SYV 75-5-2射頻同軸電纜國標包檢測
簡要描述:SYV 75-5-2射頻同軸電纜國標包檢測同(tong)(tong)軸(zhou)電(dian)(dian)(dian)(dian)(dian)纜(lan)從用途可分(fen)為基(ji)帶同(tong)(tong)軸(zhou)電(dian)(dian)(dian)(dian)(dian)纜(lan)和寬帶同(tong)(tong)軸(zhou)電(dian)(dian)(dian)(dian)(dian)纜(lan)(即網絡同(tong)(tong)軸(zhou)電(dian)(dian)(dian)(dian)(dian)纜(lan)和視頻同(tong)(tong)軸(zhou)電(dian)(dian)(dian)(dian)(dian)纜(lan))。同(tong)(tong)軸(zhou)電(dian)(dian)(dian)(dian)(dian)纜(lan)分(fen)50Ω基(ji)帶電(dian)(dian)(dian)(dian)(dian)纜(lan)和75Ω寬帶電(dian)(dian)(dian)(dian)(dian)纜(lan)兩類。基(ji)帶電(dian)(dian)(dian)(dian)(dian)纜(lan)又分(fen)細同(tong)(tong)軸(zhou)電(dian)(dian)(dian)(dian)(dian)纜(lan)和粗同(tong)(tong)軸(zhou)電(dian)(dian)(dian)(dian)(dian)纜(lan)。基(ji)帶電(dian)(dian)(dian)(dian)(dian)纜(lan)僅僅用于數(shu)字傳輸,數(shu)據率可達10Mbps。
產品型號:
所屬分(fen)類:同軸射頻電纜
更新時間:2023-12-09
廠商性質:生產廠家
SYV 75-5-2射頻同軸電纜國標包檢測
同軸(zhou)電(dian)纜(lan)(lan)(lan)以(yi)硬銅線為芯,外(wai)包一(yi)層絕(jue)緣材料(liao)。這(zhe)層絕(jue)緣材料(liao)用密織的網狀(zhuang)導體環(huan)繞,網外(wai)又覆蓋一(yi)層保護性材料(liao)。有(you)兩種(zhong)廣泛使用的同軸(zhou)電(dian)纜(lan)(lan)(lan)。一(yi)種(zhong)是(shi)50歐姆(mu)電(dian)纜(lan)(lan)(lan),用于(yu)(yu)數字(zi)傳輸,由于(yu)(yu)多用于(yu)(yu)基帶(dai)傳輸,也(ye)叫基帶(dai)同軸(zhou)電(dian)纜(lan)(lan)(lan);另(ling)一(yi)種(zhong)是(shi)75歐姆(mu)電(dian)纜(lan)(lan)(lan),用于(yu)(yu)模(mo)擬傳輸,即寬(kuan)帶(dai)同軸(zhou)電(dian)纜(lan)(lan)(lan)。這(zhe)種(zhong)區別是(shi)由歷史原因造成的,而不(bu)是(shi)由于(yu)(yu)技術原因或生產廠家。
SYV 75-5-2射頻同軸電纜國標包檢測
同軸(zhou)電(dian)纜(lan)(lan)(lan)的(de)這種結(jie)構,使(shi)它具(ju)有(you)高帶寬(kuan)和(he)的(de)噪聲抑制(zhi)特(te)性。同軸(zhou)電(dian)纜(lan)(lan)(lan)的(de)帶寬(kuan)取決于(yu)(yu)電(dian)纜(lan)(lan)(lan)長度。1km的(de)電(dian)纜(lan)(lan)(lan)可以達到1Gb/s~2Gb/s的(de)數據(ju)傳(chuan)輸速率。還可以使(shi)用更長的(de)電(dian)纜(lan)(lan)(lan),但(dan)是傳(chuan)輸率要降低或使(shi)用中間放大器。目前,同軸(zhou)電(dian)纜(lan)(lan)(lan)大量被光纖取代(dai),但(dan)仍廣泛(fan)應用于(yu)(yu)有(you)線和(he)無線電(dian)視和(he)某些(xie)局(ju)域網。
射頻同軸(zhou)電(dian)(dian)纜(lan)是指有(you)兩(liang)個同心導體(ti),而導體(ti)和屏蔽層又共用(yong)同一軸(zhou)心的(de)(de)電(dian)(dian)纜(lan)。射頻同軸(zhou)電(dian)(dian)纜(lan)絕(jue)緣材料采(cai)射頻同軸(zhou)電(dian)(dian)纜(lan)系列(9張)用(yong)物理發炮聚乙(yi)烯隔(ge)離(li)銅線導體(ti)組成,在里層絕(jue)緣材料的(de)(de)外部(bu)是另一層環形導體(ti)即外導體(ti),外導體(ti)采(cai)用(yong)銅帶成型、焊接、扎紋(wen);或是采(cai)用(yong)鋁管結構;或是采(cai)用(yong)編織結構, 然(ran)后整個電(dian)(dian)纜(lan)由聚材料的(de)(de)護套包住。
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