Uyini umehluko phakathi kwentambo ye-coaxial engu-50 ohm no-75 ohm?

Uyini umehluko phakathi kwentambo ye-coaxial engu-50 ohm no-75 ohm?

Sawubona, woza uzobonisana nemikhiqizo yethu!

Uyini umehluko phakathi kwentambo ye-coaxial engu-50 ohm no-75 ohm

Ikhebuli engu-50 Ω isetshenziswa kakhulu ukudlulisa amasignali edatha kumasistimu okuxhumana ezindlela ezimbili.Izinkambu zohlelo lwayo zibanzi uma kuqhathaniswa, okuhlanganisa ukuhlolwa kwesignali, inethiwekhi yekhompuyutha ye-Ethernet yomgogodla, ikhebula lokuphakelayo kwe-antenna engenantambo, ikhebula lokuphakelayo lesathelayithi le-GPS lendawo yomhlaba wonke kanye nesistimu yomakhalekhukhwini.Ikhebula elingu-75 Ω lisetshenziswa kakhulu ukudlulisa amasignali evidiyo.Ukudluliswa kwesignali ye-TV ngekhebula kuwuhlelo lokusebenza olujwayelekile.Ngalesi sikhathi, izixhumi zohlobo lwe-F zivame ukusetshenziswa, njengoxhumano lwe-antenna ye-TV yekhebula yasekhaya.Olunye uhlelo lokusebenza ukudlulisa amasignali evidiyo phakathi kwesidlali se-DVD, i-VCR, ukuqapha ezokuphepha nezinye izinhlelo nemishini.Ngalesi sikhathi, ngokuvamile ibizwa ngokuthi ikhebula lomsindo/ividiyo (A/V) nesixhumi.Ngalesi sikhathi, izixhumi ze-BNC ne-RCA zivame ukusetshenziswa.Amakhebuli angu-75 Ω ngokuvamile ayikhebuli yesikhondatha emaphakathi eqinile engu-RG59B/U kanye nekhebuli yesikhondatha exhumekile emaphakathi engu-RG59A/U.Ikhebula le-75 Ω lisetshenziselwa kakhulu ukudlulisa isignali yevidiyo, kuyilapho ikhebula elingu-50 Ω lisetshenziselwa kakhulu ukudlulisa isignali yedatha.


Isikhathi sokuthumela: Jan-30-2023