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Edition 1 .0 201 6-04

I N TE R N ATI ON AL
STAN DAR D

N OR M E
I N TE R N ATI ON ALE

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Cabl e n etworks for tel evi si on si g n al s, sou n d si g n al s an d i n teracti ve servi ces –
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Parti e 1 01 : Perfo rm an ces d es systèm es d e voi e d i recte so u m i s à u n e ch arg e d e

IEC 60728-1 01 :201 6-04(en-fr)

porteu ses excl u si vem en t n u m éri q u es


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I EC 60728-1 01
®

Edition 1 .0 201 6-04

I N TER N ATI ON AL
STAN DAR D

N OR M E
I N TER N ATI ON ALE

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Cabl e n etwo rks fo r tel evi si on si g n al s, sou n d si g n al s an d i n teracti ve servi ces –
Part 1 01 : System perform an ce of forward path s l oad ed wi th d i g i tal ch an n el s on l y

R éseau x d e d i stri bu ti o n par câbl es pou r si g n au x d e tél évi si on , si g n au x d e
rad i o d i ffu si on son ore et servi ces i n téracti fs –
Parti e 1 01 : Perfo rm an ces d es systèm es d e voi e d i recte so u m i s à u n e ch arg e d e
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I EC 60728-1 01 :201 6 © I EC 201 6

CONTENTS
FOREWORD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
I N TRODU CTI ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0
1
Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5
2
N ormati ve references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5
3
Terms, defini ti ons, sym bols and abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7
3. 1
Terms an d defin i tions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7
3. 2
Sym bols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3. 3

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4
M eth ods of m easuremen t at system ou tl et . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4. 2
Basic assu mptions an d m easu remen t in terfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4. 3
Sig n al level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4. 3. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4. 3. 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4. 3. 3
Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4. 3. 4
M easu remen t procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4. 3. 5
Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4. 4
RF sig nal-to-in term odu lation and noise rati o S/IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4. 4. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4. 4. 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4. 4. 3
Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4. 4. 4
M easu remen t procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4. 4. 5

Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4. 5
Bit error ratio ( BER ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4. 5. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4. 5. 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4. 5. 3
Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4. 5. 4
M easu remen t procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4. 5. 5
Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4. 6
BER versu s S/ N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4. 6. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4. 6. 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4. 6. 3
Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4. 6. 4
M easu remen t procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4. 6. 5
Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4. 7
System operatin g l evels and marg ins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4. 7. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4. 7. 2

Wh i te noise sig n al margin ( SMWN ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4. 7. 3

I n term odu lation noise sig nal margi n ( SMI N ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

4. 8
M odu l ation error ratio ( MER ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4. 8. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4. 8. 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4. 8. 3
Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4. 8. 4
M easu remen t procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4. 8. 5
Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4. 9
Phase ji tter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52


I EC 60728-1 01 :201 6 © I EC 201 6

–3–

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4. 9. 1
4. 9. 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4. 9. 3

Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4. 9. 4
M easu remen t procedu res . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4. 9. 5
Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4. 1 0 Phase n oise of an RF carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4. 1 0. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4. 1 0. 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4. 1 0. 3
Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4. 1 0. 4
M easu remen t procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4. 1 0. 5
Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4. 1 1 M u tu al isolati on between system ou tlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4. 1 1 . 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4. 1 1 . 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4. 1 1 . 3
Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4. 1 1 . 4
M easu remen t procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4. 1 1 . 5
Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4. 1 2 Ampl itu de response wi th in a channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4. 1 2. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

4. 1 2. 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4. 1 2. 3
Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4. 1 2. 4
M easu remen t procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4. 1 2. 5
Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4. 1 3 N on-linear di stortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4. 1 3. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4. 1 3. 2
I n term odu lation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4. 1 3. 3
Composite crossmodu lati on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5
Perform ance requirem en ts at system ou tlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5. 1
General requ iremen ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5. 2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5. 3
I mpedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5. 4
Requ irements at the term i nal inpu t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5. 4. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5. 4. 2
Si gn al level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5. 4. 3

Other parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5. 5
RF sig nal levels at system ou tlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5. 5. 1
M inimu m and maxim um RF sig nal levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5. 5. 2
RF sig nal level differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5. 6
M u tu al isolati on between system ou tlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5. 6. 1
I solation between two su bscri bers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5. 6. 2
I solation between indi vidu al ou tlets in one househ ol d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5. 6. 3
I solation between forward and return paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5. 7
Frequ ency response wi th in a television channel at an y system ou tlet . . . . . . . . . . . . . . . . . . . 67
5. 7. 1
Am pli tu de response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5. 7. 2
Grou p delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5. 8
Long -term frequ ency stabi li ty of distri bu ted sign als at any system outlet . . . . . . . . . . . . . . . 68
5. 9
Random n oise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
5. 1 0 I nterference to television ch ann els . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5. 1 0. 1
Si ng le-frequency in terference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

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I EC 60728-1 01 :201 6 © I EC 201 6

I n term odu lation noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5. 1 0. 2
5. 1 1 DVB (PSK, QAM , OFDM) addition al performance requ iremen ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5. 1 1 . 1
BER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5. 1 1 . 2
PER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5. 1 1 . 3
Wh i te noise sig n al margin ( SMWN ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5. 1 1 . 4

I n term odu lation noise sig n al marg in ( SMI N ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

5. 1 1 . 5
MER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
5. 1 1 . 6
Ph ase n oise of a DVB sig nal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
5. 1 2 DAB perform ance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
6
Perform ance requirem en ts at recei ving antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6. 2
M eth od of measu remen t of field streng th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6. 2. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

6. 2. 2
Equ ipmen t requ ired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6. 2. 3
Connection of the equ ipm en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6. 2. 4
M easu remen t procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6. 2. 5
Presen tation of the resul ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6. 3
Requ irements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6. 3. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6. 3. 2
Fi eld stren g th requ irem en ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6. 3. 3
Quality of received sig nal s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6. 3. 4
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6. 3. 5
El ectromag netic compatibi li ty (EMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6. 4
I nterference reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6. 4. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6. 4. 2
Acti ve antenn as . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
7
Perform ance requirem en ts at home n etwork in terfaces of cable networks . . . . . . . . . . . . . . . . . . . . . 80
7. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

