theory of operation

FCC ID: PS2VMR2001A

Operational Description

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FCCID_186604

iory or oreration srzoo) Phase Locked Loap(PL L. andVotage Contvued Osclor(¥.CO) The oscifaingfeqsenc ofV.C O.(Q10) iss as chamel fequency + 21.0) Mite in reecvingand (¢hannel fqueney) Mits in trensmitin, andthe chanodspocig is 25 Kite Press Chamel Selstr Stch antseect thechanl namber you vant which willbe inteatedon LCD dalay. Enterthn eletd chaanl t th mirocompnie (01) ‘The countr nurberto be comveyed to the progamniile counter wilbe varsnited wit thesyncronized aerayitom. The countc numbeen t he progamimble ouner willb rched unilthenestnurmber is enord ‘Thcouter narber wlb calculted n thefolowingfommut: wimvrecemio N = ChannelPeequensy+21.6 itz) wnenteansirme Chamel Erequency (Mits) ‘Th oseitaing froquency oFV.CO in ampliie at AMP (0102) and evered o the progaiaablecountr.The propramniblecounter dividethe VCO oscifatns Fequeney with he"N" vateewtich isthe counte nunter The osilaincicuiinside ofUL wl bea enorilaton 045 Mz The ol ccilatngflequeny o4 5 Mte l bedivided and becomest threfirence Requency oreucl ‘The PL L compaesthe oveiting Requency ofV C divideatthe prognmnable couteand threirene iequenc, ancontlshe osilatingequero in sabiiy throuh a ow pasAiter(C3)anavoltcecontolla eapectorciode (DV1) The osilaine tequensy ofV.C0.isanalifed t AMP (49)and to b applndt he recevingsecton ockorthetanumiting secton ec)

1 mansurmme® m "Th chinclfenvencysia i amnlifed at AmoliferOS,06 & 08,and dives RF— POWER Module1C8,In RF;POWER Moduls thechonne!sgnai sbjec t the aitomatis povercontol ind amplifed o 25 W in h highpower madeand 1 Win the loverpowernote "This the ampliied poweroutut s frilyfed o Amema: conmectois pasing though Ancons Fiter Antoia iMeris povided t reecspous Aecuenciesadacentto hechane ol fequeneyand hamoni equercs, respectvely 2 avtownncrowee controt arc) Asigut which is proporionalto heR:outpat poverofRF.POWER Module, deested and esitedbyDetecor baDs The DC utpoperionat the RE—outost powei amnlfed by anplifes 020. 021 & 013.014,and ppled t Contel Creai Q12 ‘Theconbolieitntlsthe power suply valasstoRE.POWER Madate and the vlags o Driver Cheuit 5 thusconvelingt antern otpotpower 18 netionas a pover outputsvtchwchsclas iter 28 W or 1 W 3 mopuraton An audio signl devlopei a micopne i e o the Autio Amplir C3 and anolited The amoltude ftieautisipnai ited to h vlve whichsives he Maximum devation y LD C CieitIC3,Theamifedautio ignenters ModuLtor DVI rough aroltofiter which imis th ccunied banddh, The modabtor usevotage conuel eapactorandmodulites he VC0,Fequency who auto znc a receiver @oo ‘Thsignlinduce on anatonns e anlifed by RF Ampe Obandal undesile Frsqueny component uid the band are clininated n pssin though the vesuge resonace ‘Th ampliia REsignt is ced witthelocl fenuencysignaseothe V.CO.in the fist MiarCievi.02, ho developing fissiznlof2L 6Me Te P sgnlis thenamplfd i the sP Anplited Crout 08

‘Undesiaerequercy signlsinclutinatinecntchanno Gequencios, ts ausa in convesion procesaeremoved byonesuges of ol iter i ‘The 21.6 Mits Sgnalamalifd i i waye apled t h 2" micrleut and mived wit e secon locaasailtorReency of 21. 148 MBte, gevented in the ensul oscilaorcimuit1C2 t ceacea2" t sgralora5s Kite ‘The ds$ Kite t signl i amplfe in th2 B amalforcievt 1C2 Adiscetimarerence signlsincluded n tT ignl n als removed it th connic theccrn ‘has processed IFsignt is dtcind wth dcrimiatorIFT T¥ and denodulatedimo theautiosionat s sourici o) (Isa FMresaive, exessivenose wlb hoat n signalcondiion) A nise anplifer 12 anplifes is componentin theouputs deeloped n the disemintocirout 8 and recfieriades D1 ecy thmtfi outputto ccatea DCeontelsizml The DC consetsignl uns teeleasonie siich 07 o, s ht the nosescamotbe amplifed.Thosnoiseswil.b uporssed t nosgnal condifon n tatherhand.tnoiss wlbredicad when sinatntrs trough h atcons "Thnthe DC cototsigal erated ow th nissignlalso redices and the looronic swich On of allowingth audio signlt enirth acio ampiifer 6: aupio rower auruen Avolume contelrasitorVRS adists autosunal Jeveandthe auciopoweramalfer 1C5 anpliiesthadjuteaucis ignl t sficint pwerleveeapble o drivingthe spostec ;

7 on tx swtcung Nomall,th uanseciveis nRX indbmode o aichttrnsceveto TX mode,a PT.T.awichpovided on the micraphone is pushed, When a tansnitoperaion is avalbl, h nesocomputdeelopa TX erablignaand h sgnali addedwith the ut on ignl in the Losie Ceut UI and theresalant outpa un onTRX Swich017 and i6 «: vournor reout.ktor circum "o assustbleopention ots tmnsceiverif tbtey volase vades(10.8—156 V) ottgereuultos are rovided 1C100 is se o sabilic tin volage farthe PLL cievit menver ceand traninit uitand 1C1 fot V.C0 Oscilitercreit


Document Created: 2001-12-11 14:06:36
Document Modified: 2001-12-11 14:06:36
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