Yintoni esinokuyenza xa umntu ophinda-phinda ukuzivuselela?

Yintoni isignali yefowuni ephindayo ukuzivuselela?

Ukuzihlaziya kuthetha ukuba isignali eyandisiweyo yiphindaphinda ingena ekupheleni kokufumana ukukhulisa okwesibini, okubangela umsebenzi we-amplifier wamandla kwimeko egcweleyo.I-self-excitation ephindaphindayo ibonakala kuphela kwi-wireless repeater.Ngenxa yokuba i-fiber optical repeater idityaniswe nesiginali yesiseko sesikhululo ngokuthe ngqo, ngoko ke i-fiber optical repeater ayiyi kuvelisa ukuzihlaziya, cinga ukuba i-fiber optical repeater inomqondiso.Kodwa ukuba awukwazi ukwenza umnxeba okanye umnxeba ongekho mgangathweni kwifiber optical repeater.Kwimeko apho, kuyacetyiswa ukuba ujonge i-uplink kunye ne-downlink attenuation kunye ne-repeater hardware.

Yintoni ukuzivuselela:

Ngokomzekelo, utshintsho lweqondo lokushisa lubangela ukuba utshintsho lwenzuzo ye-amplifier, i-isolations, kunye ne-base station parameters;ke, kuya kubangela ukwanda kwegalelo lophindayo.Xa ulungisa isiphindaphindi, nceda ungalandeli ngokugqithisileyo ukukhulisa kwaye uhlengahlengise inzuzo kakhulu.Kufuneka ushiye indawo yokuyenza.Kubantu abaphindayo abaneerekhodi eziphosakeleyo, kulucelomngeni ukufumanisa ukuzihlaziya kwijelo elingasemva lomntu ophindayo.Ngenxa yokuba itshaneli yangaphambili yophindaphindo ihlala inegalelo lomqondiso kwisikhululo esisisiseko, ukuba umntu ophindayo uyazonwabisa, i-amplifier yangaphambili inokugcwala kakhulu.Abanye abaphindayo bafumanisa ukuba iamplifier igcwele kakhulu kathathu.Baza kucima umntu ophindayo ngoko nangoko kwaye banike ingxelo ecacileyo yokungaphumeleli.Kulula ukuyifumana.Nangona kunjalo, isignali yegalelo yeamplifier yesitishi esibuyela umva iyahluka kakhulu.I-transmitter yefowuni yeselula ayisoloko ikwimeko yokudlulisa, kwaye umgama awuhlali ufana.

Kwezinye iimeko, iya kubangela ukuba iamplifier yetshaneli ebuyela umva ibe yimincili.I-amplifier ibuyela kwisiqhelo ngenxa yokulahlekelwa ngokukhawuleza kwegalelo.I-self-excitation ye-amplifier yeshaneli ebuyela umva ayikho nje imizuzwana embalwa emfutshane kwaye ingaqhelekanga.Ngamanye amaxesha ayizivusi kube kanye kangangeeyure ezininzi, nto leyo enzima kakhulu ukulungisa ingxaki.

Ukuba iphinda-phinda ifakiwe, ifowuni ephathwayo inokuphendula ifowuni yendawo ukuba ifowuni ephathwayo inxibelelana nefowuni yasekhaya.Sekunjalo, ifowuni yasekuhlaleni iyacinywa xa uphendula ifowuni ephathwayo, yaye umgangatho wesandi ungaphantsi.Isenokubangelwa kukuzivuselela kweamplifier yetshaneli ebuyela umva yophinda-phindo.

Xa i-repeater ifakwe ngokungafanelekanga, ukuhlukaniswa kwe-antenna ye-transceiver ayanele.Inzuzo yomntu ophindayo yonke ibaluleke kakhulu.Isiginali yemveliso iya kubuyiselwa kwigalelo emva kokulibaziseka, okukhokelela ekugqwethekeni okukhulu kwesiginali yesiphumo esiphindaphindayo kunye nokuzihlaziya.I-spectrum ye-frequency ye-signal self-excitation iya kwenzeka.Emva kwe-self-excitation, umgangatho we-signal wave uba mbi ngakumbi, ochaphazela kakhulu umgangatho wefowuni kwaye ubangele ukuhla kweefowuni.

Kukho iindlela ezimbini zokoyisa i-self-excitation phenomenon.Enye kukunyusa ukwahlukana phakathi kwe-eriyali yomxhasi kunye ne-eriyali yokudluliselwa kwakhona, kwaye enye kukunciphisa inzuzo yokuphinda.Xa ukhuselo lokuphinda lufuneka lube luncinci, inzuzo ingancitshiswa.Xa umntu ophindaphindayo kufuneka agubungele indawo enkulu, ukwahlula kufuneka kwandiswe.

- Yandisa umgama othe tye kunye nothe nkqo wee-eriyali

- Yongeza izithintelo, ezinjengokufaka iinethi zokukhusela, njl

- Yandisa i-directivity ye-eriyali yomxhasi, njengokusebenzisa i-eriyali ye-parabolic

-Khetha i-eriyali yokudlulisela kwakhona enesalathiso esomeleleyo, njengee-eyile eziya kulwalathiso

- Lungisa i-engile kunye nesalathiso somnikeli kunye ne-eriyali yokudlulisela kwakhona ukuze zibe kude omnye komnye kangangoko kunokwenzeka.