Iec cispr 13 2015

1 4.4 Wanted sig al an disturb n e voltage at the RF output of eq ipment with in orp rated or with ad -on RF vide mod lator.. 18 5.4.2 Me s rement on receivers or as ociated eq ipment wi

Sound and telev ision broadcast receiv ers and associated equipment – Radio

disturbance char acteristics – Limits and methods of measur ement

Récepteurs de radiodif usion et de télév ision et équipements associés –

Caractéristiques des perturbations radioélectriques – Limites et méthodes de

INT RNA TIONAL SPECIAL COMMITT E ON RA IO INTERFERENCE

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Sound and telev ision broadcast receiv ers and associated equipment – Radio

disturbance char acteristics – Limits and methods of measur ement

Récepteurs de radiodif usion et de télév ision et équipements as ocié –

Caractéristiques des perturbations radioélectriques – Limites et méthodes de

mesure

INT ERNAT IONAL

ELECT ROT ECHNICAL

COMMIS ION

ELECT ROT ECHNIQUE

INT ERNAT IONALE

®

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INTERNATIONAL S ECIAL COMMIT EE ON RA DIO INT RF RENCE

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CISPR 1 3

Editio 5.1 2 15-01

Sound and telev ision broadcast receiv ers and associated equipment – Radio

disturbance char acteristics – Limits and methods of measur ement

Récepteurs de radiodif usion et de télév ision et équipements associés –

Caractéristiques des perturbations radioélectriques – Limites et méthodes de

INT RNA TIONAL SPECIAL COMMITT E ON RA IO INTERFERENCE

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CONTENTS

FOREWORD 5

INTRODUCTION 7

1 Sco e an o ject 8

2 Normative referen es 8

3 Terms, definition an a breviation 9

3.1 Terms an definition 9

3.2 Ab reviation 10 4 Limits of disturb n e 1

4.1 General 1

4.2 Disturb n e voltage at the main terminals 1

4.3 Disturb n e voltage at the anten a terminals 1

4.4 Wanted sig al an disturb n e voltage at the RF output of eq ipment with in orp rated or with ad -on RF vide mod lator 12 4.5 Disturb n e p wer 13 4.6 Radiated disturb n es 13 4.7 Radiated p wer 14 5 Me s rement proced res 15 5.1 General 15 5.2 Test sig als 15 5.3 Disturb n e voltage at the main terminals in the freq en y ran e 15 kHz to 3 MHz 16 5.3.1 General 16 5.3.2 Television receivers 16 5.3.3 Sou d receivers 17 5.3.4 As ociated eq ipment 17 5.3.5 Au io ampl fiers 18 5.3.6 Me s rement of the disturb n e voltage at the main terminals 18 5.4 Me s rement of disturb n e voltage at the anten a terminals of a receiver an as ociated eq ipment with an RF input in the freq en y ran e 3 MHz to 2,15 GHz 18 5.4.1 General 18 5.4.2 Me s rement on receivers or as ociated eq ipment with co xial anten a con ection 19 5.4.3 Me s rement on receivers or as ociated eq ipment with b lan ed anten a con ectors 19 5.4.4 Presentation of the res lts 19 5.5 Me s rement of the wanted sig al an disturb n e voltage at the RF output terminals of as ociated eq ipment with an RF vide mod lator, in the freq en y ran e 3 MHz to 2,15 GHz 2

5.5.1 General 2

5.5.2 Method of me s rement 2

5.6 Me s rement of disturb n e p wer of as ociated eq ipment (vide recorders ex lu ed) in the freq en y ran e 3 MHz to 1 GHz 2

5.6.1 General 2

5.6.2 Method of me s rement 2

5.6.3 Me s rin proced re 21

+AMD1:2 15 CSV  IEC 2 15

5.7 Me s rement of radiation in the freq en y ran e 3 MHz to 1 GHz at 3 m

distan e 21

5.7.1 General 21

5.7.2 Me s rin site req irements 2

5.7.3 Disp sition of the eq ipment u der test 2

5.7.4 Disp sition of the field-stren th meter 2

5.7.5 Me s rement proced re 2

5.8 Me s rement of radiation in the freq en y ran e 1 GHz to 18 GHz 2

5.8.1 Me s rin set up 2

5.8.2 Test site valdation 2

5.8.3 Me s rin proced re 2

5.8.4 Presentation of the res lts 2

5.9 Me s rement of the local os i ator p wer at the input terminal of the outdo r u it 2

6 Interpretation of CISPR radio disturb n e lmits 2

6.1 Compl an e with this stan ard 2

6.2 Sig ifican e of a CISPR l mit 2

6.3 Compl an e with lmits on a statistical b sis 2

7 Me s rement u certainty 2

An ex A (normative) Bro d ast receivers for digital sig als 3

An ex B (informative) Sp cification of the wanted sig al 3

Bibl ogra h 4

Fig re 1 – Colour b r sig al levels ac ordin to ITU-R Recommen ation BT 4 1-1 (se 5.2) ( red” sig al) 2

Fig re 2 – Teletext picture (se 5.2) 2

Fig re 3 – Example of an artificial main network 5 Ω-5 µH (se 5.3.1) 2

Fig re 4 – Example of artificial main network 5 Ω-5 µH-5 Ω (se 5.3.1) 2

Fig re 5 – Me s rement of the radiofreq en y disturb n e voltage injected into the main (se 5.3.1) 3

Fig re 6 – Me s rement of the radiofreq en y disturb n e voltage injected into the main ( o view) (se 5.3.1) 3

Fig re 7 – Circ it ar an ement for the me s rement of disturb n e voltages at the co xial anten a terminals (se 5.4.2) 31

Fig re 8 – Circ it ar an ement for receivers with b lan ed anten a con ection (se 5.4.3) 31

Fig re 9 – Circ it ar an ement for the me s rement of the wanted sig al an disturb n e voltage at the RF output of vide recorders (se 5.5.2) 31

Fig re 10 – Circ it ar an ement for the me s rement of disturb n e p wer of as ociated eq ipment (vide recorders ex lu ed) (se 5.6.3) 3

Fig re 1 – Me s rin site (se 5.7.2) 3

Fig re 12 – Chec of the site s ita i ty (se 5.7.2) 3

Fig re 13 – The retical site aten ation c rve for the ran e 8 MHz to 1 GHz (se 5.7.2) 3

