Iec 60728 101 2016

Cable network s for television signals,sound signals and interactive services – Part 101: Sy stem performance of forward paths loaded with digital channels only Réseaux de distribution p

Cable network s for television signals,sound signals and interactive services –

Part 101: Sy stem performance of forward paths loaded with digital channels only

Réseaux de distribution par câbles pour signaux de télévision, signaux de

radiodif usion sonore et services intéractifs –

Partie 101: Performances des sy stèmes de voie directe soumis à une charge de

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Cable network s for television signals,sound signals and interactive services –

Part 101: Sy stem performance of forward paths loaded with digital channels only

Réseaux de distribution par câbles pour signaux de télévision, signaux de

radiodif usion sonore et services intéractifs –

Partie 101: Performances des sy stèmes de voie dire te soumis à une charge de

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CONTENTS

FOREWORD 8

INTRODUCTION 10 1 Sco e 15 2 Normative referen es 15 3 Terms, definition , s mb ls an a breviation 17 3.1 Terms an definition 17 3.2 Symb ls 2

3.3 Ab reviation 31

4 Method of me s rement at s stem outlet 3

4.1 General 3

4.2 Basic as umption an me s rement interfaces 3

4.3 Sig al level 3

4.3.1 General 3

4.3.2 Eq ipment req ired 3

4.3.3 Con ection of the eq ipment 3

4.3.4 Me s rement proced re 3

4.3.5 Presentation of the res lts 3

4.4 RF sig al- o-intermod lation an noise ratio S/IN 3

4.4.1 General 3

4.4.2 Eq ipment req ired 3

4.4.3 Con ection of the eq ipment 4

4.4.4 Me s rement proced re 4

4.4.5 Presentation of the res lts 4

4.5 Bit er or ratio (BER) 4

4.5.1 General 4

4.5.2 Eq ipment req ired 41

4.5.3 Con ection of the eq ipment 41

4.5.4 Me s rement proced re 41

4.5.5 Presentation of the res lts 4

4.6 BER vers s S/N 4

4.6.1 General 4

4.6.2 Eq ipment req ired 4

4.6.3 Con ection of the eq ipment 4

4.6.4 Me s rement proced re 4

4.6.5 Presentation of the res lts 4

4.7 Sy tem o eratin levels an margin 4

4.7.1 General 4

4.7.2 White noise sig al margin (SM WN ) 4

4.7.3 Intermod lation noise sig al margin (SM IN ) 4

4.8 Mod lation er or ratio (MER) 5

4.8.1 General 5

4.8.2 Eq ipment req ired 5

4.8.3 Con ection of the eq ipment 5

4.8.4 Me s rement proced re 51

4.8.5 Presentation of the res lts 5

4.9.1 General 5

4.9.2 Eq ipment req ired 5

4.9.3 Con ection of the eq ipment 5

4.9.4 Me s rement proced res 5

4.9.5 Presentation of the res lts 5

4.10 Phase noise of an RF car ier 5

4.10.1 General 5

4.10.2 Eq ipment req ired 5

4.10.3 Con ection of the eq ipment 5

4.10.4 Me s rement proced re 5

4.10.5 Presentation of the res lts 5

4.1 Mutual isolation b twe n s stem outlets 5

4.1 1 General 5

4.1 2 Eq ipment req ired 5

4.1 3 Con ection of the eq ipment 5

4.1 4 Me s rement proced re 5

4.1 5 Presentation of the res lts 5

4.12 Ampl tu e resp n e within a c an el 5

4.12.1 General 5

4.12.2 Eq ipment req ired 5

4.12.3 Con ection of the eq ipment 6

4.12.4 Me s rement proced re 6

4.12.5 Presentation of the res lts 6

4.13 Non-l ne r distortion 6

4.13.1 General 6

4.13.2 Intermod lation 6

4.13.3 Comp site cros mod lation 6

5 Performan e req irements at s stem outlet 6

5.1 General req irements 6

5.2 Overview 6

5.3 Imp dan e 6

5.4 Req irements at the terminal input 6

5.4.1 General 6

5.4.2 Sig al level 6

5.4.3 Other p rameters 6

5.5 RF sig al levels at s stem outlets 6

5.5.1 Minimum an maximum RF sig al levels 6

5.5.2 RF sig al level diferen es 6

5.6 Mutual isolation b twe n s stem outlets 6

5.6.1 Isolation b twe n two s bs rib rs 6

5.6.2 Isolation b twe n in ivid al outlets in one hou ehold 6

5.6.3 Isolation b twe n forward an return p th 6

5.7 Freq en y resp n e within a television c an el at an s stem outlet 6

5.7.1 Ampl tu e resp n e 6

5.7.2 Group delay 6

5.8 L n - erm freq en y sta i ty of distributed sig als at an s stem outlet 6

5.9 Ran om noise 6

5.10 Interferen e to television c an els 71

5.10.2 Intermod lation noise 71

5.1 DVB (PSK, QAM, OFDM) ad itional p rforman e req irements 71

5.1 1 BER 71

5.1 2 PER 71

5.1 3 White noise sig al margin (SM WN ) 71

5.1 4 Intermod lation noise sig al margin (SM IN ) 7

5.1 5 MER 7

5.1 6 Phase noise of a DVB sig al 7

5.12 DAB p rforman e 7

6 Performan e req irements at receivin anten as 7

6.1 General 7

6.2 Method of me s rement of field stren th 7

6.2.1 General 7

6.2.2 Eq ipment req ired 7

6.2.3 Con ection of the eq ipment 7

6.2.4 Me s rement proced re 7

6.2.5 Presentation of the res lts 7

6.3 Req irements 7

6.3.1 General 7

6.3.2 Field stren th req irements 7

6.3.3 Qual ty of received sig als 7

6.3.4 Safety 8

6.3.5 Electromag etic comp tibi ty (EMC) 8

6.4 Interferen e red ction 8

6.4.1 General 8

6.4.2 Active anten as 8

7 Performan e req irements at home network interfaces of ca le networks 8

7.1 General 8

7.2 Req irements at HNI1 for p s ive co xial home networks 81

7.2.1 General 81

7.2.2 Sig al levels at the HNI1 8

7.2.3 Mutual isolation b twe n two HNI1 8

7.2.4 Freq en y resp n e within an television c an el at the HNI1 8

7.2.5 L n - erm freq en y sta i ty of distributed RF signals at HNI1 8

7.2.6 Ran om noise at the HNI1 8

7.2.7 Interferen e to television c an els at the HNI1 8

7.2.8 Return p th req irements at the HNI1 8

7.3 Req irements at HNI2 for active co xial home networks 8

7.3.1 General 8

7.3.2 RF sig al levels at the HNI2 8

7.3.3 Mutual isolation b twe n two HNI2 8

7.3.4 Freq en y resp n e within an television c an el at the HNI2 8

7.3.5 L n - erm freq en y sta i ty of distributed RF signals at HNI2 9

7.3.6 Ran om noise at HNI2 9

7.3.7 Interferen e to television c an els at the HNI2 9

7.3.8 Return p th req irements at the HNI2 9

