Radio Shack DX 375 Shortwave Radio User Manual
DX-375 Features (200-0212) Your Realistic DX-375 AM/SW/FM-Stereo PLL Synthesized Receiver lets you choose from a wide variety of broadcasts on FM, AM, and SW (shortwave) bands. The 12 international SW bands let you tune in to the news and other programs from such sources as the British Broadcasting Corporation, Radio Cairo, and Radio Moscow, bring the voices of the world to you. The lightweight, compact receiver lets you take it almost anywhere you go.
batteries, standard household AC power (using an optional AC adapter), or DC vehicle battery power (using an optional DC adapter). Tone Control - lets you set the receiver to accentuate high or low frequency sounds. Memory Backup - keeps the programmed stations in your receiver's memory for up to 1 hour without batteries. Frequency Step Switch - lets you set the correct frequency step for different countries. Folding Stand - securely positions the receiver at an angle.
DX-375 (200-0212) Installation POWER SOURCES You can power your receiver from: Internal battery power (two alkaline C batteries). Standard household AC power (with an optional AC adapter). Vehicle battery power (with an optional DC adapter). Internal Battery Power You can power the receiver with two C batteries. For best performance, we recommend alkaline batteries, such as Radio Shack Cat. No. 23-551.
SETTING THE AM/FM TUNING INCREMENT The AM/FM frequency increment switch sets the correct frequency increments for different countries. The switch is located in the battery compartment. Set the switch using the following guidelines: If you are in the United States, Canada, or another north or south American country, the switch is already set to B for you. In this setting, the AM frequency increments are 10 KHZ and the FM frequency increments are 200 kHz.
DX-375 (200-0212) Alternate Power Sources STANDARD AC POWER To power your receiver from an AC outlet, you need an AC adapter (such as Cat. No. 273-1654). CAUTIONS: You must use an AC adapter that supplies 3 volts DC power and delivers at least 300 milliamps. Its center tip must be set to negative, and it must have a plug that properly fits your receiver's DC 3V jack. Using an adapter that does not meet these specifications could damage your receiver or the adapter.
power. 1. Set the adapter's voltage switch to 3V. 2. Connect the adapter's orange barrel-plug to the adapter's cord with TIP set to -NEG. 3. Insert the adapter's barrel plug into the receiver's DC 3V jack. disconnects the internal batteries. 4. Plug the other end of the adapter into your vehicle's cigarettelighter socket.
DX-375 (200-0212) Operation Follow these steps to listen to the receiver. WARNING: To prevent possible ear injury and hearing loss, set VOLUME to MIN before you turn on the receiver. After you turn on the receiver, set VOLUME to a comfortable listening level. 1. Press POWER to turn on the receiver. 2. Press BAND until the desired band (FM, AM, or SW) appears on the display. (See "Selecting the Band.") 3. Press MANUAL/AUTO or PRESET/DIRECT ACCESS to tune to the desired station.
direct access, preset, or scan tuning methods. Manual Tuning To manually tune to a frequency, repeatedly press MANUAL/AUTO until the display shows the frequency desired. Search Tuning To let the receiver find a station, press and hold for more than 2 seconds. The tuner quickly scans all frequencies. When you release the button, the receiver automatically tunes to the next strong station. Direct Access Tuning To tune directly to a station's frequency, press ENTER.
CAUTION: If you disconnect power from the receiver for about 1 hour, all information stored in memory will be lost. We recommend you keep the batteries installed when you use an AC or DC adapter to protect the memory from a power loss. Follow these steps to store a frequency in memory. 1. Follow Steps 1 through 4 in "Basic Operation." NOTE: Use manual, search, or direct access tuning to tune to the station's frequency you want to store. 2. Press STORE. 3.
DX-375 (200-0212) Listening Hints Listening to shortwave radio can be very exciting. Newscasts from a country where important events are taking place give you a sense of immediacy that local newscasts seldom deliver. Although shortwave listening requires no special knowledge, you might enjoy it more if you read some of the numerous books available on this subject. There are also several periodicals that give listening hints and seasonal program schedules.
To convert from kHz to kHz, divide by 1,000. For example: 15500 kHz / 1000 = 15.5 kHz To convert from kHz to meters, divide 300 by the same number of kHz. For example: 300 / 12 kHz = 25 meters TIME STANDARD FREQUENCIES The following frequencies announce the exact tine of day at specified intervals. These signals have many uses in science and technology such as giving the accurate time, verifying frequency calibration, and gaining information on radio propagation conditions.
DX-375 (200-0212) Care and Maintenance Your Realistic DX-375 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 might contain minerals that can corrode electronic circuits. Use and store the receiver only in normal temperature environments, and avoid sudden temperature changes.
DX-375 (200-0212) Troubleshooting Your receiver should give you years of trouble-free service if you follow the care instructions given in this manual. If you do have problems, the chart below might help you solve them. Problem No display, or incorrect display. Cause Batteries are weak or dead. Remedy Replace the batteries. AC or DC adapter is Connect the adapter to AC plugged into the the or DC power source. receiver but not into the power source.
DX-375 (200-0212) Specifications GENERAL Output Impedance:..............................AM, SW 8 ohms (Speaker) FM 32 ohms (Headphone) Output Power:..........................350 mW at 10% THD with a 8 ohm load Power Source:..................................................DC, 3 Volts Test Conditions: AM, SW Modulation:....................................................1000 Hz 30% Output:........................................................50mW/8 ohms Antenna Input:....................................
SW1 BAND Condition Frequency Range Maximum Sensitivity 50 mW Output/8 ohms Unit MHz Nominal 2.4 4.0 6.0 Usable Sensitivity 20dB S/N 2.4 4.0 6.0 Auto Scan Stop Sensitivity 2.4 4.0 6.0 S/N Ratio 4.0 Image Rejection 2.4 4.0 6.0 IF Rejection 2.4 AGC FOM-10 dB 4.0 T.H. Distortion 5mV/m Input 4.0 Overload Distortion 50 mV/m Input 4.0 Current Drain Local Oscillator Drop Out 2.4 DC-DC Conv. OSC Frequency Tuning Indicator On Sensitivity 4.0 Tuning Step Frequency 2.300~6.
Test Conditions: FM Modulation: Mono:...................................................1000 Hz 75 kHz Stereo:.............................................(L+R) 45% (L-R) 45% Pilot:........................................................19kHz 10% Output:........................................................1mW/32 ohms Antenna Input:.....................................................75 ohms FM BAND Condition Frequency Range 3% THD Sensitivity 1mW/32 Ohms 90.1 98.1 106.1 Usable Sensitivity 30 dB S/N 90.
200-0212 DX-375 AM/SW/FM/ST RCV Parts List To order parts call 1-800-843-7422 or visit your local radio shack store. Reference # Cat. No.
IC7 IC5 IC6 VR S1 S2 S3 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 26 A1 A2 A3 A16 A17 A21 B4 B5 B6 B7 14 27 (08/04/2004) 10844991 10868727 10868727 10868735 10883023 10890929 10899011 10922581 10922581 10922599 10922599 10966927 11055308 11055308 11055324 11055324 11055332 11055332 11055332 11055332 11055332 11084571 11392875 11392917 11393089 10868735 11210440 11210440 11212388 11212388 11212396 11212396 11212479 XEROX COPY IC,305-011 FP 60 S DIGITAL IC 3 VOLTS REPLACED BY TD