Fig re 14 – Op n- ield me s rement at 3 m distan e (se 5.7.3) 3

Fig re A.1 – Me s rement of the radiofreq en y disturb n e voltage injected into the main in the freq en y ran e 15 kHz to 3 MHz (side view) 3

Fig re A.3 – Typical size of isolation tran former for 4 MHz to 1,5 GHz 3

Fig re A.4 – Typical c aracteristic of in ertion los of isolation tran former for 4 MHz

to 1,5 GHz 3

Ta le 1 – Limits of disturb n e voltage at the main terminals 1

Ta le 2 – Limits of disturb n e voltage at the anten a terminals 12

Ta le 3 – Limits of the wanted sig al an disturb n e voltage at RF output terminals of

eq ipment with RF vide mod lator 13

Ta le 4 – Limits of disturb n e p wer 13

Ta le 5 – Limits of radiated disturb n es at 3 m distan e 14

Ta le 6 – Limits of radiated p wer of tu er u its of direct to home satel te receivers 14

Ta le 7 – Limits of radiated p wer of outdo r u its of direct to home satel te receivers 15

+AMD1:2 15 CSV  IEC 2 15

INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE

1) Th Intern tio al Ele trote h ic l Commis io (IEC) is a worldwid org niz tio for sta d rdiz tio 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

intern tio al c -o eratio o al q e tio s c n ernin sta d rdiz tio in th ele tric l a d ele tro ic field To

this e d a d in a ditio to oth r a tivitie , IEC p bls e Intern tio al Sta d rd , Te h ic l Sp cific tio s,

Te h ic l Re orts, Pu lcly Av ia le Sp cific tio s (PAS) a d Guid s (h re fer refere to a “IEC

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in th s bje 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 niz tio s laisin with th IEC als p rticip te in this pre aratio IEC c la orate clo ely

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

a re me t b twe n th two org niz tio s

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

c n e s s of o inio o th rele a t s bje ts sin e e c te h ic l c mmite h s re re e tatio from al

intere te IEC Natio al Commite s

3) IEC Pu lc tio s h v th form of re omme d tio s for intern tio al u e a d are a c pte b IEC Natio al

Commite s in th t s n e Whie al re s n ble eforts are ma e to e s re th t th te h ic l c nte t of IEC

Pu lc tio s is a c rate, IEC c n ot b h ld re p n ible for th wa in whic th y are u e or for a y

misinterpretatio b a y e d u er

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 s are 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

b twe n a y IEC Pu lc tio a d th c re p n in n tio al or re io al p blc tio s al b cle rly in ic te in

th later

5) IEC its lf d e n t pro id a y ate tatio of c nformity In e e d nt c rtific tio b die pro id c nformity

a s s me t s rvic s a d, in s me are s, a c s to IEC mark of c nformity IEC is n t re p n ible for a y

s rvic s c rie o t b in e e d nt c rtific tio b die

6) Al u ers s o lde s re th t th y h v th late t e itio of this p blc tio

7) No la i ty s al ata h to IEC or its dire tors, emplo e s, s rv nts or a e ts in lu in in ivid al e p rts a d

memb rs of its te h ic l c mmite s a d IEC Natio al Commite s for a y p rs n l injury, pro erty d ma e or

oth r d ma e of a y n ture wh ts e er, wh th r dire t or in ire t, or for c sts (in lu in le al fe s) a d

e p n e arisin o t of th p blc tio , u e of, or rela c u o , this IEC Pu lc tio or a y oth r IEC

Pu lc tio s

8) Ate tio is drawn to th Normativ refere c s cite in this p blc tio Us of th refere c d p blc tio s is

in is e s ble for th c re t a plc tio of this p blc tio

9) Ate tio is drawn to th p s ibi ty th t s me of th eleme ts of this IEC Pu lc tio ma b th s bje t of

p te t rig ts IEC s al n t b h ld re p n ible for id ntifyin a y or al s c p te t rig ts

This Cons l d te v rsion of CISPR 13 be rs the e itio number 5.1 It c nsists of the

fifth e ition (2 0 -0 ) [do ume ts CISPR/I/2 6/FDIS a d CISPR/I/2 7/RVD] a d its

ame dme t 1 (2 15-01) [d c me ts CIS/I/4 1/FDIS a d CIS/I/4 9/RVD] The te hnic l

c nte t is id ntic l to the ba e e ition a d its ame dme t

In this Re l ne v rsion, a v rtic l l ne in the margin s ows where the te hnic l c nte t is

modifie by ame dme t 1 Additio s a d deletions are displa e in re , with deletions

being struc throug A s parate Fin l version with al c a ge a c pte is a ai able in

this publ c tion

International Stan ard CISPR 13 has b en pre ared by CISPR s bcommite I

Electromag etic comp tibi ty of information tec nolog eq ipment, multimedia eq ipment an

receivers

This publ cation has b en drafed in ac ordan e with the ISO/IEC Directives, Part 2

The commite has decided that the contents of the b se publ cation an its amen ment 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 publ cation At this date, the

IMPORTANT – The 'c lour inside' logo o the c v r pa e of this publ c tion in ic te

that it c ntain c lo rs whic are c n idere to be u eful for the c r e t understa ding

of its c nte ts Us rs s o ld th refore print this d c me t using a c lour printer

+AMD1:2 15 CSV  IEC 2 15

The CISPR recommen s that the lmits an method of me s rement of radio disturb n e

c aracteristic of sou d an television receivers contained in the latest edition of CISPR 13,

in lu in amen ments, b u ed, without regional or national ad en a or modification The

req irements are con idered s f icient to re c adeq ate emis ion levels to protect radio

bro d ast an telecommu ication services an to alow other a p ratu to o erate as inten ed

at a re sona le distan e

SOUND AND TELEVISION BROADCAST RECEIVERS

1 Sc pe and object

This International Stan ard a ples to the generation of electromag etic energ from sou d

an television receivers for the rece tion of bro d ast an simi ar tran mis ion an from

as ociated eq ipment The freq en y ran e covered exten s from 9 kHz to 4 0 GHz

No me s rements ne d b p rformed at freq en ies where no l mits are sp cified

Receivin s stems for col ective rece tion, in p rtic lar:

– ca le distribution he d en s (Commu ity Anten a Television, CATV);

