Page 2 - FEATURES; Your CB has these features:
2 FEATURES Your RadioShack TRC-446 Deluxe 40-Channel Mobile CB Radio with WeatherAlert is a high performance CB that alsolets you tune to local and nationalweather service broadcasts. This CB isperfect for recreational, business, oremergency use. You can call other peo-ple who have CBs at home, in t...
Page 3 - FCC INFORMATION; FCC Rules; • Never modify your CB.
3 Noise Blanking — reduces the noiseoccasionally generated by nearby elec-trical motors or automotive ignition sys-tems. CB/WX/PA Switch — lets you quicklyselect among normal CB operation,weather mode, or public address mode. RX/TX Indicator — shows whether theCB is transmitting or receiving. S/RF/S...
Page 4 - CONTENTS
4 CONTENTS Installation ............................................................................................................... 5 Mounting the TRC-446 ....................................................................................... 5Connecting the Microphone .............................
Page 5 - INSTALLATION
5 INSTALLATION MOUNTING THE MICROPHONE HOLDER Using a Philips screwdriver and the sup-plied screw and washers, attach thesupplied microphone holder to the CB'sleft or right side, either horizontally orvertically (depending on how you plan touse it). MOUNTING THE TRC-446 The most common mounting loca...
Page 8 - External CB Speaker; EXT SP
8 USING THE CB AS A BASE STATION Although this CB is designed for mobileuse, you can also use it as a base sta-tion. For base-station installation, youneed a regulated 12-volt DC power sup-ply, such as Cat. No. 22-504 available atyour local RadioShack store. Caution: Most 12-volt DC power sup-plies ...
Page 9 - Public Address Speaker; UME
9 Public Address Speaker To connect a PA speaker to the CB, usean 8-ohm speaker capable of handling 5or more watts of power and equippedwith an 1 / 8 -inch connector on the cable. Contact your local RadioShack storefor a selection of suitable speakers.Plug into PA SP. See “Using the PublicAddress Fu...
Page 10 - STANDING WAVE RATIO GUIDELINES; Standing Wave Ratio Performance; Ratio
10 STANDING WAVE RATIO GUIDELINES The ideal standing wave ratio (SWR) is 1:1, or a meter reading of 1 on the SWR meter's top scale. This reading, however, can only be obtained under laboratory con-ditions. A SWR ratio of 1.5:1 to 2:1 is excellent for most mobile CB antenna applica-tions. This char t...
Page 11 - A QUICK LOOK AT THE CONTROLS
11 A QUICK LOOK AT THE CONTROLS SWR Meter RF Meter Hand-Held MIC withChannel Up/Down Control Volume /Power Switch Channel 9-NOR-Channel 19 Switch RF Meter/SWR/Calibrate Switch CB/Weather Alert/Pub-lic Address Switch Noise Blanking On/Off Switch Audio Clarity Enhancer On/Off Switch Channel Display Tr...
Page 12 - OPERATION; to turn on
12 OPERATION Before you start using your CB, youshould know how to use it effectivelyand courteously. “CB Operation Tips” onPage 15 contains information that willhelp you get more enjoyment from usingyour CB. TURNING ON THE CB AND RECEIVING TRANSMISSIONS 1. Turn SQUELCH fully counterclock- wise. 2. ...
Page 13 - TRANSMITTING
13 Changing Channels Using the Controls on the Microphone To tune to the next higher or lower chan-nel, press UP or DOWN on the micro- phone. To quickly change channels in either di-rection, hold down UP or DOWN until you reach the desired channel. To prevent accidentally changing thechannel with UP...
Page 14 - Note: When the CB radio is set to; Weather Alert
14 To listen to one of the seven availableweather channels, set CB/WX/PA to WX , then rotate WEATHER to choose a chan- nel for your listening area. The channeldisplay and the SWR turn off. Readjust OFF/VOLUME if necessary. Note: When the CB radio is set to CB or PA , and you enter a NOAA broadcast a...
Page 15 - CB OPERATION TIPS; Business Uses
15 CB OPERATION TIPS Like most activities, CB radio users havecustoms and courtesies. The followingtips will help you get the most enjoymentout of your CB. TYPICAL USES FOR A CB RADIO Business Uses • Truck drivers and delivery personnel can learn road and traffic conditionsand get assistance in loca...
Page 16 - USING COMMON 10-CODES; Code
16 USING COMMON 10-CODES Citizen's band operators have largelyadopted the following 10-codes for stan-dard questions and answers. Thesecodes permit faster and more precisecommunication in noisy areas. This ta-ble lists codes adopted by the Associat-ed Public-Safety CommunicationsOfficers (APCO). Not...
Page 18 - TROUBLESHOOTING; Symptom; RF GAIN; is at a sufficient listening level.
18 TROUBLESHOOTING If your CB is not working as it should, follow the suggestions below to see if you caneliminate the problem. If the problem persists, take the CB to your local RadioShackstore for assistance. Symptom Check That: Reception difficulties OFF/VOLUME is turned on. CB/WX/PA is set to CB...
Page 19 - CARE AND MAINTENANCE
19 CARE AND MAINTENANCE Your RadioShack TRC-446 Deluxe 40-Channel Mobile CB is an example of supe-rior design and craftsmanship. The following suggestions will help you care foryour TRC-446 so you can enjoy it for years. Keep the CB dry. If it gets wet, wipe it dry immediately. Liquids mightcontain ...
Page 20 - REPLACING THE FUSES; If the red wire's fuse is blown; Follow these steps to replace each fuse.
20 REPLACING THE FUSES The TRC-446's 2-amp fuses help pro-tect your CB from power surges andshort circuits. • If the red wire's fuse is blown , replace it with a 2-amp, fast-actingglass fuse, such as Cat. No. 270-1007. • If the orange wire's fuse is blown , replace it with a 1-amp, fast-actingglass ...
Page 21 - SPECIFICATIONS; GENERAL; Inches; RECEIVER; V to 1 mV; TRANSMITTER
21 SPECIFICATIONS GENERAL Channels ................................................................................................. 40 Channels Frequency Range ........................................................... 26.965 MHz to 27.405 MHz Power Requirements ........................ .. 13.8V D...
Page 23 - NOTES
23 NOTES 21-1574.fm Page 23 Thursday, May 13, 1999 4:03 PM
Page 24 - Limited Ninety-Day Warranty
RadioShack A Division of Tandy Corporation Fort Worth, Texas 76102 05A99 Printed in Thailand 937485 Limited Ninety-Day Warranty This product is warranted by RadioShack against manufacturing defects in material and workman-ship under normal use for ninety (90) days from the date of purchase from Radi...
