Already a subscriber? 
MADCAD.com Free Trial
Sign up for a 3 day free trial to explore the MADCAD.com interface, PLUS access the
2009 International Building Code to see how it all works.
If you like to setup a quick demo, let us know at support@madcad.com
or +1 800.798.9296 and we will be happy to schedule a webinar for you.
Security check
Please login to your personal account to use this feature.
Please login to your authorized staff account to use this feature.
Are you sure you want to empty the cart?
BS EN 60728-101:2017 Cable networks for television signals, sound signals and interactive services - System performance of forward paths loaded with digital channels only, 2018
- National foreword
- CONTENTS
- FOREWORD
- INTRODUCTION
- Figures [Go to Page]
- Figure 1 – Example of a master antenna television system (MATV) for terrestrial reception
- Figure 2 – Example of the headend of a master antenna television system for satellite (SMATV) reception
- Figure 3 – Example of a master antenna television system for terrestrial and satellite (SMATV) reception
- Figure 4 – Example of a cabled distribution system for television and sound signals
- Figure 5 – System model for downstream direction of a cable network for television and sound signals (CATV)
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, symbols and abbreviations [Go to Page]
- 3.1 Terms and definitions
- 3.2 Symbols
- 3.3 Abbreviations
- 4 Methods of measurement at system outlet [Go to Page]
- 4.1 General
- Tables [Go to Page]
- Table 1 – Application of the methods of measurement
- 4.2 Basic assumptions and measurement interfaces
- Figure 6 – PSK modulation (QPSK, BPSK or TC8PSK)
- Figure 7 – DVB-S2 modulation (QPSK, 8PSK, 16APSK, 32APSK)
- Figure 8 – DVB-C QAM modulation
- Figure 9 – DVB-C2 QAM modulation
- Figure 10 – DVB-T OFDM modulation
- Figure 11 – DVB-T2 OFDM modulation
- Figure 12 – Reference receiver for PSK demodulation (QPSK, BPSK or TC8PSK)
- Figure 13 – Reference receiver for DVB-S2 demodulation(QPSK, 8PSK, 16APSK, 32APSK)
- Figure 14 – Reference receiver for DVB-C QAM demodulation
- Figure 15 – Reference receiver for DVB-C2 demodulation
- 4.3 Signal level [Go to Page]
- 4.3.1 General
- Figure 16 – Reference receiver for DVB-T OFDM demodulation
- Figure 17 – Reference receiver (buffer model) for DVB-T2 OFDM demodulation [Go to Page]
- 4.3.2 Equipment required
- 4.3.3 Connection of the equipment
- 4.3.4 Measurement procedure
- 4.3.5 Presentation of the results
- 4.4 RF signal-to-intermodulation and noise ratio S/IN [Go to Page]
- 4.4.1 General
- 4.4.2 Equipment required
- 4.4.3 Connection of the equipment
- 4.4.4 Measurement procedure
- 4.4.5 Presentation of the results
- 4.5 Bit error ratio (BER) [Go to Page]
- 4.5.1 General
- 4.5.2 Equipment required
- 4.5.3 Connection of the equipment
- 4.5.4 Measurement procedure
- Figure 18 – Test set-up for BER measurement [Go to Page]
- 4.5.5 Presentation of the results
- 4.6 BER versus S/N [Go to Page]
- 4.6.1 General
- 4.6.2 Equipment required
- 4.6.3 Connection of the equipment
- 4.6.4 Measurement procedure
- Figure 19 – Test set-up for BER measurement versus S/N [Go to Page]
- 4.6.5 Presentation of the results
- 4.7 System operating levels and margins [Go to Page]
- 4.7.1 General
- Figure 20 – Example of BER measurement versus S/N
- Figure 21 – Example of S/IN and BER versus signal level Sfor a cable network without optical link
- Figure 22 – Optical and coaxial subsystems of an HFC network [Go to Page]
- 4.7.2 White noise signal margin (SMWN)
- 4.7.3 Intermodulation noise signal margin (SMIN)
- Figure 23 – Test set-up for SMWN and SMIN measurement
- 4.8 Modulation error ratio (MER) [Go to Page]
- 4.8.1 General
- 4.8.2 Equipment required
- 4.8.3 Connection of the equipment
- 4.8.4 Measurement procedure
- Figure 24 – Test set-up for modulation error ratio (MER) measurement and phase jitter measurement [Go to Page]
- 4.8.5 Presentation of the results
- 4.9 Phase jitter [Go to Page]
- 4.9.1 General
- 4.9.2 Equipment required
