Isitya seSatellite: yintoni, yintoni na, iintlobo, ukhetho

Inzuzo yokuqala kunye neyona nto ibalulekileyo yokusebenzisa izitya zesathelayithi kukukwazi ukujonga inani elikhulu lamatshaneli kumgangatho ophezulu kwiindawo ezikude kakhulu zelizwe. Kwakhona, iingenelo zokukhetha into ebizwa ngokuba yi-antenna yesitya ibandakanya ukhetho olubanzi lweetshaneli ezahlukeneyo, kodwa emoyeni okanye kwintambo kamabonakude esasaza kuphela into ebonwa luninzi lwababukeli.

Yintoni isitya sesatellite kwaye sisebenza njani

Isitya sikamabonakude sesathelayithi sisixhobo esikhethekileyo esisetyenziselwa ukukwazi ukufumana imiqondiso evela kwisathelayithi. Namhlanje, izixhobo ezinjalo zihlala zifumaneka kubomi bemihla ngemihla, kuba ngoncedo lwesitya se-satellite unokubukela iziteshi zethelevishini kuyo nayiphi na ikona yehlabathi. Wonke umntu unokuthenga isidlo se- satellite TV ngexesha langoku, kodwa into ephambili apha kukwenza ukhetho olufanelekileyo lwemveliso, kuba beza kwiindidi ezahlukeneyo.

Umgaqo wokusebenza kwesitya sesathelayithi kunye nesixhobo se-eriyali yokusasaza umabonakude wesathelayithi

Ukufumana umqondiso kwisitya sesathelayithi kwenzeka kwizigaba ezibini. Okokuqala, umqondiso weTV uyabanjwa kwaye ugxininise kwinqanaba elinye. Kule meko, kuyimfuneko ukuba ibe ne-amplitude enkulu ngokwaneleyo. Ukongezelela, isibonakaliso siqala ukunyuswa kunye nokuqhutyelwa phambili. Ipleyiti yeTV iqulethe izinto eziphambili ezi-2. Ezi ziquka umguquli kunye ne-deflector. Eyokuqala isebenzela ukubonakalisa kunye nokujolisa kwimitha yemitha kwi-frequency ephezulu, kwaye eyesibini iguqula umqondiso wamaza ube yi-voltage eguquguqukayo eqondakalayo kwizixhobo zekhaya. Amanye amacandelo ezitya zesathelayithi zeTV zincedisa. Uluhlu lwabo lubonakalisiwe kwincwadana yemiyalelo.

iipleyiti ze-offset

Izitya zesathelayithi zohlobo lwe-Offset zine-oval deflector. Isibonisi esinjalo senza ukuba, ngokuxhomekeke kwiikhrayitheriya ezithile, ukufumana isignali kwimithombo emibini okanye ngaphezulu. Ngokophononongo lwabasebenzisi, sinokuthi i-wave wave yesitya esinjalo phantsi kweemeko ezifanayo iphantsi kuneemodeli ezijikelezileyo, kuba i-coating ebonakalisayo incinci kwi-oval deflector. Ngenxa yoko, ukuhamba kwesignali efunyenweyo kumguquli nako kuncinci.

Iifokali ezininzi

Izitya zesathelayithi ezigxile kwizinto ezininzi zifumana amaza kwiisathelayithi ezininzi. Kwizixhobo ezinjalo, ngaphezu kwesinye isiguquli sixhonyiwe. Izalathi zibalwa ngokwahlukeneyo. Ngamanye amaxesha babeka i-classic deflector kunye neqela le-resonant reflectors.

Mesh izitya zesathelayithi

Ezi eriyali zikhangeleka njengeegridi ezigobileyo, ekuncanyathiselwe kuzo izixhaso kunye nesiguquli. Uyilo olunjalo lusebenza kwimigaqo emibini ngaxeshanye, lubonisa umqondiso kunye nokuvelisa ngenxa yokwenzeka kwe-resonance. Ngapha koko, ezi zithumela kwaye zifumana izitya zesathelayithi apho i-wave resonance effect isetyenziswa. Iimodeli ezixineneyo zithandwa ukukhulisa amandla omqondiso we-wi-fi. Kukwakho noyilo olubandakanya ii-eriyali ezincinci eziphathwayo ezifakwe kumxhasi kunye nezikhululo ezisezantsi zokufumana umqondiso. Le yifomati yosasazo ye-T2.

Indlela yokukhetha isitya sesatellite esifanelekileyo

Imilinganiselo yee-eriyali ezifumana umqondiso kwisathelayithi inokwahluka. Abaqhubi bosasazo banikezela abasebenzisi phantse iimeko ezifanayo. Abanye ababoneleli, njengaye, umzekelo, MTS , sebenzisa iiyunithi ze-eriyali ezahlukeneyo kwiindawo ezahlukeneyo.
Ngokomgaqo wokusebenza kwenkqubo, kucacile ukuba yeyiphi indima edlalwa yimilinganiselo yezitya zesathelayithi. Okukhona umkhulu umphezulu obonakalisayo we-deflector, kokukhona amandla amaza awaqokelelayo kwaye aqondise kumguquli. Amajelo osasazo lwesathelayithi adla ngokubalwa ngokweeparamitha eziphakathi. Ngaloo ndlela, kwintsimi yolwamkelo olufanelekileyo, umsebenzisi unokufaka isitya seklasiki kunye nobubanzi be-cm 60. Kwiingingqi apho umqondiso uphantsi, kungcono ukusebenzisa i-antenna ene-deflector enobubanzi be-90 cm okanye ngaphezulu.

