IEC 60728-1:2014 is applicable to any cable network (including individual receiving systems) having in the forward path a coaxial cable output and primarily intended for television and sound signals operating between about 30 MHz and 3 000 MHz. It specifies the basic methods of measurement of the operational characteristics of cable network having coaxial cable outputs in order to assess the performance of these systems and their performance limits. This fifth edition cancels and replaces the fourth edition published in 2007 and constitutes a technical revision. It includes the following changes: – redrafting of measurement procedure and updating of performance requirements to include DVB-T2 signals; – reference to IEC 60728-1-1 for home networks; – reference to IEC 60728-1-2 for performance requirements at system outlet in operation.

PDF Catalog

PDF Pages	PDF Title
11	CONTENTS
19	INTRODUCTION
20	1 Scope 2 Normative references
22	3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions
34	3.2 Symbols
36	3.3 Abbreviations
38	4 Methods of measurement at system outlet 4.1 Performance limits
39	Tables Table 1 – Application of the methods of measurement
40	4.2 Mutual isolation between system outlets 4.2.1 Overview 4.2.2 Equipment required
41	4.2.3 Connection of the equipment 4.2.4 Measurement procedure Figures Figure 1 – Arrangement of test equipment for measurement of mutual isolation between system outlets
42	4.2.5 Presentation of the results 4.3 Amplitude response within a channel 4.3.1 Overview 4.3.2 Equipment required 4.3.3 Connection of the equipment
43	4.3.4 Measurement procedure Figure 2 – Arrangement of test equipment for measurement of frequency response within a channel
44	4.3.5 Presentation of the results Figure 3 – Interpretation of displays for measurement of frequency response within a channel
45	4.4 Chrominance-luminance gain and delay inequalities 4.4.1 Overview Figure 4 – Test signal (signal F for 625-line systems) employed for chrominance/luminance gain and delay inequality Figure 5 – Test signal (signal B2 for 625-line systems) employed for chrominance/luminance gain and delay inequality
46	4.4.2 Equipment required 4.4.3 Connection of the equipment 4.4.4 Measurement procedure Figure 6 – Arrangement of test equipment for measurement of chrominance/luminance gain and delay inequality
47	4.4.5 Presentation of the results Figure 7 – Displayed pulses: chrominance low and lagging Figure 8 – Displayed pulses: chrominance high and leading
48	4.5 Non-linear distortion 4.5.1 General 4.5.2 Intermodulation 4.5.3 Composite beat
49	Figure 9 – Connection of test equipment for the measurement of non-linear distortion by composite beat
51	Figure 10 – Weighting curve for 625-line system B, G and D1 (PAL): CW interference with no special (frequency offset) control Figure 11 – Weighting curve for 625-line system I (PAL): CW interference with no special (frequency offset) control
52	4.5.4 Composite crossmodulation Figure 12 – Weighting curve for 625-line systems D and K (PAL): CW interference with no special (frequency offset) control Figure 13 – Weighting curve for 625-line system L (SECAM): CW interference with no special (frequency offset) control
53	4.5.5 Intermodulation noise 4.5.6 Hum modulation of carriers Figure 14 – Hum modulation envelope
54	Figure 15 – Calibrated potential divider Figure 16 – Stable variable DC source
55	Figure 17 – Connection of equipment for measurement of hum modulation (DC method)
56	Figure 18 – Oscilloscope display Table 2 – Residual carrier reduction factors
57	Figure 19 – Connection of equipment for hum modulation measurement (AC method)
58	4.5.7 Differential gain and phase
59	Figure 20 – Signal D2
60	Figure 21 – Example of the modified staircase waveform
61	Figure 22 – Arrangement of test equipment for measurement of differential gain and phase
63	4.6 Carrier-to-noise ratio 4.6.1 Overview 4.6.2 Equipment required 4.6.3 Connection of the equipment Figure 23 – Arrangement of test equipment for carrier-to-noise ratio measurement
64	4.6.4 Measurement set-up 4.6.5 Measurement procedure
65	4.6.6 Presentation of the results 4.7 Echoes 4.7.1 Overview Figure 24 – Echo rating graticule
66	4.7.2 Equipment required 4.7.3 Connection of the equipment 4.7.4 Measurement procedure Figure 25 – Arrangement of test equipment for measurement of echo rating
67	4.7.5 Presentation of the results 4.8 AM-VSB television, FM radio and FM television signal level 4.8.1 General 4.8.2 Definitions for NTSC, PAL and SECAM systems 4.8.3 Equipment required 4.8.4 Measurement procedure
