IEC 60728-1-2:2014 provides the minimum performance requirements to be fulfilled in operation at the system outlet or terminal input and describes the summation criteria for the impairments present in the received signals and those produced by the CATV\/MATV\/SMATV cable network, including individual receiving systems. It is applicable to cable networks intended for television signals, sound signals and interactive services operating between about 5 MHz and 3 000 MHz. The frequency range is extended to 6 000 MHz for home distribution techniques that replace wired cords with a wireless two way communication inside a room (or a small number of adjacent rooms) that uses the 5 GHz to 6 GHz frequency band. This second edition cancels and replaces the first edition published in 2009, and constitutes a technical revision. It includes the following technical: update of performance requirements in Clause 7 to include those for DVB-T2 signals. This publication is to be read in conjunction with \/2.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | Figures Figure 1 \u2013 CATV\/MATV\/SMATV cable network \u2013 Performance requirements <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Figure\u00a02 \u2013 Examples of location of HNI for various home network types <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 3.2 Abbreviations <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 4 Methods of measurement <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 5 Subjective quality of television pictures in relation to the main impairments of the analogue composite television signal 5.1 Subjective quality scale Tables Table 1 \u2013 Methods of measurement of IEC\u00a060728-1 applicable in operation <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5.2 Subjective quality and objective parameters Table 2 \u2013 Impairment units versus subjective quality <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Table 3 \u2013 Impairment grade versus un-weighted white noise Table 4 \u2013 Impairment grade versus differential gain Table 5 \u2013 Impairment grade versus differential phase Table 6 \u2013 Impairment grade versus short time linear distortion (2T pulse) Table 7 \u2013 Impairment grade versus chrominance-luminance gain inequality <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Figure 3 \u2013 Signal to echo ratio (dB) versus echo delay (\u03bcs) Table 8 \u2013 Impairment grade versus chrominance-luminance delay inequality Table 9 \u2013 Impairment grade versus echo rating (1 \u03bcs echo delay) Table 10 \u2013 Correction factors to be applied for delays different from 1 \u03bcs <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 6 Summation of the impairments 6.1 Impairments to be summed 6.2 Summation laws 6.2.1 General 6.2.2 Voltage addition <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 6.2.3 Power addition 6.3 Examples 7 Performance requirements in operation 7.1 General <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 7.2 Impedance 7.3 Performance requirements at the terminal input 7.3.1 Definition 7.3.2 Signal level 7.3.3 Other parameters 7.4 Performance requirements at system outlets 7.4.1 Minimum and maximum carrier levels <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 7.4.2 Mutual isolation between system outlets 7.4.3 Isolation between individual outlets in one household 7.4.4 Isolation between forward and return path 7.4.5 Long-term frequency stability of distributed carrier signals at any system outlet 7.4.6 Carrier level differences at system outlet 7.4.7 Frequency response within a television channel 7.4.8 Random noise at system outlet <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Table 11 \u2013 Carrier-to-noise ratios at system outlet (analogue television) in operation Table 12 \u2013 RF signal-to-noise ratios at system outlet (digital television) in operation <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 7.4.9 Interference to television channels Table\u00a013 \u2013 Carrier-to-noise ratios at system outlet (sound radio) in operation <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Annex A (normative) RF carrier to noise ratio A.1 AM-VSB modulated signals A.1.1 General A.1.2 Definition A.1.3 TV receiver IF filtering process A.1.4 Equivalent noise bandwidth Figure\u00a0A.1 \u2013 Example of a TV receiver IF filter (systems B and G) <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | A.1.5 AM demodulation process Figure A.2 \u2013 Example of a demodulated TV signal (systems B and G) <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | A.2 FM modulated signals <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Annex B (informative) Examples of summation of impairments B.1 Voltage addition B.2 Power addition Table B.1 \u2013 Examples of voltage addition <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Table B.2 \u2013 Examples of power addition <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Cable networks for television signals, sound signals and interactive services – Performance requirements for signals delivered at the system outlet in operation<\/b><\/p>\n |