7. 2
Requ irements at H N I 1 for passi ve coaxial h om e networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
7. 2. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
7. 2. 2
Si gn al levels at the H N I 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
7. 2. 3
M u tu al isolation between two H N I 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
7. 2. 4
Frequ ency response within any televi sion ch ann el at th e H N I 1 . . . . . . . . . . . . . . . . . . . . . . 84
7. 2. 5
Long -term frequ ency stabi li ty of distri bu ted RF sig nals at H N I 1 . . . . . . . . . . . . . . . . . . . . . 85
7. 2. 6
Random n oise at the H N I 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7. 2. 7
I n terference to tel evision ch ann els at th e H N I 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7. 2. 8
Retu rn path requ iremen ts at the H N I 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7. 3
Requ irements at H N I 2 for acti ve coaxi al home networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7. 3. 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7. 3. 2
RF sig nal levels at the H N I 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7. 3. 3
M u tu al isolation between two H N I 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
7. 3. 4
Frequ ency response within any televi sion ch ann el at th e H N I 2 . . . . . . . . . . . . . . . . . . . . . . 89
7. 3. 5
Long -term frequ ency stabi li ty of distri bu ted RF sig nals at H N I 2 . . . . . . . . . . . . . . . . . . . . . 90

7. 3. 6
Random n oise at H N I 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
7. 3. 7
I n terference to tel evision ch ann els at th e H N I 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
7. 3. 8
Retu rn path requ iremen ts at the H N I 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7. 4
Requ irements at H N I 3 an d at system ou tlet or term inal input wh en th e home
n etwork is main ly of balanced type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93


I EC 60728-1 01 :201 6 © I EC 201 6

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General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7. 4. 1
7. 4. 2
Requ irements at H N I 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7. 4. 3
Requ irements at system ou tpu t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7. 4. 4
Additional requi rem en ts at H N I 3 for u pstream transm ission . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
7. 5
Requ irements at H N I 3 (case C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
7. 6
Requ irements at H N I 3 (case D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
An nex A (n ormati ve) Correction factors for n oise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
A. 1
Sig n al level m easurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

A. 2
N oise level m easu remen t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
An nex B (n ormati ve) N ul l packet and PRBS defini ti ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
B. 1
N u l l packet defini tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
B. 2
PRBS defin ition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
An nex C (n ormative) Dig ital sign al level and ban dwi dth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 00
C. 1
RF/I F power ("carri er") . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 00
C. 2
Bandwidth of a dig i tal sig nal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 00
C. 2. 1
Occu pied ban dwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 00
C. 2. 2
N oise ban dwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 01
C. 2. 3
Equ ivalen t si gn al ban dwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 01
C. 3
Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 02
An nex D (n ormative) Correcti on factor for a spectru m anal yser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 03
An nex E (i n formative) Differences in some cou n tries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 04
E. 1
Su bclau se 3. 1 . 48, N orway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 04
E. 2
Su bclau se 5. 5. 1 , J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 04
E. 3
Su bclau se 5. 5. 2, J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 04
E. 4
Su bclau se 5. 6. 1 , J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 05

E. 5
Su bclau se 5. 7. 1 , J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 05
E. 6
Su bclau se 5. 7. 2 J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 05
E. 7
Su bclau se 5. 8, J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 05
E. 8
Su bclau se 5. 9, J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 05
E. 9
Su bclau se 5. 1 0. 1 , J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 05
E. 1 0 Su bclau se 5. 1 1 . 6, J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 06
E. 1 1 Su bclau se 6. 3. 3, J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 07
E. 1 2 Clau se 7, J apan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 07
Bi bli ograph y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 08
Fi g ure 1 – Example of a m aster anten na television system (MATV) for terrestrial
reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1
Fi g ure 2 – Example of the headen d of a master an tenn a televi si on system for satel l ite
(SM ATV) recepti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2
Fi g ure 3 – Example of a m aster anten na television system for terrestrial and satell i te
(SM ATV) recepti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2
Fi g ure 4 – Example of a cabl ed distribu ti on system for televisi on and soun d sig nals . . . . . . . . . . . . . 1 3
Fi g ure 5 – System m odel for downstream directi on of a cable n etwork for television
and sound sig n als (CATV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4
Fi g ure 6 – PSK modu lation (QPSK, BPSK or TC8PSK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Fi g ure 7 – DVB-S2 m odu lation (QPSK, 8PSK, 1 6APSK, 32APSK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Fi g ure 8 – DVB-C QAM m odu l ation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Fi g ure 9 – DVB-C2 QAM m odu l ation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35


–6–

I EC 60728-1 01 :201 6 © I EC 201 6

Fi g ure 1 0 – DVB-T OFDM modu lation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Fi g ure 1 1 – DVB-T2 OFDM modu lation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Fi g ure 1 2 – Reference recei ver for PSK demodu lation (QPSK, BPSK or TC8PSK) . . . . . . . . . . . . . . . 36
Fi g ure 1 3 – Reference recei ver for DVB-S2 dem odu l ation (QPSK, 8PSK, 1 6APSK,
32APSK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Fi g ure 1 4 – Reference recei ver for DVB-C QAM demodu lation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Fi g ure 1 5 – Reference recei ver for DVB-C2 dem odu lati on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Fi g ure 1 6 – Reference recei ver for DVB-T OFDM demodu l ation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Fi g ure 1 7 – Reference recei ver (bu ffer model) for DVB-T2 OFDM dem odu lation . . . . . . . . . . . . . . . . . . . 37
Fi g ure 1 8 – Test set-u p for BER m easu rem en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Fi g ure 1 9 – Test set-u p for BER measu rem en t versu s S/ N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Fi g ure 20 – Example of BER measu remen t versu s S/N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Fi g ure 21 – Example of S/IN and BER versus sign al level S for a cable network wi thou t
optical link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Fi g ure 22 – Optical and coaxial subsystems of an H FC n etwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Fi g ure 23 – Test set-u p for SMWN and SMI N m easu rem en t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Fi g ure 24 – Test set-u p for modu lation error ratio ( MER ) m easu rem en t and phase jitter
m easu remen t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Fi g ure 25 – Example of constell ation diag ram for a 64 QAM modu lation form at . . . . . . . . . . . . . . . . . . . . 52
Fi g ure 26 – Example of constell ation diag ram for a 64 QAM m odu lati on format wi th
arcs du e to phase ji tter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Fi g ure 27 – Test set-u p for ph ase noise measu remen t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Fi g ure 28 – Example of mask for phase noise measu remen ts: PSK, APSK an d QAM
formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Fi g ure 29 – Example of mask for phase noise measu remen ts: OFDM format . . . . . . . . . . . . . . . . . . . . . . . . 57
Fi g ure 30 – Arrang ement of test equ ipment for measu remen t of mu tu al isolation
between system ou tlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Fi g ure 31 – Arrang ement of test equ ipment for measu remen t of frequ ency response
wi th in a chan nel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Fi g ure 32 – I nterpretation of displ ays for measu remen t of frequ ency response withi n a
chann el . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Fi g ure 33 – H ome network types u sed to defin e th e requ iremen ts at several H N I types
(coaxial) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Fi g ure A. 1 – N oise correction factor CF versu s measu red level di fference D . . . . . . . . . . . . . . . . . . . . . . . . 97
Fi g ure E. 1 – Si ng le-frequ ency interference (64 QAM dig i tal) (J apan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 06
Fi g ure E. 2 – Si ng le-frequ ency interference (256 QAM dig i tal) (J apan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 06
Table 1 – Appl ication of th e methods of measu remen t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 2 – Frequency distance fm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 3 – Dig i tal sign al levels at an y system ou tlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Table 4 – Maximu m level di fferences at an y system ou tlet between distribu ted
television channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Table 5 – Residu al carrier l evel at tel evision or FM radi o ou tpu t wi thi n the sam e ou tlet
or between two different ou tlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Table 6 – Am pli tu de response variati on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Table 7 – Grou p del ay variati on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68


