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Radio Shack TRC-446 - page 1
Cat. No. 21- 1574 O WNER’S MANU AL Please read bef ore us ing th is equip ment. TRC-446 Deluxe 4 Watt 40-Chann el Mobile CB Radio with Weather Alert and ACE 21-1574.fm Page 1 Thursday, May 13, 1999 4:03 PM ...
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Radio Shack TRC-446 - page 2
2 FEA TURES Your Radi oShack T RC-446 Delux e 40- Channel Mo bile CB Radio with Weather Alert is a high perform ance C B that also lets you tune to loc al and national weather se rvice broa dcasts. T his CB is perfect for recreati onal, busi ness, o r emergenc y u se. You can call other peo - ple who hav e CBs at h ome, in their ve hi- cles, or at ...
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Radio Shack TRC-446 - page 3
3 Noise Blanking — re duces the noise occasi onall y generat ed by nearby elec- trical motor s or autom otive ignitio n sys- tems. CB/WX/PA Switch — lets you quickl y sele ct among norm al CB operati on, weather m ode, or pu blic add ress m ode. RX/TX Indicator — shows whether the CB is tr ansmitti ng or re ceivin g. S/RF/SW R/CAL Swit ch — ...
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Radio Shack TRC-446 - page 4
4 CONTENTS Installation .... .................... ............ ............. .................... ............. ............. ................ 5 Mounting t he TRC-446 ................... ............. ............. ............. ................... .......... 5 Connectin g the Mic rophone ............ ............. ............. ................... ...
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Radio Shack TRC-446 - page 5
5 INSTALLA TION MOUNTING THE MICR OPHON E HOLD ER Using a Philips screwdr iver and th e sup - pli ed scr ew an d was hers, atta ch th e supplie d micro phone hol der to the CB's left or right s ide, eithe r horizo ntally o r vertic ally ( depend ing on how you p lan to use it). MOUNTING THE TRC-446 The mos t common mounti ng lo cation fo r thi ...
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Radio Shack TRC-446 - page 6
6 4. Using a Philli ps scr ewdriver , attach the m oun ting br ac k et to the m oun t- ing sur f ace w ith the su pplie d large mounting s cre w and star lock wash- ers. 5. Attach the CB to the mou nting brack et using the sup plied r ubber washers and mounti ng kno bs. CONNECTING THE MICROP HONE 1. Align the slot on the top of the microp hone plug ...
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Radio Shack TRC-446 - page 7
7 INSTALLIN G AN ANTENNA Caution : To prevent damage to you r CB, do not attemp t to transmi t without an antenna attach ed. Selecting an Antenna When you d ecide on an antenna and i ts loca tion, cons ider the se po ints: • The ant enna s hould b e pos ition ed as high a s possi ble. • The anten na and the a ntenna cable should be ro uted as f ...
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Radio Shack TRC-446 - page 8
8 USING THE CB AS A BASE STATION Although this CB is designed for mobi le use, you can also use i t as a ba se sta- tion. For ba se-stat ion instal lation, y ou need a regu lated 12 -volt DC powe r sup- ply, such as Cat. No. 22 -504 ava ilable at your lo cal Ra dioSh ack sto re. Caution: Most 12-volt DC powe r sup- plies pl ug into a stand ard AC o ...
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Radio Shack TRC-446 - page 9
9 Pub lic Ad dress Speak er To connec t a PA s peaker t o the CB, us e an 8-ohm speaker c apable o f handl ing 5 or more wat ts of power an d equipp ed with an 1 / 8 -inch connector on the cable. Contact your lo cal Radi oShack sto re for a selecti on of suitable spe akers. Plug into PA S P. See “Using the Pub lic Addres s Functi on” on Pa ge 1 ...
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Radio Shack TRC-446 - page 10
10 STANDING W AVE RATIO GUIDELINES The ide al standi ng wav e ratio (SWR) is 1:1, or a m eter re ading of 1 o n the S WR meter' s top sc ale. This r eading, howev er , can on ly be obt ained u nder lab orator y con- ditions. A SWR ratio of 1 .5:1 to 2:1 i s excellent for most mob ile CB ant enna appli ca- tions. This char t help s you inter pr ...
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Radio Shack TRC-446 - page 11
11 A QUIC K LOOK AT THE CON TR OLS SWR Met e r RF Meter Hand-Held MI C with Channel Up/Do wn Contr ol Vo l u m e / P o wer Switc h Channel 9-NOR- Channel 19 Switch RF Meter/SWR/ Calibrate Switch CB/W eather Alert/Pub- lic Address Switch Noise Blanking On/Off Switc h A udio Cl arity Enhanc er On/Off Switch Channel Di spla y T ransmit/Receive Indicat ...
