IEC 60728-3:2017 is also available as \/2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60728-3:2017 specifies the measuring methods, performance requirements and data publication requirements for active wideband equipment of cable networks for television signals, sound signals and interactive services. This fifth edition cancels and replaces the fourth edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) extension of upper frequency range limit for cable network equipment in the forward path from 1000 MHz to 1218 MHz (optional up to 1794 MHz); b) extension of upper frequency range limit for cable network equipment in the return path from 85 MHz to 204 MHz; c) integration and update of IEC 60728-3-1 content; d) integration and update of the Technical Specification CLC\/TS 50083-3-3 content; e) deletion of specifications and test methods for obsolete analogue parameters; f) additional normative references; g) additional terms and definitions and abbreviations.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 3.2 Symbols <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 3.3 Abbreviated terms 4 Methods of measurement 4.1 General <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 4.2 Linear distortion 4.2.1 Return loss 4.2.2 Group delay variation <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 4.3 Non-linear distortion 4.3.1 General 4.3.2 Types of measurements <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 4.3.3 Intermodulation <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Figures Figure 1 \u2013 Basic arrangement of test equipment for evaluation of the ratio of signal to intermodulation product <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 4.3.4 Composite triple beat <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figure 2 \u2013 Connection of test equipment for the measurement of non-linear distortion by composite beat <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 4.3.5 Composite second order beat 4.3.6 Method of measurement of non-linearity for pure digital channel load <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Figure 3 \u2013 BER measurement test configuration <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Tables Table 1 \u2013 Measurement parameters for full channel load <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Figure 4 \u2013 CINR measurement test setup <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Figure 5 \u2013 Plot of CINR in dB curve (forward path) versus EUT channel output signal level in dB(V <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 4.3.7 Hum modulation of carrier Figure 6 \u2013 Carrier\/hum ratio <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Figure 7 \u2013 Test set-up for local-powered objects Figure 8 \u2013 Test set-up for remote-powered objects <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Figure 9 \u2013 Oscilloscope display <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | 4.4 Noise figure 4.4.1 General 4.4.2 Equipment required 4.4.3 Connection of equipment Figure 10 \u2013 Measurement of noise figure <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 4.4.4 Measurement procedure 4.5 Crosstalk attenuation 4.5.1 Crosstalk attenuation for loop-through ports 4.5.2 Crosstalk attenuation for output ports <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | 4.6 Measurement of noise power ratio (NPR) 4.6.1 General Figure 11 \u2013 Measurement of crosstalk attenuation for loop through ports of multi-switches <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | 4.6.2 Equipment required 4.6.3 Connection of equipment Figure 12 \u2013 Characteristic of the noise filter Figure 13 \u2013 Test setup for the non-linearity measurement Table 2 \u2013 Notch filter frequencies <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | 4.6.4 Measurement procedure 4.6.5 Presentation of the results <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | 4.7 Immunity to surge voltages 4.7.1 General 4.7.2 Equipment required 4.7.3 Connection of equipment Figure 14 \u2013 Presentation of the result of NPR <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | 4.7.4 Measurement procedure 5 Equipment requirements 5.1 General requirements 5.2 Safety 5.3 Electromagnetic compatibility (EMC) 5.4 Frequency range 5.5 Impedance and return loss Figure 15 \u2013 Measurement set-up for surge immunity test <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | 5.6 Gain 5.6.1 Minimum and maximum gain 5.6.2 Gain control 5.6.3 Slope and slope control 5.7 Flatness 5.8 Test points 5.9 Noise figure Table 3 \u2013 Example of return loss requirements <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | 5.10 Non-linear distortion 5.10.1 General 5.10.2 Second-order distortion 5.10.3 Third order distortion 5.10.4 Composite triple beat 5.10.5 Composite second order 5.10.6 Maximum operating level for pure digital channel load <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | 5.11 Hum modulation 5.12 Power supply 5.13 Environmental 5.13.1 General 5.13.2 Transportation 5.13.3 Installation or maintenance 5.13.4 Operation <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | 5.13.5 Energy efficiency of equipment 5.14 Marking 5.14.1 Marking of equipment 5.14.2 Marking of ports 5.15 Requirements for multi-switches 5.15.1 Control signals for multi-switches 5.15.2 Amplitude frequency response flatness 5.15.3 Return loss 5.15.4 Through loss 5.15.5 Isolation 5.15.6 Crosstalk attenuation <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | 5.15.7 Satellite IF to terrestrial signal isolation 5.16 Immunity to surge voltages 5.16.1 Degrees of testing levels 5.16.2 Recommendation of testing level degree Table 4 \u2013 Parameters of surge voltages for different degrees of testing levels Table 5 \u2013 Recommendations for degree of testing levels <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Annexes Annex A (normative) Test carriers, levels and intermodulation products A.1 Two signal tests for second- and third-order products A.1.1 Intermodulation products with test signals at frequencies \u0192a and \u0192b, see Table A.1 A.1.2 Signal levels Figure A.1 \u2013 An example showing products formed when 2\u0192a > \u0192b Table A.1 \u2013 Intermodulation products with two signals <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | A.2 Three signal tests for third order products \u2013 Intermodulation products with test signals at frequencies \u0192a, \u0192b and \u0192c , see Table A.2 and Figure A.3 Figure A.2 \u2013 An example showing products formed when 2\u0192a < \u0192b Figure A.3 \u2013 Products of the form \u0192a \u00b1 \u0192b \u00b1 \u0192c Table A.2 \u2013 Intermodulation products with three signals <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Annex B (informative) Test frequency plan for composite triple beat (CTB), composite second order (CSO) Table B.1 \u2013 Frequency allocation plan <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | Annex C (informative) Measurement errors that occur due to mismatched equipment Figure C.1 \u2013 Error concerning return loss measurement Figure C.2 \u2013 Maximum ripple <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | Annex D (informative) Examples of measurement channels D.1 Operating frequency range 110 MHz to 1 006 MHz D.2 Operating frequency range 110 MHz to 862 MHz D.3 Operating frequency range 258 MHz to 1 218 MHz <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Cable networks for television signals, sound signals and interactive services – Active wideband equipment for cable networks (TA 5)<\/b><\/p>\n |