7.4 Req irements at HNI3 an at s stem outlet or terminal input when the home

7.4.1 General 9

7.4.2 Req irements at HNI3 9

7.4.3 Req irements at s stem output 9

7.4.4 Ad itional req irements at HNI3 for upstre m tran mis ion 9

7.5 Req irements at HNI3 (case C) 9

7.6 Req irements at HNI3 (case D) 9

An ex A (normative) Cor ection factors for noise 9

A.1 Sig al level me s rement 9

A.2 Noise level me s rement 9

An ex B (normative) Nul p ck t an PRBS definition 9

B.1 Nul p ck t definition 9

B.2 PRBS definition 9

An ex C (normative) Digital sig al level an b n width 10 C.1 RF/IF p wer ("car ier ) 10 C.2 Ban width of a digital sig al 10 C.2.1 Oc upied b n width 10 C.2.2 Noise b n width 101 C.2.3 Eq ivalent sig al b n width 101 C.3 Examples 10 An ex D (normative) Cor ection factor for a sp ctrum analy er 10 An ex E (informative) Dif eren es in some cou tries 10 E.1 Subclau e 3.1.4 , Norway 10 E.2 Subclau e 5.5.1, Ja an 10 E.3 Subclau e 5.5.2, Ja an 10 E.4 Subclau e 5.6.1, Ja an 10 E.5 Subclau e 5.7.1, Ja an 10 E.6 Subclau e 5.7.2 Ja an 10 E.7 Subclau e 5.8, Ja an 10 E.8 Subclau e 5.9, Ja an 10 E.9 Subclau e 5.10.1, Ja an 10 E.10 Subclau e 5.1 6, Ja an 10 E.1 Subclau e 6.3.3, Ja an 10 E.12 Clau e 7, Ja an 10 Bibl ogra h 10 Fig re 1 – Example of a master anten a television s stem (MATV) for ter estrial rece tion 1

Fig re 2 – Example of the he den of a master anten a television s stem for satel te (SMATV) rece tion 12 Fig re 3 – Example of a master anten a television s stem for ter estrial an satel te (SMATV) rece tion 12 Fig re 4 – Example of a ca led distribution s stem for television an sou d sig als 13 Fig re 5 – Sy tem model for down tre m direction of a ca le network for television an sou d sig als (CATV) 14 Fig re 6 – PSK mod lation (QPSK, BPSK or TC8PSK) 3

Fig re 7 – DVB-S2 mod lation (QPSK, 8PSK, 16APSK, 3 APSK) 3

Fig re 8 – DVB-C QAM mod lation 3

Fig re 10 – DVB-T OFDM mod lation 3

Fig re 1 – DVB-T2 OFDM mod lation 3

Fig re 12 – Referen e receiver for PSK demod lation (QPSK, BPSK or TC8PSK) 3

Fig re 13 – Referen e receiver for DVB-S2 demod lation (QPSK, 8PSK, 16APSK, 3 APSK) 3

Fig re 14 – Referen e receiver for DVB-C QAM demod lation 3

Fig re 15 – Referen e receiver for DVB-C2 demod lation 3

Fig re 16 – Referen e receiver for DVB-T OFDM demod lation 3

Fig re 17 – Referen e receiver (buf er model) for DVB-T2 OFDM demod lation 3

Fig re 18 – Test set up for BE R me s rement 41

Fig re 19 – Test set up for BER me s rement vers s S/N 4

Fig re 2 – Example of BER me s rement vers s S/N 4

Fig re 21 – Example of S/IN an BER vers s sig al level S for a ca le network without o tical l nk 4

Fig re 2 – Optical an co xial s bs stems of an HFC network 4

Fig re 2 – Test set up for SM WN an SM IN me s rement 4

Fig re 2 – Test set up for mod lation er or ratio (ME R) me s rement an phase j t er me s rement 51

Fig re 2 – Example of con tel ation diagram for a 6 QAM mod lation format 5

Fig re 2 – Example of con tel ation diagram for a 6 QAM mod lation format with arc d e to phase j ter 5

Fig re 2 – Test set up for phase noise me s rement 5

Fig re 2 – Example of mask for phase noise me s rements: PSK, APSK an QAM formats 5

Fig re 2 – Example of mask for phase noise me s rements: OFDM format 5

Fig re 3 – Ar an ement of test eq ipment for me s rement of mutual isolation b twe n s stem outlets 5

Fig re 31 – Ar an ement of test eq ipment for me s rement of freq en y resp n e within a c an el 6

Fig re 3 – Interpretation of display for me s rement of freq en y resp n e within a c an el 61

Fig re 3 – Home network typ s u ed to define the req irements at several HNI typ s (co xial) 81

Fig re A.1 – Noise cor ection factor CF vers s me s red level dif eren e D 9

Fig re E.1 – Sin le- req en y interferen e (6 QAM digital) (Ja an) 10 Fig re E.2 – Sin le- req en y interferen e (2 6 QAM digital) (Jap n) 10 Ta le 1 – Ap lcation of the method of me s rement 3

Ta le 2 – Freq en y distan e f m 5

Ta le 3 – Digital sig al levels at an s stem outlet 6

Ta le 4 – Maximum level diferen es at an s stem outlet b twe n distributed television c an els 6

Ta le 5 – Resid al car ier level at television or FM radio output within the same outlet or b twe n two dif erent outlets 6

Ta le 6 – Ampl tu e resp n e variation 6

Ta le 8 – Maximum deviation of con ersion freq en y for digital y mod lated DVB

sig als 6

Ta le 9 – RF sig al- o noise ratio at s stem outlet 6

Ta le 10 – Mod lation er or ratio ME R of DVB sig als 7

Ta le 1 – Phase noise of a DVB sig al (PSK, APSK an QAM) 7

Ta le 12 – Phase noise of a DVB-T or DVB-C2 sig al (COFDM) 7

Ta le 13 – Minimum field stren th levels recommen ed by CEPT [3] 7

Ta le 14 – Minimum sig al level at the he den input for the rece tion of DAB sig als 7

Ta le 15 – Minimum sig al level an RF sig al- o-noise ratio at the he den input for stationary rece tion of DVB-T sig als 7

Ta le 16 – Minimum sig al- o-noise ratio S/N at the he den input for DVB-T2 sig als 7

Ta le 17 – Minimum RF sig al- o-noise ratio at the he den input for the rece tion of DVB-S or DVB-S2 satel te sig als 7

Ta le 18 – Sig al level at HNI1 8

Ta le 19 – Maximum level dif eren es at HNI1 8

Ta le 2 – Ampl tu e resp n e variation at HNI1 8

Ta le 21 – Group delay variation at HNI1 8

Ta le 2 – Sig al level at HNI2 8

Ta le 2 – Maximum level dif eren es at HNI2 8

Ta le 2 – Ampl tu e resp n e variation at HNI2 9

Ta le 2 – Group delay variation at HNI2 9

Ta le 2 – Minimum RF sig al- o-noise ratios at HNI2 91

Ta le 2 – Minimum sig al level at coaxial terminal input (case A) or at co xial s stem outlet (case B) 9

Ta le A.1 – Noise cor ection factor 9

Ta le B.1 – Nul tran p rt stre m p ck t definition 9

Ta le C.1 – Examples of b n width for digital mod lation tec niq es 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION

