Radio Shack 20-521 manuale d’uso

Owner’s M anual Cat. No. 20-521 PRO-91 150- Chann el Handheld Trun king Scanne r Pleas e read befor e using thi s equ ipmen t.[...]

2 FEA TURES Your Radi oShack PRO-9 1 150- Channel Handheld Trunki ng Sca nner is one of a new gen era tion of scan- ners de sig ned to t rack M otor ola Type I a nd Ty pe II (such as Smar tnet and Privacy Plus) and hybri d an a- log t runkin g sys tems, whi ch are ext ensivel y u sed in many 800 MHz com m uni catio n syst em s. Tru nk in g co mmu n[...]

3 Five Channel -Stora ge Banks — you can st ore up t o 30 chann els in eac h of 5 dif feren t banks t o gro up ch an- nels so you can more easi ly ide nt if y calls. Five Sca n Li sts — you can store up to 50 trunk i ng IDs in each t runk tra cking bank . Two-Second Scan Delay — delay s scann ing f or abo ut 2 seconds bef ore moving to anot h[...]

4 Flexi ble Antenna with BNC Connector — pr o vi d es excell ent r eception and is desi gned t o help pre vent an- tenna brea kage. Or , you can connect an external an- tenna. Mo n i to r M em o ri es — l e t y o u t em p or a ri l y s t or e up t o 5 frequ encies or IDs. Memory Backup — keeps the fr equencies sto red in memory for an extende[...]

5 We r ecommend you reco rd your scanner ’s ser ial num- ber here . The number is on t he back pan el. Seria l Number: ____ ___________ _____ _______ FCC NOTICE Your s canner might cause radio or TV i nterfer ence even whe n it i s operati ng p roperly. To deter mine wheth- er y our scanner is caus ing the i n terfe rence, turn of f your s canner[...]

6 quir es t ha t sc anners be manuf act ured in such a way as to n ot be eas ily m odifiabl e to pi ck up t hose tran smis- sions . Do not open your scann er's case to make any modifi ca tions that coul d a llow it to pick up tran smis- sions that it i s not l egal to l ist en to. Doing so co uld sub- ject you to legal penal t ies . We encour [...]

7 Sp eci a l Fe atu re s ..... ... .. ..... .. ... .. ..... .. ... .. ..... ... .. ..... .. . 34 De lay ... .. ..... .. ... .. ..... .. ... .. ..... ... .. .. ..... ... .. ..... ... .. .. . 34 T urning Channel -Storage Banks On and Off . .. 34 Locki ng O ut Chann els .... . . ... . ....... .... . . ... . ....... . ... 35 Pri o rity . .. .. ... ....[...]

8 Frequency Convers io n 63 T roubl eshooti ng 64 Re se tti ng th e S ca n ner .... ..... ... .. .. ..... ... .. ... ..... .. . 6 7 Ca r e a n d Ma in t ena n c e .. .. ... .. ... .. ... .. .. ... .. ... .. ... .. ... .. . 6 8 Sp ec ific ation s . ..... ... ..... .... ..... ... ..... .... ... ..... ..... .. ..... . 6 9[...]

9 PRE P A RA T ION POWER SOURCES You can po wer y our scann er f rom any of thre e sou rces: • Inte r nal bat t eri es ( not supp l ied) • Standar d AC p ower (us ing an o ptiona l AC adapt er) • V ehicle bat t e ry power (us ing an optional D C adapte r) Using Inte rnal Batteries You can power y our sc anner using four AA b at ter i e s. For[...]

10 3. If yo u are insta lling al kaline b atterie s, us e a poi nted obje ct suc h as a p encil to set ALKALI NE JAC K NI - CD in sid e the c om p ar tmen t t o ALKA LINE . Or , if you are inst alling nicke l-cadmium bat teri es, set i t to NI -CD . Warni ng: N e ver set ALKALINE JACK NI-C D to NI- C D if you ar e inst al li ng non -r echargea ble [...]

