20-227.fm Page 1 Wednesday, August 4, 1999 10:13 AM Cat. No. 20-227 OWNER’S MANUAL Please read before using this equipment.
0-227.fm Page 2 Wednesday, August 4, 1999 10:13 AM FEATURES Your RadioShack DX-397 AM/FM/SW 12-Band Portable Receiver brings you the voices of the world. Simple to operate, the receiver tunes mediumwave (MW or AM), FM, and shortwave stations. In the 10 international shortwave bands, you can hear news broadcasts and other programs from sources around the world, such as Radio Japan, Israel Radio, the British Broadcasting Corporation, and Radio Australia.
20-227.fm Page 3 Wednesday, August 4, 1999 10:13 AM CONTENTS Preparation .................................................................................. Connecting to Power ............................................................. Installing Batteries .......................................................... Using Standard AC Power ............................................. Using Vehicle Battery Power .......................................... Adjusting the Antennas .............................
20-227.fm Page 4 Wednesday, August 4, 1999 10:13 AM PREPARATION CONNECTING TO POWER You can power the receiver from internal batteries, standard AC power, or your vehicle’s battery. Installing Batteries You can use three AA batteries (not supplied) to power the receiver. For the best results and longest life, we recommend alkaline batteries such as RadioShack Cat. No. 23-552. Cautions: • Always use fresh batteries of the required size and recommended type.
20-227.fm Page 5 Wednesday, August 4, 1999 10:13 AM Cautions: • If you will not be using battery power or if you will only use an adapter 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 4.
20-227.fm Page 6 Wednesday, August 4, 1999 10:13 AM 1. Set the adapter’s voltage switch to 4.5V. 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 4.5V 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.
20-227.fm Page 7 Wednesday, August 4, 1999 10:13 AM 1. Set the DC cigarette lighter adapter’s voltage switch to 4.5V. 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 adapter’s barrel plug into the receiver’s DC IN 4.5 V jack. 4. Insert the adapter’s plug into the vehicle’s cigarette-lighter socket.
20-227.fm Page 8 Wednesday, August 4, 1999 10:13 AM CONNECTING AN EARPHONE/ HEADPHONES For private listening, you can plug optional mono headphones or an earphone with a 1/8-inch (3.5 mm) plug (both available at your local RadioShack store) into the jack on the left side of the receiver. This automatically disconnects the internal speaker. (illus) Listening Safely To protect your hearing, follow these guidelines when you use an earphone or headphones. • Do not listen at extremely high volume levels.
20-227.fm Page 9 Wednesday, August 4, 1999 10:13 AM Traffic Safety Do not use an earphone or headphones with your receiver 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 an earphone or headphones with your receiver, be very careful. Do not listen to a continuous broadcast.
20-227.fm Page 10 Wednesday, August 4, 1999 10:13 AM OPERATION 1. To turn on the receiver, slide POWER to ON. (illus) 2. Set SW/MW/FM to the desired band. To tune a shortwave broadcast, set SW/MW/FM to one of the SW bands (1 to 10). See “International Frequencies” on Page 12 for information about each SW band. (illus) 3. Adjust TUNING to tune to the desired station then adjust either of the radio’s antennas if necessary (see “Adjusting the Antennas” on Page 7).
20-227.fm Page 11 Wednesday, August 4, 1999 10:13 AM 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 special listening techniques. The information in this section can help you make the most of your DX-397.
20-227.fm Page 12 Wednesday, August 4, 1999 10:13 AM Use the following equations to convert kHz, MHz, and meters. To convert MHz to kHz, multiply by 1,000. For example: 9.62 MHz ¥ 1000 = 9,620 kHz To convert kHz to MHz, divide by 1,000. For example: 2780 kHz ³ 1000 = 2.780 MHz To convert MHz to meters, divide 300 by the number of MHz. For example: 300 ³ 7.1 MHz = 42.25 meters To convert meters to MHz, divide 300 by the number of meters. For example: 300 ³ 42.25 meters = 7.
20-227.fm Page 13 Wednesday, August 4, 1999 10:13 AM Band Frequency Range (in MHz) SW6 ** 13.25–14.28 SW7 15.00–16.05 SW8 17.30–18.18 SW9 18.70–19.25 SW10 21.20–22.30 * These bands are reserved for stations in tropical areas. ** Interference is heavy in this band because amateur radio operators and international stations share this range. Time Standard Frequencies These stations announce the exact time of day at specified intervals.
20-227.fm Page 14 Wednesday, August 4, 1999 10:13 AM LISTENING GUIDE The following list contains some of the most popular 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, upto-date listings, see “Reference Sources” on Page 11.
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20-227.fm Page 18 Wednesday, August 4, 1999 10:13 AM CARE AND MAINTENANCE Your RadioShack DX-397 AM/FM/SW 12-Band Portable Receiver 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. Liquids can contain minerals that can corrode the electronic circuits. Use and store the receiver only in normal temperature environments.
20-227.fm Page 19 Wednesday, August 4, 1999 10:13 AM THE FCC WANTS YOU TO KNOW Your receiver might cause radio or TV interference even when it is operating properly. To determine whether your receiver is causing the interference, turn off your receiver. If the interference goes away, your receiver is causing it.
-227.fm Page 20 Wednesday, August 4, 1999 10:13 AM SPECIFICATIONS Power Supply ........................................................... 3 AA batteries AC/DC adapter 4.5V DC 200 mA center tip negative Frequency Ranges: FM ....................................................................... 88–108 MHz MW (AM) .......................................................... 530–1710 kHz SW1 (60 m) ..................................................... 4.39–5.18 MHz SW2 (49 m) ................................
20-227.fm Page 21 Wednesday, August 4, 1999 10:13 AM SW5 (25 m) ............................................ SW6 (21 m) ............................................ SW7 (19 m) ............................................ SW8 (16 m) ............................................ SW9 (15 m) ............................................ SW10 (13 m) .......................................... 12.6 µV at 11.7 MHz 12.6 µV at 13.8 MHz 15.9 µV at 15.5 MHz 15.9 µV at 17.5 MHz 15.9 µV at 18.9 MHz 15.9 µV at 21.
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20-227.fm Page 24 Wednesday, August 4, 1999 10:13 AM Limited Ninety-Day Warranty This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for ninety (90) days from the date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and dealers.