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GB/T 11442-2017General specification for C-band satellite television receive-only station (English PDF)

C频段卫星电视接收站通用规范

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China

Level / Type

National · Recommended

Issue date

May 31, 2017

Implementation date

December 1, 2017

Scope

GB/T 11442-2017 is the English-translated version of C频段卫星电视接收站通用规范.

GB/T 11442-2017 specifies the requirements, test methods, inspection rules, marking, packaging, transport and storage of C-band satellite television and data receive-only stations and their equipment, and applies to the design, production and inspection of analogue television, digital television and data receiving stations and of their antennas, outdoor units (LNBs) and indoor units (receivers).

Television receiving stations are classified as engineering, professional or ordinary type; single-satellite and dual-satellite configurations with L-band power dividers and switches are described, with the requirements for dividers and switches in Annex A. The requirements cover system parameters such as video, RF and audio output formats, input level, de-emphasis and electrical performance, then antennas, outdoor units and indoor units; test methods cover appearance, electrical performance, functions, electromagnetic compatibility, safety, environmental adaptability and reliability, followed by type, acceptance and routine inspection, with annexes on measuring integrated outdoor units, indoor unit test set-ups and transport stream bit error rate, video and audio measurement.

It replaces GB/T 11442-1995, adding satellite digital television (SD and HD) and data reception, material-specific antenna requirements and integrated outdoor units.

Issued on 31 May 2017, in force since 1 December 2017. Classification: ICS 33.060.30, CCS M75. The document runs to 58 pages, delivered complete in English translation.

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Document preview — GB/T 11442-2017

National Standard of the People's Republic of China

ICS: 33.060.30
Classification: M75
Replacing: GB/T 11442-1995

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China

ForewordI
IntroductionII
1 Scope1
2 Normative references1
3 Classification and composition1
4 Requirements3
4.1 System requirements3
4.2 Antenna requirements8
4.3 Outdoor unit requirements11
4.4 Indoor unit requirements14
5 Test methods25
5.1 Test conditions25
5.2 Inspection of appearance, construction and workmanship25
5.3 Measurement of electrical performance25
5.4 Functional check26
5.5 Electromagnetic compatibility measurement26
5.6 Safety check26
5.7 Environmental adaptability26
5.8 Reliability test28
6 Inspection rules29
6.1 Classification of inspection29
6.2 Type inspection29
6.3 Acceptance inspection42
6.4 Routine inspection43
7 Marking, packaging, transport and storage45
7.1 Marking45
7.2 Packaging45
7.3 Transport46
7.4 Storage46
Annex A (normative) Requirements for power dividers and switches47
Annex B (normative) Methods of measurement of gain, feed illumination angle, cross-polarisation discrimination, circular polarisation voltage axial ratio and phase noise of integrated outdoor units48
Annex C (normative) Connection diagrams of measuring instruments and equipment for indoor units52
Annex D (normative) Methods of measurement of transport stream bit error rate and of video and audio53

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 11442-1995, General specification for C-band satellite television receive-only station.

Compared with GB/T 11442-1995, apart from editorial changes, the main technical changes of this standard are as follows:

- in the system part, content on satellite digital television (standard definition and high definition) and satellite data receiving stations has been added (see 4.1.2 and 4.1.3);

- requirements for antennas are given according to the different materials, and the functional and constructional requirements of most concern to users have been added (see 4.2.2 and 4.2.3);

- requirements for integrated outdoor units have been added to the outdoor unit (see 4.3.4 and 4.3.6);

- content on satellite digital television (standard definition and high definition) and satellite data reception has been added to the indoor unit (see 4.4.2 and 4.4.3).

This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.

This standard is under the jurisdiction of the China Electronics Standardization Institute.

Drafting organisations of this standard: the 54th Research Institute of China Electronics Technology Group Corporation, Nanjing Panda Electronics Co., Ltd., Fujian Shenzhou Electronics Co., Ltd., Jiangsu Yinhe Electronics Co., Ltd., Shaanxi Ruyi Electric General Company, Hunan Hangtian Satellite Communication Technology Co., Ltd., Sichuan Video Electronics Co., Ltd., Qingdao Hisense Electric Co., Ltd., Guizhou Zhenhua Tiantong Equipment Co., Ltd., Anhui Sichuang Electronics Co., Ltd., and others.

Drafters of this standard: Tian Yi, Li Shengli, Li Peihong, Wang Xinglin, Zhou Chun, Liu Jingquan, Gu Hongchun, Bai Xiaojun, Ma Jianzhong, Liu Changyong, She Zhiyong, Zheng Xiaoming, Hu Bin and Heng Yongtian.

Introduction

The issuing body of this document draws attention to the fact that it is claimed that compliance with this document may involve the use of a patent concerning 4.4.2.7 a).

The issuing body of this document takes no position concerning the evidence, validity and scope of this patent right.

The holder of this patent right has assured the issuing body of this document that he is willing to negotiate licences with any applicant on reasonable and non-discriminatory terms and conditions. The statement of the holder of this patent right has been registered with the issuing body of this document. Information may be obtained from:

Website: http://www.cti.ac.cn

1 Scope

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transport and storage of C-band satellite television/data receive-only stations and their equipment.