11 If BATT .Lo fla shes and the scann er beeps ever y 15 seconds , replace (standar d/alkal ine) or recharge (r e- charge able nic kel-cadmiu m) the batteri es. Cautio n: Al wa ys dispose of old bat teri es promptl y and proper ly. Do not bury or burn t hem . Charging Ni c kel-Cadmium Batterie s The s canner has a built- in c i r cuit that l ets yo[...]

12 Importa nt : At the end of a recharge able batter y’s use- ful l ife, i t mus t be recy cled or di sposed of properly. Contact your local , count y, or st ate hazar dous waste manage ment author ities for i nformat ion on recyc l ing or dispos al programs i n your area. Som e opti ons that might be ava i labl e are: munici pal cur b-sid e coll[...]

13 1. T urn V OLUM E/OF F co untercloc kwise unti l it cli cks to mak e sure the power is t urne d of f. 2. Plug the adap ter’s 3.4 mm outside dia m eter /1.3 mm in side di ameter barrel pl ug int o yo ur scanne r ’s POW ER jack. 3. Plug t he other end of t he adapter into a standard AC outlet. If r echarg eable batt er ies are i nstall ed and [...]

14 1. Tu r n VO LUME /OFF counte rcloc kwise unt i l it cli cks to make sure the power is t urned of f. 2. Set the adapter’ s vol tage swit ch to 9V . 3. Connect the 3.4 mm outer diamet er/1.3 mm i nner diamet er tip to t he ada pt er cor d, match ing TIP to –. 4. Plug the adapt er ’ s barr el plug into you r scanner ’ s POW ER j ack . 5. P[...]

15 CONNECTING THE ANTENNA Foll ow th ese steps to at t ach t he supplied f lexi ble anten- na to the con nector on the top of your scanner. 1. Alig n t he slots ar ound the ant enna’s c onnector wi th the tab s on the scanner’ s BNC connector . 2. Slid e the an tenna’s connector down over th e scan- ner’s c onnec tor and r otate the antenna[...]

16 CONNECTING AN EARPHO NE/ HEADPHONES For pri vate l isten ing, yo u can plug an earp hone or mono headp hones (such as Cat . No. 33-178 or 20- 210) in t o the jack on top of you r scanner . This au to- mati ca lly discon nects the int ernal spe aker . Listening Safely To prot ect your hear ing, f oll ow these gui delines wh en you use an earpho n[...]

17 CONNECTING AN EXTENSION SPEAKER In a noi sy are a, a n ext ension speak er (such as Cat . No. 21-549) , posit ioned i n the r i g ht pla ce, migh t provi de mo re co mfor tab le li ste ning. Plug t he speak er c abl e’s 1 / 8 -i nc h mini -plug i nto your sc anner ’ s jack. A TT ACHING THE BEL T CLIP You can attach t he supp lied belt clip t[...]

18 ABOUT YOUR SCANNE R Once you understand a few s impl e terms we use in t his manual an d familia r ize y ourself wit h your scanner ’s featu r es, you can put the sca nner to work for you. You simply determ in e the type of communi cations you want to recei ve , then set the scanner to scan t hose commu- nicat i ons. A freque ncy is the tunin [...]

19 A LOOK A T THE KEYP AD Your sc anner’s keys might seem conf using at f irst , but thi s infor mation sh ould hel p you underst and ea ch key’s funct ion. HOLD — hol ds the frequen cy sear ch; hol ds on t he cur - rent ID in the tru nk tracki ng mode. SCAN — scans thro ugh the s tored chan nels. MAN ( manua l) — stops scanni ng and l e [...]

20 DELA Y — programs a 2-second del ay for the select ed channel , a l i mit search, o r each ser vi ce s can; progr ams a 5-second delay whil e tr unk tr acking. t — searche s down throu gh a selec ted fre quency range dur ing a freq uency sear ch; select s op tions dur- ing p rogram opera tion; c hanges t he ID loc at ion number while trun k [...]

