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Summary of Contents for Radio Shack TRC-237
- Page 1 21-1650.fm Page 1 Thursday, August 5, 1999 11:43 AM OWNER’S MANUAL Cat. No. 21-1650 TRC-237 40-Channel 5-Watt CB Walkie Talkie with Channel 9/19 Priority Switch Please read before using this equipment.
- Page 2 You can also use it on fishing trips, or at your business for supervisory, security, or warehouse personnel. Your TRC-237 also has the following fea- tures: Transmit Power High/Low Switch — lets you reduce the transceiver’s power output during short-range transmissions to save battery power.
- Page 3 Then, after a few seconds, it dims to save battery power. Power/Charging Jack — lets you power your TRC-237 from an AC or DC power source, so you can use the TRC-237 with- out draining the batteries. And, lets you charge nickel-cadmium batteries without removing them from the TRC-237.
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Page 4: Fcc Information
To determine whether your TRC-237 is causing the interference, turn off your TRC-237. If the interference goes away, your TRC-237 is causing it. Try to eliminate the interference by: • Moving your TRC-237 away from the TV or radio •... -
Page 5: Table Of Contents
21-1650.fm Page 5 Thursday, August 5, 1999 11:43 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 ... -
Page 6: Powering The Cb
21-1650.fm Page 6 Thursday, August 5, 1999 11:43 AM POWERING THE CB You can power your TRC-237 from any of these sources (none supplied): • Eight AA alkaline batteries with the two supplied dummy batteries • Ten rechargeable AA nickel- cadmium batteries •... -
Page 7: Using Batteries
USING BATTERIES You can power the TRC-237 from eight AA alkaline batteries (such as Ra- dioShack Cat. No. 23-552) with the two supplied dummy batteries, or 10 re- chargeable AA nickel-cadmium batteries (such as Cat. - Page 8 Follow these steps to install the batteries. 1. If the TRC-237 is on, turn OFF/VOLUME fully counterclockwise until it clicks to turn it off. 2. Slide the strap on the back of the...
- Page 9 AA nickel-cadmium batteries into the battery compartment, as indi- cated by the polarity symbols (+ and –) marked inside. Note: Before you use the TRC-237 with nickel-cadmium batteries, you need to charge the batteries (see “Recharging Nickel-Cadmium Batter- ies” on Page 10).
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Page 10: Testing The Battery Power
23-249 (not supplied), to charge or re- charge nickel-cadmium batteries while they are inside the TRC-237’s battery compartment. Do not use the TRC-237 while you are charging the nickel-cadmium batteries. Cautions: • Use only the recommended battery charger to recharge the batteries in the TRC-237. - Page 11 21-1650.fm Page 11 Thursday, August 5, 1999 11:43 AM Follow these steps to charge nickel- cadmium batteries in the TRC-237. 1. If the TRC-237 is on, turn OFF/VOLUME fully counterclockwise until it clicks to turn it off. 2. Set inside the bat-...
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Page 12: Using Vehicle Battery Power
RadioShack store, recycling col- lection centers, and mail-back programs. USING VEHICLE BATTERY POWER You can power your TRC-237 from your vehicle’s cigarette-lighter socket with an optional 12-volt DC fused power cord (such as Cat. No. 270-1533). Cautions: •... -
Page 13: Using Ac Power
21-1650.fm Page 13 Thursday, August 5, 1999 11:43 AM • When you finish using the TRC-237, unplug the fused cord from the ciga- rette-lighter socket before you dis- connect it from your TRC-237. 1. If the TRC-237 is on, turn... - Page 14 TRC-237. Follow these steps to connect the TRC- 237 to AC power. 1. If the TRC-237 is on, turn OFF/VOL- fully counterclockwise until it clicks to turn it off. 2. Connect the DC fused cord’s 5.5 mm outer diameter/2.1 mm inner diame-...