68	4.8.5 Presentation of the results 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 4.11.1 Overview
69	4.11.2 Basic assumptions and measurement interfaces Figure 26 – PSK modulation (QPSK, BPSK or TC8PSK) Figure 27 – DVB-S2 modulation (QPSK, 8PSK, 16APSK, 32APSK) Figure 28 – DVB-C QAM modulation
70	Figure 29 – DVB-T OFDM modulation Figure 30 – DVB-T2 OFDM modulation Figure 31 – Reference receiver for PSK demodulation (QPSK, BPSK or TC8PSK)
71	Figure 32 – Reference receiver for DVB-S2 demodulation (QPSK, 8PSK, 16APSK, 32APSK) Figure 33 – Reference receiver for QAM demodulation Figure 34 – Reference receiver for DVB-T OFDM demodulation Figure 35 – Reference receiver (buffer model) for DVB-T2 OFDM demodulation
72	4.11.3 Signal level for digitally modulated signals
73	4.11.4 RF signal-to-noise ratio SD,RF/N for digitally modulated signals
75	4.11.5 Bit error ratio (BER)
76	4.11.6 BER versus Eb/N0 or C/N Figure 36 – Test set-up for BER measurement
77	Figure 37 – Test set-up for BER measurement versus Eb/N0 or C/N and noise margin measurement
79	Figure 38 – Example of BER measurement versus Eb/N0 Figure 39 – Example of BER measurement versus C/N
80	4.11.7 Noise margin
81	4.11.8 Modulation error ratio (MER)
82	Figure 40 – Test set-up for modulation error ratio (MER) measurement and phase jitter measurement
83	4.11.9 Phase jitter Figure 41 – Example of constellation diagram for a 64 QAM modulation format
85	Figure 42 – Example of constellation diagram for a 64 QAM modulation format with arc sections due to phase jitter
86	4.11.10 Phase noise of an RF carrier Figure 43 – Test set-up for phase noise measurement
88	Figure 44 – Example of mask for phase noise measurements: PSK, APSK and QAM formats Figure 45 – Example of mask for phase noise measurements: OFDM format Table 3 – Frequency distance fm
89	5 Performance requirements at system outlet 5.1 General 5.2 Impedance 5.3 Requirements at the terminal input 5.3.1 General
90	5.3.2 Signal level 5.3.3 Other parameters 5.4 Carrier levels at system outlets 5.4.1 Minimum and maximum carrier levels Table 4 – Carrier signal levels at any system outlet (analogue signals)
91	Table 5 – RF signal levels at any system outlet (digital signals)
92	5.4.2 Carrier level differences Table 6 – Maximum level differences at any system outlet between distributed television channels
93	5.5 Mutual isolation between system outlets 5.5.1 Isolation between two subscribers 5.5.2 Isolation between individual outlets in one household 5.5.3 Isolation between forward and return path Table 7 – Mutual isolation
94	5.6 Frequency response within a television channel at any system outlet 5.6.1 Amplitude response 5.6.2 Group delay Table 8 – Residual carrier level at television or FM radio output within the same outlet or between two different outlets Table 9 – Amplitude response variation
95	5.7 Long-term frequency stability of distributed carrier signals at any system outlet Table 10 – Group delay variation
96	5.8 Random noise Table 11 – Maximum deviation of the conversion frequency for digitally modulated DVB signals Table 12 – Carrier-to-noise ratios at system outlet (analogue television)
97	Table 13 – RF signal-to noise ratio at system outlet (digital television)
98	5.9 Interference to television channels 5.9.1 Single-frequency interference Table 14 – Carrier-to-noise ratios at the system outlet (sound radio)
99	5.9.2 Single-channel intermodulation interference 5.9.3 Multiple frequency intermodulation interference 5.9.4 Intermodulation noise
100	5.9.5 Cross-modulation 5.10 Video baseband requirements 5.10.1 Differential gain and phase in any television channel 5.10.2 Echoes 5.11 Hum modulation of carriers in television channels Table 15 – Differential gain and phase in television channels
101	5.12 Requirements for data signal transmission 5.12.1 Data signals carried in the structure of a television signal 5.12.2 Data signals other than those carried within the structure of a television signal 5.13 Digitally modulated signals – Additional performance requirements 5.13.1 DVB (PSK, QAM, OFDM) performance
102	Table 16 – Modulation error ratio MER of DVB signals Table 17 – Phase jitter of a DVB signal
103	5.13.2 NICAM performance 5.13.3 DAB performance Table 18 – Phase noise of a DVB signal (PSK, APSK and QAM) Table 19 – Phase noise of a DVB-T signal (COFDM)