– commu ity rece tion s stems (Master Anten a Television, MATV)

are covered by IEC 6 7 8-2

Bro d ast receivers for digital sig als are covered by An ex A an An ex B

Information tec nolog eq ipment (ITE) is ex lu ed, even if inten ed to b con ected to a

television bro d ast receiver

The telecommu ication p rt of bro d ast receivers, inten ed to b con ected to a tel

e-commu ication network, is covered by CISPR 2

In ad ition, me s rements at the telecommu ication p rt are p rformed with the bro d ast

rece tion fu ction , whic are in e en ent from the telecommu ication fu ction, disa led

d rin the me s rement

PC tu er card are me s red ac ordin to the relevant clau es of this stan ard

This stan ard des rib s the method of me s rement a pl ca le to sou d an television

receivers or as ociated eq ipment an sp cifies l mits for the control of disturb n e from s c

eq ipment

For multifu ction eq ipment whic is s bjected simultane u ly to dif erent clau es of this

stan ard an /or other stan ard , detais are given in 4.1

The fol owin referen ed doc ments are in isp n a le for the a pl cation of this doc ment For

dated referen es, only the edition cited a ples For u dated referen es, the latest edition of

+AMD1:2 15 CSV  IEC 2 15

CISPR 16-1-1:2 0 , Sp e cific to n fo r radio disturbance and immuniy me asurin ap p aratus and

metho ds – Part 1-1: Radio disturbance and immuniy mea urin ap p aratus – Me asurin

ap p aratus

1

Amen ment 1 (2 0 )

Amen ment 2 (2 0 )

CISPR 16-1-2:2 0 , Sp e cific to fo r radio disturbance and immuniy me asurin ap p aratus and

me th ds – Part 1-2: Radio disturb ance and immuniy mea urin ap p aratus – Anci ary

e quip me nt – Co ducte d disturbance s

2

Amen ment 1 (2 0 )

Amen ment 2 (2 0 )

CISPR 16-1-3:2 0 , Sp e cific to fo r radio disturbance and immuniy me asurin ap p aratus and

me th ds – Part 1-3: Radio disturb ance and immuniy mea urin ap p aratus – Anci ary

e quip me nt – Disturbance p o we r

CISPR 16-1-4:2 0 , Sp e cific to fo r radio disturb ance and immuniy mea urin ap p aratus and

m e th ds – Part 1-4: Radio disturbance and immuniy mea urin ap p aratus – Anci ary

e quip me nt – Radiate d disturbance s

3

Amen ment 1 (2 0 )

Amen ment 2 (2 0 )

CISPR 16-2-2:2 0 , Sp e cific to fo r radio disturbance and immuniy me asurin ap p aratus and

me th ds – Part 2-2: Me tho ds of me asure me t o f disturb ance s and immuniy – Me asure me nt o f

disturb ance p o we r

4

Amen ment 1 (2 0 )

Amen ment 2 (2 0 )

CISPR 16-4-2:2 1 , Sp ecific to n fo r radio disturbance and immuniy mea urin ap p aratus and

me tho ds – Part 4-2: Unce rtainte s, statstc and lmi mo de lln – Me asure me t instrume tato n

unce rtainty

CISPR 2 :2 0 , Info rmato n te ch o lo gy e quip me t – Radio disturb ance chara teristc – Limis

and me tho ds o f mea ure me nt

IEC 6 0 0-161:19 0, Inte rnato nal Ele ctrote ch ic l Vo cabulary (IEV) – Chap ter 161:

Ele ctromag etc co mp atb il y

Amen ment 1 (19 7)

Amen ment 2 (19 8)

IEC 6 7 8-2:2 0 , Cable d distributio n syste ms fo r te le visio n and sound sig als – Part 2:

Ele ctro mag e tic co mp atbil y for e quip me nt (only avai a le in En l s )

ITU-R BT 4 1-1, No me nclature anddes rip tio o fco lour bar sig als

3 Terms, definitions a d abbreviations

s un bro dc st re eiv rs

a plan es inten ed for the rece tion of sou d bro d ast an simiar services for ter estrial,

ca le an satel te tran mis ion, regardles whether the input sig als are digital or analog

3.1.2

tele ision re eiv rs

a plan es inten ed for the rece tion of television bro d ast an simiar services for ter estrial,

ca le an satel te tran mis ion , regardles whether the input sig als are digital or analog

3.1.3

a s ciate e uipme t

eq ipment either inten ed to b con ected directly to sou d or television bro d ast receivers,

or to generate or re rod ce au io or vis al information

NOT 1 Tu ers ma b pro id d with a bro d a t s tel te-re eivin sta e a d with d mo ulators, d c d rs,

d multiple ers, D/A c n erters, e c d rs (e.g NT C, PAL or S C Me c d rs), etc

NOT 2 Fre u n y c n erters ma b pro id d with a bro d a t s tel te-re eivin sta e a d with d vic s whic

c n ert th sig als to oth r fre u n y b n s

NOT 3 Re eiv rs, tu ers, or fre u n y c n erters ma b tu e ble or ma o ly b a le to re eiv a fix d

fre u n y

3.1.4

PC tuner c rd

sou d bro d ast receiver card an television bro d ast receiver card , either to b in erted in

p rsonal computers or p rmanently integrated therein

3.1.5

outdoor u it of dire t to home s tel ite re eiving s stems for in ividual re eptio

u it con istin of the anten a, the fe din network an the low-noise ampl fier with its

as ociated down-con erter The intermediate freq en y ampl fier an the demod lator are not

in lu ed

3.1.6

multifunction e uipme t

a plan es in whic two or more fu ction are provided in the same u it, for in tan e television

rece tion, radio rece tion, digital cloc , ta e-recorder or dis player, etc

3.1.7

a dio/vide pla er inte rate within a tele ision re eiv r

s bs stem inten ed for playb c of au io an /or vis al information from external, in erted or

at ac ed media, whic has b en combined with a television receiver to form an integrated

ITU-R International Telecommu ication Union – Radio

LW, MW an SW L n -, Medium- an Short Waves

For RF disturb n es the level s al not ex e d the lmits sp cified in 4.2 to 4.7 when me s red

u in the method given in Clau e 5 Where there is freq en y d pl cation at the b u dary of

two ran es, the lower l mit s al a ply For eq ipment in large-s ale prod ction, it is req ired

that, with 8 % confiden e, at le st 8 % of prod ction comples with the lmits (se Clau e 6)