I EC 60728-1 01 :201 6 © I EC 201 6

–7–

Table 8 – Maximu m deviation of conversi on frequ ency for dig i tall y m odu lated DVB
sig n als . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Table 9 – RF sig nal-to noise ratio at system ou tlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Table 1 0 – M odu l ation error ratio MER of DVB si gn als . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Table 1 1 – Phase n oise of a DVB sig nal (PSK, APSK and QAM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Table 1 2 – Phase n oise of a DVB-T or DVB-C2 si gn al (COFDM ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Table 1 3 – M i ni mu m field stren g th l evels recom mended by CEPT [3] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Table 1 4 – M i ni mu m si gn al level at th e headend i npu t for the reception of DAB si g nals . . . . . . . 77
Table 1 5 – M i ni mu m si gn al level and RF sig nal-to-noise ratio at the h eadend inpu t for
stationary reception of DVB-T sig nals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Table 1 6 – M i ni mu m si gn al-to-n oise rati o S/N at th e headend i npu t for DVB-T2 sig n als . . . . . . . . 78
Table 1 7 – M i ni mu m RF sig n al -to-n oi se rati o at the headend inpu t for th e reception of
DVB-S or DVB-S2 satel li te sig n als . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Table 1 8 – Sig n al level at H N I 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Table 1 9 – M aximu m level differences at H N I 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Table 20 – Ampl itu de response variation at H N I 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Table 21 – Grou p delay vari ation at H N I 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Table 22 – Sig n al level at H N I 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Table 23 – M aximu m level differences at H N I 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Table 24 – Ampl itu de response variation at H N I 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Table 25 – Grou p delay vari ation at H N I 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Table 26 – M i ni mu m RF sig n al -to-n oi se rati os at H N I 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Table 27 – M i ni mu m si gn al level at coaxial term in al in pu t (case A) or at coaxial
system ou tlet (case B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Table A. 1 – N oise correcti on factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Table B. 1 – N u l l transport stream packet defin i tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Table C. 1 – Examples of bandwidths for dig i tal modu lation tech ni ques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 02


–8–

I EC 60728-1 01 :201 6 © I EC 201 6

I NTERNATI ONAL ELECTROTECHN I CAL COMMI SSI ON
____________

CABLE NETWORKS FOR TELEVISION SIGNALS,
SOUND SIGNALS AND INTERACTIVE SERVICES –
Part 1 01 : System performance of forward paths
loaded with digital channels only
FOREWORD
1 ) Th e I n tern ati on al El ectrotech n i cal Com m i ssi on (I EC) i s a worl d wi d e org an i zati on for stan dard i zati on com pri si n g
al l n ati on al el ectrotech n i cal com m i ttees (I EC N ati on al Com m i ttees) . Th e obj ect of I EC i s to prom ote
i n tern ati on al co-operati on on al l q u esti on s con cern i n g stan dard i zati on i n th e el ectri cal an d el ectron i c fi el ds. To
th i s en d an d i n ad di ti on to oth er acti vi ti es, I EC pu bl i sh es I n tern ati on al Stan d ards, Tech n i cal Speci fi cati on s,
Tech n i cal Reports, Pu bl i cl y Avai l abl e Speci fi cati on s (PAS) an d G u i d es (h ereafter referred to as “I EC
Pu bl i cati on (s) ”) . Th ei r preparati on i s en tru sted to tech n i cal com m i ttees; an y I EC N ati on al Com m i ttee i n terested
i n th e su bj ect d eal t wi th m ay parti ci pate i n th i s preparatory work. I n tern ati on al , g overn m en tal an d n on g overn m en tal org an i zati on s l i ai si n g wi th th e I EC al so parti ci pate i n th i s preparati on . I EC col l aborates cl osel y
wi th th e I n tern ati on al Org an i zati on for Stan d ard i zati on (I SO) i n accordan ce wi th con d i ti on s d eterm i n ed by
ag reem en t between th e two org an i zati on s.
2) Th e form al d eci si on s or ag reem en ts of I EC on tech n i cal m atters express, as n earl y as possi bl e, an i n tern ati on al
con sen su s of opi n i on on th e rel evan t su bj ects si n ce each tech n i cal com m i ttee h as represen tati on from al l
i n terested I EC N ati on al Com m i ttees.
3) I EC Pu bl i cati on s h ave th e form of recom m en d ati on s for i n tern ati on al u se an d are accepted by I EC N ati on al
Com m i ttees i n th at sen se. Wh i l e al l reason abl e efforts are m ad e to en su re th at th e tech n i cal con ten t of I EC
Pu bl i cati on s i s accu rate, I EC can n ot be h el d respon si bl e for th e way i n wh i ch th ey are u sed or for an y
m i si n terpretati on by an y en d u ser.
4) I n ord er to prom ote i n tern ati on al u n i form i ty, I EC N ati on al Com m i ttees u n d ertake to appl y I EC Pu bl i cati on s
tran sparen tl y to th e m axi m u m exten t possi bl e i n th ei r n ati on al an d reg i on al pu bl i cati on s. An y d i verg en ce
between an y I EC Pu bl i cati on an d th e correspon d i n g n ati on al or reg i on al pu bl i cati on sh al l be cl earl y i n d i cated i n
th e l atter.
5) I EC i tsel f d oes n ot provi de an y attestati on of con form i ty. I n d epen d en t certi fi cati on bodi es provi d e con form i ty
assessm en t servi ces an d , i n som e areas, access to I EC m arks of con form i ty. I EC i s n ot respon si bl e for an y
servi ces carri ed ou t by i n d epen d en t certi fi cati on bodi es.
6) Al l u sers sh ou l d en su re th at th ey h ave th e l atest edi ti on of th i s pu bl i cati on .
7) N o l i abi l i ty sh al l attach to I EC or i ts d i rectors, em pl oyees, servan ts or ag en ts i n cl u di n g i n d i vi du al experts an d

m em bers of i ts tech n i cal com m i ttees an d I EC N ati on al Com m i ttees for an y person al i n j u ry, property d am ag e or
oth er d am ag e of an y n atu re wh atsoever, wh eth er di rect or i n d i rect, or for costs (i n cl u d i n g l eg al fees) an d
expen ses ari si n g ou t of th e pu bl i cati on , u se of, or rel i an ce u pon , th i s I EC Pu bl i cati on or an y oth er I EC
Pu bl i cati on s.
8) Atten ti on i s d rawn to th e N orm ati ve referen ces ci ted i n th i s pu bl i cati on . U se of th e referen ced pu bl i cati on s i s
i n di spen sabl e for th e correct appl i cati on of th i s pu bl i cati on .
9) Atten ti on i s d rawn to th e possi bi l i ty th at som e of th e el em en ts of th i s I EC Pu bl i cati on m ay be th e su bj ect of
paten t ri g h ts. I EC sh al l n ot be h el d respon si bl e for i d en ti fyi n g an y or al l su ch paten t ri g h ts.

