IEC TR 60728-3-2:2016

Cable networks for television signals, sound signals and interactive services - Part 3-2: Method of measurement of 5^th order non-linearity for active electronic equipment using five carriers

IEC TR 60728-3-2:2016(E) is applicable to the measurement of 5th order non-linearity for active electronic equipment which carries only digitally modulated television signals, sound signals and signals for interactive services. This method of measurement is specifically applicable to MATV installations but could be applied to broadband and channel selective amplifiers used in all kinds of cable networks.

General Information

• Status: Published
• Publication Date: 04-Oct-2016
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.060.40 - Cabled distribution systems
• ICS: 33.170 - Television and radio broadcasting
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Current Stage: PPUB - Publication issued
• Start Date: 31-Dec-2016
• Completion Date: 05-Oct-2016

Standards Content (Sample)

IEC TR 60728-3-2 ®
Edition 1.0 2016-10
TECHNICAL
REPORT
colour
inside
Cable networks for television signals, sound signals and interactive services –
th
Part 3-2: Method of measurement of 5 order non-linearity for active electronic
equipment using five carriers
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IEC TR 60728-3-2 ®
Edition 1.0 2016-10
TECHNICAL
REPORT
colour
inside
Cable networks for television signals, sound signals and interactive services –

th
Part 3-2: Method of measurement of 5 order non-linearity for active electronic

equipment using five carriers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.060.40; 33.170 ISBN 978-2-8322-3646-8

– 2 – IEC TR 60728-3-2:2016 © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Terms, definitions, symbols and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Symbols . 9
3.3 Abbreviated terms . 9
th
4 Method of measurement of 5 order non-linearity for active electronic equipment
using five carriers . 10
4.1 General . 10
4.2 Equipment required . 11
4.3 Connection of the equipment . 11
rd th
4.4 Measurement procedure for 3 order and 5 order intermodulation
products . 11
nd
4.5 Measurement procedure for 2 order intermodulation products . 13
4.6 Presentation of the results . 13
4.7 Estimated maximum usable output level with a higher number of channels . 14
4.8 Setting of the 5 carriers frequencies for narrow-band equipment . 14
5 Equipment characteristics required to be published . 14
6 Example of measurement results . 15
Annex A (informative) Examples of measurement frequencies for channel spacing of
7 MHz and 8 MHz . 16
A.1 Wide-band equipment . 16
A.1.1 General . 16
A.1.2 Operating frequency range: VHF . 16
A.1.3 Operating frequency range: UHF . 16
A.2 Narrow-band equipment . 17
A.2.1 General . 17
A.2.2 Operating frequency range: VHF . 17
A.2.3 Operating frequency range: UHF . 17
Annex B (informative) Examples of measurement frequencies for channel spacing of
6 MHz. 20
B.1 Wide-band equipment . 20
B.1.1 General . 20
B.1.2 Operating frequency range: VHF . 20
B.1.3 Operating frequency range: UHF . 20
B.2 Narrow-band equipment . 21
B.2.1 General . 21
B.2.2 Operating frequency range: VHF . 21
B.2.3 Operating frequency range: UHF . 21
Bibliography . 24

Figure 1 – Measurement configuration with 5 carriers . 11
Figure 2 – The five carriers equally spaced at distance D and the intermodulation
products . 12

Figure 3 – Example of measurement results using the measuring method with 5
carriers . 15

Table A.1 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in VHF – Band III . 16
Table A.2 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band IV . 16
Table A.3 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band V (Low part) . 16
Table A.4 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band V (High part) . 17
Table A.5 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in VHF – Band III, narrow-band equipment . 17
Table A.6 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band IV, narrow-band equipment . 18
Table A.7 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band V, narrow-band equipment . 19
Table B.1 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in VHF – Band III . 20
Table B.2 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band IV . 20
Table B.3 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band V (Low part) . 20
Table B.4 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band V (High part) . 21
Table B.5 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in VHF – Band III, narrow-band equipment . 21
Table B.6 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band IV, narrow-band equipment . 22
Table B.7 – Allocation of measurement carrier frequencies (MHz) and intermodulation
products in UHF – Band V, narrow-band equipment . 23

– 4 – IEC TR 60728-3-2:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CABLE NETWORKS FOR TELEVISION SIGNALS,
SOUND SIGNALS AND INTERACTIVE SERVICES –

th
Part 3-2: Method of measurement of 5 order non-linearity
for active electronic equipment using five carriers

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