Multifu ction eq ipment whic is s bjected simultane u ly to dif erent clau es of this stan ard

an /or other stan ard s al b tested with e c fu ction o erated in isolation, if this can

b ac ieved without modifyin the eq ipment internaly The eq ipment th s tested s al b

de med to have compl ed with the req irements of al clau es/stan ard when e c fu ction

has satisfied the req irements of the relevant clau e/stan ard

For eq ipment for whic it is not practical to test with e c fu ction o erated in isolation, or

where the isolation of a p rtic lar fu ction would res lt in the eq ipment b in u a le to fulfi

its primary fu ction, the eq ipment s al b de med to have compl ed if it me ts the provision

of the relevant clau e/stan ard with the neces ary fu ction o erative

An integrated au io/vide player of a television receiver is de med to comply with the emis ion

req irements when it me ts the provision of the relevant clau es for television receivers with

the au io/vide player fu ction in o eration

4.2 Disturba c v lta e at the main terminals

De re sin ln arly with th lo arithm of th fre u n y

NOT 1 If th lmits for th a era e d te tor are met wh n u in th q a i-p a d te tor, th n th

lmits for th me s reme ts with th a era e d te tor are c n id re to b met

NOT 2 Th hig er v lu me s re with a d with ut th o ter c n u tor s re n of th a te n termin l c n e te

to e rth is c n id re

NOT 3 Tele isio re eiv rs with telete t fa i tie s o ld b te te in telete t mo e with telete t picture

4.3 Disturba c v lta e at the a te na terminals

Me s rements of the anten a terminal voltage s al b made in ac ordan e with 5.4

The lmit values for receivers with nominal imp dan e other than 7 Ω are calc lated ac ordin

to the fol owin formula:

L

Z

= L

7+ 10 log (Z/7 ) dB(µV)

Table 2 – Limits of disturba c v lta e at th a te na terminals

For c r D B re eiv r th s me lmits a ply

NOT For AM bro d a t re eiv rs for LW, MW a d SW, n lmits a ply

4.4 Wa te sig al a d disturba c v lta e at the RF output of e uipme t with

inc rporate or with a d-on RF vide mo ulator

Me s rements of the wanted sig al an disturb n e voltage at the RF output terminals of

eq ipment with in orp rated or with ad -on RF vide mod lator (e.g of vide recorders an

decoders) s al b made in ac ordan e with 5.5 If the nominal imp dan e of the RF output is

+AMD1:2 15 CSV  IEC 2 15

Table 3 – Limits of the wa te sig al a d disturba c v lta e at RF

o tput termin ls of e uipme t with RF vide mod lator

Th RMS-a era e lmits c n b a ple a a altern tiv to q a i-p a lmits in th e tirefre u n y ra g

4.5 Disturba c power

In re sin ln arly with th fre u n y

NOT If th lmits for th a era e d te tor are met wh n u in th q a i-p a d te tor, th n th lmits for th

me s reme ts with th a era e d te tor are c n id re to b met

4.6 Ra iate disturba c s

Me s rements of the disturb n e field d e to the local os i ator at its fu damental an

harmonic freq en ies an d e to al other sources s al b made in ac ordan e with 5.7

Table 5 – Limits of ra iate disturba c s at 3 m dista c

Th RMS-a era e lmits c n b a ple a a altern tiv to q a i-p a lmits

c It is alowe to me s re at 10 m dista c u in 3 m lmits min s 10 dB

d Th ma imum siz of th EUT s al b within th te t v lume d fin d d rin NSA te t site v ld tio

e Th lmit for oth r disturb n e a ple als for fu d me tal a d h rmo ic disturb n e from D B re eiv r

o eratin in b n I

NOT For c r ra iore eiv rs a d for LW, MW a d SW AM bro d a t re eiv rs, n ra iatio lmits a ply

NOT No lmits for ra iate disturb n e are d fin d in th fre u n y ra g 15 kHz to 3 MHz Guid n e to

me s re th ma n tic field c mp n nt c n b fo n in IEC PAS 6 8 5

4.7 Ra iate power

Me s rement of the radiated p wer d e to the local os i ator at its fu damental an harmonic

freq en ies an d e to al other sources s al b made in ac ordan e with 5.8

Table 6 – Limits of ra iate power of tun r units of dire t to home s tel te re eiv rs

Th dire t me s reme t is c rie o t a c rdin to 5.9 Wh n th refle tor of th p ra olc a te n c n ot b

remo e , th in ire t me s reme t a c rdin to 5.8 is c rie o t In th t c s , th a te n g in s al b ta e

This clau e de ls with stan ardized me s rement proced res an me s rin eq ipment

Deviation from this stan ard are al owed (e.g the u e of bro d-b n anten as, the

dimen ion of the s re ned ro m) provided that the me s rement res lts are comp ra le to

those res ltin from the stan ardized method an the deviation are noted in the test re ort

The output terminals of au io ampl fiers s al b terminated with a resistive lo d eq al to the

rated lo d imp dan e In case the rated lo d imp dan e has a certain ran e, a value of the

rated lo d for whic the eq ipment u der test at ain maximum p wer s al b u ed

The level of the au io output sig al s al b adju ted by the volume control to b 1/8 of the

rated output p wer for e c output The setin of the other controls s al b in mid le or

neutral p sition

An infrared remote control is con idered as a p rt of the main u it an tested together Remote

controls marketed se arately are only tested on radiated disturb n es (Ta le 5)

In case of controvers , the proced re as formulated in this stan ard s al take preceden e

5.2 Te t sig als

The stan ard test sig al for television receivers an for other eq ipment with vide sig al

inputoutput an /or an RF mod lator is a stan ard television colour b r sig al ac ordin to