Part 101: System performance of forward paths

loaded with digital channels only

1) Th Intern tio al Ele trote h ic l Commis io (IEC) is a worldwid org nizatio for sta d rdizatio c mprisin

al n tio al ele trote h ic l c mmite s (IEC Natio al Commite s) Th o je t of IEC is to promote

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this e d a d in a ditio to oth r a tivities, IEC p blsh s Intern tio al Sta d rds, Te h ic l Sp cific tio s,

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in th su je t d alt with ma p rticip te in this pre aratory work Intern tio al g v rnme tal a d n

n-g v rnme tal org nizatio s laisin with th IEC also p rticip te in this pre aratio IEC c la orates closely

with th Intern tio al Org nizatio for Sta d rdizatio (ISO) in a c rd n e with c n itio s d termin d b

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2) Th formal d cisio s or a re me ts of IEC o te h ic l maters e pres , as n arly as p s ible, a intern tio al

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intereste IEC Natio al Commite s

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Pu lc tio s is a c rate, IEC c n ot b h ld resp nsible for th wa in whic th y are use or for a y

misinterpretatio b a y e d user

4) In ord r to promote intern tio al u iformity, IEC Natio al Commite s u d rta e to a ply IEC Pu lc tio s

tra sp re tly to th ma imum e te t p s ible in th ir n tio al a d re io al p blc tio s An div rg n e

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th later

5) IEC itself d es n t pro id a y atestatio of c nformity In e e d nt c rtific tio b dies pro id c nformity

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p te t rig ts IEC sh l n t b h ld resp nsible for id ntifyin a y or al su h p te t rig ts

International Stan ard IEC 6 7 8-101 has b en pre ared by tec nical are 5: Ca le networks

for television sig als, sou d sig als an interactive services, of IEC tec nical commit e 10 :

Au io, vide an multimedia s stems an eq ipment

The text of this stan ard is b sed on the fol owin doc ments:

Ful information on the votin for the a proval of this stan ard can b fou d in the re ort on

votin in icated in the a ove ta le

The l st of al the p rts of the IEC 6 7 8 series, u der the general title Cab le n tworks for

tele isio signals, sound signals a d interactv services, can b fou d on the IEC we site

For the diferen es in some cou tries, se An ex E

The commite has decided that the contents of this publ cation wi remain u c an ed u ti

the sta i ty date in icated on the IEC we site u der "htp:/we store.iec.c " in the data

related to the sp cific publcation At this date, the publ cation wi b

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• with rawn,

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IMPORTANT – The 'colour in ide' logo on the cov r pa e of this publ c tion indic te

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INTRODUCTION

Stan ard an delvera les of the IEC 6 7 8 series de l with ca le networks in lu in

eq ipment an as ociated method of me s rement for he den rece tion, proces in an

distribution of television an sou d sig als an for proces in , interfacin an tran mit in al

kin s of data sig als for interactive services u in al a plca le tran mis ion media These

sig als are typical y tran mit ed in networks by freq en y-multiplexin tec niq es

This in lu es for in tan e

• regional an local bro db n ca le networks,

• exten ed satel te an ter estrial television distribution s stems,

• in ivid al satel te an ter estrial television receivin s stems,

an al kin s of eq ipment, s stems an in tal ation u ed in s c ca le networks, distribution

an receivin s stems

The extent of this stan ardization work is from the anten as an /or sp cial sig al source

inputs to the he den or other interface p ints to the network up to the terminal input of the

c stomer premises eq ipment

The stan ardization work wi con ider co xisten e with u ers of the RF sp ctrum in wired

an wireles tran mis ion s stems

The stan ardization of an u er terminals (i.e tu ers, receivers, decoders, multimedia

terminals, etc.) as wel as of an co xial, b lan ed an o tical ca les an ac es ories there f

is ex lu ed

The rece tion of television sig als in ide a buidin req ires an outdo r anten a an a

distribution network to con ey the sig al to the TV receivers

The in tal ation of an outdo r anten a for e c TV receiver s ould b avoided for tec nical,

economical an practical re son

In a bui din divided into a artment blocks, the in tal ation of a master anten a television

s stem for ter estrial (MATV) an /or satel te (SMATV) rece tion, as s own in Fig re 1,

Fig re 2, Fig re 3, Fig re 4 an Fig re 5, des ribin as an example the variou p rts of the

s stem is u ual Most of the terms u ed in the IEC 6 7 8 series can b refer ed to these

fig res

When sig als to b con eyed to the TV receivers are pick d up far away, for ge gra hical

re son , an the n mb r of u ers (s bs rib rs) is very hig , the in tal ation of a ca le

network u in co xial ca les an /or fibre o tic ca les is u ed, as in icated in Fig re 4,

des ribin as an example the variou p rts of the s stem

A s stem model of a ca le network is s own in Fig re 5, where the main p rts of the s stems

are in icated, as defined in Clau e 3

This stan ard de ls with digital sig als only

For forward p th analog e sig als refer to IEC 6 7 8-1 For return p th sig als (analog e

an digital) refer to IEC 6 7 8-10

Clau e 4 defines the method of me s rement of the s stem p rforman e p rameters at the

s stem outlet

Clau e 5 defines the s stem p rforman e l mits whic wi , with an u imp ired input,

(he den input sig al), prod ce picture an sou d sig als (at s stem outlets) where the

q al ty req irement is a q asi-er or- re (QEF) rece tion

Ap ro riate p rforman e req irements for the sig als at the receivin anten as site are given

in Clau e 6 in order to provide, at the input of the he den of the ca le network, for digital

Clau e 7 is a pl ca le to home networks (in lu in those of in ivid al receivin s stems)

u in co xial ca les, b lan ed ca les or o tical ca les an is primari y inten ed for television

sig als, sou d sig als an interactive services, o eratin b twe n ab ut 3 MHz an

3 0 0 MHz Clau e 7 also con iders b sic o erational c aracteristic of a home network,

sp cifies the req irements with resp ct to the home network interface (HNI) ta in into

ac ou t the p rforman e req irements given at the s stem outlet or at the terminal input

Some a artme ts (dwel n u its) are serv d with a h me n twork (H ), interfa e to th MATV system b th

h me n twork interfa e (H I)

Figure 1 – Ex mple of a ma ter a te na tele ision s stem

(2 o tpts)

NOT Distrib tio at th 1

t

IF o th same c ble as terestrialV F/UHF c a n ls

Figure 2 – Ex mple of the he de d of a ma ter a te na

tele ision s stem for s tel ite (SMATV) re eption

Fig re 3 – He den for ter e t ial an s tel te

IF usin multic ble a d multi-switc te h iq e

Figure 3 – Ex mple of a ma ter a te na tele ision

1 G z – 12 G z b n s

1t

IF (9 0 MHz – 2 15 MHz)

1

st

IF LNB

To th distr i utio n tw ork

IF LNB

In-h u e repeatin amplfier

Buidin Networ k (B ) with star to olog

Buidin n twork

In-h u e repeatin amplfier

Buidin Networ k (B ) w ith tr ee toolog

Home n twork

interf c (H I)

Lo al ter re tr ial ante na

Remote tere tial ante na

TA: tu k amplfier

TDA : tr un -distr ibutio amplfier

TBA : tu k -brid er amplfier

CABLE NETWORKS FOR TELEVISION SIGNALS,

Part 101: System performance of forward paths

loaded with digital channels only

This p rt of IEC 6 7 8 is a plca le to an ca le network (in lu in in ivid al receivin

s stems) distributin only digital c an els having in the forward p th a co xial ca le output

an primari y inten ed for television an sou d sig als o eratin b twe n a out 3 MHz an

