Igalaji yonxibelelwano kunye nesakhiwo sayo

I-channel yezonxibelelwano yinxalenye ebalulekileyo yenkqubo yokudlulisa ulwazi. Ngokubanzi, le ngcamango ifihla isethi yezixhobo eziye zenzelwe ukuqinisekisa ukuhanjiswa kwesignali ngeepropati ezithile ukusuka kwenye indawo ukuya kwenye.

Umzila wezonxibelelwano unemiyalezo ebalulekileyo njengendlela yokunxibelelana apho ukudluliselwa kwamagetsi okuchithwa kwe- electromagnetic echazwe kwi-transmitter ukuya kwisixhobo sokufumana esenziwa. Kuthetha ukuthini oku? Elinye iqela ngokubanzi linokuqulatha imiqolo emininzi. Unokuthi malunga nomzuzu ochaseneyo. Ngokuqhelekileyo, omnye umgca wokunxibelelana ungena ngexesha elinye kwizithuba. Kodwa akukho konke. Ukongeza kwimida, iziteshi zibandakanya izixhobo eziphakanyiswe kumgangatho ophakathi kunye nokugqibela. Ngokuxhomekeke kumsebenzi, ezi zixhobo zingabhekisela kwizinto ezahlukileyo.

Ukwahlula kwamashishini oonxibelelwano luqhutyelwa ngezizathu ezahlukeneyo: uhlobo lobugcisa lweempawu, injongo yenkqubo, imigca esebenzayo kunye nezinye iiparitha.

Kukho omnye ulwahlulo. I-channel yezonxibelelwano ingaba i-analog okanye idijithali, kwaye ukudala kokubini kunokwenzeka kwimiyalezo efanayo. Ngokwenza njalo, basebenza ngokuhlukileyo. Oku kuzaliswa ngamathuba amaninzi. Kwiinkqubo ezintsha, iziteshi ze-analog zitshintshwa ngokuzenzekelayo ngezedijithali. Kodwa oku akuyimfuneko. Kwi-intanethi ende, ininzi kubo bonke ubude, njengomthetho, zi-analog, kodwa kukho i-analog-digital. Ngako oko, ngokukodwa inqaku liya kudlula njenge-analog, kunye nenye njengedigrikhi.

Ukwakhiwa kweziteshi ezahlukeneyo kwiipambo zombini nge-signalmen yenziwe ukususela kwimashumi amabini ekhulu lokugqibela. Omnye umgca we-coaxial ungadlulisela kuma-10,800 amashaneli efoni, okanye isignali yedijithali, isantya se-565 megabits ngesibini. Apha simele sithethe ngeengxaki eziphambili phakathi kwezi ngqiqo. Kuloo mgca, umntu akanako ukuthetha ukuba unomda othile wendlela eya kuthiwa yatshoyo malunga nazo zonke iinkcukacha zokwakha, ubude, kunye nesikhokelo esakhiweyo. Kwaye kwimeko xa sicinga umzila wezonxibelelwano, zonke iimpawu zinikezelwa. Emva koko, ngokuqhelekileyo zichanekileyo kwaye zichazwe ngokubanzi, kwaye uhlobo lwabo luzimeleyo ngokupheleleyo nantoni na. Kwinqanaba elithile, umgca wokunxibelelana ufana nomzila weloliwe, kwaye umjelo kulo mzekelo ufaniswa nemoto enegunya elicacileyo lomthwalo.

Kukho enye ingcamango. Umzila wezonxibelelwano ozinikeleyo uyisigaba esinomda ogqityiweyo kunye nomgca wendlela yokuhamba, odibanisa ngokusisigxina ababini ababhalisile. Ababhalisi bangaba zixhobo ezithile okanye amanethiwekhi onke. Olu hlobo luhlala luqeshwe kwiinkampani, kwaye iinkampani ezinkulu zingakha ezakhe.

I-channel yezonxibelelwano ingaba i-analog okanye idijithali, kwaye ikhethwe kuxhomekeke kwizinto ezifunwa ngumthengi. Kwimeko ye "vydelenki" inkampani ikhokelwa lizinga elithile leemfuno. Ukuze kusetyenziswe imigudu eyahlukeneyo.