- Figure 25 – Example of constellation diagram for a 64 QAM modulation format [Go to Page]
- 4.9.3 Connection of the equipment
- 4.9.4 Measurement procedures
- Figure 26 – Example of constellation diagram for a 64 QAM modulation format with arcs due to phase jitter [Go to Page]
- 4.9.5 Presentation of the results
- 4.10 Phase noise of an RF carrier [Go to Page]
- 4.10.1 General
- 4.10.2 Equipment required
- 4.10.3 Connection of the equipment
- 4.10.4 Measurement procedure
- Figure 27 – Test set-up for phase noise measurement [Go to Page]
- 4.10.5 Presentation of the results
- Figure 28 – Example of mask for phase noise measurements: PSK, APSK and QAM formats
- Figure 29 – Example of mask for phase noise measurements: OFDM format
- Table 2 – Frequency distance fm
- 4.11 Mutual isolation between system outlets [Go to Page]
- 4.11.1 General
- 4.11.2 Equipment required
- 4.11.3 Connection of the equipment
- 4.11.4 Measurement procedure
- Figure 30 – Arrangement of test equipment for measurement of mutual isolation between system outlets [Go to Page]
- 4.11.5 Presentation of the results
- 4.12 Amplitude response within a channel [Go to Page]
- 4.12.1 General
- 4.12.2 Equipment required
- 4.12.3 Connection of the equipment
- 4.12.4 Measurement procedure
- Figure 31 – Arrangement of test equipment for measurement of frequency response within a channel
- Figure 32 – Interpretation of displays for measurement of frequency response within a channel [Go to Page]
- 4.12.5 Presentation of the results
- 4.13 Non-linear distortion [Go to Page]
- 4.13.1 General
- 4.13.2 Intermodulation
- 4.13.3 Composite crossmodulation
- 5 Performance requirements at system outlet [Go to Page]
- 5.1 General requirements
- 5.2 Overview
- 5.3 Impedance
- 5.4 Requirements at the terminal input [Go to Page]
- 5.4.1 General
- 5.4.2 Signal level
- 5.4.3 Other parameters
- 5.5 RF signal levels at system outlets [Go to Page]
- 5.5.1 Minimum and maximum RF signal levels
- Table 3 – Digital signal levels at any system outlet [Go to Page]
- 5.5.2 RF signal level differences
- 5.6 Mutual isolation between system outlets [Go to Page]
- 5.6.1 Isolation between two subscribers
- 5.6.2 Isolation between individual outlets in one household
- 5.6.3 Isolation between forward and return paths
- Table 4 – Maximum level differences at any system outlet between distributed television channels
- 5.7 Frequency response within a television channel at any system outlet [Go to Page]
- 5.7.1 Amplitude response
- 5.7.2 Group delay
- Table 5 – Residual carrier level at television or FM radio output within the same outlet or between two different outlets
- Table 6 – Amplitude response variation
- 5.8 Long-term frequency stability of distributed signals at any system outlet
- Table 7 – Group delay variation
- Table 8 – Maximum deviation of conversion frequency for digitally modulated DVB signals
- 5.9 Random noise
- Table 9 – RF signal-to noise ratio at system outlet (1 of 2)
- 5.10 Interference to television channels [Go to Page]
- 5.10.1 Single-frequency interference
- 5.10.2 Intermodulation noise
- 5.11 DVB (PSK, QAM, OFDM) additional performance requirements [Go to Page]
- 5.11.1 BER
- 5.11.2 PER
- 5.11.3 White noise signal margin (SMWN)
- 5.11.4 Intermodulation noise signal margin (SMIN)
- 5.11.5 MER
- 5.11.6 Phase noise of a DVB signal
- Table 10 – Modulation error ratio MER of DVB signals
- 5.12 DAB performance
- Table 11 – Phase noise of a DVB signal (PSK, APSK and QAM)
- Table 12 – Phase noise of a DVB-T or DVB-C2 signal (COFDM)
- 6 Performance requirements at receiving antennas [Go to Page]
- 6.1 General
- 6.2 Method of measurement of field strength [Go to Page]
- 6.2.1 General
- 6.2.2 Equipment required
- 6.2.3 Connection of the equipment
- 6.2.4 Measurement procedure
- 6.2.5 Presentation of the results
- 6.3 Requirements [Go to Page]
- 6.3.1 General
- 6.3.2 Field strength requirements
- Table 13 – Minimum field strength levels recommended by CEPT [3] [Go to Page]
- 6.3.3 Quality of received signals
