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21-1620.fm Page 1 Thursday, August 5, 1999 11:16 AM
OWNER’S MANUAL Cat. No. 21-1620
TRC-235
2 Watt 3-Channel
CB Walkie-Talkie
Please read before using this equipment.
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21-1620.fm Page 2 Thursday, August 5, 1999 11:16 AM FEATURES Your RadioShack TRC-235 2 Watt 3- Channel CB Walkie-Talkie is a portable, two-way radio you can carry almost any- where. You can use your TRC-235 around the house, in your office, or in your car or boat. You can also use it on fishing and camping trips, or at your business for supervisory, security, or warehouse per- sonnel. Your TRC-235 has the following features: Factory-Installed Crystals — let you im- mediately begin using your
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21-1620.fm Page 3 Thursday, August 5, 1999 11:16 AM Power/Charging Jack — lets you power your TRC-235 from an AC or DC power source, so you can use the TRC-235 with- out draining the batteries. And, lets you charge nickel-cadmium batteries without removing them from the TRC-235. Note: You need eight AA alkaline batter- ies or ten nickel-cadmium rechargeable batteries (not supplied) to power your TRC-235. We recommend you record the TRC- 235’s serial number here. The serial number is located
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21-1620.fm Page 4 Thursday, August 5, 1999 11:16 AM Your TRC-235 might cause TV or radio interference even when it is operating properly. To determine whether your TRC-235 is causing the interference, turn off your TRC-235. If the interference goes away, your TRC-235 is causing it. Try to eliminate the interference by: • Moving your TRC-235 away from the TV or radio • Contacting your local RadioShack store for help Warning: Do not open your TRC-235 to make any internal adjustments other than
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21-1620.fm Page 5 Thursday, August 5, 1999 11:16 AM CONTENTS Powering the CB ................................ 6 Using the POWER Jack and ALKALINE/NI-CD Switch................... 6 Using Batteries ................................. 7 Testing the Battery Power .......... 10 Recharging Nickel-Cadmium Batteries ..................................... 10 Using Vehicle Battery Power........... 12 Using AC Power ............................. 13 External Antenna .............................. 15 Operat
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21-1620.fm Page 6 Thursday, August 5, 1999 11:16 AM POWERING THE CB You can power your TRC-235 from any of these sources: • Eight AA alkaline batteries (not sup- plied) with two dummy batteries (supplied) • Ten rechargeable AA nickel- cadmium batteries (not supplied) • 12-volt vehicle battery power using a fused power cord (not supplied) • Standard AC power using a power supply (not supplied) USING THE POWER JACK AND ALKALINE/NI-CD SWITCH The POWER jack lets you connect an ex- ternal power
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21-1620.fm Page 7 Thursday, August 5, 1999 11:16 AM •Set it to ALKALINE before you con- nect an external power source (vehi- cle battery power or AC adapter) to the POWER jack or while you are us- ing internal batteries (alkaline or re- chargeable). •Set it to NI–CD only when you are connecting a battery charger in order to charge the installed rechargeable NI CD batteries. Be sure you set it to – before you connect a battery charger to the POWER jack. Warning: To avoid injuring yourself or
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21-1620.fm Page 8 Thursday, August 5, 1999 11:16 AM Cautions: • Always use fresh, or freshly charged, batteries of the required size and type. • Do not mix old and new batteries, different types of batteries (stan- dard, alkaline, or rechargeable nickel-cadmium), or rechargeable batteries of different capacities. Follow these steps to install the batteries. 1. If the TRC-235 is on, turn OFF/VOLUME fully counterclockwise until it clicks to turn it off. 2. Slide the strap on the back of the TRC
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21-1620.fm Page 9 Thursday, August 5, 1999 11:16 AM 4. Be sure ALKALINE/NI–CD inside the battery compartment is set to ALKA- LINE. 5. Put eight AA alkaline batteries and the two supplied dummy batteries, or ten AA nickel-cadmium batteries into the battery compartment, as indi- cated by the polarity symbols (+ and –) marked inside. Note: Before you use the TRC-235 with nickel-cadmium batteries, you need to charge the batteries (see “Recharging Nickel-Cadmium Batter- ies” on Page 10). 6. Repla
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21-1620.fm Page 10 Thursday, August 5, 1999 11:16 AM Testing the Battery Power 1. Turn on the TRC-235 by rotating OFF/VOLUME clockwise until it clicks. 2. Hold down BATT TEST. If the indica- tor lights, there is enough battery power to operate the CB. If the indi- cator is dim or does not light, replace or recharge the batteries. Recharging Nickel-Cadmium Batteries You can use a battery charger, such as Cat. No. 23-249 (not supplied), to charge or recharge nickel-cadmium batteries while they
