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Satileksikon Satileksikon Peeter Vilborn vaatajakaart, salvestab uued koodid satelliidilt A antud käskluste põhjal B Audio Subcarrier – heli abikandevsagedus – videospektris asuv sagedus (5-8MHz) heli C ülekandeks D AV – AudioVideo – heli- ja pildisignaale a edastava pistikupesa (SCART) tähistus E Azimuth angle – asimuudi nurk – F AC (alternating current) – vahelduvvool horisontaalne sihinurk antenni juures, mida loetakse kraadides põhjasuunast päripäeva G A-PID (Audio Program Identification) – määrab ära digituuneris audio aadressi AZ-EL (Azimuth-Elevation) – antenni H paigaldusviis, mis lubab antenni suunata nii A/B Switch - A/B lüliti – ühe sisendiga tuuneril horisontaal- kui vertikaaltasandis I saab valida kahe LNB vahel J A/D (Analog/Digital) – seade muundab analoogsignaali digitaalseks K AC3 - Dolby Digitali standard, edastab 5+1 L kanalit kokkupakitult M Actuator - aktuaator – motoriseeritud seade antenni juhtimiseks N AFC (Automatic Frequency Control) – O automaatne sageduse järelhäälestus – b stabiliseerib tuuneri häälestust P AGC (Automatic Gain Control) – automaatne B-MAC (B-Multiplexed Analog Component) – Q võimenduse regulaator – hoiab stabiilset analoogsüsteemis kasutatav telesignaali R signaali tuuneris kui sisendnivoo muutub edastamise ja kodeerimise meetod kus audio on digitaalne S AM (Amplitude Modulation) – amplituudmodulatsioon – kasutatakse nii Bps (bits per second) – bit/sek – digisignaali T teatud analoog- kui digisignaalide edastamisel ülekandekiirus bitti sekundis U Analog Transmission – analoogedastus – Band – sagedusriba – kahe määratud sageduse infosignaal muutub ajas pidevalt, mitte vahel asuv sagedusala V hüppeliselt nagu digiedastusel BW (bandwith) – ribalaius – ülekandekanali W Antenna – seade raadiosignaalide saatmiseks kõrgema ja madalama sageduse vahe, ja/või vastuvõtuks satituuneris tavaliselt 27MHz X Apogee – satelliidi orbiidi kaugeim punkt Beam – kiir – satelliidilt maale suunatud Y signaalivoog (globaal-, regionaal- või täpp-kiir), AU Card (auto update) – nn iseuuenduv mis määrab satelliidi leviala Z 2 Beamwidth – kiirgusnurk - antennist kiirguva saab tasu teenuse kasutajalt A või vastuvõetava signaalivoo nurk (koonus), kus signaali võimsus on maksimaalsest CAM (Conditional Access Module) – teatud B langenud kaks korda kodeeringusüsteemi tuunerisse sisseehitatud moodul, mis vaatajakaardi abil tagab C Bit – bitt – väikseim infohulk, kahendsüsteemis programmi avamise 0 või 1 D CATV (Community Antenna TV/Cable TV) – BER (Bit Error Rate) – vigaste bittide arv ühisantenni või kaabel TV süsteem erinevate E signaalis miljoni databiti kohta, digisignaali (TV,raadio, data) teenuste pakkumiseks kvaliteedi näitaja kliendile kaabli kaudu F Bird – geostatsionaarsel orbiidil paikneva Carrier – kandevsagedus – analoogsignaali G satelliidi üldnimetus slängis (näit. EuroBird, ülekandel kasutatava sagedusriba kesksagedus HotBird) H Cassegrain Dish – profitehnikas kasutatav BNC (Bayone-Neill Connector) – teatud tüüpi eriline kahekordse peegliga satiantenn, I lukustatav (bajonett) koaksiaalpistik tavalisega võrreldes tagab suurema kasuteguri videosignaali ühendamiseks J CCIR (International Radio Consultative Box – telerile lisatav vastuvõtja, mis laiendab Committee) – oli Lääne-Euroopa tele-raadio K esimese võimalusi (näit. digi TV Dreambox) standardeid määrav organisatsioon (nüüd ITU- R), vasukaaluks oli loodud Ida-Euroopa L BS (Broadcasting Satellite) – levisatelliit analoog OIRT M BSS (Broadcast Satellite Service) – Channel Bandwith – kanali ribalaius – levisatelliitidele kinnistatud sagedusriba (10,7- sagedusvahemik, millelt teatud programmi N 12,75 GHz) edastatakse O Byte – bait – kaheksast bitist koosnev Channel ID – kanali identifikaator – iga infokogum, mis moodustab sümboli digikanalit/paketti määrav indeks (näit. 01 0C P 40) Q CI (Common Interface) – tuuneri eriline pesa R välise CI mooduli paigaldamiseks S Clarke Orbit – geostatsionaarsete satelliitide ekvatoriaalne ringorbiit 35780 km kõrgusel T maapinnast, kus tiirlemisperiood on 24 tundi ja satelliit “seisab” taevas samas punktis. U Esmakordselt võttis kasutusele kirjanik ja futuroloog sir Arthur C. Clarke 1945.aastal V c Clone card – kloonkaart – legaalse W C band – ülikõrgsageduslik laineala 3,4-6,425 vaatajakaardi põhjal valmistatud sarnaste GHz, sat TVs (põhiliselt USAs) kasutatav omadustega piraatkaart X sagedusala 3,7-4,2 GHz C/N (Carrier toNoise) – kandevlaine ja Y CA (Conditional Access) - tingimuslik mürasignaali suhe – suurem väärtus tagab juurdepääs – meetod, kus programmivaldaja parema pildi kvaliteedi, mõõdetakse dB Z 3 Coaxial Cable – kesksoonega varjestatud dBi (decibels relative to Isotropic Antenna) – A kaabel laiaribaliste signaalide ülekandeks näitab suunatud antenni suhtelist võimendust võrreldes (isotroopse) ringkiirgajaga B Composite Video - standardne videosignaal sisaldab värvus-ja heledussignaale (PAL, DBS (Direct Broadcast Satellite) – otselevi satel- C SECAM või NTSC süsteemis), tavaliselt tuuneri liit – suurevõimsuseline (iga transponder 120- SCART pesas 200W), reeglina Ku-diapasoonis töötav TV sa- D telliit võimaldab vastuvõttu väikese antenniga Conax – kompanii Telenori teatud kodeeri- (0,6-1m) E misviis, kasutatakse Skandinaaviamaades DTH (direct to home) – otse koju – sama mis F CP (Circular Polarization) – ringpolarisatsioon DBS, termin kasutusel Ameerika Ühendriikides – kasutatakse mõnedel satelliitidel, võib olla RH G (right hand) – päripäevane või LH (left hand) – dBW – mõõtühik, näitab satelliidi signaali vastupäevane - nõuab erilist vastuvõtu pead võimsust võrreldes võimsusega 1W H CRT (Cathode Ray Tube) – kineskoop DC (Direct Current) – alalisvool I (katoodkiirte toru), millele teleris tekib kujutis Declination Offset Angle – ettekaldenurk – J Cryptoworks – kompanii Philipsi teatud parandusnurk mootoriga pööratava polarmount kodeerimisviis, kasutatakse Austrias, Poolas, antenni juures, mis tagab täpsema geostatsio- K Shveitsis jm naarsete satelliitide jälgimise, Eestis keskmiselt 7,5 kraadi L Decoder – dekooder – eraldiseisev seade kodee- M ritud telesignaali avamiseks, kasutati analoog- süsteemis N DES (Digital Encryption Standard) – 56 bitine O krüpeerimise algoritm, kasutati D2-MAC Eurocrypt süsteemis P Deviation – deviatsioon – sagedusmoduleeritud Q (FM) signaali parameeter, näitab sageduse R d ulatust, kus kandesagedus võib muutuda S D2-MAC (D2-Multiplexed Analogue Compo- Diagnostic