I n tern ati onal Stan dard I EC 60728-1 01 has been prepared by techn ical area 5: Cable n etworks
for television sig n als, sou nd sig n als an d in teracti ve services, of I EC techn ical comm i ttee 1 00:
Au dio, vi deo and mu l ti media systems and equ ipm ent.
The text of this standard i s based on th e foll owing docu men ts:
FDI S

Report on voti n g

1 00/2641 /FDI S

1 00/2668/RVD

Fu ll in form ation on the votin g for the approval of th is standard can be fou nd in the report on
votin g i ndicated i n the above table.
Th is pu bl ication has been drafted in accordance with th e I SO/I EC Directives, Part 2.


I EC 60728-1 01 :201 6 © I EC 201 6

–9–

The list of al l th e parts of th e I EC 60728 seri es, u nder th e g eneral title Cable networks for
television signals, sound signals and interactive services, can be fou nd on the I EC websi te.
For th e di fferences in som e coun tries, see Annex E.
The com mi ttee has decided th at th e con tents of th is publ icati on wi ll remain u nchang ed u ntil
th e stabili ty date in dicated on th e I EC website u nder "http://webstore. iec. ch" in the data
rel ated to the speci fic publ ication . At th is date, the pu blication wil l be
•

reconfirmed,

•

wi thdrawn ,

•

replaced by a revised edi ti on , or

•

amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.


– 10 –

I EC 60728-1 01 :201 6 © I EC 201 6

I NTRODUCTI ON
Standards and deli verabl es of the I EC 60728 series deal wi th cable networks i nclu ding
equ ipment an d associated m ethods of measurem ent for headen d recepti on, processing and
distribu ti on of television an d sound sig n als and for processing , in terfacin g and transm itting al l
kinds of data sig nals for i n teractive services usi ng all applicabl e transmission media. These
sig n als are typical ly transm itted in networks by frequ ency-mu ltiplexing tech ni ques.
Th is inclu des for instance
•

reg ional and l ocal broadband cable networks,

•

extended satel li te and terrestri al televi sion distribu tion systems,

indi vidu al satel li te an d terrestri al televi si on receivi ng systems,
and all kinds of equ ipmen t, systems and install ations u sed i n such cable networks, distribu ti on
and recei vi ng systems.

•

The extent of this standardization work is from the an tenn as and/or special si g nal sou rce
inpu ts to the headend or oth er in terface points to th e network u p to the term inal inpu t of th e
custom er prem ises equ ipment.
The stan dardization work will consider coexistence wi th u sers of the RF spectru m i n wired
and wireless transm ission systems.
The standardizati on of any u ser term inals (i. e. tu n ers, recei vers, decoders, mu l tim edia
term inals, etc. ) as well as of an y coaxi al, balanced and optical cables and accessories thereof

is exclu ded.
The reception of television sig nals i nside a bu i lding requ i res an ou tdoor an tenna and a
distribu ti on n etwork to con vey the sig nal to th e TV receivers.
The instal lati on of an outdoor an tenn a for each TV receiver sh ou ld be avoided for techn ical,
economical and practical reasons.
I n a bu il di ng divided i nto apartment blocks, the instal lation of a master an tenna television
system for terrestrial (M ATV) and/or satell i te (SM ATV) reception , as shown in Fig ure 1 ,
Fi g ure 2, Fig u re 3, Figu re 4 an d Fig u re 5, describing as an exampl e the variou s parts of the
system is usu al. Most of the terms used in the I EC 60728 series can be referred to th ese
fi g u res.
Wh en si g nals to be conveyed to the TV recei vers are picked up far away, for g eograph ical
reasons, and th e nu mber of u sers (su bscri bers) is very h ig h , the installation of a cable
n etwork u sin g coaxial cabl es and/or fibre optic cables is used, as in dicated in Fig ure 4,
describing as an example the various parts of the system .
A system model of a cable network i s shown in Fi g ure 5, where the m ain parts of the systems
are indicated, as defined in Clau se 3.
Th is standard deals wi th dig ital sign als only.
For forward path analogu e si gnals refer to I EC 60728-1 . For return paths sig nals (analog u e
and dig i tal) refer to I EC 60728-1 0.
Clause 4 defines the meth ods of measuremen t of the system perform ance parameters at the
system ou tlet.
Clause 5 defin es the system performance limi ts wh ich will , with an u n im paired i npu t,
(headen d inpu t sig nal) , produ ce pictu re and sou nd sign als (at system ou tlets) wh ere th e
qu ali ty requ irement is a quasi-error-free (QEF) reception .
Appropri ate performance requ iremen ts for the sig n als at the recei vin g an tennas site are g iven
in Clau se 6 i n order to provide, at th e inpu t of th e headend of the cable network, for dig i tal
television sig nals with su i tabl e qu al ity.


I EC 60728-1 01 :201 6 © I EC 201 6

– 11 –

Clau se 7 is appl icable to hom e networks (inclu din g those of indi vidu al receivin g systems)
usin g coaxial cables, balanced cabl es or optical cabl es and is primaril y in tended for television
sig n als, sou nd si g nals and in teracti ve services, operating between abou t 30 MH z and
3 000 MH z. Clause 7 also considers basic operati onal ch aracteristics of a home network,
specifies the requ iremen ts with respect to the h ome network in terface (H N I ) taking in to
accoun t the performance requ iremen ts g i ven at the system ou tl et or at the term inal inpu t.
Receiving antenna system
terrestrial
Antenna amplifier
f1

Frequency converter

f1

Amplifier
f2

f2

Combiner
Network interface

Headend
Amplifier

Splitter (3 outputs)

Distribution
amplifier

Distribution
amplifier
Splitter
(2 outputs)

Branch feeders

System outlets

HNI

Subscriber's taps

Subscriber's feeders

Spur feeders

HNI

HNI

HNI
Matching load

IEC

Som e apartm en ts (d wel l i n g u n i ts) are served wi th a h om e n etwork (H N ) , i n terfaced to th e M ATV system by th e

h om e n etwork i n terface (H N I ) .

