Ivelaphi Isignali Yomakhalekhukhwini?

Q1. Ivelaphi isignali yeselula?
Ngikholwa ukuthi abantu abaningi sebezwile ngala magama amabiliisiteshi sesisekelo noma isiteshi sesignali (umbhoshongo), kodwa empeleni ziyinto eyodwa. Isignali yeselula idluliselwa ngale nto esiyibiza ngokuthi isiteshi sesisekelo.

Q2. Yini i-electromagnetic wave?
Kalula nje, amagagasi kazibuthe angamagagasi ayizinhlayiyana azulazulayo atholakala futhi akhishwa emkhathini ngamasimu kagesi kanye nakazibuthe asesigabeni futhi ancikene komunye nomunye. Ziyizinkambu ze-electromagnetic ezisakazeka ngendlela yamagagasi futhi ezinobumbano bezinhlayiyana zamagagasi. Isivinini sokusabalalisa: isivinini sezinga lokukhanya, akukho mshini wokusabalalisa odingekayo (Igagasi lomsindo lidinga i-medium). Amagagasi kagesi amuncwa futhi abonakale lapho ehlangana nensimbi, futhi aba buthaka lapho evinjwe izakhiwo, futhi aba buthaka lapho kunomoya, lina futhi liduma. Lapho ubude begagasi buba mfushane futhi buphakama imvamisa yamagagasi kagesi, idatha eyengeziwe idluliselwa ngesikhathi seyunithi ngayinye.

Q3. Singayithuthukisa kanjani isignali?
Kunezindlela ezimbili okwamanje. Enye iwukwazisa u-opharetha wakho ukuthi isignali yendawo ayilungile, futhi umnyango wokuthuthukisa inethiwekhi uzohamba ukuyohlola amandla esignali. Uma amandla esignali engahlangabezani nezidingo, u-opharetha uzokwakha isiteshi esiyisisekelo lapha ukuze athuthukise inethiwekhi yakho.

Enye iwukusebenzisa i-amplifier yesignali yeselula. Umgomo wayo ukusebenzisa i-antenna eya phambili (i-antenna yomnikeli) ukuthola isignali ye-downlink yesiteshi sesisekelo kusiphindaphinda, ukukhulisa isignali ewusizo nge-amplifier yomsindo ophansi, ukucindezela isignali yomsindo kusiginali, futhi uthuthukise isignali-kuya. -Isilinganiso somsindo (S/N); bese iguqulelwa phansi ibe isignali yefrikhwensi emaphakathi, ihlungwe yisihlungi, ikhuliswe imvamisa emaphakathi, bese ishintshwa imvamisa futhi iguqulelwe phezulu ibe imvamisa yomsakazo, ikhuliswe isikhulisi samandla, bese idluliselwa esiteshini esihambayo ngemuva. i-antenna (i-antenna ehambisa kabusha); Ngasikhathi sinye, isiginali ye-uplink yesiteshi esihambayo yamukelwa i-antenna engemuva, futhi icutshungulwa isixhumanisi sokukhulisa i-uplink ngasendleleni ephambene: okungukuthi, idluliselwa esiteshini esiyisisekelo nge-amplifier yomsindo ophansi, i-down. -i-converter, isihlungi, i-amplifier ephakathi, i-up-converter, ne-amplifier yamandla, ngaleyo ndlela Kuzuzwe ukuxhumana okubili phakathi kwesiteshi sesisekelo nesiteshi esihambayo.

Ama-amplifiers amasignali omakhalekhukhwini angasetshenziswa ezindaweni eziminyene zasemadolobheni, emaphethelweni emadolobheni nasezindaweni ezingaphansi kwedolobha, nasezindaweni zasemakhaya. Kulula kakhulu. Iyiphi inketho oyikhethayo?

I-Linchuang yibhizinisi lobuchwepheshe obuphezulu elisebenzela abasebenzisi abangaphezu kwesigidi esisodwa emazweni nasezifundeni eziyi-155 emhlabeni jikelele. Emkhakheni wezokuxhumana ngomakhalekhukhwini, sigcizelela ekusunguleni izinto ezintsha mayelana nezidingo zamakhasimende ukuze sisize amakhasimende axazulule izidingo zesignali yokuxhumana! U-Linchuang uzibophezele ekubeni umholi embonini yebhuloho yesignali ebuthaka, ukuze kungabikho izindawo eziyizimpumputhe emhlabeni, futhi wonke umuntu angakwazi ukuxhumana ngaphandle kwezithiyo!