21 (trun king channe l acti vity bar s) — each repres ents a recei ved trunk i ng f requency or a data frequency while trun k tracki ng (see “Chann el Acti vity Bar s” on Page 47) . -1- — appears when t he weather service ba nd is se- lect ed. -2- — appea r s when the amat eur radio ser vice band is s ele c ted . -3- — appears when t he[...]

22 MON — appea r s duri ng se arch modes or when you select a moni tor memor y. The num ber to t he ri ght of this indic ator s hows the curr ent m onito r memory nu m - ber. MAN — appears when you press MAN . PGM — appear s w hil e you store a frequen cy into a channel , while you en ter a fre quency r ange du ring a limi t sear ch, or when [...]

23 Monitor Memories The scanne r also has 5 tempo rary memor y locat ions call ed mon itor memories. You can u se these monitor memor ies to t emporari ly st or e fr equencies whi le you decid e whether t o stor e them int o a chann el. Th is i s handy f or quickl y stori ng an ac tive fr equency wh en you searc h through an enti r e band (see “S[...]

24 OPE RA TI ON TURNING ON THE SCANNE R AND SETTING SQUELCH Note: Make s ure the sc anner’s a ntenna i s conn ected befor e you tur n it o n. 1. Tu r n SQUE LCH full y count erclockwi se. 2. Tu r n VO L UME/O FF clockwi se until it cl icks and you hear a hissin g sound. 3. Press MAN ( manual) to stop th e scanner from scanni ng, turn SQUELCH clo [...]

25 STORING KNOWN FREQUENCI ES INTO CHANNELS Good refe rences for ac t ive f requenci es are Ra- dioShac k's “Beyon d Police Call, ” “Aer onautical Fre- quency Di rectory, ” and “Mar i time Freque ncy Directo r y.” We up date these directo ries ever y year, so be su re to get a current copy. Foll ow thes e steps to store frequenc i [...]

26 • Y our s canner a utomatical ly r ounds the ent ered frequ ency t o the neares t valid f reque ncy . For example, if you ent er a f r eq uency of 151.473, your scan ner accept s it as 151.475. • Pre ss DELA Y if you want th e scanner t o pause 2 seconds af t e r a tr ans m iss i on ends bef ore it pro- ceeds to t he next channel (see “Del[...]

27 2. Enter the frequ ency that is the lo w er limi t of the range you want to search (i ncludi ng the deci mal point ), the n press E . 3. Press LIMI T . Hi and 956.000 MHz appear . 4. Enter the fre quency t hat is t he upper l imit o f the range you want to search (i ncludi ng the deci mal point ), the n press E again. 5. Press t t o search from [...]

28 Notes: • If you wan t to start the searc h f rom a fre quency alrea dy stored in one of your scan ner ’s chan- nels, press MA N or PRO G , us e the num ber key s to ente r the chan nel number , then press MA N or PROG agai n. • If yo u enter an i nvali d freq uency , t he scanner displ ays Error . S im p ly re pe a t th is st e p. 3. Press[...]

29 When t he scanner stops on a transmi ssion, qui ckly press either: • HOLD to stop sear ching so you c an liste n to the transm iss ion. HO LD appears. • MON/CLEAR to store t he displaye d fr equency in t o the cur r ent mo nit or memory . T o rele ase hold a nd continu e searchi ng, pr ess HOLD or hold down t or s for at least 1 second. Or ,[...]

30 Notes: • If y ou marked al l fre quencies to be sk i p ped wit hin the sear ch range, t he scanner beeps 3 times a nd does no t search. • If you prog ram more tha n 20 frequenci es to skip, each n ew fr equency replaces one y ou al r ead y store d, starti ng f rom the f ir st frequency you stor ed. • Pre ss t or s to selec t a skipped freq[...]

31 3. Press MO N/CL EAR and ente r the number of the monito r memory that cont ains th e f requen cy you want to st ore . 4. Press E . Th e scanner stores t he freque ncy into t he selec ted ch annel. SCANNING THE ST ORED CHANNELS To be gin s canning channels , press SCAN . Th e scanner scans t hrough all non-lo cked channels i n the ac tivated ban[...]