Figure 1 – Example of a master antenna television system
(MATV) for terrestrial reception


– 12 –

I EC 60728-1 01 :201 6 © I EC 201 6

Satellite reception
1 1 GHz – 1 2 GHz bands
LNB

1 st IF
VHF/UHF

1

st

Headend for
terrestrial reception

IF (950 MHz – 2 1 50 MHz)
To the distribution network
(VHF/UHF and 1 st IF)

IEC

N OTE Di stri bu ti on at th e 1 st I F on th e sam e cabl e as terrestri al VH F/U H F ch an n el s.

Figure 2 – Example of the headend of a master antenna
television system for satellite (SMATV) reception
Satellite reception
1 1 GHz – 1 2 GHz bands
LNB

1 st IF

VHF/UHF

Headend for
terrestrial reception

To the distribution network
(VHF/UHF and 1 st IF)

IEC

Figure 3a – Headend for terrestrial and satellite
reception using multicable distribution
Inputs
M

M

2 …

M

N1
M

Switching matrix
M×N
inputs × outputs

N2

Outputs

M

1

NN

N

1

2

3 4 …

N

1

N

2

…

3

4

IEC

IEC

Figure 3b – Distribution with
switching matrix at each flat

Figure3c – Distribution with
switching matrix: star configuration

N OTE Di stri bu ti on at th e 1 st I F u si n g m u l ti cabl e an d m u l ti -swi tch tech n i q u e.

Figure 3 – Example of a master antenna television
system for terrestrial and satellite (SMATV) reception


Subscriber's feeder

Building network
interface (BNI)

Home network interface (HNI)
Multi-dwelling unit (MDU)
In-house two-way
amplifier
Local terrestrial antenna

In-house repeating amplifier

Remote terrestrial antenna

Network Interface

Home network
interface (HNI)

Building network
interface (BNI)

Splitter

Subscriber's feeder

Building Network (BN) with star topology

I EC 60728-1 01 :201 6 © I EC 201 6

Multi-dwelling unit (MDU)

Super trunk

In-house repeating amplifier

Satellite antenna
Interactive services including
Internet, telephone, etc.
Studio

Network control

Subscriber terminal control

Headend system

Processing unit and combiner

Optical
receiver

Home network
interface (HNI)

Coaxial trunk feeder

Optical trunk feeder

– 13 –

Remote
headend

Building Network (BN) with tree topology

Subscriber
terminal
System outlet
Dwelling unit

Optical
Fwd. Tx / Rev. Rx

Optical
node

TA: trunk amplifier
TDA: trunk-distribution amplifier
TBA: trunk-bridger amplifier
BA: bridger amplifier
EA: spur amplifier (line extender/amplifier)
TF: trunk feeder
BF: branch feeder
SF: spur feeder
TAP: subscriber tap
NTU: network termination unit
Transmission – Two-way network

Single dwelling unit
(SDU)

Subscriber's feeder

Subscriber
terminal
Home network
interface (HNI)

System outlet
Home network (HN)

IEC

Figure 4 – Example of a cabled distribution system for television and sound signals


Remote terrestrial antenna

Remote
headend

Supertrunk feeder

Local
headend

Supertrunk feeder

Trunk feeder

Hub
headend

Branch feeder
Distribution
point

Spur feeder
Subscriber tap
Subscriber feeder
(Drop feeder)

Figure 5 – System model for downstream direction of a cable network for television and sound signals (CATV)

– 14 –

System outlet
IEC

I EC 60728-1 01 :201 6 © I EC 201 6


I EC 60728-1 01 :201 6 © I EC 201 6

– 15 –

CABLE NETWORKS FOR TELEVISION SIGNALS,
SOUND SIGNALS AND INTERACTIVE SERVICES –
Part 1 01 : System performance of forward paths
loaded with digital channels only

1

Scope

Th is part of I EC 60728 i s appl icabl e to an y cabl e network (i ncl uding i ndi vi dual recei vin g
systems) distribu ti ng only dig i tal channels havin g in the forward path a coaxial cable ou tput
and pri marily in tended for televisi on and soun d sig n als operatin g between abou t 30 MH z and
3 000 MH z.
Th is standard specifi es th e basic m eth ods of measu remen t of th e operational characteristics
of a cable network h avin g coaxi al cabl e ou tpu ts in order to assess th e performance of these
systems an d th eir perform ance l im i ts.

2 Normative references
The following docu men ts, in wh ole or in part, are n ormati vel y referenced in this docu m en t and
are indispensable for i ts application . For dated references, onl y the edi tion ci ted appl ies. For
u ndated references, th e latest edi tion of the referenced docu men t (inclu ding any
amendm en ts) appl ies.
I EC 60050-705,

propagation

International Electrotechnical Vocabulary – Chapter 705: Radio wave

International Electrotechnical Vocabulary – Chapter 712: Antennas
I EC 60050-725, International Electrotechnical Vocabulary – Chapter 725: Space
radiocommunications
I EC 60728-1 , Cable networks for television signals, sound signals and interactive services –
Part 1: System performance of forward paths
I EC 60728-1 -1 , Cable networks for television signals, sound signals and interactive services
– Part 1-1: RF cabling for two way home networks
I EC 60728-1 -2, Cable networks for television signals sound signals and interactive services
– Part 1-2: Performance requirements for signals delivered at the system outlet in operation

I EC 60728-2, Cable networks for television signals, sound signals and interactive services –
Part 2: Electromagnetic compatibility for equipment
I EC 60728-3, Cable networks for television signals, sound signals and interactive services –
Part 3: Active wideband equipment for cable networks
I EC 60728-3-1 , Cable networks for television signals, sound signals and interactive services
– Part 3-1: Active wideband equipment for cable networks – Methods of measurement of nonlinearity for full digital channel load with DVB-C signals
I EC 60728-5, Cable networks for television signals, sound signals and interactive services –
Part 5: Headend equipment
I EC 60728-1 0, Cable networks for television signals, sound signals and interactive services
– Part 10: System performance of return paths
I EC 60728-1 1 , Cable networks for television signals, sound signals and interactive services
– Part 11: Safety
I EC 60050-71 2,


– 16 –

I EC 60728-1 01 :201 6 © I EC 201 6

Cabled distribution systems for television and sound signals – Part 12:
Electromagnetic compatibility of systems
I EC 60966-2-4, Radio frequency and coaxial cable assemblies – Part 2-4: Detail
specification for cable assemblies for radio and TV receivers – Frequency range 0 MHz to
3 000 MHz, IEC 61169-2 connectors
I EC 60966-2-5, Radio frequency and coaxial cable assemblies – Part 2-5: Detail
specification for cable assemblies for radio and TV receivers – Frequency range 0 MH z to
1 000 MHz, IEC 61169-2 connectors
I EC 60966-2-6, Radio frequency and coaxial cable assemblies – Part 2-6: Detail
specification for cable assemblies for radio and TV receivers – Frequency range 0 MH z to
3 000 MHz, IEC 61169-24 connectors

