Yini esingayenza lapho ukuziphindaphinda ukuzithokozisa?

Kuyini ukuzithokozisa kwesignali yeselula?

Ukuzithokozisa kusho ukuthi isignali ekhuliswe umphindi ingena ekugcineni kokwamukela ukukhulisa okwesibili, okuholela emsebenzini wesikhulisi samandla esimweni sokugcwala.I-self-excitation ephindaphindayo ibonakala kuphela kwisiphindaphindi esingenantambo.Ngoba i-fiber optical repeater ixhunywe isignali yesiteshi ngokuqondile, ngakho-ke i-fiber optical repeater ngeke ikhiqize ukuzithokozisa, ake sithi i-fiber optical repeater inesiginali.Kodwa uma ungakwazi ukushaya ucingo noma ikhwalithi yocingo ephansi ku-fiber optical repeater.Uma kunjalo, kunconywa ukuthi uhlole i-uplink ne-downlink attenuation kanye ne-repeater hardware.

Kuyini ukuzithokozisa:

Isibonelo, ukushintsha kwezinga lokushisa kubangela ukuguqulwa kwenzuzo ye-amplifier, ukuhlukaniswa, namapharamitha esiteshi sesisekelo;ke, kuzobangela ukwanda okokufaka kophindaphindayo.Uma ulungisa iphutha eliphindayo, sicela ungalandeli ngokweqile ukukhulisa futhi ulungise inzuzo kakhulu.Kufanele ushiye indawo yakho.Kulaba abaphindayo abanamarekhodi amaphutha, kuyinselele ukuthola ukuzithokozisa esiteshini esibuyela emuva salowo ophindayo.Ngenxa yokuthi isiteshi sangaphambili sesiphindaphinda sihlala sinokufakwa kwesiginali okuvela esiteshini esiyisisekelo, uma ophindayo ejabule yedwa, i-amplifier eya phambili ingase ilayishwe ngokweqile.Abanye abaphindayo bathola ukuthi i-amplifier igcwele kakhulu izikhathi ezintathu.Bazocima ophindayo ngokushesha futhi banikeze irekhodi elicacile lokwehluleka.Kulula ukuyithola.Nokho, isignali yokufaka ye-amplifier yesiteshi esibuyela emuva iyahluka kakhulu.I-transmitter yeselula ayihlali isesimweni sokudlulisela, futhi ibanga alihlali lifana.

Kwezinye izimo, kuzobangela ukuthi isikhulisi sesiteshi esibuyela emuva sijabule.I-amplifier ibuyela kokujwayelekile ngenxa yokulahlekelwa okungazelelwe okokufaka.Ukuzithokozisa kwe-amplifier yesiteshi esibuyela emuva akuyona nje imizuzwana embalwa futhi ayijwayelekile.Kwesinye isikhathi ayizithokozisi kanye amahora ambalwa, okunzima kakhulu ukulungisa iphutha.

Uma okuphindayo kufakiwe, iselula ingaphendula ucingo lwasendaweni uma iselula ixhumana nocingo lwasendaweni.Noma kunjalo, ucingo lwasendaweni luyanqanyulwa lapho uphendula umakhalekhukhwini, futhi izinga lomsindo liphansi.Kungase kubangelwe ukuzithokozisa ngokwakho kwe-amplifier yesiteshi esibuyela emuva sesiphindaphinda.

Lapho i-repeater ifakwe ngendlela engafanele, ukuhlukaniswa kwe-antenna ye-transceiver akwanele.Inzuzo yokuphinda konke ibaluleke kakhulu.Isiginali yokuphumayo izobuyiselwa kokokufakayo ngemva kokubambezeleka, okuholela ekuhlanekeni okukhulu kwesiginali yokuphumayo ephindayo kanye nokuzithokozisa.I-spectrum ye-frequency ye-signal self-excitation izokwenzeka.Ngemuva kokuzithokozisa, ikhwalithi ye-wave yesignali iba yimbi kakhulu, ethinta kakhulu ikhwalithi yocingo futhi ibangele ukwehla kwezingcingo.

Kunezindlela ezimbili zokunqoba isenzakalo sokuzithokozisa.Okukodwa ukukhulisa ukuzihlukanisa phakathi kwe-antenna yomnikeli kanye ne-antenna yokudlulisela kabusha, kanti enye iwukunciphisa ukuzuza kophindayo.Lapho ukumbozwa kophindayo kudingeka kube kuncane, inzuzo ingancishiswa.Lapho okuphindayo kuyadingeka ukumboza indawo enkulu, ukuhlukaniswa kufanele kwandiswe.

- Khulisa ibanga elivundlile neliqondile lezinti

- Engeza izithiyo, njengokufaka amanetha okuvikela, njll

- Khulisa ukuqondisa kwe-antenna yokunikela, njengokusebenzisa i-parabolic antenna

- Khetha i-antenna ehambisa kabusha enesiqondiso esinamandla, njengama-engeli aqondisayo

- Lungisa i-engeli nesiqondiso somnikeli kanye ne-antenna edlulisa kabusha ukuze ziqhelelane ngangokunokwenzeka.