Radio Shack 21-1650 Owner'S Manual Download Page 1

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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.

21-1650.fm Page 1 Thursday, August 5, 1999 11:43 AM

Summary of Contents for 21-1650

Page 1: ...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 21 1650 fm Page 1 Thursday August 5 1999 11 43 AM...

Page 2: ...s 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 Transmit Indicator lights whenever you pr...

Page 3: ...utomatic Display Dimmer the chan nel display automatically brightens when you press most buttons Then after a few seconds it dims to save battery power Power Charging Jack lets you power your TRC 237...

Page 4: ...to very serious consequenc es To be safe and sure Never open your TRC 237 s case Never modify your TRC 237 Your TRC 237 might cause TV or radio interference even when it is operating properly To deter...

Page 5: ...ing AC Power 13 Connecting the Antenna 15 Connecting an Optional Antenna 16 Operation 18 Receiving Transmissions and Adjusting Squelch 18 Transmitting 20 CB Operation Tips 21 Common Uses for a CB Radi...

Page 6: ...ALINE NI CD SWITCH The POWER jack lets you connect an ex ternal power source such as your vehi cle s battery power or AC power or connect a battery charger to charge nickel cadmium batteries while the...

Page 7: ...y charger to the POWER jack only when nickel cadmium batteries are in stalled see Recharging Nickel Cadmium Batteries on Page 10 Never try to re charge non rechargeable batteries They could get very h...

Page 8: ...eable batteries of different capacities 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 th...

Page 9: ...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 6 Replace the battery compartment cove...

Page 10: ...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 recommen...

Page 11: ...plug to the POWER jack on the side of the TRC 237 then plug the battery charger s plug into a standard AC outlet It takes about 24 hours to charge new or fully discharged nickel cadmium batteries Subs...

Page 12: ...ilable are municipal curbside collec tion drop off boxes at retailers such as your local RadioShack store recycling col lection centers and mail back programs USING VEHICLE BATTERY POWER You can power...

Page 13: ...POWER jack 4 Plug the power cord s other end into your vehicle s cigarette lighter socket Note If the TRC 237 does not operate when you use the DC power cord unplug the cord from the cigarette lighte...

Page 14: ...ecifica tions could damage the TRC 237 or the fused cord To help prevent an electrical short unplug the DC fused cord s plug from the AC adapter s power socket be fore you unplug the cord s barrel plu...

Page 15: ...ent damage to your TRC 237 you must connect an antenna before you operate it Follow these steps to attach the supplied flexible antenna to your TRC 237 1 Align the slots around the antenna s connector...

Page 16: ...nsider the following The location of the antenna should be as high as possible The antenna and antenna cable should be as far as possible from sources of electrical noise appli ances other radios and...

Page 17: ...compartment or other areas that produce extreme heat Follow all cautions and warnings included with the antenna Warning When installing or removing a base station CB antenna use extreme caution If th...

Page 18: ...H19 on top of the TRC 237 for the channel you want to tune To quickly tune to Channel 9 set it to CH9 9 flashes on the display To quickly tune to Channel 19 set it to CH19 19 flashes on the dis play T...

Page 19: ...annels or CH t to select lower channels To move rapidly through the channels hold down CH s or t 5 Adjust OFF VOLUME to a comfortable listening level 6 Adjust SQUELCH to cut out the back ground noise...

Page 20: ...TRC 237 lights Speak into the microphone MOD lights When you finish speaking release the button TX and MOD turn off Note Do not speak too loudly when transmitting It does not make your signal any str...

Page 21: ...or security officers a walkie talkie is more than a convenience it is a must for both safety and efficiency Personal Uses Keep in touch with home while driv ing to work to the store or to a social act...

Page 22: ...areas This table lists the codes adopted by the Associated Public Safety Communica tions Officers APCO Code Meaning 10 1 Cannot understand your mes sage 10 2 Your signal is good 10 3 Stop transmitting...

Page 23: ...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 com...

Page 24: ...mation about road conditions and any other reasonable requests MAXIMUM RANGE The maximum range and quality of CB transmissions vary depending on these conditions Amount of power in the batteries The...

Page 25: ...external antenna is attached to the TRC 237 s antenna jack Be sure the batteries are not weak see Testing the Battery Power on Page 10 Be sure you are not pressing PUSH TO TALK Trouble with transmis s...

Page 26: ...TRC 237 only in normal temperature environments Temperature extremes can shorten the life of electronic devices damage batteries and dis tort or melt plastic parts Keep the TRC 237 away from dust and...

Page 27: ...Input at 12V DC High 5 W Low 2 W Power Output High 2 5 W Low 1 W Spurious Emission 67 dB or better Type of Modulation A3 Frequency Tolerance 0 002 Antenna Impedance 50 Antenna Length 10 In 25 4 cm Cu...

Page 28: ...the warranty pe riod take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store Ra dioShack will at its option unless otherwise provided by law a correct the...

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