I SO/I EC 1 381 8-1 , Information technology – Generic coding of moving pictures and
associated audio information – Part 1: Systems
I SO/I EC 1 381 8-2, Information technology – Generic coding of moving pictures and
associated audio information – Part 2: Video
I SO/I EC 1 381 8-3, Information technology – Generic coding of moving pictures and
associated audio information – Part 3: Audio
I SO/I EC 1 381 8-4, Information technology – Generic coding of moving pictures and
associated audio information – Part 4: Conformance testing
I SO/I EC 1 4496-1 , Information technology – Coding of audio-visual objects – Part 1: Systems
I SO/I EC 1 4496-2, Information technology – Coding of audio-visual objects – Part 2: Visual
I SO/I EC 1 4496-3, Information technology – Coding of audio-visual objects – Part 3: Audio
EN 50248, Characteristics of DAB receivers
ETSI EN 300 421 , Digital Video Broadcasting (DVB) – Framing structure, channel coding and
modulation for 11/12 GHz satellite services
ETSI EN 300 429, Digital Video Broadcasting (DVB) – Framing structure, channel coding and
modulation for cable systems
ETSI EN 300 468, Digital Video Broadcasting (DVB) – Specification for Service Information
(SI) in DVB systems
ETSI EN 300 473, Digital Video Broadcasting (DVB) – Satellite Master Antenna Television
(SMATV) distribution systems
ETSI EN 300 744, Digital Video Broadcasting (DVB) – Framing structure, channel coding and
modulation for digital terrestrial television
ETSI EN 300 748, Digital Video Broadcasting (DVB) – Multipoint Video Distribution Systems
(MVDS) at 10 GHz and above
ETSI EN 300 749, Digital Video Broadcasting (DVB) – Microwave Multipoint Distribution
Systems (MMDS) below 10 GHz
ETSI EN 302 307, Digital Video Broadcasting (DVB) – Second generation framing structure,
channel coding and modulation systems for Broadcasting, Interactive Services, News
Gathering and other broadband satellite applications
ETSI EN 302 755, Digital Video Broadcasting (DVB) – Frame structure, channel coding and

modulation for a second generation digital terrestrial television broadcasting system (DVB-T2)
I EC 60728-1 2,


I EC 60728-1 01 :201 6 © I EC 201 6

– 17 –

Digital Video Broadcasting (DVB) – Frame structure channel coding and
modulation for a second generation digital transmission system for cable systems (DVB-C2)
ETSI ETS 300 784, Satellite Earth Stations and Systems (SES) – TeleVision Receive-Only
(TVRO) satellite earth stations operating in the 11/12 GHz frequency bands
ETSI TR 1 01 21 1 , Digital Video Broadcasting (DVB) – Guidelines on implementation and
usage of Service Information (SI)
ETSI TR 1 01 290, Digital Video Broadcasting (DVB) – Measurement guidelines for DVB
systems
ETSI TS 1 02 831 , V1.1.1 (2010-10), Digital Video Broadcasting (DVB) – Implementation
guidelines for a second generation digital terrestrial television broadcasting system (DVB-T2)
ETSI TS 1 02 991 , V1.2.1 (2011-06), Digital Video Broadcasting (DVB) – Implementation
guidelines for a second generation digital cable transmission system (DVB-C2)
ETSI EN 302 769,

3
3.1

Terms, definitions, symbols and abbreviations
Terms and definitions

For the pu rposes of thi s docu ment, the terms an d definitions g iven in I EC 60050-705,
I EC 60050-71 2 an d I EC 60050-725, as wel l as the fol lowin g appl y.

N OTE Th e m ost i m portan t d efi n i ti on s are repeated bel ow.

3.1 .1
active antenna

an ten na incorporati ng acti ve devices
[SOU RCE: I EC 60050-71 2:1 992, 71 2-03-29]

3.1 .2
active home network

hom e n etwork that uses acti ve equ ipmen t (for exam pl e, amplifiers) in addi tion to passi ve
equ ipment l ike spl itters, taps, system ou tl ets, cables and connectors u p to the coaxial RF
in terface (inpu t an d/or ou tpu t) of the termi nal equ ipmen t for distribu ting an d combinin g RF
sig n als
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 2]

3.1 .3
antenna

part of a radio transm i tti ng or receivi ng system wh ich is desig ned to provide the requ ired
cou pli ng between a transm i tter or a recei ver and th e m ediu m in wh ich the radio wave
propagates
N ote 1 to en try: I n practi ce, th e term i n al s of th e an ten n a or th e poi n ts to be con si d ered as th e i n terface between
th e an ten n a an d th e tran sm i tter or recei ver are speci fi ed.
N ote 2 to en try: I f th e tran sm i tter or recei ver i s con n ected to i ts an ten n a by a feed er l i n e, th e an ten n a i s
con si d ered to be a tran sd u cer between th e g u i d ed rad i o waves of th e feed er l i n e an d th e rad i ated waves i n space.
N ote 3 to en try:

See al so I EC 60728-1 : 201 4, 3. 1 . 3, I E C 60728-1 -1 : 201 4, 3. 1 . 2 an d I EC 60728-1 -2: 201 4, 3. 1 . 2.

[SOU RCE: I EC 60050-71 2:1 992, 71 2-01 -01 , m odified – The deprecated term "aeri al" has
been deleted, in N ote 1 "shou ld be speci fied" has been repl aced by "are speci fied", N ote 2
has been clarified and a N ote 3 g i ving addi tion al references has been added. ]

3.1 .4
antenna amplifier

ampli fi er (often a low-noise type) associated with an an tenn a
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 4]


– 18 –

I EC 60728-1 01 :201 6 © I EC 201 6

3.1 .5
attenuation

rati o of the in pu t power to the ou tpu t power of an equ ipmen t or system
N ote 1 to en try:

Th e rati o i s expressed i n d eci bel s.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 5]

3.1 .6
automatic gain control
AGC

au tomatic con trol of a device to main tai n constan t the level of the sig n al at i ts ou tput, using
th at si gnal as the con trol stimu lu s
N ote 1 to en try:

Th i s n ote appl i es to th e Fren ch l an g u ag e on l y.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 6]

3.1 .7
bit error ratio
BER

rati o between erroneous bi ts and th e total nu mber of transmitted bits
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 9]

3.1 .8
branch amplifier

ampl ifier to compensate for the attenu ation in a branch feeder
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 1 0]