32 Or, i f y our scanner is scanning an d stops at the desir ed channel , press MAN one ti me. (Pre ssing MA N additi on- al ti m es caus es your sca nner to step t hrough the chan- nels. ) To resum e auto mati c scan ning, pr ess SCAN .[...]

33 SPEC IAL F EA TURES DELAY Many agencie s use a two- way radio system that might have a period o f 2 or m ore seconds between a query and a reply . To keep from missing a repl y on a speci fic ch annel, you can pro gram a 2-s econ d d elay int o any channel or fre quency. The scanner cont inues t o moni- tor t he channel frequency for 2 sec onds [...]

34 The scann er scans al l the c hannels wit hin t he dis- played banks that are not l ocked out (see “ Locki ng Out Channels ” ). Notes: • Y ou can manual ly select any ch annel withi n a bank, even if that ba nk is t ur ned off. • Y ou ca nnot turn off al l banks. One bank must always be act ive. LOCKING OUT CHANNELS You can inc r ea se t[...]

35 1. Press PRO G . 2. Enter t he channel number you want to select as the pri orit y channel , then pre ss P RIO RITY . appears to the right of the channel n um ber . 3. Repeat St eps 1 and 2 f or the channel in each bank you wan t to pr ogram as a pri ority channe l. To revi ew all priori ty cha nnels, pres s PROG , then re- peated ly p ress PR I[...]

36 USING THE KEYLOCK Once you p rogram yo ur scann er, you can prote ct it from ac cidental progr am changes by tur ning on t he keyloc k f e ature. When locked, t he onl y controls that operat e ar e SCAN , MAN , KEYLOCK , VOLU ME/OF F , and SQUE LCH . Note : The keylo ck does not prevent the scanne r from scanni ng channels. To tur n on the key l[...]

37 TURNING THE KEY TONE OF F/ON To turn of f t he key tone, follow t hese st eps. 1. T urn off the scanner . 2. While hol ding down L- OUT/S/ S, tur n on the scan- ner . OFF bEEP appear s. To tur n the key tone back on, repea t thes e steps . on bEEP appears. TURNING THE BA TTER Y SA VE FUNCTION OFF/ON To save ba ttery power when a channel i s manu[...]

38 SKIPPING DATA SIGNALS You can se t the scann er so it s kips n onmodulated or data si gnals (suc h as fax or modem tra nsmissions) durin g a se arch o r scan . Note: Si nce dat a signals a re not g enerally found i n the air band , this f eat ur e doe s not wor k in t he ai r band. To turn on t he data ski p featu re, be sure the priorit y featu[...]

39 T RUNK T RACKING Your sc anner is des igned to t rack tran smissions o n Mo- toro l a Type I , Typ e II, a nd hybri d analog t r u nking sy s- tems, which ar e extensi vely used in 800 M Hz communi cati ons. Remem ber t hese importa nt p oints when t racking t ransmi ssions : • Y our sca nner m onito rs T ype II syst ems by de fault. However ,[...]

40 The fl eets m ight be the pol ice de par tm ent, the fi re de- partment , utilit ies, and city admi nistr atio n. The pol ice mig ht deci de t o furth er d ivide its f l ee t int o subfl eets such as dispatch, tactica l oper ations , dete ctive s, nor th, south, east and west sid e patrol s, and superv isors. All the avai lable pol ice radios wo[...]

41 SETTING SQUELCH FOR THE T RUNK T RA CKING MODE Your s canner’s squelch se t ti ng is aut omatically adjust- ed duri ng t runk t r ac king, which means it is not nece s- sary to manuall y adjust squelch whi le t racki ng trunked tran smissions. However, the squel ch setti ng can af f e ct how fas t your sc anner acqui r es the da t a channel, a[...]