test – diagnostika test – mõnedes nent) - analoogsüsteemis kasutatav telesignaali satituunerites sisseehitatud programm, või- T edastamise ja kodeerimise levinuim meetod, maldab kontrollida sõlmede kaupa seadme kus audio on digitaalne korrasolekut U DAB (Digital Audio Broadcast) – digitaalse Digitalization – digitaliseerimine – kui analoog- V audio edastamise standard signaal muundatakse digitaalseks W DAC (Digital to Analog Converter) - seade DiSEqC (Digital Satellite Equipment Control- digisignaali muundamiseks analoogseks ler) – standard, mis määrab antenni toitekaablit X pidi erinevate seadmete (lülitid, mootorid jne) dB (decibels) – detsibell – signaalide (pinge, juhtimiseks edastatavate digitaalsete juhtsig- Y voolu, võimsuse) suhteline logaritmiline naalide (22 kHz toonpaketid) parameetrid. mõõtühik Esmakasutusele võeti Eutelsati poolt 1996.a, Z 4 kasutusel on kolm versiooni: DiSEqC V1.0, Näit. kvaliteetne ühemeetrine offsettantenn A DiSEqC V1.2, DiSEqC V2.0 annab Ku-diapasoonis võimendust 10000 korda e 40 dBi, C-diapasoonis vaid 1000 korda e 30 B DiSEqC V1.0 – ühesuunaline süsteem – või- dBi. Võimendus sõltub sagedusest ja antenni maldab saata signaale alt üles kahe, nelja või pindalast (läbimõõdust) C enama antennipea kommuteerimiseks, DNR (Dynamic Noise Reduction) – dünaamili- D DiSEqC V1.2 – sama – lisaks võimaldab teatud ne müratasandi – teatud skeemiline lahendus, tüüpi positsioneeri mootori juhtimist, vähendab helitraktis kõrgemasageduslikku E müra DiSEqC V2.0 – kahesuunaline süsteem – lisaks F eelnevale lubab antenni automaatset Downlink – satelliidil asuv (alla) maale suuna- seadistamist (autofocus), diagnostikat ja tud saatekompleks G komplitseeritud lülitusi Dolby – kompaniis Dolby Laboratories kasutu- H Dish – taldrik, kauss – paraboolantenni, mis sele võetud audiosignaali töötlemise meetod kogub ja suunab signaalid satelliidilt LNBle, parendamaks helikvaliteeti, kasutusel on mit- I nimetus slängis med versioonid: J Dish Aperture – paraboolantenni avaus (läbi- Dolby A, B, C ja Dolby SR analoogsüsteemides, mõõt) – määrab satelliidilt vastuvõetava signaali Dolby Digital/AC3, Dolby Digital Surround K hulga (tugevuse). Suurema läbimõõduga antenn Sound, Dolby Pro Logic, DolbyDigital 5.1 jt kogub rohkem signaalienergiat ja on suurema digisüsteemides L võimendusega Downconverter – USAs kasutatav vastuvõtu- M Dish Beamwith – antenni kiirelaius (suunadia- pead (LNB) tähistav termin - seade, mis muun- gramm)–näitab antenni poolt vastuvõetavat dab ülikõrgsagedusliku satisignaali madalamale N nurka, kus signaalitugevus langeb kaks korda, nn vahesagedusele, mis juhitakse piki kaablit sõltub antenni suurusest ja on suurusjärgus satituunerisse edasiseks töötlemiseks O mõned kraadid DPSC (Digital Pirate Satellite Card) – mitte- P Dish Efficiency – antenni kasutegur – näitab ametlik, piraatne sati digikaart vastuvõtupea poolt kinnipüütud signaali suhet Q antenni pinnale langeva energiaga. Keskfooku- DPSK (Differential Phase Shift Keying) – teatud R sega parabooli kasutegur on keskmiselt 50-60%, modulatsiooni liik, kasutatakse digitaalsete sati- offsettantennil kuni 70%, Cassegrain antennidel saadete juures S kuni 90% DSS (Digital
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