3.1 .9
branch feeder

feeder u sed for connectin g a distribu ti on poin t to spur feeders
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 1 1 ]

3.1 .1 0
bridger amplifier

ampl ifi er for con nection i n a trunk or branch feeder to energi ze a distribu tion poin t or on e or
more branch or spur feeders
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 1 2]

3.1 .1 1
broadcast and communication technologies
BCT

grou p of applications inclu ding RF distribution of sou nd sig nals and video sig nals
N ote 1 to en try: I n th e l i g h t of th i s stan d ard, th i s i s a g rou p of appl i cati on s u si n g th e H F ban d (3 M H z to 30 M H z) ,
th e VH F ban d (30 M H z to 300 M H z) an d th e U H F ban d (300 M H z to 3000 M H z) for tran sm i ssi on of tel evi si on
si g n al s, sou n d si g n al s an d i n teracti ve servi ces, as wel l as for i n -h om e i n ter-n etworki n g .
N ote 2 to en try:

Th i s n ote appl i es to th e Fren ch l an g u ag e on l y.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 1 3]

3.1 .1 2
building network
BN

network for transmission of television si g nal , sou nd sig nals and in teractive services inside a
bu ildin g (m ul ti -dwel li ng s)
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 1 4]


I EC 60728-1 01 :201 6 © I EC 201 6

– 19 –

3.1 .1 3
building network interface
BNI

in terface to th e n etwork for the transm ission of television si g nal , sou nd si gn als and in teracti ve
services inside a bui lding (mu l ti-dwell in g s)
N ote 1 to en try:

Th i s poi n t i s al so cal l ed “tran sfer poi n t” or “extern al n etwork i n terface”.

N ote 2 to en try:

Th i s n ote appl i es to th e Fren ch l an g u ag e on l y.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 1 5, modified – N ote 1 h as been added (N ote 2 is for
in formation only) . ]

3.1 .1 4
CATV network

reg ion al and l ocal broadband cabl e n etworks desig n ed to provide sou n d and television sig nals
as wel l as sig nals for in teractive servi ces to a reg ional or local area
N ote 1 to en try:

Ori g i n al l y d efi n ed as Com m u n i ty An ten n a Tel evi si on n etwork.

[SOU RCE: I EC 60728-1 -1 :201 4, 3. 1 . 9 and I EC 60728-1 -2:201 4, 3. 1 . 8]

3.1 .1 5

combiner

device i n whi ch sig nals arri ving at two or m ore inpu t ports are fed to a sing le ou tpu t port
N ote 1 to en try:

Som e form s of th i s d evi ce m ay be u sed i n th e reverse di recti on as spl i tters.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 1 9]

3.1 .1 6
common phase error
CPE

error in OFDM systems cau sed by phase noise which affects al l carriers sim u ltaneou sly
N ote 1 to en try:

3.1 .1 7
decibel ratio

Th i s n ote appl i es to th e Fren ch l an g u ag e on l y.

ten times the log arith m to the base 1 0 of the rati o of two qu anti ti es of power P1 an d P2 , i. e.

1 0 lg

P1
P2

in dB

N ote 1 to en try: Th i s rati o m ay al so be expressed i n term s of vol tag es, on th e con di ti on th at both U1 an d U2 i s th e
sam e (e. g . 75 Ω ) .

20 lg

U1

U2

in dB

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 24, m odi fi ed – N ote 1 to entry clari fied. ]

3.1 .1 8
designed receiving antenna

an ten na th at has the g ain , the directi vity and the polarization for recei ving the wanted sig nal
at the headen d site with th e requ ired performance
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 25]

3.1 .1 9
directional coupler

passive sign al spli tting device, with m in i mu m sig nal l oss between the i npu t port an d th e
ou tpu t port (throu g h l oss) , a speci fi ed coupl ing loss between the input port an d the tap port
(tap l oss) , an d very hig h l oss between the ou tpu t port and tap port (isolation)
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 26. ]


– 20 –

I EC 60728-1 01 :201 6 © I EC 201 6

3.1 .20
directivity

attenu ati on between ou tpu t port and i n terface or tap port min us th e atten u ation between in pu t
port and in terface or tap port, of an y equ ipmen t or system
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 27]

3.1 .21
distribution amplifier

ampl i fier desig n ed to feed on e or more branch or spu r feeders
N ote 1 to en try:

Th i s i s a g en eral term em braci n g bran ch am pl i fi er an d spu r am pl i fi er.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 28]

3.1 .22
distribution point

poi nt where sig n als are taken from the trunk feeder to en erg ize branch and/or spu r feeders
N ote 1 to en try:

I n som e cases, a d i stri bu ti on poi n t m ay be d i rectl y con n ected to th e h eaden d .

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 29]

3.1 .23
DOCSIS

standards defin in g in terface speci fications for cabl e modems and cable modem term ination
systems for hig h-speed data comm u nication over RF cable networks
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 30, m odi fi ed – The second preferred term has been
del eted. ]

3.1 .24
dwelling unit
DU

home or office where televisi on an d sou nd sig nals are distribu ted an d wh ere is access to
in teractive services
N ote 1 to en try:

Th i s n ote appl i es to th e Fren ch l an g u ag e on l y.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 31 ]

3.1 .25

Eb /No

rati o between the energ y per bit ( Eb ) and th e noise power densi ty ( N0 )

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 32]

3.1 .26
equaliser

device desi gn ed to com pensate, over a certain frequency rang e, for the am pli tu de/ frequency
distortion or th e ph ase/frequ ency distortion introdu ced by feeders or equ ipment
N ote 1 to en try:

Th i s d evi ce i s for th e com pen sati on of l i n ear d i storti on s on l y.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 34]

3.1 .27
extended satellite television distribution network or system

distribu tion n etwork or system desig ned to provi de sou nd and television sig n als recei ved by
satel li te receiving an tenn a to hou seh ol ds in on e or more bu i ldin g s
N ote 1 to en try: Th i s ki n d of n etwork or system cou l d be even tu al l y com bi n ed wi th terrestri al an ten n as for th e
ad d i ti on al recepti on of TV an d/or radi o si g n al s vi a terrestri al n etworks.
N ote 2 to en try: Th i s ki n d of n etwork or system cou l d al so carry con trol si g n al s for satel l i te swi tch ed system s or
oth er si g n al s for speci al tran sm i ssi on system s (e. g . M oCA or Wi Fi ) i n th e retu rn path di recti on .