42 Before scanni ng a t runked sys tem’s t ra nsmissions, you must s tore th e trunked system ’s f requenc ies in one of the banks i n your scanne r by f oll owing these ste ps. 1. Press PROG then TRUNK . TRUNK appear s a nd one or more bank num ber s f las h. 2. Select th e bank you want to store t he tru nked sys- tem’ s freque ncies in by [...]

43 6. Press SRC to begin se archin g for the t r un k’s data c hannel (the chann el that controls the tr unk). SEARCH flas hes as the scanner searches for the data chan nel. While the s c anne r loo ks through the f requencie s, you see th em on the disp lay . When t he scanner fin ds the data chan nel, it begins t runk tra cking. SCANNING A T RU[...]

44 Hint: While scann ing, you wil l not know exactl y who the IDs ar e ass igned to until you lis ten awhil e or unt il you loc at e ID lists i n fr equency guides or on inter net site s such as www.tr unkscan ner.com . Wi thin a few minutes , you can usuall y figu re out if what you are lis- tenin g to is a pol ice, fir e, or emergency m edical 2-[...]

45 Locking Out I D s As with conv ention al scanni ng, it is possi ble to lock out unwante d t raffic . This is part icular ly important i n trun k- ed syst ems because si gnals yo u cannot lis t en to ( s uch as water meters, door alarms, traf fic si gnals , and en- crypt ed signals ) are as signed ID s just lik e other user s. You can have up to [...]

46 Using T runk T racking Scan Delay Many t runked systems h ave a per iod of 2 or more sec- onds bet ween a query and a re ply. You can pr ogram a 5-secon d delay to h ol d on an ID f or 5 seconds to wait for a reply. The sca nner con tinues to m onit or th e fre- quen cy for 5 s econds after the trans m iss i on stops be- fore re suming scann i n[...]

47 CHANNEL ACTIVITY BARS Your scan ner has 20 chan nel activi ty indicato rs (bar s) which show the act ivity taki ng place on a trunke d sys- tem. Y ou can see how many fre quencies ar e being used and gen erally moni t or how much c ommunication tra ffi c is oc c ur ri n g. Each f requency y ou st ore i n a trun king bank has a cor - respon ding [...]

48 SCAN LISTS When y ou progr am trunked f r e quencies into a ban k (see “St orin g Trunk ed Frequencie s” on Page 4 1) , your scanner sets up 5 scan li sts in to which y ou can stor e your favorit e IDs. Each list c an cont ain u p to 10 I Ds, so you ca n store a t otal of 50 IDs fo r each tr unk trac king bank ( 250 IDs if you use all ba nks[...]

49 Or , t o enter a T ype I ID: a. Use the number ke ys to e nter the block n umber and flee t number , then press • . b. Enter the sub fleet number , then pres s E . Note: T o clea r a m istak e while enteri ng an I D, press 0 then E , t hen st ar t over at Step 1. 5. Repeate dl y press PROG or s to selec t th e next scan l ist l ocat ion you wa[...]

50 SCANNING THE SCAN LIS TS Pre ss S CAN to begin scanni ng the l ists you hav e store d. Note: I f you have n ot stored any IDs, SCAN scr olls on the dis pl a y, but your scann er does not st op on an ac- tive conversat ion. To rem ove a s can list from act ive scanni ng, use t he number keys to ent er th e scan list ’s numbe r. The sc an lis t [...]

51 4. Press again. 5. Repeate dl y press s or t to sel ect th e name of the map you want (such as E1P7 ) . The prepr o- gramm ed fl eet map app ears . 6. Press E , th en SRC. The scann er then se ar c hes for tran smissions usi ng t h e pres et map you chose. Note: When t he scanner sea rch es for tr ansmiss ions, you see Type I fle et and subfleet[...]

52 When a Type I system is desi gned, the addr ess inf or- mation f or all its use r IDs is di vided i nto 8 equal -siz e blocks , number ed 0–7, and each block is ass i gned a size cod e. When you set up your scanner to track a Type I sys tem, you must choose a size c ode for eac h block. When you have ch osen a size code f or all 8 blocks , you[...]

