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INTRODUCTION 

© 1996 Tandy Corporation.

All Rights Reserved.

RadioShack is a trademark used by Tandy Corporation.

Your RadioShack TRC-501 40-
Channel 2-Way CB Radio is a high
performance CB with the maximum
legally allowable power and innova-
tive styling.

This CB is perfect for recreational,
business, or emergency use. You
can call other people who have CBs
at home, in their vehicles, or at camp
sites. You can also connect optional
equipment to your CB, such as an
external PA speaker, or a DC power
supply and base station antenna to
set up a base station in your home.

Your CB has these features:

PLL (Phase-Locked Loop) Fre-
quency Synthesizer 
—  provides re-
liable and exact tuning using a
precise frequency reference crystal.

Two Ceramic Filters

 

— provide su-

perior selectivity and prevent adja-
cent-channel interference.

Hysteresis Squelch Circuit  

compensates for fading signals and

eliminates signal chopping during re-
ception.

Automatic Noise Limiting (ANL)
Circuit 
—  reduces noise caused by
nearby electrical equipment such as
motors or automotive ignition sys-
tems.

DOWN/UP Channel Selector  

provides maximum convenience

when selecting channels.

LED Display

 

 

lets you easily see

the selected channel number.

Universal Mounting Bracket  

lets you mount your CB securely in

your vehicle or on a table or shelf in
your home.

Note: To use this CB, you need a
mobile or base station antenna. Your
local Radio Shack store has a wide
variety of antennas.

We recommend you record your
CB’s serial number here. The num-
ber is on the CB’s back panel.

Serial Number_________________

21-1701.fm  Page 2  Thursday, August 5, 1999  12:50 PM

Summary of Contents for TRC-501

Page 1: ...Cat No 21 1701 OWNER S MANUAL 40 Channel 2 Way CB Radio Please read before using this equipment TRC 501 21 1701 fm Page 1 Thursday August 5 1999 12 50 PM...

Page 2: ...eference crystal Two Ceramic Filters provide su perior selectivity and prevent adja cent channel interference Hysteresis Squelch Circuit compensates for fading signals and eliminates signal chopping d...

Page 3: ...can lead to illegal operation as defined by Part 95 of FCC Rules Such illegal operation can lead to very serious consequences To be safe and sure Never open your CB s case Never modify your CB Your CB...

Page 4: ...eaker 7 Connecting Power 8 Using Vehicle Battery Power 8 Using the CB as a Base Station 8 Operation 9 Receiving Transmissions and Adjusting Squelch 9 Transmitting 10 CB Operation Tips 10 Common Uses f...

Page 5: ...ever pull on the microphone cable MOUNTING THE TRC 501 The most common mounting location for this CB is under a vehicle s dash board However if you use the TRC 501 as a base station you can place it o...

Page 6: ...the CB to the mounting bracket using the rubber wash ers and mounting knobs CONNECTING AN ANTENNA Caution To prevent damage to your CB you must connect an antenna to the CB before you operate it Selec...

Page 7: ...enna cable to the CB and connect the cable to the AN TENNA jack on the back of the CB Cautions Do not run the cable over sharp edges or moving parts Do not run the cable next to power cables or other...

Page 8: ...nection is for memory back up 3 Connect the CB s black wire to your vehicle battery s negative terminal or a metal part of the vehicle s frame that is not insulated from the frame by a plastic part Us...

Page 9: ...Note If the CB picks up unwanted partial or very weak transmissions turn SQUELCH clockwise to decrease the CB s sensitivity to these signals If you want to listen to a weak or distant station turn SQ...

Page 10: ...customs and courtesies The follow ing tips will help you get the most en joyment from your CB Common Uses for a CB Radio Business Uses Truck drivers and delivery per sonnel can learn road and traffic...

Page 11: ...sist callers with directions information about road condi tions and any other reasonable requests Maximum Range The maximum range and quality of CB transmissions vary depending on these conditions The...

Page 12: ..._ 10 6 I am busy or are you busy 10 7 Out of service 10 8 In service 10 9 Repeat last message 10 10 Negative No 10 11 ____________ in service 10 12 Stand by 10 13 Report ____________ conditions 10 14...

Page 13: ...nnected to the CB The antenna cable is securely connected to both the antenna and the CB Trouble with transmission The CB is turned on The microphone is securely connected to the CB All connectors are...

Page 14: ...t or all of the noise goes away the problem is in your ve hicle s ignition or electrical system Here are a few hints to help you re duce or eliminate such noise Replace old ignition wires with new hig...

Page 15: ...cases and can cause the CB to work improperly Keep the CB away from dust and dirt which can cause premature wear of parts Wipe the CB with a damp cloth occasionally to keep it looking new Do not use...

Page 16: ...005 Follow these steps to check and re place each fuse if necessary 1 Make sure the power source and CB are both turned off 2 To open the fuse holder push the fuse holder ends together then turn eithe...

Page 17: ...to 27 405 MHz Output Power 4 Watts FCC Maximum Type of Modulation AM Double Sideband Full Carrier Modulation Modulation Capability 90 Spurious Emission 60 dB Frequency Tolerance 200 Hz Antenna Impedan...

Page 18: ...18 NOTES 21 1701 fm Page 18 Thursday August 5 1999 12 50 PM...

Page 19: ...19 21 1701 fm Page 19 Thursday August 5 1999 12 50 PM...

Page 20: ...r ranty does not cover transportation costs Nor does it cover a product subjected to mis use or accidental damage EXCEPT AS PROVIDED HEREIN RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRA...

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