Ivelaphi Isignali Yeselula?

Umbuzo 1. Ivelaphi isignali yocingo oluphathwayo?
Ngikholwa ukuthi abantu abaningi sebezwile ngalezi zindlela ezimbiliisiteshi sesisekelo noma isiteshi sesignali (umbhoshongo), kodwa empeleni ziyinto eyodwa. Isignali yocingo oluphathwayo idluliselwa ngale nto esiyibiza ngokuthi isiteshi sesisekelo.

Umbuzo 2. Kuyini i-electromagnetic wave?
Kalula nje, amagagasi kagesi angamagagasi ezinhlayiya ezinyakazayo atholakala futhi akhishwe emkhathini ngamasimu kagesi namagnetic asesigabeni futhi aqonde komunye nomunye. Angamasimu kagesi asakazeka ngesimo samagagasi futhi anobumbili bamagagasi nezinhlayiya. Ijubane lokusabalala: ijubane lezinga lokukhanya, akukho medium yokusabalala edingekayo (Igagasi lomsindo lidinga medium). Amagagasi kagesi ayamuncwa futhi abonakale lapho ehlangana nensimbi, futhi abuthakathaka lapho evinjwe yizakhiwo, futhi abuthakathaka lapho kunomoya, lina futhi liduma. Uma ubude bomkhathi bufushane futhi imvamisa yamagagasi kagesi iphakama, kulapho idatha ethunyelwa khona kakhulu ngeyunithi ngayinye ngesikhathi.

Umbuzo 3. Singaluthuthukisa kanjani isignali?
Okwamanje kunezindlela ezimbili. Enye iwukwazisa umqhubi wakho ukuthi isignali yendawo ayilungile, bese umnyango wokwenza ngcono inethiwekhi uzoya ukuyohlola amandla esignali. Uma amandla esignali engahlangabezani nezidingo, umqhubi uzokwakha isiteshi sesisekelo lapha ukuze athuthukise inethiwekhi yakho.

Esinye ukusebenzisa i-amplifier yesignali yocingo oluphathwayo. Umgomo wayo ukusebenzisa i-antenna ehamba phambili (i-antenna yabanikeli) ukuze uthole isignali ye-downlink yesiteshi esiyisisekelo singene ku-repeater, ukukhulisa isignali ewusizo nge-amplifier yomsindo ophansi, ukucindezela isignali yomsindo esisignalini, nokuthuthukisa i-signal-to-noise Ratio (S/N); bese iguqulwa ibe yisignali yemvamisa ephakathi, ehlungiwe yisihlungi, ikhuliswe yimvamisa ephakathi, bese ishintshwa imvamisa bese iguqulwa ibe yimvamisa yomsakazo, ikhuliswe yi-amplifier yamandla, bese idluliselwa esiteshini esiphathwayo yi-antenna yangemuva (i-antenna ethumela kabusha); Ngesikhathi esifanayo, isignali ye-uplink yesiteshi esiphathwayo yamukelwa yi-antenna engemuva, futhi icutshungulwe yisixhumanisi se-uplink amplification endleleni ephambene: okungukuthi, idluliselwa esiteshini esiyisisekelo nge-amplifier yomsindo ophansi, i-down-converter, isihlungi, i-intermediate amplifier, i-up-converter, kanye ne-power amplifier, ngaleyo ndlela kufezwe ukuxhumana okubili phakathi kwesiteshi esiyisisekelo nesiteshi esiphathwayo.

Ama-amplifier esignali yocingo oluphathwayo angasetshenziswa ezindaweni ezinabantu abaningi basemadolobheni, emaphethelweni asemadolobheni nasemaphethelweni, nasezindaweni zasemakhaya. Kulula kakhulu. Yikuphi okukhethayo?

I-Linchuang iyibhizinisi lobuchwepheshe obuphezulu elikhonza abasebenzisi abangaphezu kwesigidi emazweni nasezifundeni ezingu-155 emhlabeni jikelele. Emkhakheni wokuxhumana ngeselula, sigcizelela ekusunguleni ngenkuthalo izidingo zamakhasimende ukusiza amakhasimende ukuxazulula izidingo zesignali yokuxhumana! I-Linchuang izibophezele ekubeni ngumholi embonini yokuxhumanisa izimpawu ezibuthakathaka, ukuze kungabikho izindawo ezingaboni emhlabeni, futhi wonke umuntu akwazi ukuxhumana ngaphandle kwezithiyo!