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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.
TRC-442
Full-Power 40-Channel
Mobile CB Radio
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21-1586.fm Page 2 Thursday, August 5, 1999 9:50 AM FEATURES Your RadioShack TRC-442 Full- Large, Illuminated, Digital Display Power 40-Channel Mobile CB Radio is — clearly shows the channel number. a high performing, water resistant CB which can be used almost anywhere. Base Station Capability — lets you The CB is perfect for recreational, use the transceiver as a base station business, or emergency use. You can powered from a standard AC outlet call for help, or call other people with (with
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21-1586.fm Page 3 Thursday, August 5, 1999 9:50 AM Your CB radio might cause TV or ra- FCC INFORMATION dio interference even when it is oper- ating properly. To determine whether The Federal Communications Com- your CB radio is causing the interfer- mission (FCC) does not require you to ence, turn off your CB. If the interfer- have a license to operate this CB ra- ence goes away, your CB radio is dio. However, you must know Part 95 causing it. Try to eliminate the interfer- of FCC Rules. It e
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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 ...........................................................................
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21-1586.fm Page 5 Thursday, August 5, 1999 9:50 AM INSTALLATION 3. Attach the holder at the mounting ATTACHING THE location using the supplied mount- MICROPHONE HOLDER ing screws, lockwashers, wash- ers, and nuts. You can connect the microphone hold- er to the right side of the transceiver or to another location in your vehicle. To attach the holder to the transceiver, secure it with the supplied mounting screws and lockwashers. MOUNTING THE TRC-442 The most common mounting location for th
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21-1586.fm Page 6 Thursday, August 5, 1999 9:50 AM Cautions: 3. Attach the bracket to the mounting surface with the supplied mount- • If you use the TRC-442 in a vehi- ing bolts, lockwashers, washers, cle, mount it securely to avoid and nuts. damage to the CB or vehicle or in- jury to anyone in the vehicle dur- ing sudden starts or stops. • 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). Follow
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21-1586.fm Page 7 Thursday, August 5, 1999 9:50 AM Note: If you are using this CB as a CONNECTING THE base station, see “Using the CB as a MICROPHONE Base Station” on Page 9. 1. Align the notch on the microphone cable’s plug with the ridge in the Selecting an Antenna MIC jack, then insert the plug into the jack. When deciding on an antenna and where to locate it, consider these points: • The location of the antenna should be as high as possible. • The antenna and antenna cable should be as
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21-1586.fm Page 8 Thursday, August 5, 1999 9:50 AM Cautions: USING VEHICLE • Do not run the cable over sharp BATTERY POWER edges or moving parts that might damage it. You can power this CB from your vehi- cle’s battery or from standard AC pow- • Do not run the cable next to power er with an optional DC power supply. cables or other CB antenna For information on using AC power, cables. see “Using the CB as a Base Station” • Do not run the cable through a on Page 9. vehicle’s engine compartmen
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21-1586.fm Page 9 Thursday, August 5, 1999 9:50 AM Warning: Use extreme caution USING THE CB AS A when you install or remove a base BASE STATION station CB antenna. If the antenna starts to fall, let it go. It could con- Although this CB is designed mainly tact overhead power lines. If the for mobile use, you can also use it as antenna touches the power line, a base station with an AC power contact with the antenna, mast, source. For base station installation, cable, or guy wires can cause y
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21-1586.fm Page 10 Thursday, August 5, 1999 9:50 AM OPERATION Before you use your CB radio, you 3. To tune to a specific channel, ro- should know how to use it effectively tate CHANNEL clockwise or coun- and courteously. “CB Operation Tips” terclockwise until the display on Page 12 contains information that shows the desired channel. will help you get more enjoyment from your CB radio. TURNING ON THE CB AND RECEIVING To rapidly move up or down the TRANSMISSIONS channels, turn CHANNEL only s
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21-1586.fm Page 11 Thursday, August 5, 1999 9:50 AM TRANSMITTING Note: We recommend you try receiv- ing before you transmit. 1. Follow Steps 1–5 in “Turning On the CB and Receiving Transmis- sions” on Page 10. PUSH TO TALK 2. Hold down and speak into the microphone in a normal voice from about 2–3 inches away. The orange TX indi- cator lights. Note: Do not speak too loudly when transmitting. It does not make your signal any stronger, and might distort your transmis- sion. 3. When you finis
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21-1586.fm Page 12 Thursday, August 5, 1999 9:50 AM CB OPERATION TIPS Like most activities, CB radio has its • Contact friends or neighbors — customs and courtesies. The following find out “what’s happening” or tips will help you get the most enjoy- plan a get-together. ment from your CB. • Ever have car trouble or run out of gas on the highway? What an as- surance it is to be able to radio for COMMON USES FOR A assistance! CB RADIO • Camping, fishing, and other sports are more fun with a
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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 Commu- nications 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. 10-19 Contact ___
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21-1586.fm Page 14 Thursday, August 5, 1999 9:50 AM MAXIMUM RANGE The maximum range and quality of CB radio transmissions vary depending on these conditions: • The type and quality of antenna used • The height of the antenna’s mounting location — the higher the antenna, the better the sig- nal’s range • The surrounding terrain — moun- tains and tall buildings limit the range • Weather conditions • The number of nearby CBs oper- ating on the same channel • Standing wave ratio (SWR) be- tween
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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: Check That: Trouble with reception • 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. Trouble
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21-1586.fm Page 16 Thursday, August 5, 1999 9:50 AM • If problems persist, check your REDUCING NOISE alternator/generator and regula- tor gauges. You can reduce the Because your CB is exceptionally qui- noise from these sources by using et, any noise you hear through the CB bypass capacitors at the various is probably from an external source in output voltage points. your vehicle such as the alternator, an- other radio, or spark plugs. Your local RadioShack store has a wide selection of nois
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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. Handle the CB
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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 los- es power because the fuse has burned out, replace it using a 2-amp, slow- blow glass fuse, such as Cat. No. 270- 1023. 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. Holding the f
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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 ....
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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 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 PURPOS