3 0 0 MHz

This stan ard sp cifies the b sic method of me s rement of the o erational c aracteristic

of a ca le network havin co xial ca le outputs in order to as es the p rforman e of these

s stems an their p rforman e l mits

2 Normative referenc s

The fol owin doc ments, in whole or in p rt, are normatively referen ed in this doc ment an

are in isp n a le for its a pl cation For dated referen es, only the edition cited a pl es For

u dated referen es, the latest edition of the referen ed doc ment (in lu in an

amen ments) a pl es

IEC 6 0 0-7 5, Intern to al Electrote ch ical Vocab u lary – Cha ter 70 5: Radio wa e

p ro a ato

IEC 6 0 0-712, Intern to al Electrotech ical Vocab u lary – Ch pter712: Ante n s

IEC 6 0 0-7 5, Intern to al Electrotech ical Vocab u lary – Ch pte r 72 : Sp ace

radiocommu nicato s

IEC 6 7 8-1, Cab le n tworks for tele visio signals, sound sig als a d interactv service s –

Part 1: System p erforma ce of forward p aths

IEC 6 7 8-1-1, Cab le n tworks fortele isio signals, sound signals a d interactv services

– Part 1-1: RF cab lin fortwo wa h me n tworks

IEC 6 7 8-1-2, Cab le n tworks fortele isio signals sound signals a d interactv service s

– Part 1-2: Performa ce re qu ireme ts for signals delv re dat th system ou tlet in o erato

IEC 6 7 8-2, Cab le n tworks for tele visio signals, sound sig als a d interactv service s –

Part 2: Electroma n tc comp tb il y for e qu ipme nt

IEC 6 7 8-3, Cab le n tworks for tele visio signals, sound sig als a d interactv service s –

Part 3: Actv wide b and e u ipme t for cab le n tworks

IEC 6 7 8-3-1, Cab le n tworks fortele isio signals, sound signals a d interactv service s

– Part 3-1: Actv wideb and e quipm ent for cab le n tworks – Meth ds ofme sureme t of n

n-ln ariy forfu ll digital ch n el lo d wih D VB-C signals

IEC 6 7 8-5, Cab le n tworks for tele isio signals, sound signals a d inte ractv services –

Part 5: He ade d e uipme t

IEC 6 7 8-10, Cab le n tworks for tele isio sig als, sound signals a d interactv services

– Part 10 : System p erforma ce of retu rn p ths

IEC 6 7 8-1 , Cab le n tworks for tele isio sig als, sound signals a d interactv services

– Part 1 : Safety

IEC 6 7 8-12, Cab led distrib u tio systems for tele isio a d sound signals – Part 12:

Ele ctromagnetc comp tb il y of systems

IEC 6 9 6-2-4, Radio fre u e ncy a d co xial cab le as emb lies – Part 2-4: Detai

sp cificato for cab le as emb lies for radio a d TV receiv rs – Fre uency ra ge 0 MHz to

3 000 MHz, IEC 61 69-2 co ne ctors

IEC 6 9 6-2-5, Radio fre u ency a d co xial cab le as emb lies – Part 2-5: Detai

spe cificato for cab le as emb lie s for radio a d TV receiv rs – Fre uency ra ge 0 MHz to

1 000 MHz, IEC 61 69-2 co n ctors

IEC 6 9 6-2-6, Radio fre u e ncy a d co xial cab le as emb lies – Part 2-6: Detai

s pecificato forcab le as emb lies for radio a d TV receiv rs – Fre uency ra ge 0 MHz to

3 000 MHz, IEC 61 6 -2 co ne ctors

ISO/IEC 13 18-1, Informato te ch ology – G ene ric codin of mo in p ictu res a d

as ociated au dio informato – Part 1: Systems

ISO/IEC 13 18-2, Informato te ch ology – G en ric codin of mo in p ictu res a d

as ociated audio informato – Part 2: Vide

ISO/IEC 13 18-3, Informato tech olo y – G e neric codin of mo in p icture s a d

as ociate d au dio informato – Part 3: Audio

ISO/IEC 13 18-4, Informato tech olo y – G ene ric codin of mo in p ictu res a d

as ociated au dio informato – Part 4: Co forma ce testn

ISO/IEC 14 9 -1, Informato te ch ology – Codin ofaudio-visual ob jects – Part 1: Systems

ISO/IEC 14 9 -2, Informato tech olo y – Codin of audio-visual ob jects – Part 2: Visual

ISO/IEC 14 9 -3, Informato te ch ology – Codin of audio-visual ob je cts – Part 3: Au dio

EN 5 2 8, Ch racteristc of D AB re ceiv rs

ET I EN 3 0 4 1, Digial Vide Bro dcastn (D VB) – Framin structure , ch n el codin a d

modulato for1 / 2 G Hz satel te services

ET I EN 3 0 4 9, Digital Vide Bro dcastn (D VB) – Framin structure, ch n el codin a d

m odulato forcab le systems

ET I EN 3 0 4 8, D igital Vide o Bro dcastn (D VB) – Sp e cificato for Se rvice Informato

(SI in D VB systems

ET I EN 3 0 4 3, Digital Vide o Bro dcastn (D VB) – Satel te Master Ante nn Tele isio

(SMATV) distrib utio systems

ET I EN 3 0 7 4, Digial Vide Bro dcastn (D VB) – Framin structure, ch n elcodin a d

m odulato fordigital te rre strial tele visio

ETSI EN 3 0 7 8, D igital Vide Bro dcastn (D VB) – Mu ltp oint Vide Distrib u tio Syste ms

(MVDS) at 10 G Hz a d ab ov

ETSI EN 3 0 7 9, D igital Vide o Bro dcastn (D VB) – Microwa e Mu ltp oint D istrib utio

Systems (MMDS) b elow 10 G Hz

ETSI EN 3 2 3 7, DigitalVide o Bro dcastn (D VB) – Seco d gen rato framin structure,

G athe rin a d oth rb ro db and sate ll e ap p licato s

ETSI EN 3 2 7 5, D igital Vide Bro dcastn (D VB) – Frame structure, ch n e l codin a d

ETSI EN 3 2 7 9, D igital Vide Bro dcastn (D VB) – Frame structu re ch n el codin a d

modulato for a se co d gen rato digital tra smis io system for cab le systems (D VB -C2)

ETSI ETS 3 0 7 4, Satel te Earth Stato s a d Systems (SES) – TeleVisio Re ceiv -Only

(TVRO) sate ll e e arth stato s o eratn in th 1 / 2 G Hz fre uency b ands

ETSI TR 101 21 , D igital Vide Bro dcastn (D VB) – G u idelne s o imp lem entato a d

usage of Se rvice Informato (SI

ETSI TR 101 2 0, D igital Vide Bro dcastn (D VB) – Me surem ent gu idelne s for D VB

s ystems

ETSI TS 10 8 1, V1.1.1 (20 10-10), D igital Vide Bro dcastn (D VB) – Imp le me tato

guideln s for a se co d g ne rato digital tere strial tele visio b ro dcastn system (DVB-T2)

