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21-1672.fm Page 1 Thursday, August 5, 1999 12:04 PM
Cat. No. 21-1672
OWNER’S MANUAL
Please read before using this equipment.
TRC-232
4-Watt 40-Channel
CB Walkie-Talkie
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21-1672.fm Page 2 Thursday, August 5, 1999 12:04 PM FEATURES Your Radio Shack TRC-232 4-Watt 40-Channel CB Walkie- Talkie is a portable, two-way citizen’s band radio that you can carry almost anywhere. Use it around the house, in your office, or in your car or boat. You can put your walkie-talkie to good use on fishing and camping trips, or you can use it in your business for security patrols, supervisors, or warehouse personnel. Your walkie-talkie has these advanced features: Digital Phase-L
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21-1672.fm Page 3 Thursday, August 5, 1999 12:04 PM Built-In, Ceramic Filters — ensure superior selectivity and free- dom from adjacent-channel interference. Automatic Modulation Control — ensures a constant RF mod- ulation level. Automatic Gain Control — maintains a constant volume level, regardless of the signal strength. Automatic Noise Limiter — helps reduce noise caused by nearby electrical equipment, such as motors or automotive igni- tion systems. DC Adapter Cord — lets you operate the
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21-1672.fm Page 4 Thursday, August 5, 1999 12:04 PM CONTENTS Preparation ............................................................................ 6 Connecting an Antenna ................................................... 6 Power Sources ................................................................. 8 Using Alkaline Batteries ............................................ 8 Using Rechargeable Batteries ................................ 10 Charging Nickel-Cadmium Batteries ................
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21-1672.fm Page 5 Thursday, August 5, 1999 12:04 PM Replacing the DC Car Adapter Fuse .............................. 35 Specifications ..................................................................... 36 PREPARATION CONNECTING AN ANTENNA Caution: To prevent damage to your walkie-talkie, you must connect an antenna before you operate the walkie-talkie. Your walkie-talkie comes with a helical antenna that is ideal for most applications. However, the walkie-talkie’s BNC antenna connector ma
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21-1672.fm Page 6 Thursday, August 5, 1999 12:04 PM 3. Press down and turn the antenna’s base clockwise until it locks into place. Note: If you are powering your walkie-talkie from your vehicle’s cigarette lighter socket or from AC power, you can connect the supplied DC adapter cord’s antenna connector to an external antenna (see “Using Vehicle Battery Power” on Page 13 or “Us- ing AC Power” on Page 15). To use a base-station or mobile antenna, attach an appropriate connector adapter (not sup
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21-1672.fm Page 7 Thursday, August 5, 1999 12:04 PM Warning: Use extreme caution when installing or removing an outdoor antenna. If the antenna starts to fall, let it go! It could contact overhead power lines. If the antenna touches a power line, contact with the antenna, mast, cable, or guy wires can cause electrocution and death. Call the power company to re- move the antenna. DO NOT attempt to do so yourself. POWER SOURCES You can power the walkie-talkie from any of four sources: • Alkalin
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21-1672.fm Page 8 Thursday, August 5, 1999 12:04 PM Follow these steps to install batteries in the alkaline battery case. 1. If the alkaline battery case is connected to the walkie- talkie, push the battery latch up and slide the battery case off the walkie-talkie. 2. Using your thumb, press down on one of the arrow marks on top of the battery case and pull it open. 3. Remove old batteries, if necessary, and install six fresh AA alkaline batteries, according to the polarity marks (+ and –) in
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21-1672.fm Page 9 Thursday, August 5, 1999 12:04 PM 4. Press the battery case back together and slide it onto the walkie-talkie. Cautions: • Never mix different types of batteries, and never mix old and new batteries. • Do not put alkaline batteries in the rechargeable battery case. • Use only replacement batteries of the required type. • Do not dispose of the batteries in a fire because they can explode. • Do not open or mutilate a battery. Swallowing a battery can be fatal. • Be careful no
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21-1672.fm Page 10 Thursday, August 5, 1999 12:04 PM Follow these steps to install batteries in the rechargeable battery case. 1. If the rechargeable battery case is connected to the walkie- talkie, push the battery latch up and slide the battery case off the walkie-talkie. 2. Using your thumb, press down on one of the arrow marks on top of the battery case and pull it open. 3. Remove old batteries, if necessary, and install nine AA rechargeable batteries, according to the polarity marks (+ a
