Radio Shack TRC-237 User Manual

OWNER’S MANUAL Cat. No. 21-1650TRC-23740-Channel 5-WattCB Walkie Talkiewith Channel 9/19 Priority SwitchPlease read before using this equipment.21-165

10Testing the Battery Power1. Turn on the TRC-237 by rotatingOFF/VOLUME clockwise until it clicks.2. Hold down BATT TEST. If the indica-tor lights, th

11Follow these steps to charge nickel-cadmium batteries in the TRC-237.1. If the TRC-237 is on, turn OFF/VOLUMEfully counterclockwise until it clicks

12Note: You can use an external charger(such as Cat. No. 23-134, not sup-plied) to recharge the nickel-cadmiumbatteries. After removing the batteriesf

13• 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 T

14Cautions: • The power supply must be able todeliver 12 volts and at least 1200 mil-liamps of power. The recommendedpower supply meets these specific

15Note: If the TRC-237 does not operatewhen you use the DC fused cord, turn thepower supply off, unplug the cord from thepower supply’s power socket,

16Connecting an Optional AntennaYour walkie talkie comes with a flexibleantenna that is ideal for most applications.However, the walkie talkie’s anten

17Follow the installation instructions sup-plied with the antenna, route the antennacable to the TRC-237, then connect it tothe antenna jack.Cautions:

18OPERATIONBefore you use your TRC-237, we recom-mend you read “CB Operation Tips” onPage 21, which contains information tohelp you use it effectively

19To redisplay the channel number forabout 20 seconds, simply press andrelease DISPLAY.4. If you set OUT – CH9 – CH19 to OUT,repeatedly press CH s to

2FEATURESYour RadioShack TRC-237 40-Channel 5-Watt CB Walkie Talkie with Channel 9/19Priority Switch is a portable, two-way radioyou can carry almost

20Note: Do not turn SQUELCH too farclockwise because you might alsocut out weak signals.7. To turn off the TRC-237, turn OFF/VOLUME toward OFF until i

21CB OPERATION TIPSThe following tips will help you get themost enjoyment from your TRC-237.COMMON USES FOR A CB RADIOBusiness Uses• Truck drivers and

22• Camping, fishing, and other sportsare more fun with a walkie talkie.Locate a friend or find out “what’scooking” back at camp.USING COMMON10-CODESC

23Note: Although this table lists the 10-codes’ meanings in the form of a state-ment, they can also be phrased as ques-tions (10-6: Are you busy?, 10-

24CB COURTESY• Wait for a pause in someone else’stransmission before you ask for abreak.• If you do not receive an answer toyour call after a second a

25TROUBLESHOOTINGIf your TRC-237 is not working as itshould, follow these suggestions to see ifyou can eliminate the problem. If you can-not, take it

26MAINTENANCEYour RadioShack TRC-237 40-Channel5-Watt CB Walkie Talkie with Channel 9/19 Priority Switch is an example of supe-rior design and craftsm

27SPECIFICATIONSReceiverFrequency Coverage ... 26.965 – 27.405 MHzSensitivity (Max.) ... 0.5 µV at 10 dB (S+N)/NAdjacent Channel Rejection ...

RadioShackA Division of Tandy CorporationFort Worth, Texas 76102811080960B4A8 Printed in ChinaLimited Ninety-Day WarrantyThis product is warranted by

32-Digit LED Display — lets you easilysee the selected channel number.Automatic Noise Limiter (ANL) Circuit— reduces noise caused by nearby elec-trica

4FCC INFORMATIONThe Federal Communications Commis-sion (FCC) does not require you to havea license to operate this walkie talkie.However, the FCC does

5CONTENTSPowering the CB ... 6Using the POWER Jack andALKALINE/NI-CD Switch ... 6Using Batteries ...

6POWERING THE CBYou can power your TRC-237 from any ofthese sources (none supplied):• Eight AA alkaline batteries with thetwo supplied dummy batteries

7•Set it to ALKALINE before you con-nect an external power source (vehi-cle battery power or AC adapter) tothe POWER jack or while you are us-ing inte

8Cautions:• Always use fresh, or freshly charged,batteries of the required size andrecommended type.• Do not mix old and new batteries,different types

94. Be sure ALKALINE/NI-CD inside thebattery compartment is set to ALKA-LINE. 5. Put eight AA alkaline batteries andthe two supplied dummy batteries,