ETSI TS 10 9 1, V1.2.1 (2011-06), D igital Vide Bro dcastn (D VB) – Imple me tato

guideln s for a se co d gen rato digital cab le tra smis io system (D VB-C2)

3 Terms, definitions, symbols and abbreviations

3.1 Terms a d definitions

For the purp ses of this doc ment, the terms an definition given in IEC 6 0 0-7 5,

IEC 6 0 0-712 an IEC 6 0 0-7 5, as wel as the fol owin a ply

NOT Th most imp rta t d finitio s are re e te b low

home network that u es active eq ipment ( or example, ampl fiers) in ad ition to p s ive

eq ipment l k spl ters, ta s, s stem outlets, ca les an con ectors up to the co xial RF

interface (input an /or output of the terminal eq ipment for distributin an combinin RF

sig als

[SOURCE: IEC 6 7 8-1:2 14, 3.1.2]

3.1.3

a te na

p rt of a radio tran mitin or receivin s stem whic is desig ed to provide the req ired

coupl n b twe n a tran miter or a receiver an the medium in whic the radio wave

pro agates

Note 1 to e try: In pra tic , th termin ls of th a te n or th p ints to b c nsid re as th interfa e b twe n

th a te n a d th tra smiter or re eiv r are sp cifie

Note 2 to e try: If th tra smiter or re eiv r is c n e te to its a te n b a fe d r ln , th a te n is

c nsid re to b a tra sd c r b twe n th g id d ra io wa es of th fe d r ln a d th ra iate wa es in sp c

Note 3 to e try: Se also IEC 6 7 8-1:2 14, 3.1.3, IEC 6 7 8-1-1:2 14, 3.1.2 a d IEC 6 7 8-1-2:2 14, 3.1.2

[SOURCE: IEC 6 0 0-712:19 2, 712-01-01, modified – The de recated term "a rial" has

b en deleted, in Note 1 "s ould b sp cified" has b en re laced by "are sp cified", Note 2

has b en clarified an a Note 3 givin ad itional referen es has b en ad ed

3.1.4

a te na ampl fier

ampl fier (ofen a low-noise typ ) as ociated with an anten a

[SOURCE: IEC 6 7 8-1:2 14, 3.1.4]

3.1.5

at e uation

ratio of the input p wer to the output p wer of an eq ipment or s stem

Note 1 to e try: Th ratio is e pres e in d cib ls

[SOURCE: IEC 6 7 8-1:2 14, 3.1.5]

3.1.6

a tomatic gain control

AGC

automatic control of a device to maintain con tant the level of the sig al at its output, u in

that sig al as the control stimulu

Note 1 to e try: This n te a plesto th Fre c la g a e o ly

ampl fier for con ection in a tru k or bran h fe der to energize a distribution p int or one or

more bran h or spur fe ders

[SOURCE: IEC 6 7 8-1:2 14, 3.1.12]

3.1.1

broa c st a d communic tion te hnologie

BCT

group of a plcation in lu in RF distribution of sou d sig als an vide sig als

Note 1 to e try: In th lg t of this sta d rd, this is a gro p of a plc tio s usin th HF b n (3 MHz to 3 MHz),

th V F b n (3 MHz to 3 0 MHz) a d th UHF b n (3 0 MHz to 3 0 MHz) for tra smis io of tele isio

sig als, so n sig als a d intera tiv servic s,as wel as for in-h me inter-n tworkin

Note 2 to e try: This n te a plesto th Fre c la g a e o ly

3.1.13

bui ding network interfa e

BNI

interface to the network for the tran mis ion of television sig al, sou d sig als an interactive

services in ide a bui din (multi-dwel n s)

Note 1 to e try: This p int is also c le “tra sfer p int” or “e tern l n twork interfa e”

Note 2 to e try: This n te a plesto th Fre c la g a e o ly

[SOURCE: IEC 6 7 8-1:2 14, 3.1.15, modified – Note 1 has b en ad ed (Note 2 is for

information only)

3.1.14

CATV network

regional an local bro db n ca le networks desig ed to provide sou d an television sig als

as wel as sig als for interactive services to a regional or local are

Note 1 to e try: Origin ly d fin d as Commu ity Ante n Tele isio n twork

[SOURCE: IEC 6 7 8-1-1:2 14, 3.1.9 an IEC 6 7 8-1-2:2 14, 3.1.8]

3.1.15

combin r

device in whic sig als ar ivin at two or more input p rts are fed to a sin le output p rt

Note 1 to e try: Some forms of this d vic ma b use in th re erse dire tio as splters

[SOURCE: IEC 6 7 8-1:2 14, 3.1.19]

3.1.16

common pha e er or

CPE

er or in OFDM s stems cau ed by phase noise whic afects al car iers simultane u ly

Note 1 to e try: This n te a plesto th Fre c la g a e o ly

dBinlg

10

21

PP

Note 1 to e try: This ratio ma also b e pres e in terms of v lta es, o th c n itio th t b th U

2

21

UU

[SOURCE: IEC 6 7 8-1:2 14, 3.1.2 , modified – Note 1 to entry clarified

3.1.18

de ign d re eivin a te na

anten a that has the gain, the directivity an the p larization for receivin the wanted sig al

at the he den site with the req ired p rforman e

[SOURCE: IEC 6 7 8-1:2 14, 3.1.2 ]

3.1.19

dire tional coupler

p s ive sig al spl t in device, with minimum sig al los b twe n the input p rt an the

output p rt ( hrou h los ), a sp cified coupl n los b twe n the input p rt an the ta p rt

( a los ), an very hig los b twe n the output p rt an ta p rt (isolation)

[SOURCE: IEC 6 7 8-1:2 14, 3.1.2

ampl fier desig ed to fe d one or more bran h or spur fe ders

Note 1 to e try: This isa g n ral term embra in bra c amplfier a d sp r amplfier

[SOURCE: IEC 6 7 8-1:2 14, 3.1.2 ]

3.1.2

distribution point

p int where sig als are ta en from the tru k fe der to energize bran h an /or spur fe ders

Note 1 to e try: In some c ses, a distrib tio p int ma b dire tly c n e te toth h a e d

[SOURCE: IEC 6 7 8-1:2 14, 3.1.2 ]

3.1.2

DOCSIS

stan ard definin interface sp cification for ca le modems an ca le modem termination

s stems for hig -sp ed data commu ication over RF ca le networks

[SOURCE: IEC 6 7 8-1:2 14, 3.1.3 , modified – The secon prefer ed term has b en

deleted

3.1.2

dwel ing unit

DU

home or ofice where television an sou d sig als are distributed and where is ac es to

interactive services

Note 1 to e try: This n te a plesto th Fre c la g a e o ly

0)

[SOURCE: IEC 6 7 8-1:2 14, 3.1.3 ]

3.1.2

e ual s r

device desig ed to comp n ate, over a certain freq en y ran e, for the ampl tu e/ freq en y

distortion or the phase/req en y distortion introd ced by fe ders or eq ipment

Note 1 to e try: This d vic is for th c mp nsatio of ln ar distortio s o ly

[SOURCE: IEC 6 7 8-1:2 14, 3.1.3 ]