53 The si ze cod es se lect ed b y a Typ e I sy stem des igner depend o n the spe cific n eeds of the system's u sers. Some organiz ation s might want many subfl eets with only a f e w radios each, wh i le an other organ i z ation might want only a few subfl eet s, with many radios each. To scan Ty pe I system s, you m ust sel ect or pro gram [...]

54 E1P4 E1P5 E1 P6 Bloc k Si z e Code Block Size Code Bl ock Si ze Code 0S 1 2 0 S 4 0S 3 1 (S12 ) 1 S4 1 S10 2 S4 2 S12 2 S4 3S 4 3 ( S 1 2 ) 3S 4 4S 4 4 S 4 4S 1 2 5 S4 5 S4 5 (S1 2) 6S 4 6 S 4 6S 1 2 7 S4 7 S4 7 (S1 2) E1P7 E1P8 E1 P9 Bloc k Si z e Code Block Size Code Bl ock Si ze Code 0S 1 0 0 S 1 0S 4 1S 1 0 1 S 1 1S 4 2S 1 1 2 S 2 2S 0 3S 4 [...]

55 Selectin g a Preset Fle et Map 1. Set t he scanner fo r conven tional sc anning, pr ess PROG , t hen pr ess TRUNK . 2. Select the bank wher e you want to sto re t he pr eset fle et map by pre ssing a number key . 3. Press . 4. Repeate dl y press s or t to s elect E1 . Then, when E1 flash es, press E . E1P1 3 E 1P14 Block Size Code Bl ock Size Co[...]

56 9. Press SRC . The scanne r exits t he tr unking p ro- gramming m ode, tu nes the data chann el , th en begins to sear ch using the map you progr ammed. Note: I f you sel ect size code S -12, S-13 , or S-14, these restrictions a pply: • S-1 2 can only b e a ssigned to B locks 0, 2, 4, or 6. • S-1 3 can only b e a ssigned to B locks 0 and 4. [...]

57 A GENERAL GUIDE TO SCAN NING Recepti on of the f r eq uencies c overed by your scan ner is mai nly “line- of -sight . ” That means you usual ly cann ot hear st at ions that are beyo nd the horizon. GUIDE TO FREQUENCIES National Weathe r Frequencies Canadian W e ather Frequencie s Note: These f requencies are no t pr eprogr amm ed in the weat[...]

58 GUIDE TO THE ACTION B ANDS T ypical Band Us age Prim ar y U s age As a general ru le, most of t he radio act ivity is concen- trat ed on the followi ng f requencies : VHF Band VHF Band Low Ra ng e 29 .00 –5 0. 00 M Hz 6-M e ter Am ate ur 50 .00 –5 4. 00 MH z U. S. Gove rnme nt 137. 00–1 44 .00 MHz 2-M e ter Am ate ur 144 .0 0– 14 8. 00 M[...]

59 UHF Band Note: Remot e control st ations and mobi le units opera te at 5 M Hz hi gher than t he ir as sociated base st ati ons and rela y r epeate r units. BAND ALLOCA TION To help deci de which fr equency ra nges t o s can, use the fol lowing l isting of t he typic al serv ices t hat use th e f re- quenci es your scanne r receives . Th ese f r [...]

60 ROAD . . . . . . . . . . . . . . . . . . . Ro ad & Hi gh way M ain ten anc e RTV . . . . . . . . . . . . . . . . . Rad io/TV R emo te Bro ad cast Pi cku p T AXI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T axi S erv ices TE LB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M obil e T e leph one (A ircr a[...]

61 152 .0075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M ED 152 .030– 152. 240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TEL B 152 .270– 152. 480 . . . . . . . . . . . . . . . . . . . . . IN D, T A XI, BUS 152 .510– 152. 840 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TEL B 152 .[...]

