Standards and deliverables of EN 60728 series deal with cable networks including equipment and associated methods of measurement for headend reception, processing and distribution of television and sound signals and for processing, interfacing and transmitting all kinds of data signals for interactive services using all applicable transmission media. These signals are typically transmitted in networks by frequency-multiplexing techniques.

This includes for instance

regional and local broadband cable networks,
extended satellite and terrestrial television distribution systems,
individual satellite and terrestrial television receiving systems,

and all kinds of equipment, systems and installations used in such cable networks, distribution and receiving systems.

The extent of this standardization work is from the antennas and/or special signal source inputs to the headend or other interface points to the network up to the terminal input of the customer premises equipment.

The standardization work will consider coexistence with users of the RF spectrum in wired and wireless transmission systems.

The standardization of any user terminals (i.e. tuners, receivers, decoders, multimedia terminals etc.) as well as of any coaxial, balanced and optical cables and accessories thereof is excluded.

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PDF Pages	PDF Title
6	Foreword
7	1 Scope 1.1 General 1.2 Specific scope of CLC/TR 50083-2-1
8	2 Normative references 3 Term, definitions, symbols and abbreviations 3.1 Terms and definitions
12	3.2 Symbols
13	3.3 Abbreviations 4 Considerations on EMC measurements 4.1 General
14	4.2 General EMC measurement considerations Figure 1 – Radiated and conducted emissions measurement using a measuring receiver Figure 2 – Radiated and conducted emissions measurement using a spectrum analyser
15	4.3 Envelope (peak) detection mode Figure 3 – Example of the output signal from an envelope detector with two carriers within the IF filter bandwidth 4.4 Quasi-peak detection mode
16	Figure 4 – The quasi-peak detector output depends on impulse repetition frequency 4.5 Average detection mode Figure 5 – Average detection mode where the envelope detector signal output is filtered with a low-pass filter of bandwidth much less than RBW of IF filter 5 EMC measurement apparatus 5.1 Measuring receiver 5.1.1 General
17	Figure 6 – Electrical circuit of a measuring receiver detector 5.1.2 The envelope detector 5.1.3 The peak detector 5.1.4 The quasi-peak detector
18	Table 1 – Time constants for quasi-peak detector 5.2 EMC analyser
19	5.3 Response of the measuring receiver (or EMC analyser) to disturbing signals 5.3.1 Sinusoidal signals Figure 7 – Amplitude modulated waveform at the detector input Table 2 – Meter readings with various types of detectors
20	5.3.2 Analogue television signals Figure 8 – Analogue television signal modulated waveform 5.3.3 Impulse disturbance signals 5.3.3.1 General
21	Table 3 – Test pulse characteristics for quasi-peak measuring receivers Figure 9 – Pulse response curve of quasi-peak detector receivers to different pulse repetition frequencies (PRF)
22	5.3.3.2 Relationship between indication of average and quasi-peak measuring receiver 5.3.3.3 Relationship between indication of RMS meter and quasi-peak meter
23	Table 4 – Response to impulse disturbance signals with various types of detectors 5.3.4 Random impulse noise signals
24	Figure 10 – Random noise modulated waveform at the detector input
25	Table 5 – Response to random signals with various types of detectors 5.4 Response of a spectrum analyser to disturbing signals 5.5 Correction factors for bandwidth and detectors 6 Measurement of analogue TV modulated signals 6.1 General considerations
26	6.2 Correction factors for bandwidth and detectors 7 Measurement of QAM modulated signals 7.1 Peak to average ratio Figure 11 – Example of I-Q diagram (constellation diagram) for QAM signals
27	Table 6 – Peak-to-average ratios for QAM modulated signals 7.2 Correction factors for bandwidth and detectors
28	7.3 Correction factors between different detectors Table 7 – Correction factors Z (dB) for transforming a measured power into RMS power over the whole signal bandwidth
29	7.4 Fraction of the time the mean power is exceeded Table 8 – Fraction of the time where the mean level is exceeded for 16 QAM and 32 QAM signals. Bolometer measurements 7.5 Linear operation of amplifiers 7.6 Measurements on cable modems
30	7.7 Measuring equipment setting for QAM signal level measurement
31	Annex A (informative) Field strength measurement A.1 General A.2 Connection of the equipment A.3 Measurement procedure A.3.1 Analogue modulated signals
32	A.3.2 Digitally modulated signals
33	A.4 Field strength due to a transmitted power
34	A.5 Received voltage due to a radiated field Figure A.1 – Antenna coefficient for isotropic antenna, λ/2 dipole and log-periodic antenna with gain G = 6 dB respect to isotropic antenna
35	Table A.1 – Received signal level UR with a λ/2 dipole in a field E = 27 dB(μV)
36	Annex B (informative) LISN (Line Impedance Stabilisation Network) Figure B.1 – LISN circuit for one side of the line relative to earth ground Figure B.2 – LISN impedance at the EUT port, versus frequency
37	Bibliography

Status	Definitive
Pages	40
Publication Date	2014-10-31
ISBN	978 0 580 85961 8
Standard Number	PD CLC/TR 50083-2-1:2014
Title	Cable networks for television signals, sound signals and interactive services – Electromagnetic compatibility measurements
Descriptors	Radiofrequencies, Radio networks, Noise (spurious signals), Communication cables, Telecommunication systems, Television networks, Radiocommunication, Acoustic signals, Wire transmission (telecommunication), Visual signals, Communication networks, Signal transmission, Cable television, Television systems, Domestic, Coaxial cables, Telecommunication, Broadcasting networks
Publisher	BSI
Committee	EPL/100
ICS Codes	33.060.40 - Cabled distribution systems


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BSI PD CLC/TR 50083-2-1:2014

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