3.1.2

e te de s tel ite tele ision distribution network or s stem

distribution network or s stem desig ed to provide sou d an television sig als received by

satel te receivin anten a to hou ehold in one or more bui din s

Note 1 to e try: This kin of n twork or system c uld b e e tu ly c mbin d with terestrial a te n s for th

a ditio al re e tio of TV a d/or ra io sig als via terestrial n tworks

Note 2 to e try: This kin of n twork or system c uld also c ry c ntrol sig als for satel te switc e systems or

oth r sig als for sp cial tra smis io systems (e.g MoC or WiFi) in th return p th dire tio

e te d d ter e trial tele ision distribution n twork or s stem

distribution network or s stem desig ed to provide sou d an television sig als received by

ter estrial receivin anten a to hou ehold in one or more bui din s

Note 1 to e try: This kin of n twork or system c uld b e e tu ly c mbin d with a satel te a te n for th

a ditio al re e tio of TV a d/or ra io sig als via satel te n tworks

Note 2 to e try: This kin of n twork or system c uld also c ry oth r sig als for sp cial tra smis io systems

(e.g MoC or WiFi) in th return p th dire tio

tran mis ion p th formin p rt of a ca le network

Note 1 to e try: Su h a p th ma c nsist of a metal c c ble, o tic l fibre, wa e uid , or a y c mbin tio of th m

Note 2 to e try: By e te sio , th term is also a ple to p ths c ntainin o e or more ra io ln s

[SOURCE: IEC 6 7 8-1:2 14, 3.1.3 ]

3.1.31

ampl tude re pons

gain or los b twe n two p rts of an eq ipment or s stem ploted again t freq en y

[SOURCE: IEC 6 7 8-1:2 14, 3.1.3 , modified – The term "freq en y ampl tu e resp n e"

has b en c an ed to "ampltu e resp n e"

3.1.3

fre ue cy conv rter

device for c an in the car ier freq en y of one or more sig als

[SOURCE: IEC 6 7 8-1:2 14, 3.1.4 ]

3.1.3

gain

ratio of the output p wer to the input p wer of an eq ipment or s stem

Note 1 to e try: Gain is e pres e in d cib ls

[SOURCE: IEC 6 7 8-1:2 14, 3.1.4 ]

3.1.3

he de d

eq ipment whic is con ected b twe n receivin anten as or other sig al sources an the

remain er of the ca le networks, to proces the sig als to b distributed

Note 1 to e try: Th h a e d ma , for e ample, c mprise a te n amplfiers, fre u n y c n erters, c mbin rs,

se arators a d g n rators

RF ca le network in ide a sin le dwel n (one- ami y hou e or one u it of a multi-dwel n

bui din ) in the SOHO (Smal Ofices Home Of ices) en ironments or in the ro ms of hotels,

hospitals

Note 1 to e try: th prefere to olo y of this n twork is a star

Note 2 to e try: This n twork c ries tele isio sig als, so n sig als a d intera tiv servic s u to th c a ial

RF interfa e (in ut a d/or o tp t of th termin l e uipme t It ma c mprise a tiv e uipme t, p s iv e uipme t,

interface for ac es to the network for tran mis ion of television sig al, sou d sig als an

interactive services in ide a home (sin le dwel n )

[SOURCE: IEC 6 7 8-1:2 14, 3.1.4 ]

3.1.3

interc r ier interfere c

ICI

interferen e in OFDM s stems cau ed by phase noise

Note 1 to e try: This n te a plesto th Fre c la g a e o ly

3.1.4

individual s tel te tele ision re eivin s stem

s stem desig ed to provide sou d an television sig als received from satel te(s) to an

in ivid al hou ehold

Note 1 to e try: This kin of system c uld also c r y c ntrol sig als for satel te switc e systems or oth r sig als

for sp cial tra smis io systems (e.g MoC or WiFi)in th return p th dire tio

[SOURCE: IEC 6 7 8-1:2 14, 3.1.51]

3.1.41

individual ter e trial tele ision re eiving s stem

s stem desig ed to provide sou d an television sig als received via ter estrial bro d ast

networks to an in ivid al hou ehold

Note 1 to e try: This kin of system c uld also c ry oth r sig als for sp cial tra smis io systems (e.g MoC or

WiFi) in th return p th dire tio

[SOURCE: IEC 6 7 8-1:2 14, 3.1.5 ]

3.1.4

intermod lation

proces where y non-lne rity of eq ipment in a s stem prod ces output sig als (cal ed

intermod lation prod cts) at freq en ies whic are l ne r combination of those of the input

sig als

lg

101

0PP

[SOURCE: IEC 6 7 8-1:2 14, 3.1.5 1, modified – Notes 1 an 2 have b en deleted

dBinlg

2

01

UU

Note 1 to e try: This ma b e pres e in d cib ls (relativ to 1 µV in 7 Ω) or more simply in dB(µV) if th re is

n risk of ambig ity

[SOURCE: IEC 6 7 8-1:2 14, 3.1.5 2, modified – Note 1 has b en deleted an former

Note 2 has b come Note 1

3.1.4

loc l broa ba d c ble network

network desig ed to provide sou d an television sig als as wel as sig als for interactive

services to a local are (e.g one town or one vi age)

loope s stem outlet

device throu h whic the spur fe der p s es an to whic is con ected a receiver le d,

exten ed ter estrial television distribution networks or s stems desig ed to provide sou d an

television sig als received by ter estrial receivin anten as to hou ehold in one or more

bui din s

Note 2 to e try: This kin of n twork or system c uld b e e tu ly c mbin d with a satel te a te n for th

a ditio al re e tio of TV a d/or ra io sig alsvia satel te n tworks

Note 3 to e try: This kin of n twork or system c uld also c ry oth r sig als for sp cial tra smis io systems

(e.g MoC or WiFi) in th return p th dire tio

[SOURCE: IEC 6 7 8-1:2 14, 3.1.6 ]

3.1.51

modulation er or ratio

MER

s m of the s uares of the mag itu es of the ide l s mb l vectors divided by the s m of the

s uares of the mag itu es of the s mb l er or vectors of a seq en e of s mb ls

Note 1 to e try: Th result b in e pres e as a p wer ratio in d cib l as folows

dBinlg

10

1

221

22

N

j

jj

QI

QI

bui din with man homes or ofices u ed by sin le owners where television sig als, sou d

sig als are distributed an where is ac es to interactive services

Note 1 to e try: This n te a plesto th Fre c la g a e o ly

Note 1 to e try: Se also IEC 6 7 8-1:2 14, 3.1.6

[SOURCE: IEC 6 0 0-7 1:19 8, 7 1-0 -10, modified – Term an definition have b en

mutu l isolation

at en ation b twe n two sp cified s stem outlets at an freq en y within the ran e of the

s stem u der in estigation whic is alway sp cified, for an p rtic lar in tal ation, as the

minimum value o tained within sp cified freq en y l mits

p rt of the TVRO in tal ed in a p sition within lne of sig t to the satel te(s) to b received

Note 1 to e try: An o td or u it n rmaly c mprises two main p rts:

a) th a te n su -system whic c n erts th in id nt ra iatio field into a g id d wa e;