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21-1672.fm Page 11 Thursday, August 5, 1999 12:04 PM • Do not dispose of the batteries in a fire because they can explode. • Do not open or mutilate a battery. Swallowing a battery can be fatal. • Be careful not to short the batteries with conducting materi- als, such as rings, bracelets, and keys. The batteries or conductor might overheat and burn. • At the end of a rechargeable battery’s useful life, it must be recycled or disposed of properly. Contact your local, county, or state hazardous
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21-1672.fm Page 12 Thursday, August 5, 1999 12:04 PM Uncap the power jack cover on the battery case, attach the adapter plug to the adapter, insert the adapter plug into the pow- er jack, then plug the charger into a standard AC outlet. Warning: Never try to recharge alkaline or other non- rechargeable batteries. Charging non-rechargeable batteries can cause them to become very hot and possibly explode. Notes: • You can recharge the batteries with the battery case at- tached to the walkie-tal
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21-1672.fm Page 13 Thursday, August 5, 1999 12:04 PM Using Vehicle Battery Power Your walkie-talkie comes with a DC car adapter that is ideal for use in your vehicle. It lets you power your walkie-talkie from your vehicle’s cigarette lighter socket (if your vehicle has a 12-volt negative-ground electrical system), and its antenna adapter con- nector makes it easy to connect to an external antenna mounted on your vehicle. Your local Radio Shack store sells a wide vari- ety of mobile walkie-tal
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21-1672.fm Page 14 Thursday, August 5, 1999 12:04 PM 3. Insert the cigarette lighter plug into your vehicle’s cigarette lighter socket. Note: If the walkie-talkie does not operate properly when you use the DC car adapter, unplug the cord from the lighter socket and clean any ashes or other debris from the socket. If it still does not operate properly, check the fuse in the DC car adapter plug (see “Replacing the DC Car Adapter Fuse” on Page 34). 4. To connect an external, mounted antenna usin
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21-1672.fm Page 15 Thursday, August 5, 1999 12:04 PM Using AC Power You can operate the walkie-talkie from AC power using the sup- plied DC car adapter, a 12-volt DC power supply (such as Cat. No. 22-120), and a cigarette lighter accessory outlet (such as Cat. No. 270-1539). The supplied DC car adapter also lets you connect an external, mounted walkie-talkie antenna. Note: Most 12-volt DC power supplies plug into a standard AC outlet to produce DC power. Before connecting your walkie- talkie
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21-1672.fm Page 16 Thursday, August 5, 1999 12:04 PM Caution: Before plugging the plug into your cigarette lighter accessory outlet, make sure the cap is screwed firmly onto the plug. See “Replacing the DC Car Adapter Fuse” on Page 34 for more information about the cigarette lighter plug. 3. Insert the cigarette lighter plug on the DC car adapter into the cigarette lighter accessory outlet. 4. Connect the DC power supply to a standard AC outlet. 5. To connect an external, mounted antenna usi
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21-1672.fm Page 17 Thursday, August 5, 1999 12:04 PM 6. When you finish using the DC adapter cord, disconnect it from the cigarette lighter accessory outlet. Then disconnect the adapter cord from your walkie-talkie. Reconnect the supplied antenna to the antenna jack on the walkie-talkie. USING AN EXTERNAL SPEAKER In a noisy area, an external speaker positioned in the right place might provide more comfortable listening. Remove the cap and 1 plug the speaker cable’s /8-inch (3.5 mm) mini plug
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21-1672.fm Page 18 Thursday, August 5, 1999 12:04 PM CONNECTING AN EXTERNAL SPEAKER/MICROPHONE You can use an external speaker/microphone (such as Cat. No. 19-310) for hands-free operation. Remove the cap and plug the speaker/microphone’s connector into the walkie-talkie’s MIC and SPK jacks. USING THE WRIST STRAP You can use the attached wrist strap to keep the walkie-talkie accessible. Simply slip the strap over your hand. USING THE BELT CLIP You can use the attached belt clip to make the w
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21-1672.fm Page 19 Thursday, August 5, 1999 12:04 PM OPERATION Before you use your walkie-talkie, you should know how to use it effectively and courteously. “Operational Hints” contains infor- mation that will help you get more enjoyment from your walkie- talkie. RECEIVING TRANSMISSIONS AND ADJUSTING SQUELCH 1. Turn SQUELCH fully counterclockwise. 2. Turn on the power by turning VOLUME clockwise. 19
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21-1672.fm Page 20 Thursday, August 5, 1999 12:04 PM 3. Press UP or DWN until the desired channel appears on the display. As you receive signals, the signal meter on the dis- play shows the incoming signal strength. Important! Channel 9 is reserved for motorist assistance and for reporting emergency information about accidents, hazardous road conditions, and so on. Always give emer- gency messages priority on Channel 9. 4. Adjust SQUELCH to cut out background noise between transmissions. To