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Page 15: Connecting The Antenna
21-1650.fm Page 15 Thursday, August 5, 1999 11:43 AM Note: If the TRC-237 does not operate when you use the DC fused cord, turn the power supply off, unplug the cord from the power supply’s power socket, then clean any debris from the socket. If your TRC-... -
Page 16: Connecting An Optional Antenna
21-1650.fm Page 16 Thursday, August 5, 1999 11:43 AM Connecting an Optional Antenna Your walkie talkie comes with a flexible antenna that is ideal for most applications. However, the walkie talkie’s antenna jack makes it easy to connect other types of antennas, too. - Page 17 21-1650.fm Page 17 Thursday, August 5, 1999 11:43 AM Follow the installation instructions sup- plied with the antenna, route the antenna cable to the TRC-237, then connect it to the antenna jack. Cautions: • Do not run the cable over sharp edges or moving parts.
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Page 18: Operation
21-1650.fm Page 18 Thursday, August 5, 1999 11:43 AM OPERATION Before you use your TRC-237, we recom- mend you read “CB Operation Tips” on Page 21, which contains information to help you use it effectively and courteously. RECEIVING TRANSMISSIONS AND ADJUSTING SQUELCH 1. - Page 19 21-1650.fm Page 19 Thursday, August 5, 1999 11:43 AM To redisplay the channel number for about 20 seconds, simply press and release DISPLAY 4. If you set – – CH19 repeatedly press s to select higher channels, or t to select lower channels.
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Page 20: Transmitting
TRANSMITTING 1. Follow Steps 1–6 in “Receiving Transmissions Adjusting Squelch” on Page 18. 2. Hold the TRC-237 2 to 3 inches from your mouth. Press and hold PUSH TO on the side of the TRC-237. TX TALK on the front of the TRC-237 lights. -
Page 21: Cb Operation Tips
21-1650.fm Page 21 Thursday, August 5, 1999 11:43 AM CB OPERATION TIPS The following tips will help you get the most enjoyment from your TRC-237. 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. -
Page 22: Using Common 10-Codes
21-1650.fm Page 22 Thursday, August 5, 1999 11:43 AM • Camping, fishing, and other sports are more fun with a walkie talkie. Locate a friend or find out “what’s cooking” back at camp. USING COMMON 10-CODES Citizen’s band operators have largely adopted the 10-codes for standard ques- tions and answers. - Page 23 21-1650.fm Page 23 Thursday, August 5, 1999 11:43 AM Code Meaning 10-15 Message delivered. 10-16 Reply to message. 10-17 En route. 10-18 Urgent. 10-19 Contact __________. 10-20 My location is __________. 10-21 Call ________ by telephone. 10-22 Cancel last message. 10-23 Arrived at the scene.
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Page 24: Cb Courtesy
21-1650.fm Page 24 Thursday, August 5, 1999 11:43 AM CB COURTESY • Wait for a pause in someone else’s transmission before you ask for a break. • If you do not receive an answer to your call after a second attempt, sign off and wait several minutes before trying again. -
Page 25: Troubleshooting
21-1650.fm Page 25 Thursday, August 5, 1999 11:43 AM TROUBLESHOOTING If your TRC-237 is not working as it should, follow these suggestions to see if you can eliminate the problem. If you can- not, take it to your local RadioShack store for assistance. -
Page 26: Maintenance
TRC-237’s warranty and void your FCC authorization to operate it. If your TRC-237 is not per- forming as it should, take it to your local RadioShack store for assistance. -
Page 27: Specifications
21-1650.fm Page 27 Thursday, August 5, 1999 11:43 AM SPECIFICATIONS Receiver – Frequency Coverage ... 26.965 27.405 MHz Sensitivity (Max.) ... 0.5 V at 10 dB (S+N)/N Adjacent Channel Rejection ... 45 dB Squelch ... Adjustable from 1 V to 1 mV Audio Output (10% THD) ... - Page 28 21-1650.fm Page 28 Thursday, August 5, 1999 11:43 AM Limited Ninety-Day Warranty This product is warranted by RadioShack against manu- facturing defects in material and workmanship under nor- mal use for ninety (90) days from the date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and dealers.
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