Th a te n su -system c nsists of

– th main refle tor, th se o d ry refle tors (if a y) a d th ra iator,

– th fe d r n twork, whic ma in lu e o tio al p larizin d vic s, to re eiv orth g n l ln ar

p larizatio s, in a simulta e us or e clusiv wa

Inste d of refle tor(s) e d n twork su system, oth r ty es of a te n s ma b use , for e ample, flat ara

a te n s

b) th LNB(s), whic ma in lu e a o tio al fiter, is a d vic with v ry low intern l n ise th t amplfies th

re eiv d sig als in th RF b n a d c n erts th m to interme iate fre u n ies, (ofe c le th 1

emis ion on a freq en y or on freq en ies outside the neces ary b n width whic res lts

from the mod lation proces , but ex lu ing spuriou emis ion

[SOURCE: IEC 6 7 8-1:2 14, 3.1.7 ]

3.1.61

pha e nois

phase in ta i ty of ran om nature

Note 1 to e try: Th so rc s of ra d m sid b n n ise in a osci ator are th rmal n ise, flc er n ise a d sh t

n ise

Note 2 to e try: Ea h time th sig al is fre u n y pro es e this sig alis d gra e b a a ditio of p ase n ise

d e to p ase n ise of th lo al osci ator Fre u n y c n erters or mo ulators g n rate p ase n ise

[SOURCE: IEC 6 7 8-1:2 14, 3.1.7 ]

re eiv r le d

le d whic con ects the s stem outlet to the s bs rib r’s eq ipment

Note 1 to e try: Th d finitio of a re eiv r le d in lu es a y fiters or/a d b lu tra sformers in a ditio to th

c ble

[SOURCE: IEC 6 7 8-1:2 14, 3.1.7 , modified – The Note 1 has b en refined

3.1.6

re ional broa ba d c ble network

network desig ed to provide sou d an television sig als as wel as sig als for interactive

services to a regional are coverin several town an /or vi ages

Note 1 to e try: Two system c nfig ratio sare d fin d in E SI EN 3 0 4 3 as folows:

• SMATV system A, b se o tra sp re t tra smo ulatio of QP K satel te sig als into QAM sig als to b

distrib te to th user;

• SMATV system B, b se o dire t distrib tio of QP K sig als to th user, with two o tio s:

– SMATV-IF distrib tio in th satel te IF b n (a o e 9 0 MHz)

– SMATV-S distrib tio inth V F/U F b n , for e ample in th e te d d S b n (2 0 MHz to 4 0 MHz)

Note 2 to e try: This n te a ples to th Fre c la g a e o ly

[SOURCE: IEC 6 7 8-1:2 14, 3.1.7 ]

3.1.6

s parator

device in whic the sig al energ , coverin a freq en y b n , at one input p rt is divided

b twe n two or more output p rts e c of whic covers a p rt of that freq en y b n

Note 1 to e try: For e ample, a diple er isa two-o tp t se arator

Note 2 to e try: Some forms of this d vic ma b use in th re erse dire tio for c mbinin

sig al- o-noise ratio for a digital y mod lated sig al in the RF b n

[SOURCE: IEC 6 7 8-1:2 14, 3.1.8 , modified – The s bs ripts of the s mb l have b en

single dwel ing u it

SDU

home or ofice u ed by a sin le owner where television sig als, sou d sig als are distributed

an there is ac es to interactive services

Note 1 to e try: This n te a plesto th Fre c la g a e o ly

he den in block of flats or in buit up sites to fe d TV c an els received by satel te into the

hou e network or the spur network

Note 1 to e try: In some c ses, a distrib tio p int ma b c n e te dire tly to th h a e d

[SOURCE: IEC 6 7 8-1:2 14, 3.1.8 ]

3.1.7

exten ed distribution networks or s stems desig ed to provide sou d an television sig als

received by satel te receivin anten a to hou ehold in one or more buidin s

Note 1 to e try: Origin ly d fin d as satel te master a te n tele isio n twork

Note 2 to e try: This kin of n twork or system c uld b e e tu ly c mbin d with terestrial a te n s for th

a ditio al re e tio of TV a d/or ra io sig als via terestrial n tworks

Note 3 to e try: This kin of n twork or system c uld also c ry c ntrol sig als for satel te switc e systems or

oth r sig als for sp cial tra smis io systems (e.g MoC or WiFi) in th return p th dire tio

[SOURCE: IEC 6 7 8-1:2 14, 3.1.8 ]

3.1.7

spl t er

spur u it

device in whic the sig al p wer at the (input p rt is divided eq al y or u eq al y b twe n

two or more (output p rts

Note 1 to e try: Some forms of this d vic ma b use in th re erse dire tio for c mbinin sig al e erg

emis ion on a freq en y or freq en ies whic are outside the neces ary b n width an

whose level may b red ced without af ectin the cor esp n in tran mis ion of information

a d fre u n y c n ersio pro u ts b t e clu e o t of b n emis io s.

eq ipment a le to receive the distributed sig als or to sen (via a ca le modem) return

sig als for interactive services

EX MPLE Tele isio re eiv r, ra io re eiv r, set o b x, etc

Note 1 to e try: This n te a plesto th Fre c la g a e o ly

device for intercon ectin a s bs rib r fe der an a receiver le d

Note 1 to e try: This n te a plesto th Fre c la g a e o ly

Note 2 to e try: This n te a plesto th Fre c la g a e o ly.

Symb ls Terms Symb ls Terms

3.3 Ab re iations

ALC

automatic level control

AM

ampl tu e mod lation

information interc an e

D/A

digital- o-analog e con erter

DAB

digital au io bro d astin

DOCSIS Data Over Ca le Service

Interface Sp cification

DTH direct to home

s stem for digital ca le television

(ETSI EN 3 0 4 9)

DVB-C2 digital vide bro d astin

b sel ne s stem for digital ca le

television secon generation

(ETSI EN 3 2 7 9)

DVB-CS digital vide bro d astin b selne

s stem for SMATV distribution

s stems (ETSI EN 3 0 4 3)

DVB-MC digital vide bro d astin

b sel ne s stem for multi-p int

vide distribution s stems

b low 10 GHz

(ETSI EN 3 0 7 9)

DVB-MS digital vide bro d astin b selne

s stem for multi-p int vide

distribution s stems at 10 GHz an

a ove (ETSI EN 3 0 7 8)

DVB-S

digital vide bro d astin

b sel ne s stem for digital

satel te television

(ETSI EN 3 0 4 1)

DVB-S2

digital vide bro d astin b selne

s stem for digital satel te

television secon generation

(ETSI EN 3 2 3 7)

DVB-T digital vide bro d astin

b sel ne s stem for digital

ter estrial television

(ETSI EN 3 0 7 4)

DVB-T2 digital vide bro d astin b selne

s stem for digital ter estrial

television secon generation

ENB eq ivalent noise b n width END eq ivalent noise degradation

stan ard

ETSI Euro e n Telecommu ication

Stan ard In titute

FFT fast Fourier tran form FIFO first in, first out s if register

IRE In titute of Radio En ine rs ITS in ertion test sig al

ITU International

Telecommu ication Union

LDPC low-den ity p rity c eck (codes)