62 462 .937 5–46 3.187 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . ME D 463 .200 –467 .925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BU S FM-T V Au dio Broa dcas t, UH F Wi de Ban d (47 0–51 2 MHz ) (C hann els 14 th roug h 69 i n 6 MHz st eps) 475 .750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

63 TROUBLES HOOTING If you have pr oblems, he re are s ome suggest ions that m i gh t h e lp . I f they do n ot, take yo ur s can ner to you r l o ca l RadioShack store for assistance . PRO BLE M PO SSI BLE CAUSE REM EDY Sc anne r is o n but wi ll not sc an. SQ UEL CH is not adju sted c or- re ct ly . Turn SQUEL CH clock wis e. Onl y on e cha nnel [...]

64 PROBLE M POSSI BLE CAUSE RE ME DY An ant enn a is no t co nn ec te d or co nn ec te d in co r - rectly . M ake sure an a nt enna is con - nect ed to th e s ca nner . Error appe ars . Pr ogram ming error . R e-e nt er t he fre - qu ency c or rec tl y , incl ud in g t he de ci- mal po in t. Th e sc an n er loc ks o n f req uen- cies th at h ave an[...]

65 Sc anne r wi ll not st op w h ile s ca n- nin g a scan list. No I Ds hav e be en s tor ed . Sto r e one or more IDs (s ee “ Scan List s” on Pa ge 4 8. The I Ds yo u hav e st or ed a r e no t acti ve. S ca n an oth er tra nsmis sion . Sc anne r wi ll not ac q uir e a dat a c hanne l. SQ UELC H is not corr ect ly a djus ted for tru nk tr acki [...]

66 RESETTING THE SCANNER If t he sc anner’s di sp lay l ock s up or does not wor k pro p- erly , you might nee d to reset t he scan ner. Caution : This pr ocedure cl ears all the i nfor m ati on you have st ored into the scann er. Befor e you reset t he scanner , try tu rni ng it of f and on to see if i t beg i ns work - ing pr operly. Reset t he[...]

67 CARE AN D MAINTENANCE Your Radi oShack PRO-91 150- Channel Handhel d Trunki ng Scanner is an exam pl e of s uperior d esign and craf t s manshi p. The followi ng sugge stion s wi ll help you ca re fo r your s canner so you can e njo y it fo r ye ars. Keep th e scanner d ry. If it gets wet, wipe it dr y immed iatel y. Li quids can cont ain minera[...]

68 SPECIFIC A TIONS Frequenc y C over age: .... . 29–54 MHz ( in 5 kHz st eps) 108–13 6.975 MHz (in 12.5 kHz st eps) 137–174 MHz ( in 5 kHz st eps) 406–512 MHz ( in 12. 5 kHz st eps) 806.000 0–823.9375 MHz ( in 12. 5 kHz st eps) 851.000 0–868.9875 MHz ( in 12. 5 kHz st eps) 896.1 12 5–956 .0000 MHz (in 12.5 kHz st eps) Monitor Channel[...]

69 Power Req ui rement : 4 AA Alkali ne Bat t eri es ( 6.0 VDC), or 4 AA Rec hargeable Ni -Cd Bat teries (4 . 8 VDC), or AC Ad apt er (C a t. N o. 2 7 3-1 665 ), or DC Adapt er (Cat. No. 270-1560) Current Drai n: Squelch ed . .. ....... ... .... ... ..... . ... ... ..... ....... . .. . .. 70 mA Full Output . ...... . ... . . ... ... .. . .. . ... .[...]

70 NOTES[...]

71[...]

RadioShack A Divisi on of T andy Corpora t ion Fo rt Wort h, T exas 76102 UB ZZ0 1274Z Z 3A8 Print ed in the Philippi nes Lim it ed O ne-Y ear W arrant y Thi s produc t i s warrant ed b y Rad i oShac k a g ains t manufacturin g de- fects in materi al and workmans hi p under nor mal use for one (1) y ear from t he date of p urchase from RadioSha ck [...]