21-1586.fm Page 1 Thursday, August 5, 1999 9:50 AM Cat. No. 21-1586 OWNER’S MANUAL Please read before using this equipment.
1-1586.fm Page 2 Thursday, August 5, 1999 9:50 AM FEATURES Your RadioShack TRC-442 FullPower 40-Channel Mobile CB Radio is a high performing, water resistant CB which can be used almost anywhere. The CB is perfect for recreational, business, or emergency use. You can call for help, or call other people with CBs at home, in their vehicles, or at camp sites. You can also connect it to optional equipment, such as an optional power supply or a base station antenna.
21-1586.fm Page 3 Thursday, August 5, 1999 9:50 AM FCC INFORMATION The Federal Communications Commission (FCC) does not require you to have a license to operate this CB radio. However, you must know Part 95 of FCC Rules. It explains the proper operation of a Class D citizen’s band transceiver. We have provided a copy of these regulations with your CB radio. Warning: Do not open your CB to make any internal adjustments. Any internal adjustments can be made only by an authorized service technician.
21-1586.fm Page 4 Thursday, August 5, 1999 9:50 AM CONTENTS Installation ............................................................................................................ 5 Attaching the Microphone Holder .................................................................... 5 Mounting the TRC-442 .................................................................................... 5 Connecting the Microphone .............................................................................
21-1586.fm Page 5 Thursday, August 5, 1999 9:50 AM INSTALLATION ATTACHING THE MICROPHONE HOLDER You can connect the microphone holder to the right side of the transceiver or to another location in your vehicle. 3. Attach the holder at the mounting location using the supplied mounting screws, lockwashers, washers, and nuts. To attach the holder to the transceiver, secure it with the supplied mounting screws and lockwashers.
21-1586.fm Page 6 Thursday, August 5, 1999 9:50 AM Cautions: • If you use the TRC-442 in a vehicle, mount it securely to avoid damage to the CB or vehicle or injury to anyone in the vehicle during sudden starts or stops. 3. Attach the bracket to the mounting surface with the supplied mounting bolts, lockwashers, washers, and nuts. • Do not mount the CB where it could damage or interfere with the proper operation of any passive restraint safety device (an air bag or seat belt).
21-1586.fm Page 7 Thursday, August 5, 1999 9:50 AM CONNECTING THE MICROPHONE 1. Align the notch on the microphone cable’s plug with the ridge in the MIC jack, then insert the plug into the jack. Note: If you are using this CB as a base station, see “Using the CB as a Base Station” on Page 9. Selecting an Antenna When deciding on an antenna and where to locate it, consider these points: • The location of the antenna should be as high as possible. 2.
21-1586.fm Page 8 Thursday, August 5, 1999 9:50 AM Cautions: • Do not run the cable over sharp edges or moving parts that might damage it. • Do not run the cable next to power cables or other CB antenna cables. • Do not run the cable through a vehicle’s engine compartment or other areas that produce extreme heat. Note: To achieve your radio’s maximum range, adjust the antenna’s Standing Wave Ratio (SWR) using an SWR meter (not supplied).
21-1586.fm Page 9 Thursday, August 5, 1999 9:50 AM USING THE CB AS A BASE STATION Although this CB is designed mainly for mobile use, you can also use it as a base station with an AC power source. For base station installation, you need the following items (all available at your local RadioShack store): • 12-volt DC power supply (such as Cat. No. 22-504) Caution: Most 12-volt DC power supplies plug into a standard AC outlet to produce DC power.
21-1586.fm Page 10 Thursday, August 5, 1999 9:50 AM OPERATION Before you use your CB radio, you should know how to use it effectively and courteously. “CB Operation Tips” on Page 12 contains information that will help you get more enjoyment from your CB radio. TURNING ON THE CB AND RECEIVING TRANSMISSIONS 1. Turn SQUELCH fully counterclockwise. 2. To turn on the CB, turn VOLUME clockwise until it clicks and you hear a hissing sound. The CB displays the last selected channel. 3.
21-1586.fm Page 11 Thursday, August 5, 1999 9:50 AM TRANSMITTING Note: We recommend you try receiving before you transmit. 1. Follow Steps 1–5 in “Turning On the CB and Receiving Transmissions” on Page 10. 2. Hold down PUSH TO TALK speak into the microphone normal voice from about inches away. The orange TX cator lights. and in a 2–3 indi- Note: Do not speak too loudly when transmitting. It does not make your signal any stronger, and might distort your transmission. 3.
21-1586.fm Page 12 Thursday, August 5, 1999 9:50 AM CB OPERATION TIPS Like most activities, CB radio has its customs and courtesies. The following tips will help you get the most enjoyment from your CB. COMMON USES FOR A CB RADIO Business Uses • Truck drivers and delivery personnel can learn road and traffic conditions and get assistance in locating destinations. A CB is also good company on those “long hauls.
21-1586.fm Page 13 Thursday, August 5, 1999 9:50 AM USING COMMON 10-CODES Citizen’s band operators have largely adopted the 10-codes for standard questions and answers. These codes permit faster communication and better intelligibility in noisy areas. This table lists codes adopted by the Associated Public-Safety Communications Officers (APCO). Code Meaning Code Meaning 10-1 Your signal is bad. 10-17 En route. 10-2 Your signal is good. 10-18 Urgent. 10-3 Stop transmitting.
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21-1586.fm Page 15 Thursday, August 5, 1999 9:50 AM TROUBLESHOOTING If your CB is not working as it should, follow these suggestions to see if you can eliminate the problem. If you cannot, take the CB to your local RadioShack store for assistance. Symptom: Trouble with reception Check That: • The CB is turned on. • VOLUME is turned up. • SQUELCH is turned counterclockwise. • PUSH TO TALK is not being pressed in. • The antenna cable is securely connected to both the antenna and the CB.
21-1586.fm Page 16 Thursday, August 5, 1999 9:50 AM REDUCING NOISE Because your CB is exceptionally quiet, any noise you hear through the CB is probably from an external source in your vehicle such as the alternator, another radio, or spark plugs. The transceiver uses an ANL (Automatic Noise Limiter) circuit to reduce noise. However, if possible, try to eliminate the noise by finding its source.
21-1586.fm Page 17 Thursday, August 5, 1999 9:50 AM CARE AND MAINTENANCE Your RadioShack TRC-442 Full-Power 40-Channel Mobile CB Radio is an example of superior design and craftsmanship. The following suggestions will help you care for your CB so you can enjoy it for years. Keep the CB dry. If it gets wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits. Keep the CB away from dust and dirt, which can cause premature wear of parts.
21-1586.fm Page 18 Thursday, August 5, 1999 9:50 AM REPLACING THE FUSE The TRC-442’s 2-amp in-line fuse helps protect your CB from power surges and short circuits. If the CB loses power because the fuse has burned out, replace it using a 2-amp, slowblow glass fuse, such as Cat. No. 2701023. Caution: Make sure you replace the fuse only with another fuse of the same type and rating. Follow these steps to replace the fuse. 1. Make sure the power source and CB are both off. 2.
21-1586.fm Page 19 Thursday, August 5, 1999 9:50 AM SPECIFICATIONS RECEIVER Frequency Coverage ................All 40 CB Channels (Class D) 26.965–27.405 MHz Sensitivity for 10dB S/N ...................................... 0.5 mV or better for 10 dB S+N/N Adjacent Channel Rejection .........................................................–40db (at 10 kHz) Audio Output .................................................................................................. 1 Watt Cross Modulation ..................
21-1586.fm Page 20 Thursday, August 5, 1999 9:50 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 companyowned stores and authorized RadioShack franchisees and dealers.