LDTV low-definition television LNB low noise block con erter

( req en y con erter in the focal

p int of a p ra ol c anten a)

p a - o-average p wer ratio

QPSK q aternary phase s if k yin RF radio freq en y

SOHO smal ofice, home ofice SSLA sectional slo e of active co xial

home network

SSLP sectional slo e of p s ive

co xial home network

T-STD Stan ard television

TC8PSK trel s coded 8-phase s if

UHF ultra-hig freq en y uimsbf u sig ed integer, most sig ificant

a) the car ier is not present in the mod lated sig al an therefore can ot b me s red (e.g.

in DVB s stems u in PSK, APSK or QAM mod lation) or there are thou an s of car iers

(e.g in DVB s stems u in COFDM mod lation);

b) the mod lated sig al has a sp ctrum that is flat in the b n width an is simi ar to noise;

c) the p rameters that af ect the q al ty of the received sig al are related to the bit an word

er ors introd ced by the c an el (noise, ampl tu e an phase resp n e ineq al ties,

ec o s, etc.) b fore demod lation an er or cor ection

4.2 Ba ic a s mptions a d me s reme t interfa e

The method of me s rement for digital y mod lated sig als are b sed on the as umption

that:

a) the MPEG-2/MPEG-4 tran p rt stre m (TS) is the sp cified input an output sig al for al

the b selne s stems, i.e for satel te, ca le, SMATV, MMDS/MVDS an ter estrial

distribution;

b) the digital y mod lated sig als received by satel te are mod lated in the PSK/APSK

formats, i.e ac ordin to ET I EN 3 0 4 1 an ET I EN 3 2 3 7 for the variou

PSK/APSK formats, an can b distributed in the same format in ca le s stems (SMATV

s stems);

c) the digital y mod lated sig als received by satel te are distributed in CATV s stems in the

QAM format, i.e ac ordin to ET I EN 3 0 4 9 or ETSI EN 3 2 7 9;

d) the digital y mod lated sig als received from ter estrial bro d astin in the OFDM format

may b distributed in SMATV s stems in the same OFDM format or in CATV s stems in

DVB-C or DVB-C2 format via b se an demod lation an remod lation;

e) a I/Q b se an sig al source for PSK, QAM or OFDM formats is avai a le, as des rib d in

Fig re 6, Fig re 7, Fig re 8, Fig re 9, Fig re 10 an Fig re 1 ; a pro riate interfaces are

ac es ible an are con istent with the DVB-SI doc ments (se doc ment

Mode adatation for

input mode "A " (sin le PLP)

or input mode "B" (multiple

PLP)

B

Str eam adatation for

input mode " A " (sin le PLP)

or input mode " B " (multiple

PLP)

Bit Inter lev ed Codin

an Mod lation (BICM)

Fr ame buider

f a referen e receiver for PSK, APSK, QAM or OFDM formats is avai a le as des rib d in

Fig re 12, Fig re 13, Fig re 14, Fig re 15, Fig re 16 an Fig re 17, where a pro riate

interfaces are in icated;

Fig re 16 – Refere c re eiv r for DVB-T OFDM d modulation

Figure 17 – Refere c re eiv r (buf er model) for DVB-T2 OFDM demodulation

NOT 2 Th fre u n y ra g of th b n s for th 1

t

IF a d for V F/UHF tu ers d p n s o th fre u n y

alo atio pla of e c c u try Ex mples are giv n b low:

1

t

IF: 9 0 MHz to 215 MHz V F/U F: 4 MHz to 8 2 MHz (Euro e)

9 MHz to 7 0 MHz (Ja a )

g) the decoder implementation wi not af ect the con isten y of the res lts The MPEG-2

T-STD model con traints, as defined in ISO/IEC 13 18-1 (MPEG-2 s stem), s al b

satisfied as sp cified in ISO/IEC 13 18-4 (MPEG-2 compl an e testin )

4.3 Signal le el

The level of a digitaly mod lated sig al is given by the RMS p wer of the sig al within the

eq ivalent noise b n width an can b expres ed in dB(mW) or in dB(µV) refer ed to 7 Ω

This me s rin method a pl es to the me s rement of the level of digitaly mod lated sig als

u in the mod lation method :

• PSK (ET I EN 3 0 4 1);

• PSK, APSK (ET I EN 3 2 3 7);

• QAM (ETSI EN 3 0 4 9, ETSI EN 3 0 4 3);

• an COFDM (ETSI EN 3 0 7 4, ETSI EN 3 2 7 5 an ET I EN 3 2 7 9)

This method of me s rement can also b u ed for DAB an NICAM sig als

Becau e the mod lated sig al is simi ar in c aracteristic to white noise in the freq en y

domain, the me s rement is b sed on the u e of a s ita le sp ctrum analy er, a le to tu e

the freq en y ran e of the c an el an to display the whole b n width, to me s re sp ctral

p wer den ity The res lt may b expres ed in dB(mW/Hz) The sig al level in dB(mW) or

in dB(µV) can b calc lated if the b n width is known

NOT Also a v ctor sig al a alyser c n b use or a suita le me surin set d sig e a d c lbrate for sig al

le el me sureme t of digitaly mo ulate sig als

The me s rement can b p rformed at the s stem outlet, at the output of a distribution

eq ipment (p s ive or active), at the output of the he den or at the output of an outdo r u it

(SHF receiver) for satel te rece tion

4.3.2 Equipme t re uire

The eq ipment req ired is a sp ctrum analy er havin a known noise b n width an a

cal brated display of the tu ed sig al The calbration ac urac s ould b prefera ly within

± ,5 dB an s al b stated with the res lts

The eq ipment s al b a le to tu e the nominal freq en y ran e of the s stem

4.3.3 Conne tion of the e uipme t

Con ect the me s rin eq ipment to the s stem outlet or to the p int where the me s rement

s al b p rformed, u in s ita le ca le an con ectors, ta in care to maintain cor ect

imp dan e matc in

4.3.4 Me s reme t proc dure

The me s rement proced re is as fol ows

a) When sig al levels are to b me s red where a hig ambient electromag etic field is

present, the me s rin eq ipment s al b c eck d for spuriou re din s Con ect a

s ielded termination to its input ca le, place b th the meter an the le d a proximately in

their me s rin p sition an c eck that there is a neglgible re din at the freq en y(ies)

an on the meter ran es to b u ed

b) Tu e the sp ctrum analy er on the c an el that s al b me s red (selectin the centre

freq en y of the sp ctrum analy er) an select the sp n an level set in s to s ow the

whole c an el whose b n width de en s on the typ of mod lation u ed Examples of

the eq ivalent sig al b n width BW for digital y mod lated sig als are in icated in

An ex C

c) Set the resolution b n width RSBW of the sp ctrum analy er to 10 kHz an set the vide

b n width to 10 Hz or lower to o tain a smo th display

d) Me s re the level S of the flat to of the displayed sig al in dB(µV) or in dB(mW) u in

the display l ne c rsor if this fe ture is avaia le

If the sp ctrum of the sig al do s not have a flat to , d e to ec o s, me s re the sig al

level at the centre freq en y of the c an el

e) Me s re on the displayed c an el the two freq en ies at whic the level is 3 dB lower

than the maximum level S ; the diferen e b twe n these two freq en ies is as umed to

b the eq ivalent sig al b n width BW expres ed in Hz

f Calc late level S of the sig al u in the fol owin formula:

slg

R SB WBW