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3

2. At the marked positions, drill a hole slightly smaller than 

the mounting screws. Do not drill into objects behind 
the mounting surface.

3. Secure the mounting bracket to the mounting surface 

with the supplied screws and lockwashers.

4. Attach the CB to the mounting bracket with the supplied 

rubber washers and mounting knobs.

C

ONNECT

 

THE

 M

ICROPHONE

1. Align the holes inside 

the microphone’s plug 
with the pins in the 
microphone jack and 
insert the plug.

2. Turn the plug’s locking 

nut clockwise to secure 
it.

3. Slide the microphone 

onto the holder.

4. To disconnect the microphone, unscrew the locking nut 

and pull the microphone plug toward you. Do not pull 
the microphone cable.

C

ONNECTING

 

AN

 A

NTENNA

To use this CB, you need a mobile or base station antenna. 
There are many types of antennas for CBs. Each type has 
its own benefits, so choose the one that best meets your 
needs. Your local RadioShack store sells a wide variety of 
antennas. If you are using this CB as a base station, see 
“Using the CB as a Base Station” on Page 5.

Mounting Bracket

Mounting 
Knobs

Rubber 
Washers

Screws and Lockwashers

Microphone Plug

Locking 
Nut

Microphone 
Jack

Summary of Contents for TRC521 CB

Page 1: ...rts and so on UP DN Press or hold down to scroll up or down through channels Microphone Mounting Bracket Microphone Holder PTT Push to talk Hold down and talk into the microphone while transmitting Mo...

Page 2: ...ch the CB wires and cables are clear of the vehicle s pedals or other moving parts the CB is not directly in front of heating vents all wires and cables can reach their connection points 1 Use the mou...

Page 3: ...g s locking nut clockwise to secure it 3 Slide the microphone onto the holder 4 To disconnect the microphone unscrew the locking nut and pull the microphone plug toward you Do not pull the microphone...

Page 4: ...it to the ANT jack CONNECTING TO VEHICLE BATTERY POWER 1 Connect the CB s red POWER wire to a terminal in your vehicle s fuse box that has power only when the ignition is in the ACC accessory or ON p...

Page 5: ...ative terminal on the DC power supply 4 Connect the CB s red POWER wire to the positive terminal on the DC power supply 5 Connect the DC power supply to a standard AC outlet CAUTION Most 12 volt DC po...

Page 6: ...se signal strength 8 To tune to a channel rotate CHANNEL on the radio or press UP or DN on the microphone To quickly scroll through channels in either direction hold down UP or DN until you reach the...

Page 7: ...mpleted standing by 10 11 Talking too rapidly 10 12 Visitors present 10 13 Advise Weather Road conditions 10 17 Urgent business 10 18 Anything for us 10 19 Nothing for you Return to base 10 20 My loca...

Page 8: ...nvenience it is a must for both safety and efficiency PERSONAL USE Keep in touch with home while driving to work to the store or to a social activity Let your family know you are tied up in traffic or...

Page 9: ...is exceptionally quiet any noise you hear is probably from an external source in your vehicle such as the alternator another radio or spark plugs You can determine the noise source by turning off the...

Page 10: ...ALERT lights Channel Frequency MHz WX1 162 400 WX2 162 425 WX3 162 450 WX4 162 475 WX5 162 500 WX6 162 525 WX7 162 550 Alert Type You Hear Warning Continuous short beeps Watch Three short beeps and a...

Page 11: ...t When finished the radio returns to the previous station This feature only works in CB mode To activate dual watch press DUAL WATCH DUAL WATCH lights Press DUAL WATCH again to deactivate REPLACING TH...

Page 12: ...t to your local RadioShack store for assistance To locate your nearest RadioShack use the store locator feature on RadioShack s website www radioshack com or call 1 800 The Shack 843 7422 and follow t...

Page 13: ...CB might cause TV or radio interference even when it is operating properly To determine whether your CB is causing the interference turn off your CB If the interference goes away your CB is causing it...

Page 14: ...ve Battery Drain 280 mA to 1500 mA from No Signal to Maximum Output TRANSMITTER Frequency Tolerance 0 0005 Maximum Output Power 4 Watts maximum allowed by FCC Spurious Emission 65 dB or better Transmi...

Page 15: ...ACCESSORIES Depending on how and where you plan to use your CB radio the following accessories can be used with your CB radio for enhanced fuctionality and power Visit your local RadioShack store or g...

Page 16: ...roduct defect during the warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option un less otherwise provided by...

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