ITU-R BT 4 1-1 (se Fig re 1) The mod lation of the vide an the au io sig als on the RF

car ier s al b ac ordin to the s stem for whic the eq ipment is inten ed

In the case of television receivers, the wanted sig al s al b a vision car ier mod lated by a

complete vide waveform in lu in a colour burst together with an u mod lated sou d car ier

of the cor ect relative ampltu e an freq en y

The teletext picture s al prefera ly b the one s own in Fig re 2, con istin of rows of

n mb rs completely fi in the s re n If this picture is not avaia le, me s rement s al b

done with the main in ex p ge of the national teletext bro d ast service In the later case the

als c n b u e

The stan ard test sig als for radio receivers are:

a) Ban I an RF sig al freq en y mod lated with a mono honic sig al at 1 kHz with 3 ,5 kHz

deviation;

b) LW/MW/SW: an RF sig al ampltu e mod lated with a sig al at 1 kHz with 5 %

mod lation

The stan ard test sig als for as ociated eq ipment are:

a) au io amplfiers an infrared he dphones: a sin soidal sig al at 1 kHz;

b) as ociated au io eq ipment e.g au io ta e recorders, record players, CD players: a ta e

or dis recorded 1 kHz au io sig al with a stan ard sou d level sp cified by the

man facturer of the eq ipment u der test;

c) as ociated vide eq ipment, e.g vide ta e players, camcorders, laser dis players: a ta e

or dis recorded stan ard television colour b r sig al with 1 kHz au io sig al, with a

stan ard sou d level sp cified by the man facturer of the eq ipment u der test;

d) electronic organ : a sig al derived from de res in the up er C note (a proximately

5 3 Hz);

e) infrared remote controls: a p rmanent tran mis ion of a typical control fu ction

For eq ipment for whic the wanted sig als are not explcitly des rib d in this stan ard, the

nominal sig als as sp cified by the man facturer s al b a pl ed d rin the tests (This is e.g

the case for bro d ast receivers for digital sig als, decoders, etc.) The man facturer s al

sp cify in his tec nical re ort whic input sig al was a pl ed d rin the tests

An infrared remote control is con idered as a p rt of the main u it an tested together Remote

controls marketed se arately are only tested on radiated disturb n es (Ta le 5)

5.3 Disturba c v lta e at the main terminals in the fre ue c

ra ge 15 kHz to 3 MHz

The me s red voltage in lu es nar ow-b n interferen e from the time-b se, vide circ its

an bro d-b n interferen e s c as that prod ced by semicon u tor rectifiers

An artificial main V-network is req ired to provide defined imp dan es at hig freq en ies

b twe n the main terminals of the eq ipment u der test an referen e e rth The network

also provides a s ita le fiter to isolate the eq ipment u der test circ it from u wanted RF

voltages that may b present on the s p ly main

An artificial main network ac ordin to CISPR 16-1-2 s al b u ed, whic is s ita le for

me s rin the disturb n e voltage b twe n e c main terminal of the eq ipment u der test

an the referen e e rth in the freq en y ran e 0,15 MHz to 3 MHz (se also Fig res 3 an 4)

Disturb n e voltage me s rements s ould b car ied out in a s re ned ro m as de icted in

Fig res 5 an 6

NOT Flo r-sta din e uipme t s o ld b pla e dire tly o th flo r If th c bin t of th e uipme t u d r te t

is of c n u tin material a d n t pro id d with in ulatin le s or wh els, th p ints of c nta t s o ld b s p rate

from th metal c gro n -pla e b in ulatin material of u to 12 mm thic n s

5.3.2 Tele isio re eiv rs

The television receiver s al b tu ed to a stan ard test sig al as defined in 5.2 A smal pic

-+AMD1:2 15 CSV  IEC 2 15

is provided with a bui t in anten a, this one s al b u ed ( he pic -up anten a s al b

dis on ected)

In case of monitor TV, a vide sig al generator prod cin the stan ard television sig al as

defined in 5.2 s al b con ected to the vide input con ector of the monitor via an isolation

tran former

NOT 1 Th is latio ma b pro id d b a is latio tra sformer with c mmo imp d n e to e rth of 7 Ω for

th fre u n y ra g 0,15 MHz to 3 MHz Altern tiv ly, th vid o sig al c uld b a ple in s rie with toroid l RF

c o e (o e in e c c n u tor) of 6 µH imp d n e, c n e te b v ry s ort le d to th vid o in ut c n e tor

The input sig al s al b s f iciently stron to give a noise- re picture

The controls of the eq ipment u der test for contrast, brig tnes an colour saturation, s al b

set to prod ce a normal picture

This is o tained with the folowin luminan e values:

– blac p rt of the test p tern: 2 c /m

b state to eth r with th re ults

Television receivers with teletext faci ties s al b tested in teletext mode with a teletext

picture

5.3.3 So nd re eiv rs

The stan ard test sig als for sou d receivers s al b ac ordin to 5.2

For AM sou d receivers provided with fer ite anten as or rod anten as, the radiatin anten a

of Fig res 5 an 6 s al b re laced by a radiatin lo p or radiatin rod anten a

The volume control of the receiver u der test s al b adju ted to b 1/8 of the rated au io

output p wer The other controls s al b in their mid le or neutral o eratin p sition The

output terminals s al b terminated with resistive lo d eq al to the rated lo d imp dan es

In case the rated lo d imp dan e has a certain ran e, a value of the rated lo d for whic the

eq ipment u der test atain maximum p wer s al b u ed

Sou d AM/FM receivers s al b tested in FM o eratin mode

5.3.4 As o iate e uipme t

The stan ard test sig als for as ociated eq ipment are defined in 5.2

As ociated eq ipment with RF input can b me s red as a television or sou d receiver, as

a pro riate

Mod lar u its whic p rform a p rt of the fu ction u iq e to a sou d or television receiver

(lke tu ers, freq en y con erters, RF ampl fiers, RF eq al zers, monitors, etc.) are me s red

simi arly to sou d or television receivers resp ctively

Remote controls of receivers an as ociated eq ipment are con idered to b p rt of the main

