Cov hlua siv hauv kev saib xyuas kev nyab xeeb yuav tsum yog nyob ntawm qhov deb ntawm lub koob yees duab saib xyuas mus rau tus saib. Yog tias qhov kev ncua ntev dhau lawm, tuaj yeem siv cov coaxial cable. Cov coaxial cable tau thaiv, thiab tus nqi qis thiab raug nqi. Cov kab hluav taws xob coaxial yog tsim los ntawm tus neeg xyuas pib hauv nruab nrab, txheej txheej txheej rwb thaiv tsev, ntaub npog, thiab tiv thaiv thiab txheej txheej sab nrauv cais. Ntau hom kab hluav taws xob muaj qhov sib txawv tsis sib xws. Cov impedances ntawm 75-3, 75-5, thiab 75-7 yog 50Ω, 75Ω, thiab 50Ω feem.
Lub thickness ntawm coaxial cable tau faib los ntawm txoj kab uas hla ntawm txheej rwb thaiv tsev, feem ntau yog 3mm, 5mm, thiab 7mm, feem ntau hu ua 75-3, 75-5 thiab 75-7 (75 yog 75Ω). Thaum xa lub koob yees duab lub teeb liab, yog tias qhov nrug tsawg dua 100 meters, nws raug nquahu kom siv 75-3 coaxial cable, yog tias qhov kev ncua deb nruab nrab ntawm 100 meters thiab 300 meters, nws raug nquahu kom siv 75-5 coaxial cable, thiab yog tias qhov deb tshaj 300 metres, nws raug nquahu kom siv 75-7 cable, ntau dua 1000M kev xa xov video, nws raug nquahu kom siv cov kho qhov muag fiber.
Coaxial cables feem ntau yog siv rau cov ntaub ntawv thiab microwave teeb liab kis tau tus mob. 75Ω coaxial cables muaj daim ntawv thov siv dav thiab feem ntau siv los xa cov teeb liab analog. Kev xa xov ntev ntawm lub teb chaws tus qauv 75-7 cable yog kwv yees li 1.6 npaug ntawm tib yam ntawm 75-5 cable, uas yog, 1600-meter 75-7 cable yog kwv yees li sib npaug rau kev xa mus qis thiab cuam tshuam ntau zaus ntawm 1000 -meter 75-5 kab. Kev xa xov nrug deb ntawm 75-3 cable tau kwv yees kwv yees li 0.4 npaug ntawm 75-5 cable, uas yog, 400-meter 75-3 cable yog kwv yees li sib npaug rau kev txo qis thiab zaus cuam tshuam ntawm 1000-meter 75-5 kab.
Kev sib kis ntev ntawm Qeb 5e tsis muaj ntaub thaiv npog sib txuas ua ke yog kwv yees li 0.43 npaug ntawm 75-5 cable, uas yog, 430m Qeb 5e unshielded twisted khub cable yog kwv yees li sib npaug rau kev xa mus thiab txo qis ntawm 1000m 75-5 cable." kis nrug deb" hais txog ntawm no hais txog qhov ntev ntawm hom sib txawv ntawm cov kab hluav taws xob nrog qhov ua kom zoo ib yam thiab qhov cuam tshuam ntau zaus.
Video coaxial cable yog luv ua SYV ua lus Askiv, thiab muaj ntau zaus ua qauv xws li 75-7, 75-5, 75-3, 75-9, thiab lwm yam, thiab cov yam ntxwv tsis zoo yog txhua 75 ohms los hloov pauv sib txawv .
SYV-75-7 tau muab faib ua SYV-75-7-2, SYV-75-7-8, thiab SYV-75-7-41. Coaxial cable braided shield yog 128 meshes, thaum SYV-75-5 Nws kuj tseem faib ua ob hom: SYV-75-5-41 thiab SYV-75-5-42. Coaxial cable braided shield yog 112 meshes, thiab qhov hnyav tseem yog lub teeb. Cov txheej sab nraud kuj txawv, feem, 7.25mm thiab 4.80mm. Piv nrog -75-7, qhov ua kom me dua, tiv thaiv kev cuam tshuam muaj zog, cov qauv ruaj khov, kev ua haujlwm hluav taws xob tau zoo, thiab nws muaj huab cua zoo tiv taus.