Ukukhetha i-eriyali ye-Intanethi

Emva kokukhetha umqhubi we-Intanethi we-satellite, kufuneka ukhethe “isitya” esifanelekileyo. Eneneni, kulula. Ukwenza oku, awudingi ukwazi i-physics okanye iifomula, kwaye akukho mfuneko yokubala nantoni na. Abathengisi baya kukwazi ukukhetha i-eriyali efanelekileyo kunye nekiti ye-intanethi ye-satellite.

Ukukhetha i-eriyali ye-TV

Ukuba ufuna ukuthenga isitya sesathelayithi seTV yakho, kufuneka uqwalasele ubungakanani baso. Le parameter ihambelana ngokuthe ngqo kwinzuzo yesixhobo. Ubukhulu bayo, ipharamitha yokuzuza inkulu iya kuba. Kwimeko apho ubukhulu besitya bungaphantsi kobuvunyelwe ukufumana i-transponder oyifunayo, umyalezo othi “akukho mqondiso” uya kubonakala kwisikrini. Umfanekiso uya kuhlukana “kwiikwere”, kwaye kuya kwenzeka okufanayo ukuba i-antenna ayilungiswanga ngokufanelekileyo kwi-satellite. Ukufumana amandla okwamkela umqondiso wesathelayithi ezahlukeneyo, iidiamitha zesitya ezahlukeneyo ziyafuneka (53 dbW – 0.6 m, 48 dbW – 0.8 m, 45 dbW – 1.0 m, 40 dbW – 1.5 m).

Sesiphi isitya sesatellite esingcono ukukhetha kwi-Intanethi kunye nomabonwakude

Ii-eriyali ze-Offset zezona zifanelekileyo ukufumana iTV yesathelayithi kunye ne-Intanethi. Iipleyiti ze-Offset ziyi-asymmetric cutouts ezivela kwi-paraboloid ye-revolution, apho kukho i-irradiator. Ingqwalasela yale elementi ifumaneka ngaphantsi kweziko lejometri ye-antenna ngokwayo. Le ndawo isusa isithunzi kwindawo eluncedo yesondlo se-eriyali, kunye nezithuba zayo zenkxaso. Oku kwandisa isalathisi sokusebenza esiluncedo kunye nendawo yesipili esilinganayo. I-irradiator kuyilo olunjalo luphantsi kunombindi wobunzima besitya. Ngaloo ndlela, kwandisa ukuzinza kwe-antenna kwimimoya yomoya.

Ukukhetha i-eriyali yokupha

Ii-eriyali ezifumana umqondiso kwisathelayithi, njengeenguqulelo zazo ze-analog, zixhomekeke kumaza avela kwiinqaba eziphantsi komhlaba. Ukuba ibuthathaka, ngoko usasazo luya kuba kumgangatho ophantsi. Ngesi sizathu, kuya kufuneka uqwalasele umgama wokuphindaphinda kwaye uthenge ii-amplifiers ezikhethekileyo. Kwakhona, musa ukulibala malunga neemeko zemozulu. Ukuze ugweme iimpazamo, i-antenna yokunikezela kufuneka ikhethwe, kuthathelwa ingqalelo le migaqo ilandelayo:

• uyilo kufuneka lusebenze kwi-frequency range efunyenweyo ye-300 – 3000 MHz;
• i-boom kufuneka ihambelane nomgama kwinqaba ephantsi;
• izikhombisi zamandla kufuneka zilungiswe ukubamba amaza;
• kwindawo evulekileyo okanye yehlathi, iimveliso ezahlukeneyo zithengwa.

Phawula! Ukukhetha i-eriyali enxulumene nobubanzi be-deflector kulula kakhulu. Kukhethwa ukuthenga imveliso kunye nemilinganiselo yegridi elandelayo: ukuba umqhubi uncoma i-90 cm, i-antenna efakwe kwi-1.2 yeemitha iya kunika ukwamkelwa okuhle kakhulu nakwiimeko zemozulu ezimbi.

Indlela yokuxhoma kunye nokumisa isitya sesatellite?

Ukufakela isitya sesatellite ekhaya, uya kufuna ezi zixhobo zilandelayo:

• intambo yokwandisa kwiziseko ezi-3;
• i-puncher okanye i-drill nge-drill ye-diameter efunekayo yokulungisa i-bracket ngama-anchors okanye ngeedowels;
• ama-wrenches angama-13 mm kunye ne-10 mm ngobukhulu (ngokukhethekileyo ezimbini);
• Phillips screwdriver;
• isando;
• iteyiphu yokuncamathelisa okanye izibophelelo zeplastiki.

Xa udibanisa i-antenna, qinisa ngokucophelela iibholiti, ungalibali malunga neewashi. Kufuneka ujije ii – multifeeds ezi-2 kwisibambi sokuguqula . Omnye ujijelwe kwicala lasekunene, owesibini – ngasekhohlo kunye nomguquli. Akufanelekanga ukutsala nzima kakhulu. Kusebenza okufanayo kwi-eriyali yokunyuka ngokwayo.
Usetyenziso oludumileyo lwe-multifeed xa ufaka isitya sesathelayithi kwiisathelayithi ezintathu [/ caption] Isibiyeli kufuneka simiswe eludongeni. Emva koko, kufuneka uxhome i-eriyali ukuze iqondiswe emazantsi okanye kumzantsi-mpuma. Emva koko, kufuneka wolule intambo yokwandisa kwaye udibanise iTV ngokuthe ngqo kwi-tuner okanye umamkeli. Yonke into, esi sisiphelo somcimbi. Ukuqukumbela, sinokuthi iindleko zezitya zesathelayithi ziwa. Kungekudala wonke umntu uya kukwazi ukufumana “ubunewunewu” obunjalo kwaye abukele amajelo amaninzi anokukhetha kuwo. Kumthengi kuphela into efunekayo – ukukhetha imveliso efanelekileyo.