

You can connect an optional tape recorder to your receiver's REC LINE
OUT jack to record transmissions.

The recorder must have a line level input jack.

Note: If you use a recorder's MIC IN jack to connect to the receiver, the
sound will be distorted.

To connect a tape recorder, you need a mono patch cord (not supp-
lied) with a 1/8-inch (3.5 mm) plug on both ends. Your local Radio-
Shack store carries a wide selection of mono patch cords.

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.

Follow the instructions provided with your tape recorder to record trans-
mission from the receiver.

Note: When you connect a tape recorder, the receiver's built-in speaker
continues to work.

The REC STANDBY jack on the left side of the receiver lets you record a
broadcast at a preset time.

To connect a tape recorder to the receiver's REC STANDBY jack, you need a
mono patch cord (not supplied) with a 3/32-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.

Connect one end of the cord to the REC STANDBY jack, then connect the other
end to your recorder's STANDBY IN or REMOTE IN jack. Then see "Timer
Recording" in Faxback Doc. # 45678 for more information about using the receiver's timers to record.

Using The Stand

You can position the receiver more securely and possibly improve the sound
by resting the receiver on its stand.

Lift the latch on the back of the receiver to open the stand.

Using The Memo Label

You can use the memo label under the receiver's stand to record helpful
information, such as the memory location numbers of your favorite
stations.

Setting The MW (AM) Tuning Increment

In the United States, the Federal Communications Commission (FCC) assigns
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 frequencies are assigned in 9-kHz
increments.

MW-STEP on the right side of the receiver 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.

If you are in a country where the AM frequency increments are 9 kHz, set
MW-STEP to 9k.

Understanding Your Receiver

Once you understand a few simple terms we use in this manual and familiar-
ize yourself with your receiver's feature to listen to the world!

POWER - turns the receiver on and off.

Symbol - turns on the display light for about 12 seconds (if you installed
batteries) or until you press symbol again.

Symbol - displays the time in your area using Daylight Saving Time.

Time SET - lets you set the time.

STEP - sets the tuning range for manual tuning (see "Direct Access Tuning"
in Faxback Doc. #45678).

ATS/FM - selects the FM band and lets you select FM stations using your
receiver's automatic tuning system.

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 Symbol - enters a frequency.

TIMER 1, TIMER 2, TIMER 3 - lets 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 select the time you want to display (world time or
your home time).

M KEY - lets you lock out selected frequencies.

EDIT - lets you assign a name for each FM, MW, or LW station or for each
page when you stored an SW station.

PAGE - lets you select either of the receiver's memory pages (see "Memory
Functions" in Faxback Doc. # 45678.

PRIORITY - tunes to the priority station you set.

TUNING symbol/symbol - tunes up or down the band you selected.

(LB/SM 12/03/97)