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Radio Shack 21-1620 manual

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  • Page 1

    OWNER’S MANUAL Ca t. N o. 2 1-1 620 TRC-235 2 Watt 3- Channel CB W alkie-Talki e Pl ease r ead b efor e us i ng this equi pme nt. 21-1 62 0. fm Page 1 Thursda y, Au gust 5, 1999 11:16 AM[...]

  • Page 2

    2 FEATURES Your Radi oShack TRC-235 2 Watt 3- Channel CB Wal kie-Talki e is a portabl e, two- way rad io you can c arry almo st any- where. You can use your TRC-235 around the house , in your off ice, or in your car or bo at. You can al so use it on fish ing and cam pi ng trips, or a t your busi ness for super visor y, securit y, or warehouse per- [...]

  • Page 3

    3 Power/Char ging Jac k — l ets yo u po w e r your TRC- 235 fro m an AC or DC power source, so y ou c an u se the TRC-235 wi th- out dr aini ng the batteri es. And, lets you charge ni ckel-c admium batteri es withou t removin g them from t he TRC-2 35. Note : You need eight AA alkal ine batter - ies or ten nickel-c admium rechargeabl e batter ies[...]

  • Page 4

    4 Your TRC-235 might caus e TV or radi o int erference even when it i s operatin g proper ly. To det ermine whet her your TRC-235 is caus ing t he interf erence, turn off your T RC-235. I f t he i nterfer ence goes away, yo ur TRC-235 is c ausing i t. Try to eli m ina te the inter ferenc e by: • Mov ing your TRC- 235 away from th e TV or radi o ?[...]

  • Page 5

    5 CONTEN TS Po we rin g t h e C B ..... ... .. ..... .. ... ..... .. .. ... 6 Using the POWER Jack and ALKA LI N E/N I-C D Sw itc h.. .. ..... ... .. ..... 6 Usi ng Ba tte rie s .... .. ..... .. ... ..... .. ... .... ... 7 T est in g th e B at te ry P ow er ..... .. .. . 10 Recharg ing Ni ckel- Cadmium Ba tter ie s .. ..... ... .. ..... .. ... ....[...]

  • Page 6

    6 POWERING THE CB You can power your TRC-235 from any of these s ources: • Eight AA alkal ine batteri es (not sup- pli ed) with two du m my batt eries (supp lied) • T en rechar geable AA ni ckel- cadm iu m batteries (n ot suppli ed ) • 12-vo lt vehi cle batt ery power us ing a fused power cord (not suppl ied) • Standa rd AC power usin g a p[...]

  • Page 7

    7 •S e t i t t o ALKALINE b ef or e y o u c on- nect a n exter nal p ower sour ce (v ehi- cle bat tery power or AC ada pter) to th e POW ER jack or whil e you ar e us- ing i nter nal ba tteries (alkal ine or re - chargeab le). •S e t i t t o NI – CD only when you ar e connect ing a batt ery c har ger in orde r to ch arge t he ins talled recha[...]

  • Page 8

    8 Cautions : • A lwa ys us e f resh, o r freshl y cha rged , batter ies o f the requi red size and type. • Do not mix o ld and ne w batteries, different types of batteries (stan- dard , alkaline, or recharge able nicke l-cadmium ), or rec hargeable batter i es of dif f erent cap aci ties . Follo w these steps to install the bat teri es. 1. If t[...]

  • Page 9

    9 4. Be sure A LKALI NE/NI – CD insi de the ba tt ery co mp artm ent is s et to ALKA- LIN E . 5. Put eigh t AA alkalin e batterie s and the two supp lied dummy bat teries, o r ten AA nicke l-cadmi um batterie s into the batt ery compartm ent, as indi - cated by t he polar ity symbo ls (+ and –) marked insi de. Note : Bef or e you us e th e T RC[...]

  • Page 10

    10 T e sting the Batt ery Power 1. Tur n on th e TR C -2 3 5 by r ot at i ng OFF/ VOLUM E c lo ck w i se u n t il it cl ick s. 2. Hold down BA TT TE S T . If th e ind ica - tor ligh ts, ther e is enough ba ttery power t o opera te the CB. If th e indi- cator is dim or does not l ight, repl ac e or recharg e the batte ries. Recharging Nickel- Cadmiu[...]

  • Page 11

    11 Foll ow t he se st eps t o ch arge nic kel- cadmium batter ies i n th e TRC-235 . 1. If t he TRC-235 is on, tu rn OFF/VOLUME fu ll y co unt erc lockw i se unti l it cl icks t o tur n it o ff. 2. Set ALKA L IN E/ NI – CD insi de the bat - tery c ompartment to NI – CD (see “U s- ing the Power Jack and Alk aline/NI - CD Swit ch” on Page 6).[...]

