21-1615.fm Page 1 Thursday, August 5, 1999 11:07 AM OWNER’S MANUAL Cat. No. 21-1615 TRC-93 300 mW 3-Channel Walkie-Talkie Please read before using this equipment.
1-1615.fm Page 2 Thursday, August 5, 1999 11:07 AM FEATURES Your RadioShack TRC-93 300 mW 3Channel Walkie-Talkie is a portable, twoway radio you can carry almost anywhere. You can use your TRC-93 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 personnel. Your TRC-93 has the following features: Factory-Installed Crystals — let you immediately begin using your TRC-93 on Channel 14.
21-1615.fm Page 3 Thursday, August 5, 1999 11:07 AM We recommend you record the TRC-93’s serial number here. The serial number is located on the radio’s back panel._________________ FCC INFORMATION The Federal Communications Commission (FCC) does not require you to have a license to operate this walkie-talkie. However, the FCC does require that you read and know Part 95 of FCC Rules. These rules apply to the operation of a Class D CB. We have provided a copy of these regulations with your TRC-93.
21-1615.fm Page 4 Thursday, August 5, 1999 11:07 AM CONTENTS Preparation ......................................... 5 Installing Batteries ......................... 5 Testing the Battery Power ...... 6 Using the Belt Clip...........................7 Operation ............................................ 8 Receiving Transmissions .............. 8 Transmitting .................................. 9 CB Operation Tips ............................ Common Uses for a CB Radio .... Business Uses .....................
21-1615.fm Page 5 Thursday, August 5, 1999 11:07 AM PREPARATION INSTALLING BATTERIES Your TRC-93 requires six AA alkaline batteries (such as RadioShack Cat. No. 23552) for power. Cautions: • Always use fresh batteries of the required size and type. • Do not mix old and new batteries. • Do not use rechargeable batteries in the TRC-93. Follow these steps to install batteries. 1. Remove the battery compartment cover by pressing down on the cover’s arrow, then sliding the cover down. 2.
21-1615.fm Page 6 Thursday, August 5, 1999 11:07 AM Notes: • Be sure the case’s metal plates touch the two metal plates inside the battery compartment. Metal Plates • The case fits inside the battery compartment only one way. Do not force it. 5. Replace the battery compartment cover. Note: If you will not be using the TRC-93 for several months, remove the batteries. Testing the Battery Power 1. Make sure the TRC-93 is turned on by turning OFF/VOL down toward VOL until it clicks. 2. Press BATT TEST.
21-1615.fm Page 7 Thursday, August 5, 1999 11:07 AM If the indicator lights, the batteries are good. If the indicator is dim or does not light, the batteries are weak or dead and need to be replaced. Caution: Dispose of old batteries promptly and properly. USING THE BELT CLIP To attach the supplied belt clip to the TRC-93, press the clip’s tabs into the corresponding holes on the back of the TRC93. Then push the clip upward until it locks into place.
21-1615.fm Page 8 Thursday, August 5, 1999 11:07 AM OPERATION Before you use your TRC-93, we recommend you read “CB Operation Tips” on Page 11, which contains information to help you use it effectively and courteously. RECEIVING TRANSMISSIONS 1. Fully extend the TRC-93’s telescoping antenna and hold the TRC-93 so the antenna is vertical. 2. Set CHANNEL to A, B, or C . Note: Your TRC-93 comes with Channel 14 crystals installed in channel position A.
21-1615.fm Page 9 Thursday, August 5, 1999 11:07 AM 3. Turn on the TRC93 by turning OFF/VOL down toward VOL 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 crystals in channel positions B or C. 4. To turn off the TRC-93, turn OFF/VOL up toward OFF until it clicks. TRANSMITTING 1. Follow Steps 1–3 in “Receiving Transmissions” on Page 8. 2. Hold the TRC-93 2 to 3 inches from your mouth.
21-1615.fm Page 10 Thursday, August 5, 1999 11:07 AM 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: Channel 9 is reserved for motorist assistance and for reporting emergency information about accidents, hazardous road conditions, and so on. If you have installed the necessary crystals in your TRC-93 and you are using Channel 9, always give emergency messages priority.
21-1615.fm Page 11 Thursday, August 5, 1999 11:07 AM CB OPERATION TIPS The following tips will help you get the most enjoyment from your TRC-93. 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 walkie-talkie is also good company on those “long hauls.