5.3.5 Audio ampl fiers

An au io freq en y sig al generator s al b con ected to an input terminal of the eq ipment

u der test via an isolation tran former

NOT Th is latio ma b pro id d b a is latio tra sformer with a c mmo mo e imp d n e to e rth of at

le st 5 0 Ω for th fre u n y ra g 0,15 MHz to 3 MHz Altern tiv ly th a dio sig al c uld b a ple in s rie

with toroid l RF c o e (o e in e c c n u tor) of 6 µH in u ta c , c n e te b v ry s ort le d to th a dio

in ut c n e tors

The amplfier output terminals s al b terminated with a resistive lo d eq al to the rated lo d

imp dan e

In case the rated lo d imp dan e has a certain ran e, a value of the rated lo d for whic the

eq ipment u der test atain maximum p wer s al b u ed

The level of the au io output sig al s al b adju ted by the volume control to b 1/8 of the

rated output p wer for e c output

The set in of the other controls s al b in mid le or neutral p sition

5.3.6 Me s reme t of the disturba c v lta e at the mains terminals

The receiver or as ociated eq ipment u der me s rement an the artificial main network are

disp sed as s own in Fig res 5 an 6 The artificial main network s al b as in icated

in 5.3.1 Me s rements s al b car ied out u in a me s rin receiver havin a q asi-p ak

detector an an average detector, or as an alternative a RMS-average detector in ac ordan e

with CISPR 16-1-1, resp ctively

The main le d s al b ar an ed to folow the s ortest p s ible p th b twe n the receiver an

artificial main network on the grou d The main le d in ex es of 0,8 m se aratin the

eq ipment u der test from the artificial main network s al b folded b c an forth p ral el to

the le d so as to form a bu dle with a len th of 0,3 m to 0,4 m

Earthin of the eq ipment u der test if provided with a safety e rth con ection, s al b made

to the e rth terminal provided on the artificial main network with the s ortest p s ible le d

If the eq ipment u der test has a co xial RF input con ector, tests s al b p rformed with an

without an e rth con ection made to the outer con u tor s re n of the co xial RF input

con ector When these tests are b in car ied out, no other e rth con ection s al b made

to an ad itional e rth terminal whatever

If the eq ipment u der test has no co xial RF input con ector an if it has an e rth terminal,

tests s al b p rformed with this terminal e rthed

5.4 Me s reme t of disturba c v lta e at th a te n terminals of a re eiv r a d

a s ciate e uipme t with a RF input in th fre ue c ra g 3 MHz to 2,15 GHz

When me s rements are made at the anten a terminal of the eq ipment u der test, an

au i ary sig al generator s al b u ed to fe d the receiver input with an RF sig al at the

receiver or as ociated eq ipment tu in freq en y (se 5.2)

Me s rements s al b car ied out u in a me s rin receiver havin a q asi-p ak detector or

+AMD1:2 15 CSV  IEC 2 15

The output level of the au i ary sig al generator s al b set to give at the anten a input

terminal of the receiver the value of 6 dB(µV) for freq en y mod lation receivers an

7 dB(µV) for television receivers, on 7 Ω imp dan e

In the case of freq en y-mod lation receivers, the au i ary sig al s al b an u mod lated

car ier

5.4.2 Me s reme t on re eiv rs or a s ciate e uipme t with c a ial

a te na c n e tion

The anten a terminals of the receiver or as ociated eq ipment an the au i ary sig al

generator are con ected to the me s rin receiver by me n of co xial ca les an a resistive

combinin network havin a minimum aten ation of 6 dB (se Fig re 7)

The imp dan e as se n from the receiver or as ociated eq ipment s al b eq al to the

nominal anten a input imp dan e for whic the receiver has b en desig ed

The eq ipment u der test s al b tu ed to the wanted sig al

The me s rin receiver is tu ed to the relevant radiated freq en y an the disturb n e level is

me s red takin into ac ou t the aten ation b twe n the receiver anten a terminal an the

me s rin receiver input

NOT 1 Ra iofre u n y c re ts flowin from th c a sis of th re eiv r to th o ter s rfa e of th s re nin of

th c a ial c ble s o ld b pre e te from p n tratin into th c a ial s stem a d th s c u in ero e u

me s rin re ults, for e ample b me n of ferite tu e

NOT 2 Ate tio s o ld b giv n to p s ible o erlo din of th in ut sta e of th me s rin re eiv r d e to th

o tp t sig al of th a xi ary g n rator

5.4.3 Me s reme t on re eiv rs or a s ciate e uipme t with bala c d

a te na c n e tors

The method of me s rement is simi ar to that des rib d in 5.4.2 The me s rin set up is

given in Fig re 8

A matc in network s al , if neces ary, b in erted b twe n the receiver or as ociated eq i

p-ment an the selective voltmeter at a distan e of 0,5 m from the receiver, an con ected to

the receiver by me n of an u s re ned b lan ed fe der, to give cor ect matc in b twe n the

receiver an the b lan ed- o-u b lan ed tran former, whic aten ates the as mmetric

c r ents If the as mmetric c r ents are troublesome, as can general y b verified by reversin

the con ection of the b lan ed fe der at the anten a terminals of the receiver, they s al b

s p res ed by s ita le devices, e.g fer ite tub s or sto fi ters

NOT No d tais of th matc in n twork a d of th b la c d-o-u b la c d tra sformer are giv n, b c u e

difere t te h iq e are p s ible, for e ample a tra smis io ln wo n o a ma n tic c re or ferite s p re sio

rin s

5.4.4 Pre e tatio of the re ults

The res lts s al b expres ed in terms of the disturb n e voltage in dB(µV) The sp cified

5.5 Me s reme t of the wa te sig al a d disturba c v lta e at the RF output

termin ls of a s ciate e uipme t with a RF vid o modulator, in th fre ue c ra g

3 MHz to 2,15 GHz

If eq ipment with RF output (e.g vide recorders, camcorders, decoders) is inten ed to b

con ected to the anten a terminals of a television receiver, ad itional me s rements of the

wanted sig al level an disturb n e voltage at its RF output terminals s al b p rformed The

re son is that a to hig level of the RF output sig al or its harmonic can b radiated from the

combination cau in interferen e in the neig b urho d

5.5.2 Metho of me s reme t

The RF output of the eq ipment u der test is con ected to the input of the me s rin receiver

by me n of a co xial ca le an a matc in network (if neces ary) as s own in Fig re 9 The

c aracteristic imp dan e of the ca le s al b eq al to the nominal output imp dan e of the

eq ipment u der test

Me s rements s al b car ied out u in a me s rin receiver havin a q asi-p ak detector or

a RMS-average detector in ac ordan e with CISPR 16-1-1, resp ctively

The eq ipment u der test s al prod ce an RF car ier mod lated by a vertical colour b r vide

sig al (se Fig re 1)

