ДСТУ IEC 60728-1:2018 Кабельные сети для распределения телевизионных сигналов, аудиосигналов и мультимедийных служб. Часть 1. Системные характеристики прямых каналов (IEC 60728-1:2014, IDT)

ПІДТВЕРДЖУ ВАЛЬНЕ ПОВІДОМЛЕННЯ

Державне підприємство
«Український науково-дослідний і навчальний центр
проблем стандартизації, сертифікації та якості»
(ДП «УкрНДНЦ»)

Наказ від 17.10.2018 № 358

ІЕС 60728-1:2014

Cable networks for television signals,
sound signals and interactive services —
Part 1: System performance of forward paths

прийнято як національний стандарт
методом підтвердження за позначенням

ДСТУ ІЕС 60728-1:2018
(ІЕС 60728-1:2014, IDT)

Кабельні мережі для розподілення телевізійних сигналів,
аудіосигналів та мультимедійних служб.
Частина 1. Системні характеристики прямих каналів

З наданням чинності від 2018-11-01

 
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

CONTENTS

FOREWORD

INTRODUCTION

1 Scope

2 Normative references

3 Terms, definitions, symbols and abbreviations

3.1 Terms and definitions

3.2 Symbols

3.3 Abbreviations

4 Methods of measurement at system outlets

4.1 Performance limits

4.2 Mutual isolation between system outlets

4.3 Amplitude response within a channel

4.4 Chrominance-luminance gain and delay inequalities

4.5 Non-linear distortion

4.6 Carrier-to-noise ratio

4.7 Echoes

4.8 AM-VSB television, FM radio and FM television signal level

4.9 Data echo rating and data delay inequality

4.10 Interference in FM sound radio channels

4.11 Methods of measurement for digitally modulated signals

5 Performance requirements at system outlet

5.1 General

5.2 Impedance

5.3 Requirements at the terminal input

5.4 Carrier levels at system outlets

5.5 Mutual isolation between system outlets

5.6 Frequency response within a television channel at any system outlet

5.7 Long-term frequency stability of distributed carrier signals at any system outlet

5.8 Random noise

5.9 Interference to television channels

5.10 Video baseband requirements

5.11 Hum modulation of carriers in television channels

5.12 Requirements for data signal transmission

5.13 Digitally modulated signals - Additional performance requirements

5.14 FM sound radio - Additional performance requirements

6 Performance requirements at receiving antennas

6.1 General

6.2 Method of measurement of field strength

6.3 Requirements

6.4 Interference reduction

7 Performance requirements at home network interfaces of cable networks

7.1 General

7.2 Requirements at HNI1 for passive coaxial home networks

7.3 Requirements at HNI2 for active coaxial home networks

7.4 Requirements at HNI3 and at system outlet or terminal input when the home network is mainly of balanced type

7.5 Requirements at HNI3 (Case C)

7.6 Requirements at HNI3 (Case D)

Annex A (informative) Reception of television signals

Annex В (normative) Calibration of modulation depth

Annex C (normative) Equipment required - Additional items

Annex D (normative) Preliminary checks on the measuring equipment for carrier-to-noise ratio

Annex E (normative) Correction factors

Annex F (normative) Calibration of the measuring receiver

Annex G (normative) Correction factors for noise

Annex H (normative) Null packet and PRBS definitions

Annex I (normative) Digital signal level and bandwidth

Annex J (normative) Correction factor for a spectrum analyser

Annex К (informative) Differences in some countries

Bibliography