21-1615.fm Page 12 Thursday, August 5, 1999 11:07 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 questions and answers. Their use permits faster communication and better intelligibility in noisy areas. This table lists the codes adopted by the Associated Public Safety Communications Officers (APCO).
21-1615.fm Page 13 Thursday, August 5, 1999 11:07 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. 10-24 Assignment complete. 10-26 Estimated time of arrival is ____. 10-30 Use caution. 10-31 Pick up. 10-33 Emergency traffic. Clear the channel. 10-34 The time is _____.
21-1615.fm Page 14 Thursday, August 5, 1999 11:07 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. • Do not hold down PUSH TO TALK when you are not talking. (This is called dead keying.) • Assist callers with directions, information about road conditions, and any other reasonable requests.
21-1615.fm Page 15 Thursday, August 5, 1999 11:07 AM ADDING CRYSTALS Your TRC-93 includes two crystals (transmit and receive) installed in channel position A. The crystals let you use the CB on channel 14. You can add two more crystals in channel positions B and C so you can use any two other channels of the 40 allotted to CBs. However, you must use only crystals specifically designed for the TRC-93, available from your local RadioShack store.
21-1615.fm Page 16 Thursday, August 5, 1999 11:07 AM Channel Transmit Receive 16 27.155 26.700 17 27.165 26.710 18 27.175 26.720 19 27.185 26.730 20 27.205 26.750 21 27.215 26.760 22 27.225 26.770 23 27.255 26.800 24 27.235 26.780 25 27.245 26.790 26 27.265 26.810 27 27.275 26.820 28 27.285 26.830 29 27.295 26.840 30 27.305 26.850 31 27.315 26.860 32 27.325 26.870 33 27.335 26.880 34 27.345 26.890 35 27.355 26.900 36 27.365 26.910 37 27.
21-1615.fm Page 17 Thursday, August 5, 1999 11:07 AM 2. Remove the battery case. 3. Use a Phillips screwdriver to remove the back cover’s two screws. 4. Firmly grasp the TRC-93’s front and back cover’s sides and carefully pull the back cover away from the front cover. 5. Insert a new matched pair of crystals (send and receive) into the sockets for Channel B or C. The sockets for the crystals are marked next to Channel A on the circuit board with X1 (receive) and X2 (transmit).
21-1615.fm Page 18 Thursday, August 5, 1999 11:07 AM (some circuitry details left out for clarity) 6. When you have finished installing new crystals, carefully fit the TRC93’s front and back cover’s sides together, then gently squeeze them together. Replace the back cover’s two screws, replace the battery case, then replace the battery compartment cover.
21-1615.fm Page 19 Thursday, August 5, 1999 11:07 AM TROUBLESHOOTING If your TRC-93 is not working as it should, follow these suggestions to see if you can eliminate the problem. If you cannot, take it to your local RadioShack store for assistance. Symptom Suggestion Weak, bad, or no reception. Be sure the TRC-93 is turned on. Be sure the volume is turned up. Be sure the antenna is fully extended. Be sure the batteries are not weak (see “Testing the Battery Power” on Page 6).
21-1615.fm Page 20 Thursday, August 5, 1999 11:07 AM MAINTENANCE Your RadioShack TRC-93 300 mW 3Channel Walkie-Talkie is an example of superior design and craftsmanship. The following suggestions will help you care for your TRC-93 so you can enjoy it for years. Keep the TRC-93 dry. If it gets wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits. Handle the TRC-93 gently and carefully.
-1615.fm Page 21 Thursday, August 5, 1999 11:07 AM SPECIFICATIONS Receiver Frequency Coverage ... 26.965 – 27.405 MHz (Supplied with Channel 14 (27.125 MHz) crystals in the Channel A position) Sensitivity .................. 2 µV for 10 dB (S+N)/N Adjacent Channel Selectivity ................ 15 dB Audio Output (10% THD) ................. 400 mW Current Drain .............................. 32 –180 mA Transmitter Frequency Coverage ... 26.965 – 27.405 MHz Power Input ............
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21-1615.fm Page 24 Thursday, August 5, 1999 11:07 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 company-owned stores and authorized RadioShack franchisees and dealers.