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 35]


I EC 60728-1 01 :201 6 © I EC 201 6

– 21 –

3.1 .28
extended terrestrial television distribution network or system

distribu ti on n etwork or system desig ned to provi de sou nd and television si g nals received by

terrestrial recei ving an ten na to hou seholds in one or m ore bu i lding s
N ote 1 to en try: Th i s ki n d of n etwork or system cou l d be even tu al l y com bi n ed wi th a satel l i te an ten n a for th e
ad d i ti on al recepti on of TV an d/or radi o si g n al s vi a satel l i te n etworks.
N ote 2 to en try: Th i s ki n d of n etwork or system cou l d al so carry oth er si g n al s for speci al tran sm i ssi on system s
(e. g . M oCA or Wi Fi ) i n th e retu rn path di recti on .

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 36]

3.1 .29
FECFRAME

frame processed by th e FEC coding su bsystem
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 37]

3.1 .30
feeder

transm ission path form ing part of a cabl e network
N ote 1 to en try:

Su ch a path m ay con si st of a m etal l i c cabl e, opti cal fi bre, waveg u i d e, or an y com bi n ati on of th em .

N ote 2 to en try:

By exten si on , th e term i s al so appl i ed to path s con tai n i n g on e or m ore radi o l i n ks.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 38]

3.1 .31
amplitude response

g ai n or loss between two ports of an equ ipmen t or system plotted ag ainst frequ ency
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 39, modified – The term "frequ ency ampli tu de response"
has been changed to "am pli tu de response". ]

3.1 .32
frequency converter

device for ch ang in g the carri er frequ ency of one or more signals
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 40]

3.1 .33
gain

rati o of the ou tpu t power to the inpu t power of any equ ipmen t or system
N ote 1 to en try:

G ai n i s expressed i n deci bel s.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 42]

3.1 .34
headend

equ ipmen t wh ich is con nected between receivi ng an tenn as or oth er si g nal sou rces and the
remain der of th e cable networks, to process th e sign als to be distribu ted
N ote 1 to en try: Th e h ead en d m ay, for exam pl e, com pri se an ten n a am pl i fi ers, frequ en cy con verters, com bi n ers,
separators an d g en erators.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 43]

3.1 .35
headend for individual reception

headend supplyin g an individu al hou sehold
N ote 1 to en try:

Th i s type of i n stal l ati on m ay i n cl u d e on e or m ore system ou tl ets.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 44]


– 22 –

I EC 60728-1 01 :201 6 © I EC 201 6

3.1 .36
headend input

in terface of th e h eadend wh ere the sig nals recei ved by an tenn as or in di vidu al feeder lines are
appli ed for si g nal processing
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 45]

3.1 .37
home network
HN

RF cable n etwork inside a sing le dwelling (one-family hou se or on e u nit of a m u lti-dwel ling
bu ildin g) in th e SOH O (Sm all Offices H om e Offices) environm en ts or i n the rooms of hotels,
hospi tals

N ote 1 to en try:

th e preferred topol og y of th i s n etwork i s a star.

N ote 2 to en try: Th i s n etwork carri es tel evi si on si g n al s, sou n d si g n al s an d i n teracti ve servi ces u p to th e coaxi al
RF i n terface (i n pu t an d /or ou tpu t) of th e term i n al eq u i pm en t. I t m ay com pri se acti ve equ i pm en t, passi ve eq u i pm en t,
cabl es an d con n ectors.
N ote 3 to en try:

Th i s n ote appl i es to th e Fren ch l an g u ag e on l y.

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 48]

3.1 .38
home network interface
HNI

in terface for access to the network for transm ission of televi sion sig nal, soun d si gn als and
in teracti ve services i nsi de a home (sin g le dwell ing )
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 49]

3.1 .39
intercarrier interference
ICI

interference i n OFDM systems caused by ph ase n oise
N ote 1 to en try:

Th i s n ote appl i es to th e Fren ch l an g u ag e on l y.

3.1 .40
individual satellite television receiving system

system desig ned to provi de sound and television sig nals recei ved from satel li te(s) to an
individu al hou sehold
N ote 1 to en try: Th i s ki n d of system cou l d al so carry con trol si g n al s for satel l i te swi tch ed system s or oth er si g n al s
for speci al tran sm i ssi on system s (e. g . M oCA or Wi Fi ) i n th e retu rn path di recti on .

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 51 ]

3.1 .41
individual terrestrial television receiving system

system desig ned to provi de sou nd and television sig nals recei ved via terrestrial broadcast
networks to an i ndi vidu al h ou sehold
N ote 1 to en try: Th i s ki n d of system cou l d al so carry oth er si g n al s for speci al tran sm i ssi on system s (e. g . M oCA or
Wi Fi ) i n th e retu rn path d i recti on .

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 52]

3.1 .42
intermodulation

process whereby non-l in earity of equi pmen t in a system produ ces ou tpu t sig nals (cal led
in termodu lati on products) at frequ encies which are l inear combinati ons of those of th e in pu t
sig nals
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 53]


I EC 60728-1 01 :201 6 © I EC 201 6

– 23 –

3.1 .43
isolation

attenu ation between two ou tpu t, tap or i nterface ports of an y equ ipmen t or system

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 54]

3.1 .44
level

decibel ratio of any power P1 to th e standard reference power P 0 , i. e.

1 0 lg

P1
P0

in dB

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 55. 1 , modi fied – N otes 1 an d 2 h ave been del eted. ]

3.1 .45
level

deci bel ratio of an y vol tag e U1 to the standard reference voltag e U0 , i. e.

20 lg

U1
U0

in dB

N ote 1 to en try: Th i s m ay be expressed i n d eci bel s (rel ati ve to 1
n o ri sk of am bi g u i ty.

µV

i n 75

Ω)

or m ore si m pl y i n d B( µ V) i f th ere i s

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 55. 2, modified – N ote 1 has been deleted and former
N ote 2 h as become N ote 1 . ]

3.1 .46
local broadband cable network

network desi gn ed to provi de sou nd and television sig nals as well as sig nals for in teractive
services to a local area (e. g . on e town or one vil lage)
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 56]

3.1 .47
local headend

headend whi ch is connected directly to th e system tru nk feeders or to a short-hau l trunk
feeder replacement l ink
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 57]

3.1 .48
looped system outlet

device throu gh wh ich th e spur feeder passes and to wh ich is con nected a recei ver lead,
withou t the use of a subscriber feeder
N ote 1 to en try:

For speci al con d i ti on s I n N orway, see Cl au se E. 1 .

[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 58]

3.1 .49
MATV headend

headend u sed i n blocks of fl ats an d in bu i lt-u p si tes to feed TV channels and FM radio
ch ann els in to the h ouse n etwork or the spu r network
[SOU RCE: I EC 60728-1 :201 4, 3. 1 . 59]

3.1 .50
MATV network

extended terrestrial tel evi sion distribu ti on networks or systems desig ned to provide sou nd an d
television sig nals recei ved by terrestrial receivin g an ten nas to hou seholds i n on e or m ore
bui lding s