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Radio Shack TRC-446 - page 12
12 OPERATION Before y ou start us ing your CB, you should know h ow to u se it effec tively and cour teously . “CB O peratio n Tips ” on Page 15 conta ins in formatio n that wil l help you get more enjoyme nt from u sing your C B. T URNING ON THE CB AND RECEIVING T RANSMISSIONS 1. T ur n SQUELCH fully counterclock- wise. 2. Set CH-9/NOR/CH-19 t ...
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Radio Shack TRC-446 - page 13
13 Changing Channels Using the Controls on the Micr ophone To tune to the next higher or lowe r chan - nel, press UP or DO WN on th e micr o- phone. To quic kly chang e channels in e ither di- rection , hold dow n UP or DO WN until you reach th e desir ed channe l. To prevent ac cidenta lly changin g the chann el with UP or DO WN , press LO CK . Pr ...
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Radio Shack TRC-446 - page 14
14 To list en to one of th e seve n availab le weather ch annels , set CB/WX/P A to WX , then rotate WEA THER to choose a c han- nel for your listeni ng area. T he ch annel display and the SWR tu r n off. Readju st OFF/V OLUME if nece ssary . Note: When the CB radi o i s s et t o CB or PA , and y ou ent er a NOAA broadca st ar- ea, the stat e of th ...
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Radio Shack TRC-446 - page 15
15 CB OPERATION TIPS Like mos t activi ties, C B radio user s have cust oms and cou rtesies . The foll owing tips will help you g et the most en joym ent out of you r CB. TYPICAL USES FOR A CB RADIO Business Uses • T ru ck drivers and deliver y per sonn el can lear n roa d and traffic condit ions and get assi stance in loc ating desti- nation s. ...
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Radio Shack TRC-446 - page 16
16 USING COMMON 10-CODES Citizen's ban d oper ators have l argely adopted the follo win g 10 -cod es for stan - dard ques tions and answers. Thes e codes p ermi t fast er and more precise commu nication in no isy ar eas. Th is ta- ble lis ts codes ado pted by the Ass ociat- ed Public -Safety Communicat ions Officers (APCO ). Note: Althou gh th ...
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Radio Shack TRC-446 - page 17
17 MAXIM UM RANG E The maxim um range a nd qual ity of CB transmiss ions v ary de pendin g on t he fol- lowing typica l conditi ons: • The type and quali ty of a ntenna used. • The heigh t of the antenn a's mount - ing locati on — the higher the antenna, the grea ter the signal 's range • The s urrounding ter rain — m oun- tains ...
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Radio Shack TRC-446 - page 18
18 T RO UBLESHOOTING If your CB is not work ing as it should , follow the suggest ions be low to see if you can elimina te the probl em. If the pro blem persis ts, take the CB to your lo cal RadioSha ck store fo r assi stance . Symptom Chec k That: Receptio n diffi culties OFF/V OLUME is tur ned on. CB/WX/P A is set to CB OFF/V OLUME is at a s uffi ...
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Radio Shack TRC-446 - page 19
19 CARE AND MAINTENAN CE Your Ra di oSh ack T RC-446 De lu xe 40 -Chann el M obile CB i s an ex am pl e o f s up e- rior desi gn and craf tsmans hip. The following s uggestio ns will help you ca re for your TRC- 446 so y ou can enjoy i t for yea rs. Keep the CB d ry. If it gets wet, wipe it dry immediate ly. Liquid s migh t contain mineral s that c ...
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Radio Shack TRC-446 - page 20
20 REPLACING THE FUSES The TRC-44 6's 2-a mp fu ses help pr o- tect your CB from power surges and short c ircuit s. • If the red wire's fuse is blown , replace it with a 2- amp, f a st-act ing glass f use, such as C at. No . 270 - 1007. • If the orange wire's fuse is blown , replace it with a 1- amp, f a st-act ing glass f use, s ...
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Radio Shack TRC-446 - page 21
21 SPECIFICA TIONS GENERAL Channels ..... ............. ............. ................... ............. ............. ............. ........ 4 0 Channe ls F requency Range .... ............. ............. ................... .......... 26.965 MHz to 27. 405 MHz P ower Requir ements ............. ........... .. 13.8V DC (12 –16 V olts DC, Negative ...
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Radio Shack TRC-446 - page 22
22 PUBLIC ADDRESS Output P ower ........ ............. ............ .................... ............. .......... 4 .2 W atts (Max imum) Current Drain (a t maximum power) ............. ............. ............. .................... ... 1.2 Amps WEA THER RADIO F r equency Cov erage (MHz) .................. ................... ............. ....... ...
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Radio Shack TRC-446 - page 23
23 NOTES 21-1574.fm Page 23 Thursday, May 13, 1999 4:03 PM ...
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Radio Shack TRC-446 - page 24
RadioShac k A Division of T andy Corporation For t W or th, T e xas 76102 05A99 Printed in T hailand 937485 Limited Ninet y-Day W arranty This produ ct is warranted by Radi oShack against man ufacturing defe cts in material and workm an- ship u nder normal use for ninety (90) days fr om the date of purchase fr om RadioSha ck company- owned stores a ...
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