The RF output level can b o tained by ad in the in ertion los of the matc in network to the

in ication of the me s rin receiver ( u ed on the vide car ier freq en y an its harmonic ) or

of a sp ctrum analy er

5.6 Me s reme t of disturba c power of a s ciate e uipme t (vide re orders

e clude ) in the fre ue c ra ge 3 MHz to 1 GHz

It is general y con idered that for freq en ies a ove 3 MHz, the disturbin energ prod ced

by an a pl an e is pro agated by radiation to the disturb d receiver

Exp rien e has s own that the disturbin energ is mostly radiated by the p rtion of the

main le d an other con ected le d ne r the a plan e It is therefore agre d to define the

disturbin level of an a pl an e as the p wer it could s p ly to its main le d an other

con ected le d

This p wer is ne rly eq al to that s p l ed by the a pl an e to a s ita le a sorbin clamp

placed arou d an of these le d at the p sition where the a sorb d p wer is at its maximum

5.6.2 Metho of me s reme t

The des rib d method is a pl ca le for me s rement of disturb n e p wer, expres ed in

terms of avaia le p wer, prod ced at the terminals of the as ociated eq ipment in the

ran e 3 MHz to 1 GHz

The stan ard test sig al an o eratin con ition of the as ociated eq ipment u der test are

given in 5.2 The method of me s rement an the me s rin set up s al b in ac ordan e

with CISPR 16-2-2 The a sorbin clamp an the a sorbin clamp test site s al b in

ac ordan e with CISPR 16-1-3

Me s rements s al b car ied out u in a me s rin receiver havin a q asi-p ak detector

an an average detector, or as an alternative a RMS-average detector in ac ordan e with

+AMD1:2 15 CSV  IEC 2 15

5.6.3 Me s rin proc dure

The as ociated eq ipment u der test is placed on a non-metal c ta le of 0,8 m of heig t a ove

the flo r an at le st 0,8 m from other metal c o jects an from an p rson The le d to b

me s red s al b stretc ed in a straig t horizontal lne for a len th s ficient to ac ommodate

the a sorbin clamp an to p rmit the neces ary adju tment of its p sition for tu in The

a sorbin clamp is placed arou d the le d to b me s red, with its c r ent tran former

toward the eq ipment u der test, so as to me s re a q antity pro ortional to the disturb n e

p wer on the le d (se Fig re 10)

An other le d than that to b me s red s al either b dis on ected, if mec anical y an

fu ctionaly p s ible, or fited with fer ite rin s to aten ate RF c r ents whic may afect the

me s rement res lts Su h a le d s al b stretc ed away from the con ected u it in a

direction p rp n ic lar to the direction of the le d to b me s red

Al con ectors not u ed s al b lef u terminated Al con ectors havin a con ected le d s al

b terminated in a man er re resentative of u e If the le d are s re ned an normal y

terminated in a s re ned u it, then the termination s al b s re ned

The a sorbin clamp is a pl ed s c es ively to al le d , u s re ned or s re ned, whic may

b con ected to the in ivid al u its of the eq ipment u der test (e.g the le d to the main or

to the p wer s p ly, sig al le d , control le d , etc.)

On intercon ectin le d b twe n u its, b lon in to the same eq ipment u der test, two

me s rements s al b made, the c r ent tran former of the a sorbin clamp facin the first

u it, at one en of the le d, then facin the secon u it at the other en of the same le d

At e c test freq en y, the a sorbin clamp s al b moved alon the le d u ti the maximum

value is fou d b twe n a p sition adjacent to the eq ipment u der test an a distan e of a out

a half wavelen th from it If neces ary, the con ected le d s al b exten ed to have a len th

of a half wavelen th at 3 MHz (i.e 5 m) plu twice the len th of the a sorbin clamp

However, on an intercon ectin le d of original len th s orter than a half wavelen th at the

lower freq en ies, whic at its en is con ected to a u it havin no other external le d, the

movement of the a sorbin clamp from this same u it is further restricted to a distan e eq al

to the original len th of the le d

Testin is only req ired for intercon ectin le d whic , ac ordin to the man facturers

sp cification , are lon er than the a sorbin clamp

NOT An initial me s reme t c uld b ma e with th a s rbin clamp in a fix d p sitio to fin fre u n ie

wh re th disturb n e mig t b p rtic larly stro g

5.6.4 Pre e tatio of the re ults

The me s red p wer is expres ed in dB(pW) an derived from the maximum in icated value

an the cal bration c rve of the a sorbin clamp

The disturb n e p wer level is given by the hig est of the maximum values noted at e c

freq en y of me s rement on the main le d or other con ected le d

5.7 Me s reme t of ra iation in the fre u nc ra ge 3 MHz to 1 GHz at 3 m dista c

The method des rib d here is a pl ca le for the me s rement of radiation, expres ed in terms

of electric field stren th, from freq en y mod lation receivers, television receivers, vide

recorders, etc (se Ta le 5) This method of me s rement s ould b u ed outdo rs or in o rs

Me s rements with the method here des rib d may also b made in a large in o r ro m with

anec oic tre tment or on outdo r sites protected from the we ther by s ita le non-metal c

coverin s, for example radomes or pres urized plastic domes, provided these sites comply

with 5.7.2

Outdo r we ther-protected me s rin sites s ould not b u ed d rin rain or s ow u ti it has

b en verified by a site at en ation test that the radiofreq en y me s rin con ition do not

c an e a precia ly d rin s c we ther con ition

NOT Th efe t of atmo p eric p lutio o th ra iofre u n y c ara teristic of a site c v re b a pla tic

d me s o ld b a c rtain d b ate u tio te ts re e te at a pro riate interv ls

Me s rements may alternatively b car ied out u in the me s rement an test site val dation

method as des rib d in CISPR 2 or CISPR 16-1-4

Me s rements s al b car ied out u in a me s rin receiver havin a q asi-p ak detector or

a RMS-average detector in ac ordan e with CISPR 16-1-1, resp ctively

5.7.2 Me s rin site re uireme ts

The me s rin site s al b flat an fre of reflectin o jects No extrane u metal c o jects,

havin an dimen ion in ex es of 5 mm s al b in the vicinity of the receiver or as ociated

eq ipment u der test or of the field-stren th meter a rial The receiver an the field-stren th

meter anten a s al b located over a metal c grou d s re n havin the dimen ion

6 m × 9 m, as s own in Fig re 1

Where the grou d s re n deviates from an ide l con u tin plane or where the me s rin site

is en losed, it s ould b esta ls ed that sig ificant variation of the res lts are not introd ced

The horizontal distan e b twe n the field-stren th meter anten a an the dip le con ected

to the generator or the centre of the receiver or as ociated eq ipment s al b 3 m (se

Fig res 12 an 14)