This standard is applicable to the design, production and inspection of C-band satellite analogue television, digital television and data receiving stations and of products such as antennas, outdoor units and indoor units.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 191-2008 Packaging - Pictorial marking for handling of goods

GB/T 2312-1980 Code of Chinese graphic character set for information interchange - Primary set

GB/T 2828.1-2012 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection

GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (apply to inspection of process stability)

GB 8898-2011 Audio, video and similar electronic apparatus - Safety requirements

GB/T 11298.1-11298.4-1997 Methods of measurement for satellite television earth receiving stations

GB/T 12322-1990 Reliability test methods for general-purpose application television equipment

GB/T 12840-1996 Reliability requirements and test methods for cassette tape recorder mechanisms

GB/T 13837-2012 Sound and television broadcast receivers and associated equipment - Radio disturbance characteristics - Limits and methods of measurement

GB/T 16953-1997 General specification for satellite television uplink earth stations

GB/T 17191.3-1997 Information technology - Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s - Part 3: Audio

GB/T 17700-1999 Digital broadcasting systems for television, sound and data services - Framing structure, channel coding and modulation for satellite services

GB/T 17975.2-2000 Information technology - Generic coding of moving pictures and associated audio information - Part 2: Video

GB/T 17975.3-2002 Information technology - Generic coding of moving pictures and associated audio information - Part 3: Audio (Layer II coding)

GY/T 150-2000 Methods of measurement for satellite digital television receiving stations - Measurement of indoor units

SJ/T 11327-2006 Interface specification for digital television receiving equipment - Part 1: Radio frequency signal interface

CELTS-32.1-WD2.0 Technical specification of China education satellite broadband transmission network

ITU-T Recommendation J.17 Pre-emphasis used on sound-programme circuits

3 Classification and composition

3.1 Classification

Satellite television receiving stations are divided into television receiving stations and data receiving stations.

According to technical performance and function, television receiving stations are divided into three types: engineering type, professional type and ordinary type. Data receiving stations are not classified.

Engineering type: its electrical performance and functions meet the requirements for relaying or collective reception of satellite television programmes.

Professional type: its electrical performance is the same as that of the engineering type; only the functional requirements differ (it has a remote control function).

Ordinary type: its electrical performance and functions meet the requirements for direct reception of satellite television programmes.

3.2 Equipment composition

A satellite television receiving station consists of an antenna, an outdoor unit (commonly called the LNB) and an indoor unit (commonly called the receiver), as shown in Figure 1. An L-band power divider may be connected between the outdoor unit and the indoor units, allowing multiple satellite television programmes transmitted by the same satellite to be received in real time.

Figure 1 - Equipment composition of a single-satellite television receiving station: antenna, outdoor unit and power divider, whose outputs 1 to 8 feed an analogue television indoor unit (video and audio outputs), a digital television indoor unit (video and audio outputs) and a data receiving indoor unit connected to a computer.

A second configuration is shown in Figure 2: power dividers and switches are connected between the outdoor units and the indoor units, allowing several indoor units to receive simultaneously and independently multiple satellite television programmes transmitted by two or more satellites.

Figure 2 - Equipment composition of a dual-satellite television receiving station: two antennas, each with an outdoor unit and a power divider; the power divider outputs are cross-connected to two switches with H/L and V/R inputs, each switch having outputs 1 to 8 which feed a data receiving indoor unit (connected to a computer), an analogue TV indoor unit and a digital TV indoor unit (video and audio outputs).

The electrical performance requirements for the power dividers in Figures 1 and 2 and for the switches in Figure 2 are given in Annex A.

4 Requirements

4.1 System requirements

4.1.1 Requirements for satellite analogue television receiving stations

4.1.1.1 Technical specification

Shall comply with GB/T 16953-1997.

4.1.1.2 Video output format

Number of ports: >= 2 (composite video).

Impedance: 75 Omega (unbalanced).

Level: 1 Vp-p (including sync, positive polarity).

Connector: TX coaxial socket.

4.1.1.3 RF output (optional)

Number of ports: 1.

Number of channels: >= 2 (UHF band).

Level: >= 70 dBµV.

Connector: in accordance with SJ/T 11327-2006.

4.1.1.4 Audio output format

Number of ports: >= 2.

Impedance: 600 Omega balanced/unbalanced (engineering type/professional type); 600 Omega unbalanced or low impedance (ordinary type).

Connector: XLR three-pin socket (balanced); TX coaxial socket (unbalanced/low impedance).

Level: 0 dBm ± 6 dB.

4.1.1.5 Indoor unit input level

Not less than -60 dBm.

4.1.1.6 De-emphasis network

Audio: ITU-T Recommendation J.17.

Video: ITU-R Recommendation F.405-1.

4.1.1.7 Electrical performance requirements

The electrical performance requirements for satellite analogue television receiving stations are given in Table 1.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 58 pages — is available in the English PDF.

Referenced standards

Normative references

GB 8898-2011 · GB/T 12322-1990 · GB/T 13837-2012 · GY/T 150-2000 · CELTS-32.1-WD2.0 · ITU-T J.17

Similar standards

GB/T 11298.3-1997|GB/Z 41297-2022|GB 32634-2025|GB 33473-2016|GB 40050-2021

Editions of GB/T 11442

Edition	Title	Revision	Status
GB/T 11442-2017	General specification for C-band satellite television receive-only station	current edition	Current
GB/T 11442-1995	specification for satellite television earth receive-only station	previous edition	Superseded

This page sells the current edition, GB/T 11442-2017. Earlier editions are listed for reference only.

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