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IEC 60728-5 Ed. 3.0現行

Cable networks for television signals, sound signals and interactive services Part 5: Headend equipment

出版:International Electrotechnical Committee

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基本信息
標準編號: IEC 60728-5 Ed. 3.0
發布時間:2015/12/9 0:00:00
標準類別:Standard
出版單位:International Electrotechnical Committee
標準頁數:188
標準簡介

IEC 60728-5:2015 specifies the characteristics of equipment used in the headends of terrestrial broadcast and satellite receiving systems (without satellite outdoor units and without those broadband amplifiers in the headend as described in IEC 60728-3). It: - covers the frequency range 5 MHz to 3 000 MHz; - identifies performance requirements for certain parameters; - lays down data publication requirements for certain parameters; - stipulates methods of measurements; - introduces minimum requirements defining quality grades (Q-grades). This third edition cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - new text for the introduction, following the scope of IEC TC 100/TA 5; - introduction of IPTV to the scope; - headend specification for digital terrestrial TV signals according to the DVB-T2 standard; - headend specification for digital TV signals in cable networks according to the DVB-S2 standard.

本標準替代的舊標準

IEC 60728-5 Ed. 2.0