  • Page 12

    12 4. When char ging is compl ete, unp lug the bat tery charger’ s plu g from th e AC outl et. Then, di sconnect the bat- ter y charger’s bar rel plug fr om the POWE R jack. Note: You can use an ex terna l char ger (such as C at. No. 23-13 4, n ot s up- plied) to rech arge the nicke l-ca dm i u m batt eries . After r emoving t he batter ies fro[...]

  • Page 13

    13 • W hen you finish using the TRC-2 35, unplug the fused cord f rom t he ci ga- rett e-light er soc ket befor e you dis- co nne ct it fr om yo ur T RC -23 5. 1. If the TRC- 235 is on, turn OFF/VOL - UME fully cou nte rcl ock wis e unt il it cli cks t o t urn i t o f f. 2. Be sure ALKALIN E/NI – CD i nside the batt ery co mpartm ent is set to [...]

  • Page 14

    14 • T o help prevent an el ectrical shor t, unplu g the ad apter f rom th e AC out- let befor e you unpl ug the adapter fro m the TRC-235 . Foll ow thes e steps t o connec t th e TRC- 235 to AC power. 1. Connect the adapter’s 5.5 mm outer diamet er/2. 1 mm inner diamet er bar- rel plug to the adapt er ’s cor d, settin g TIP to + (posit i ve)[...]

  • Page 15

    15 EXTER NAL AN TENNA Your wal kie-tal kie co mes with a tel escop- ing ant enna tha t is ideal for mos t applic a- tions . H owever , the walkie-t alkie’ s EXT ANTENNA ja ck makes it easy t o connec t other types of an tennas, too. Fo r mo bile or base sta tion use, you m ight want to connect an opti onal ex ternal ant enna. Your loca l RadioSha[...]

  • Page 16

    16 • For the bes t per formance when yo u use an ext ernal ant enna, do not exten d the TRC-235’ s tel escopin g anten na. Foll ow the ins tall ation in struct ions sup- pli ed with t he anten na, ro ute th e antenn a cabl e to the TRC-235, then conne ct it t o the EX T ANTENNA ja ck. Cauti ons : • Do n ot run the cable ov er shar p edges or [...]

  • Page 17

    17 OPE RATION Bef ore yo u use you r TRC -23 5, we re com- me nd you read “CB Ope rat io n Ti ps” on Pag e 20, wh ic h conta ins i nfo rmat ion to hel p you us e it ef fecti vel y and co urte ous ly. RECEIVING T RANSMISSIONS AND ADJUSTING SQUE LCH 1. If you di d not con- nect a n exter nal antenna, fully ex- te nd the TRC - 235’ s tel escopi [...]

  • Page 18

    18 3. Turn on the TRC-23 5 by t urning OFF/ VOLUME clock wise unti l you he ar a cli ck and a hissi ng sou nd. No te: Y ou might not he ar a hiss ing sound i f CHANNE L i s set to B or C and you have n’t inst alle d any cr ys- tal s in channel posi tions B or C. 4. Adjust OF F/ VOLU M E to a c om for tabl e li stening l evel. 5. Adjust SQUELCH to[...]

  • Page 19

    19 T RANSMITTING 1. Follo w Steps 1– 5 in “ Receiving Tr ansmissi ons an d Adjus ting Squelch” on Page 17. 2. Hold t he TRC-235 2 to 3 inches f rom your mou th. Hold down PUSH TO TA L K on t he side of the TRC- 235 and speak i n a normal v oice in to the microph one. When yo u fin ish spe aking, release the bu tton. Note : Do not spea k too l[...]

  • Page 20

    20 CB OPERA TI ON TIPS The foll owing tips will help you get th e mos t enj oym ent from your TRC- 235. COMMON USES FOR A CB RADIO Bu siness Use s • T ruck dr iver s and del ivery pe rsonnel can le arn road and tr aff ic conditi ons and get assist ance in l ocati ng desti- nati ons. A walkie- talkie is also goo d com pany on th ose “long hauls [...]

  • Page 21

    21 • Campi ng, fish ing, a nd other sp orts are more fun wi th a w alk ie-talk ie. Locate a f riend or find out “what ’s cookin g” back at camp. USING COMMON 10 - CO DES Citi zen’s band oper ators have lar gely adopted t he 10-codes f or standard ques - tions and answer s. T heir us e permit s fast - er communica tion and bet ter intel li[...]

