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GB/T 8496-2011 English PDF

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GB/T 8496-2011: Basic parameters and methods of measurement on electronic tuner for receivers for television broadcast transmissions
Status: Valid

GB/T 8496: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 8496-2011English489 Add to Cart 4 days [Need to translate] Basic parameters and methods of measurement on electronic tuner for receivers for television broadcast transmissions Valid GB/T 8496-2011
GB/T 8496-1987English919 Add to Cart 6 days [Need to translate] Basic parameters and methods of measurement on electronic tuner for receivers for television broadcast transmissions Obsolete GB/T 8496-1987

PDF similar to GB/T 8496-2011


Standard similar to GB/T 8496-2011

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Basic data

Standard ID GB/T 8496-2011 (GB/T8496-2011)
Description (Translated English) Basic parameters and methods of measurement on electronic tuner for receivers for television broadcast transmissions
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard M71
Classification of International Standard 33.160.25
Word Count Estimation 21,250
Date of Issue 2011-10-31
Date of Implementation 2012-02-01
Older Standard (superseded by this standard) GB/T 8496-1987
Quoted Standard GB/T 9383; GB 13873; SJ/T 2303-1983
Regulation (derived from) Announcement of Newly Approved National Standards No. 15 of 2011
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the television broadcast receivers electronic tuner basic parameters and measuring methods. This standard applies to television broadcast receivers with VHF/UHF (VHF/UHF) electronic tuner. VCR with electronic tuner can also refer to the use.

GB/T 8496-2011: Basic parameters and methods of measurement on electronic tuner for receivers for television broadcast transmissions


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Basic parameters and methods of measurement on electronic tuner for receivers for television broadcast transmissions ICS 33.160.25 M71 National Standards of People's Republic of China Replacing GB/T 8496-1987 Television broadcast receiver Electronic tuner Basic parameters and methods of measurement Issued on. 2011-10-31 2012-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 1 General Provisions 3.1 Channel 1 receiver 3.2 intermediate frequency 1 3.3 Input impedance 1 3.4 Output impedance 1 3.5 Operating voltage 1 3.6 Measurement Condition 1 4 Electrical Performance 2 4.1 oscillation frequency coverage of 2 4.2 MULTIPLE-frequency amplitude frequency characteristics 2 4.3 IF amplitude-frequency characteristic 3 4.4 3 total amplitude-frequency characteristics 4.5 3 power gain 4.6 Noise Figure 4 4.7 input return loss 4 4.8 The maximum input signal level 5 4.9 false rejection ratio 5 4.10 IF rejection ratio 6 4.11 low channel interference rejection ratio 6 4.12 difference frequency interference suppression ratio 7 4.13 color subcarrier interference suppression ratio 7 4.14 crosstalk modulating immunity 9 4.15 oscillation frequency temperature drift 9 4.16 automatic frequency control (AFC) sensitivity 10 4.17 Electromagnetic compatibility features 11 5 Mechanical properties 11 5.1 DIMENSIONS 11 5.2 appearance quality 11 11 5.3 Terminal Strength 5.4 socket 12 separating force 6 Other 12 6.1 Lightning test simulated 12 6.2 Pressure test antenna 12 6.3 Test tap 13 Appendix A (informative) Table of Frequency Allocations of TV channels 14

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is GB/T 8496-1987 "television broadcast receiver electronic tuner basic parameters and measurement methods" amendments. This standard and GB/T 8496-1987 compared to the main changes are as follows. a) Based on the current status of technology and products for the power gain, noise figure, two indicators have been adjusted. b) According to the current testing equipment and methods used by the manufacturers of the actual test conducted on the high-frequency amplitude-frequency characteristic of reflection loss measurement method Modified. c) the original standard input of the local oscillator interference voltage, the local oscillator radiation interference field strength has been unable to meet the new national standard related to electromagnetic interference and Immunity characteristics requirements. This revision these two indicators combined into one --- EMC performance requirements, and cited new Related GB , respectively. GB 13837 and GB/T 9383. d) DIMENSIONS claim to "press manufacturers and technical specifications," while deleting Appendix B. e) Since the original standard-setting time earlier, the format does not meet the GB/T 1.1-2009 requirements, revision of standard format Modified. This standard replaces GB/T 8496-1987 "television broadcast receiver electronic tuner Basic parameters and methods of measurement." The standard proposed by the People's Republic of China Ministry of Information Industry. This standard by the national audio, video and multimedia systems and equipment Standardization Technical Committee (SAC/TC242) centralized. This standard was drafted. China Electronics Standardization Institute, Chengdu Xuguang Technology Co., Ltd., Chongqing-good Electronics Co., Matsushita Electric Research and Development (China) Co., Ltd., Suzhou Victory Technology Co., Kohl, Wuxi Electronics Co., Ltd. The main drafters of this standard. Chenren Wei, Bobing policy, often Zhao, Liang Xiaobing. This standard replaces the previous standard release case. GB/T 8496-1987. Television broadcast receiver Electronic tuner Basic parameters and methods of measurement

1 Scope

This standard specifies the basic parameters and methods of measurement of electronic television broadcast receiver tuner. This standard applies to television broadcast receiver with VHF/UHF (VHF/UHF) electronic tuner. VCR electronic transfer Tuner can also refer to use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 9383 Sound and television broadcast receivers and associated equipment - Immunity characteristics Limits and methods of measurement GB 13837 Sound and television broadcast receivers and associated equipment - Radio disturbance characteristics - Limits and methods of measurement SJ/T 2303-1983 TX type concentric plug seat

3 General

3.1 channel receiver Very High Frequency (VHF) is (1-12) channels, ultra high frequency (UHF) (13 ~ 57) channel, TV channel rate divided performance in Appendix A. 3.2 intermediate frequency Picture intermediate (fIP). 38MHz; Sound IF (fIS). 31.5MHz; Colour IF (fIC). 33.57MHz. 3.3 Input impedance 75Ω unbalanced. 3.4 Output Impedance 75Ω unbalanced. 3.5 Operating Voltage Provisions in the product standard 3.6 Measurement conditions Measurement standard atmospheric conditions. Ambient temperature. 15 ℃ ~ 35 ℃; Relative Humidity. 25% to 75%; Pressure. 86kPa ~ 106kPa.

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