104	5.14 FM sound radio – Additional performance requirements 5.14.1 Amplitude response within an FM channel 5.14.2 Phase response within an FM channel 5.14.3 Interference within an FM channel 5.14.4 AM hum modulation on FM sound carriers 5.14.5 Echoes within an FM channel 6 Performance requirements at receiving antennas 6.1 General
105	6.2 Method of measurement of field strength 6.2.1 Overview 6.2.2 Equipment required 6.2.3 Connection of the equipment 6.2.4 Measurement procedure
107	6.2.5 Presentation of the results 6.3 Requirements 6.3.1 General 6.3.2 Field strength requirements
108	Table 20 – Minimum field strength levels recommended by ITU-R Table 21 – Minimum field strength levels recommended by CEPT:1997
109	6.3.3 Quality of received signals Table 22 – Minimum signal level at the headend input for the reception of analogue sound broadcasting Table 23 – Minimum signal level at the headend input for the reception of analogue television broadcasting
110	Table 24 – Minimum signal level at the headend input for the reception of DAB signals at an error ratio of 1 ( 10−4 and code rate 1/2 Table 25 – Minimum signal level and RF signal-to-noise ratio at the headend input for stationary reception of DVB-T signals
111	Table 26 – Minimum signal-to-noise ratio SD,RF/N at the headend input for DVB-T2 signals (LDPC block length 64 800 bit) Table 27 – Minimum signal level and carrier-to-noise ratio at the headend input for the reception of FM modulated satellite signals
112	Table 28 – Minimum RF signal-to-noise ratio at the headend input for the reception of DVB-S or DVB-S2 satellite signals (AWGN channel and FECFRAME length of 64 800) Table 29 – Minimum values for signal-to-disturbance ratio
113	6.3.4 Safety Table 30 – Minimum values for signal-to-echo ratio
114	6.3.5 Electromagnetic compatibility (EMC) 6.4 Interference reduction 6.4.1 General 6.4.2 Active antennas 7 Performance requirements at home network interfaces of cable networks 7.1 General
115	7.2 Requirements at HNI1 for passive coaxial home networks 7.2.1 General Figure 46 – Home network types used to define the requirements at HNI1 (coaxial)
116	7.2.2 Carrier levels at the HNI1 Table 31 – Signal level at HNI1 (analogue signals)
117	Table 32 – Signal level at HNI1 (digital signals)
118	Table 33 – Maximum level differences at HNI1
119	7.2.3 Mutual isolation between two HNI1 7.2.4 Frequency response within any television channel at HNI1 Table 34 – Mutual isolation between two HNI1 Table 35 – Amplitude response variation at HNI1
120	7.2.5 Long-term frequency stability of distributed carrier signals at HNI1 7.2.6 Random noise at the HNI1 7.2.7 Interference to television channels at HNI1 Table 36 – Group delay variation at HNI1
121	7.2.8 Return path requirements at HNI1 7.3 Requirements at HNI2 for active coaxial home networks 7.3.1 General 7.3.2 Carrier levels at the HNI2 Table 37 – Signal level at HNI2 (analogue signals)
122	Table 38 – Signal level at HNI2 (digital signals)
123	Table 39 – Maximum level differences at HNI2
124	7.3.3 Mutual isolation between two HNI2 7.3.4 Frequency response within any television channel at HNI2 7.3.5 Long-term frequency stability of distributed carrier signals at HNI2 Table 40 – Amplitude response variation at HNI2 Table 41 – Group delay variation at HNI2
125	7.3.6 Random noise at HNI2 Table 42 – Carrier-to-noise ratios at HNI2 (analogue television)
126	Table 43 – RF signal-to-noise ratios at HNI2 (digital television)
127	Table 44 – Carrier-to-noise ratios at HNI2 (sound radio)
128	7.3.7 Interference to television channels at the HNI2
129	7.3.8 Return path requirements at HNI2 7.4 Requirements at HNI3 and at system outlet or terminal input when the home network is mainly of balanced type 7.4.1 Overview 7.4.2 Requirements at HNI3
130	7.4.3 Requirements at system output 7.4.4 Additional requirements at HNI3 for upstream transmission Table 45 – Minimum signal level at coaxial terminal input (case A) or at coaxial system outlet (case B)
131	7.5 Requirements at HNI3 (Case C) 7.6 Requirements at HNI3 (Case D)
132	Annex A (informative)Reception of television signals
133	Figure A.1 – Example of a master antenna television system (MATV) for terrestrial reception
134	Figure A.2 – Example of the headend of a master antenna television system for satellite (SMATV) reception Figure A.3 – Example of a master antenna television system for terrestrial and satellite (SMATV) reception
135	Figure A.4 – Example of a cabled distribution system for television and sound signals
136	Figure A.5 – System model for downstream direction of a cable network for television and sound signals (CATV)