- Table 14 – Minimum signal level at the headend input for the reception of DAB signals
- Table 15 – Minimum signal level and RF signal-to-noise ratio at the headend input for stationary reception of DVB-T signals
- Table 16 – Minimum signal-to-noise ratio S/N at the headend input for DVB-T2 signals
- Table 17 – Minimum RF signal-to-noise ratio at the headend input for the reception of DVB-S or DVB-S2 satellite signals [Go to Page]
- 6.3.4 Safety
- 6.3.5 Electromagnetic compatibility (EMC)
- 6.4 Interference reduction [Go to Page]
- 6.4.1 General
- 6.4.2 Active antennas
- 7 Performance requirements at home network interfaces of cable networks [Go to Page]
- 7.1 General
- 7.2 Requirements at HNI1 for passive coaxial home networks [Go to Page]
- 7.2.1 General
- Figure 33 – Home network types used to define the requirements at several HNI types (coaxial) [Go to Page]
- 7.2.2 Signal levels at the HNI1
- Table 18 – Signal level at HNI1 (1 of 2) [Go to Page]
- 7.2.3 Mutual isolation between two HNI1
- 7.2.4 Frequency response within any television channel at the HNI1
- Table 19 – Maximum level differences at HNI1 [Go to Page]
- 7.2.5 Long-term frequency stability of distributed RF signals at HNI1
- 7.2.6 Random noise at the HNI1
- 7.2.7 Interference to television channels at the HNI1
- Table 20 – Amplitude response variation at HNI1
- Table 21 – Group delay variation at HNI1 [Go to Page]
- 7.2.8 Return path requirements at the HNI1
- 7.3 Requirements at HNI2 for active coaxial home networks [Go to Page]
- 7.3.1 General
- 7.3.2 RF signal levels at the HNI2
- Table 22 – Signal level at HNI2 (1 of 2) [Go to Page]
- 7.3.3 Mutual isolation between two HNI2
- 7.3.4 Frequency response within any television channel at the HNI2
- Table 23 – Maximum level differences at HNI2 [Go to Page]
- 7.3.5 Long-term frequency stability of distributed RF signals at HNI2
- 7.3.6 Random noise at HNI2
- Table 24 – Amplitude response variation at HNI2
- Table 25 – Group delay variation at HNI2
- Table 26 – Minimum RF signal-to-noise ratios at HNI2 (1 of 2) [Go to Page]
- 7.3.7 Interference to television channels at the HNI2
- 7.3.8 Return path requirements at the HNI2
- 7.4 Requirements at HNI3 and at system outlet or terminal input when the home network is mainly of balanced type [Go to Page]
- 7.4.1 General
- 7.4.2 Requirements at HNI3
- 7.4.3 Requirements at system output
- 7.4.4 Additional requirements at HNI3 for upstream transmission
- 7.5 Requirements at HNI3 (case C)
- 7.6 Requirements at HNI3 (case D)
- Table 27 – Minimum signal level at coaxial terminal input (case A) or at coaxial system outlet (case B)
- Annex A (normative)Correction factors for noise [Go to Page]
- A.1 Signal level measurement
- A.2 Noise level measurement
- Table A.1 – Noise correction factor
- Figure A.1 – Noise correction factor CF versus measured level difference D
- Annex B (normative)Null packet and PRBS definitions [Go to Page]
- B.1 Null packet definition
- Table B.1 – Null transport stream packet definition
- B.2 PRBS definition
- Annex C (normative)Digital signal level and bandwidth [Go to Page]
- C.1 RF/IF power ("carrier")
- C.2 Bandwidth of a digital signal [Go to Page]
- C.2.1 Occupied bandwidth
- C.2.2 Noise bandwidth
- C.2.3 Equivalent signal bandwidth
- C.3 Examples
- Table C.1 – Examples of bandwidths for digital modulation techniques
- Annex D (normative)Correction factor for a spectrum analyser
- Annex E (informative)Differences in some countries [Go to Page]
- E.1 Subclause 3.1.48, Norway
- E.2 Subclause 5.5.1, Japan
- E.3 Subclause 5.5.2, Japan
- E.4 Subclause 5.6.1, Japan
- E.5 Subclause 5.7.1, Japan
- E.6 Subclause 5.7.2 Japan
- E.7 Subclause 5.8, Japan
- E.8 Subclause 5.9, Japan
- E.9 Subclause 5.10.1, Japan
- E.10 Subclause 5.11.6, Japan
- Figure E.1 – Single-frequency interference (64 QAM digital) (Japan)
- Figure E.2 – Single-frequency interference (256 QAM digital) (Japan)
- E.11 Subclause 6.3.3, Japan
- E.12 Clause 7, Japan
- Bibliography [Go to Page]
