Zeziphi izicelo eziqhelekileyo zeentambo ze-coaxial?

 

 

Intambo yeCoaxial("coax" ngamafutshane) ithathwa ngokuba isetyenziselwa kuphela ividiyo ebanzi kunye nomabonakude wentambo (CATV) izicelo zasekhaya, kodwa kwiindawo zeshishini, ukusuka kumabonakude wesekethe evaliweyo (CCTV), iaudiyo nevidiyo ukuyaIi-eriyali zefrikhwensi yonomathotholo, kunye noQhagamshelo oluthile lwenethiwekhi lunokufumaneka kuyo. Ke ngoko, kubalulekile ukuqonda eli ziko lekhebula kunye nendlela yokulivavanya.

 

Uhlobo oluphambili

 

Kukho iintlobo ezahlukeneyo zeentambo ze-coaxial ezixhasa uluhlu olubanzi lwezicelo zobungcali, ezinje ngonxibelelwano lwesathelayithi, ezamashishini, ezomkhosi kunye nezaselwandle. Ezi ntlobo zintathu zixhaphakileyo zeentambo ze-coaxial ezingezizo ezamashishiniRG6, RG11, kunyeRG59, apho i-RG6 ixhaphake kakhulu kwizicelo ezinje ngeCCTV kunye neCATVkwiindawo ezihlanganisiweyo. Umqhubi wezikoRG11ujiyile kuneRG6, Oko kuthetha ukuba ilahleko yokufakwa kwayo isezantsi kwaye umgama wokuhambisa umqondiso mde. Nangona kunjalo, iintambo ezomeleleyo ze-RG11 zibiza kakhulu kwaye kunzima kakhulu ukuzigoba, ezibenza bangakulungeli ukufakwa kwizicelo zangaphakathi, kodwa zilungele ufakelo olungaphandle lomgama omde okanye amakhonkco othe nkqo omqolo.I-RG59 ibhetyebhetye ngakumbi kune-RG6,kodwa ilahleko yayo iphezulu. Ayifane isetyenziswe kwezinye iinkqubo ngaphandle kwe-bandwidth esezantsi, usetyenziso lwevidiyo ye-analog esezantsi (iikhamera ezijonga ngasemva kwiimoto) ezinemigama emifutshane kunye nendawo encinci yeentambo.

 

Isiginali yedijithali 3 (DS3) isiginali esetyenziswa kwiofisi esembindini (ekwabizwa ngokuba ngumgca we-T3) inkonzo yokuhambisa iyasebenzisaiintambo coaxial, kubandakanya 75 type © 735 uhlobo kunye nohlobo 734. Intambo yohlobo lwe-735 inomgama wokugubungela ukuya kuthi ga kwiimitha ezingama-69, ngelixa uhlobo lwentambo engama-734 lunomgama wokufikelela kwiimitha ezili-137.Intambo ye-RG6Ingasetyenziselwa ukuhambisa imiqondiso yeDS3, kodwa umgama wokugubungela umfutshane.