137	Annex B (normative)Calibration of modulation depth B.1 Equipment required B.2 Connection of the equipment B.3 Calibration procedure Figure B.1 – Calibration of modulation depth
138	Annex C (normative)Equipment required –Additional items C.1 Measuring receiver preamplifier C.2 Measuring receiver input filter
139	Annex D (normative)Preliminary checks on the measuring equipmentfor carrier-to-noise ratio D.1 Noise D.2 Intermodulation D.3 Overload
140	Annex E (normative)Correction factors E.1 Level correction factor Cm E.2 Bandwidth correction factor Cb
141	Annex F (normative)Calibration of the measuring receiver
142	Annex G (normative)Correction factors for noise G.1 Signal level measurement G.2 Noise level measurement Table G.1 – Noise correction factor
143	Figure G.1 – Noise correction factor CF versus measured level difference D
144	Annex H (normative)Null packet and PRBS definitions H.1 Null packet definition
145	H.2 PRBS definition Table H.1 – Null transport stream packet definition
146	Annex I (normative)Digital signal level and bandwidth I.1 RF/IF power (carrier) I.2 Bandwidth of a digital signal I.2.1 Occupied bandwidth
147	I.2.2 Noise bandwidth I.2.3 Equivalent signal bandwidth
148	I.3 Examples Table I.1 – Examples of bandwidths for digital modulation techniques
149	Annex J (normative)Correction factor for a spectrum analyser
150	Annex K (informative)Differences in some countries K.1 Subclause 3.1.58, Norway K.2 Subclause 5.4.1, Japan, Netherlands K.2.1 Japan K.2.2 Netherlands K.3 Subclause 5.4.2, Japan Table K.1 – Carrier signal levels at any system outlet (Japan) Table K.2 – Carrier signal levels at any system outlet (Netherlans)
151	K.4 Subclause 5.5.1, Japan Table K.3 – Maximum level differences at any system outlet between distributed television channels (Japan) Table K.4 – Mutual isolation (Japan)
152	K.5 Subclause 5.6.1, Japan K.6 Subclause 5.6.2, Netherlands Figure K.1 – Mask group delay characteristic for PAL signalswith FM-FM sound (Netherlands) Table K.5 – Amplitude response variation (Japan)
153	K.7 Subclause 5.7, Japan K.8 Subclause 5.8, Japan Table K.6 – Frequency stability requirements (Japan) Table K.7 – Carrier-to-noise ratios at system outlet (Japan)
154	K.9 Subclause 5.9.1, Japan, Netherlands K.9.1 Japan Figure K.2 – Single-frequency interference (VSB-AM NTSC) (Japan) Table K.8 – Single-frequency interference (Japan)
155	K.9.2 Netherlands Figure K.3 – Single-frequency interference (64 QAM digital) (Japan) Figure K.4 – Single-frequency interference (256 QAM digital) (Japan) Table K.9 – Single-frequency interference (Netherlands)
156	K.10 Subclause 5.9.5, Japan K.11 Subclause 5.10.2, Netherlands, Japan K.11.1 Netherlands K.11.2 Japan Figure K.5 – Requirement for echo loss in relation to the time delay of the reflected signal (Netherlands) Table K.10 – Cross-modulation (Japan) Table K.11 – Echoes requirements (Japan)
157	K.12 Subclause 5.11, Japan Figure K.6 – Echoes (VSB-AM NTSC) (Japan) Figure K.7 – Echoes (FM NTSC) (Japan) Table K.12 – Hum modulation of carriers in television channels (Japan)
158	K.13 Subclause 5.12.1, Denmark K.14 Subclause 5.13.1.5, Japan K.15 Subclause 5.14.3, Netherlands K.16 Clause 7, Japan Table K.13 – Phase noise of an RF carrier (Japan)
159	Bibliography

Published By	Publication Date	Number of Pages
BSI	2014	162


PDF Format	Searchable	Printable	Preview Now

Status	Under Review
Pages	162
Publication Date	2014-09-30
ISBN	978 0 580 79843 6
Standard Number	BS EN 60728-1:2014
Title	Cable networks for television signals, sound signals and interactive services – System performance of forward paths
Identical National Standard Of	IEC 60728-1:2014, EN 60728-1:2014
Replaces	BS EN 60728-1:2008
Descriptors	Television systems, Frequency modulation, Visual signals, Radio networks, Frequency response, Signal distortion, Performance testing, Coaxial cables, Television networks, Radio disturbances, Performance, Circuits, Electrical impedance, Environment (working), Calibration, Telecommunication, Reception, Broadcasting networks, Signal level, Cable television, Testing conditions, Test equipment, Acoustic signals, Communication networks, Television channels, Wire transmission (telecommunication), Noise (spurious signals), Signal-to-noise ratio, Telecommunication systems, Electrical measurement, Radio channels
Publisher	BSI
Committee	EPL/100
ICS Codes	33.060.40 - Cabled distribution systems

BS EN 60728-1:2014

PDF Catalog

Related products

BS EN 60728-1-1:2014