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21-1620.fm Page 11 Thursday, August 5, 1999 11:16 AM Follow these steps to charge nickel- cadmium batteries in the TRC-235. 1. If the TRC-235 is on, turn OFF/VOLUME fully counterclockwise until it clicks to turn it off. 2. Set ALKALINE/NI–CD inside the bat- tery compartment to NI–CD (see “Us- ing the Power Jack and Alkaline/NI- CD Switch” on Page 6). 3. Connect the battery charger’s barrel plug to the POWER jack on the side of the TRC-235, then plug the bat- tery charger’s plug into a standa
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21-1620.fm Page 12 Thursday, August 5, 1999 11:16 AM 4. When charging is complete, unplug the battery charger’s plug from the AC outlet. Then, disconnect the bat- tery charger’s barrel plug from the POWER jack. Note: You can use an external charger (such as Cat. No. 23-134, not sup- plied) to recharge the nickel-cadmium batteries. After removing the batteries from the TRC-235, follow the instructions that come with the external charger. Important: Your TRC-235 is capable of using nickel-cadmi
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21-1620.fm Page 13 Thursday, August 5, 1999 11:16 AM • When you finish using the TRC-235, unplug the fused cord from the ciga- rette-lighter socket before you dis- connect it from your TRC-235. 1. If the TRC-235 is on, turn OFF/VOL- UME fully counterclockwise until it clicks to turn it off. 2. Be sure ALKALINE/NI–CD inside the ALKA- battery compartment is set to LINE. 3. Insert the power cord’s 5.5 mm outer diameter/2.1 mm inner diameter bar- rel plug into the POWER jack. 4. Plug the power
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21-1620.fm Page 14 Thursday, August 5, 1999 11:16 AM • To help prevent an electrical short, unplug the adapter from the AC out- let before you unplug the adapter from the TRC-235. Follow these steps to connect the TRC- 235 to AC power. 1. Connect the adapter’s 5.5 mm outer diameter/2.1 mm inner diameter bar- rel plug to the adapter’s cord, setting TIP to + (positive) 2. Be sure ALKALINE/NI–CD inside the battery compartment is set to ALKA- LINE. 3. Connect the adapter’s barrel plug to the T
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21-1620.fm Page 15 Thursday, August 5, 1999 11:16 AM EXTERNAL ANTENNA Your walkie-talkie comes with a telescop- ing antenna that is ideal for most applica- tions. However, the walkie-talkie’s EXT ANTENNA jack makes it easy to connect other types of antennas, too. For mobile or base station use, you might want to connect an optional external antenna. Your local RadioShack store carries a wide selection of external mobile or out- door base-station antennas. Choose the one that best meets your n
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21-1620.fm Page 16 Thursday, August 5, 1999 11:16 AM • For the best performance when you use an external antenna, do not extend the TRC-235’s telescoping antenna. Follow the installation instructions sup- plied with the antenna, route the antenna cable to the TRC-235, then connect it to the EXT ANTENNA jack. Cautions : • Do not run the cable over sharp edges or moving parts. • Do not run the cable next to power cables or other CB antenna cables. • Do not run the cable through a vehi- cle’s en
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21-1620.fm Page 17 Thursday, August 5, 1999 11:16 AM OPERATION Before you use your TRC-235, we recom- mend you read “CB Operation Tips” on Page20, which contains information to help you use it effectively and courteously. RECEIVING TRANSMISSIONS AND ADJUSTING SQUELCH 1. If you did not con- nect an external antenna, fully ex- tend the TRC- 235’s telescoping antenna and hold the TRC-235 so the antenna is ver- tical. Caution: Unless an external an- tenna is attached, you should fully extend th
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21-1620.fm Page 18 Thursday, August 5, 1999 11:16 AM 3. Turn on the TRC-235 by turning OFF/ VOLUME clockwise until you hear a click and a hissing sound. Note: You might not hear a hissing sound if CHANNEL is set to B or C and you haven’t installed any crys- tals in channel positions B or C. 4. Adjust OFF/VOLUME to a comfortable listening level. 5. Adjust SQUELCH to cut out the back- ground noise. To do this, wait until there is no signal on the channel. Then slowly turn SQUELCH clock- wise un
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21-1620.fm Page 19 Thursday, August 5, 1999 11:16 AM TRANSMITTING 1. Follow Steps 1–5 in “Receiving Transmissions and Adjusting Squelch” on Page 17. 2. Hold the TRC-235 2 to 3 inches from your mouth. Hold down PUSH TO TALK on the side of the TRC-235 and speak in a normal voice into the microphone. Microphone When you finish speaking, release the button. Note: Do not speak too loudly when transmitting. It does not make your signal any stronger, and might distort your transmission. Important: C
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21-1620.fm Page 20 Thursday, August 5, 1999 11:16 AM CB OPERATION TIPS The following tips will help you get the most enjoyment from your TRC-235. COMMON USES FOR A CB RADIO Business Uses • Truck drivers and delivery personnel can learn road and traffic conditions and get assistance in locating desti- nations. A walkie-talkie is also good company on those “long hauls.” • On construction crews, a walkie- talkie quickly pays for itself when you are calling for additional materials or coordinati