  • Page 22

    22 Note : Alth ough th is tabl e list s the 10- codes’ meanings i n the form of a stat e- ment , they ca n also b e phr ased as q ues- ti ons ( 10-6: Are you busy?, 10-2 0: W hat is your l ocati on?) . 10- 15 M ess age deli ve red . 10- 16 Repl y to me ssage . 10-17 En route. 10-18 U rgent. 1 0-1 9 Con t a ct __ __ __ __ __ . 10- 2 0 My loc at io[...]

  • Page 23

    23 CB COURTES Y • W ait for a pause in someon e else ’s transmi ssion be fore you ask for a break. • If you do not recei ve an answer to your cal l afte r a seco nd attempt , sign off and wai t seve ral mi nutes b efore tryi ng agai n. • Do not hol d down PUS H TO T AL K when you are not tal king. (Thi s is call ed dead keying .) • Assist[...]

  • Page 24

    24 ADDING CR YST ALS Your TRC-2 35 incl udes two cryst als (tr ans mit and recei ve) i ns tall ed in chan nel posi tion A. The c rys tals let you use t he CB on channel 14. You can add two mor e crys tals in c hannel po siti ons B and C s o you can use any two ot her cha nnels of the 40 allott ed to CBs. However , you must use onl y cry stals speci[...]

  • Page 25

    25 Note : A cr yst al is mar k ed wi th its fr e- quency. Follo w these st eps to ch ange or i nstal l cryst als in you r TRC-235. 1. If t he TRC-23 5 is on, turn OFF/VOL- UME full y co unt erc lo ckwi se u nt il it clic ks to t urn it of f. 2. Remove the b atterie s (i f inst alled). 16 27.1 55 26.70 0 17 27.1 65 26.71 0 18 27.1 75 26.72 0 19 27.1[...]

  • Page 26

    26 3. Set CHANNE L to A , sl ide your thumb under th e rig ht edge of CHANNE L , then car efu lly pull CHANNEL up t o rem ov e it . 4. Use a Phi lli ps s crew driver to remov e the back cover ’ s three scr ews. Cauti on: The BA TT TES T butto n might come o ff of the fr ont of th e TRC-235 when you remov e the front cover . If this h appen s, sim[...]

  • Page 27

    27 6. Insert a new mat ched pa ir of crystal s (send and rece ive) in to the sockets for Channel B or C. The sock ets for the cr ystal s are marked ne xt to Channel A on th e cir - cuit bo ard with X1 (r eceive) and X2 (tra nsmit). Th e channel ’s l etter ( A, B, or C) is mar ked on the circ uit board and on the diag ram below . Importan t: Be su[...]

  • Page 28

    28 T ROUB LES H OOT IN G If y our TRC-235 i s not wor king as it shoul d, follow t hese suggest ions to see if you can el im inate the pr obl em. If yo u can- not, take i t to you r loc al RadioShack stor e for assi sta nce. Symptom Suggesti on W eak, b ad, or no rece p- ti on. Be sure t he TRC-235 is tu r ned on . Be s ure the vo lu me is tur ned [...]

  • Page 29

    29 MAINTENANCE Your Radi oShack TRC-235 2 Watt 3 - Channel CB Wal kie-Talk ie is an exam ple of super ior desi gn and craf t s m anshi p. The foll owing suggest ions wi ll help y ou care for your TRC-235 so you ca n enjoy it fo r years. Keep t he TRC-235 dry. If it gets wet, wipe it dry imm edi- atel y. Li quids might contai n miner als t hat ca n [...]

  • Page 30

    30 SPECIFICATIONS Rec eiver Fr eque nc y C over age . .. 26 .9 65 – 27 .4 05 MH z Su pp lied wit h C h anne l 14 re ceiv e (2 6.67 0 MHz) a nd tr ansmi t (2 7. 125 MHz) c r ystal s in t he Ch anne l A pos iti on Sens itivi ty (M axim um) .... ........ .... ... ...... 0.6 µ V Adjac ent Chann el R ejec tion ....... ... ....... 4 5 dB Sque lch ....[...]

  • Page 31

    31 NOTES 21- 16 20 .fm Pa g e 31 Thur s day , Au gu st 5, 19 99 11 :16 A M[...]

  • Page 32

    RadioSh ack A Divisi on of T andy Corporat ion Fort Wor th, T exas 76102 6A7 Pri nte d in C hi na Lim it ed Nine ty-Day W arr ant y This pr oduct is warra nted b y RadioSha ck a g ainst m anu- factur in g defects in mat erial and wor kmansh ip under no r- mal use fo r ninet y (90 ) d a y s from t he date of purchas e from RadioSh ack c ompan y -own[...]