For the freq en y ran e 8 MHz to 1 GHz, the s ita i ty of the site an of the me s rin

eq ipment s al b c ec ed by u in the ar an ement s own in Fig re 12 The receiver s al

b re laced by a stan ard sig al generator A tu ed horizontal tran mitin dip le s al b

con ected to this generator output by a wel -s re ned tran mis ion l ne cor ectly terminated

at b th en s The heig t of the tran mit in dip le s al b 4 m Startin at 4 m, the field

-stren th meter anten a s al b adju ted in heig t to me s re the first maximum that oc urs at

is the avaia le p wer at the tu ed receivin dip le terminals, in dB(pW)

NOT 1 Wh n th sig al g n rator, th field-stre gth meter a d th tra smis io ln s h v th s me imp d n e,

th site ate u tio c n b me s re a :

A =

V

c n e ie t re din V

r

o th field-stre gth meter) n te in th folowin me s reme ts, wh n:

are th ate u tio in dB at th me s rin fre u n y of th b lu a d a y matc in p d at th tra smitin

a d re eivin sid re p ctiv ly, in lu e in me s reme t a) a d e clu e in me s reme t b)

For a s tisfa tory site, th me s re ate u tio s al n t d viate b more th n ± dB from th th oretic l c rv

s own in Fig re 13

NOT 2 At hig s n itivity, erors ma re ult from mismatc at th in ut termin ls of th field-stre gth meter,

intern ly g n rate n is or e tra e u sig als Th ra iate p wer s o ld b s ficie tly hig to u e th fi

eld-stre gth meter o a s n itivity ra g for whic a eror in th re din d e n t e c e ±1,5 dB

5.7.3 Dispo ition of the e uipme t u der te t

The eq ipment u der test s al b placed on a s p ort of non-metal c material, the heig t of

whic s al b 0,8 m a ove the referen e grou d plane, as s own in Fig re 14 Where

practical, the re r of the eq ipment u der test s ould b flu h with the re r of the ta le.The

eq ipment u der test s al b rotata le in a horizontal plane

The EUT s al b ar an ed in the most comp ct practical ar an ement within the test volume

The central p int of the ar an ement s al b p sitioned at the centre of the turnta le The

me s rement distan e is the s ortest horizontal distan e b twe n an imaginary circ lar

p riphery ju t en omp s in this ar an ement, an the cal bration p int of the anten a Se

Fig re 14

The centre of the me s rin anten a an the centre of the receiver u der test s al b in the

same vertical plane

The main ca le s al b placed in the same plane, as s own in Fig re 14 vertical y routed to

the main s p ly soc et, with the ex es len th folded b c an forth p ral el to the le d so as

to form a horizontal bu dle with a len th b twe n 0,3 m an 0,4 m at the main -plu en

If the len th of the main p rt input ca le is les than 0,8 m (e.g p wer s p l es integrated in

the main plu ), an exten ion ca le s al b u ed s c that the main plu an external p wer

s p ly u it if a plca le, is placed on the me s rement ta le The exten ion ca le s al have

simiar c aracteristic to the main ca le (in lu in the n mb r of con u tors an the

presen e of grou d con ection) The exten ion ca le s al b tre ted as p rt of the main

ca le

Adeq ate fi terin s al b in orp rated in the main s p ly, so that the ac urac of the

me s rement is not af ected

A s ita le test sig al (se 5.2) is s p led by a sig al generator placed at the grou d plane

u derne th the receiver u der test, an con ected to it via the s ortest p s ible vertical ca le

The sig al generator s al b coupled to the receiver u der test by a co xial ca le of go d

q alty The s re n of the ca le s al b e rthed at grou d level (se Fig re 14)

For receivers with a bui t in anten a an no external anten a terminal, the buit in anten a

s al b u ed an the test sig al (se 5.2) o tained from a vertical tran mit in anten a

con ected to the sig al generator This anten a s al not b closer than 3 m from the

eq ipment u der test anten a an at le st 6 m from the field-stren th meter anten a,

me s red as horizontal distan e

Teles o ic anten as s al b puled out to their maximum len th an fixed in a vertical p si

-tion if there is a sin le rod, an in a p sition 4 ° from the vertical, formin an a proximate V,

if there are two rod

NOT Th ra iatio ma b me s re with ut a te t sig al a ple to th a te n in ut of th re eiv r u d r te t

In this c s , th a te n termin ls of th re eiv r s o ld b termin te with a n n-in u tiv re istor of a v lu

In the case of PC tu er card , se arately marketed for in orp ration in diverse host u its (e.g

PCs) the card s al b tested in at le st one a pro riate re resentative host u it of the c oice

of the man facturer

Me s rements are car ied out with the tu er card in erted in a p rsonal computer, switc ed on

an the anten a input con ector terminated with a non-radiatin d mmy lo d

5.7.4 Dispo ition of the field-stre gth meter

5.7.4.1 Ante na of th field-stre gth meter

This anten a s al b a dip le rotata le in a vertical plane p rp n ic lar to the axis of the

me s rin site (se Fig re 1 ) an the heig t of the centre s al b ca a le of variation over a

ran e from 1 m to 4 m (se Fig re 14)

Betwe n 8 MHz an 1 GHz, the field-stren th me s rement s al b made with a dip le λ/2

lon at the me s rin freq en y

Betwe n 3 MHz an 8 MHz, the field-stren th me s rement s al b made with a dip le havin

a con tant len th cor esp n in to λ/2 at 8 MHz Over this ran e of 3 MHz to 8 MHz, the

field-stren th meter s al b cal brated with this fixed dip le by me n of a referen e field, the

cal bration b in made at the heig t a ove e rth of 4 m

5.7.4.2 Fe d r

A s ita le fe der s al b mou ted as in icated in Fig re 14 with a distan e b twe n the dip le

an the vertical p rt of the fe der of more than 1 m

5.7.4.3 Field-stre gth meter

A s ita le field-stren th meter s al b placed at a con enient heig t

Startin with the front of the receiver u der test facin the me s rin anten a, the me s rin

anten a is adju ted for horizontal p larization me s rement an its heig t varied b twe n 1 m

an 4 m u ti the maximum re din is o tained

The receiver u der test is then rotated a out its centre u ti the maximum meter re din is

o tained, af er whic the me s rin anten a heig t is again varied b twe n 1 m an 4 m an

the maximum re din noted

The proced re is re e ted for vertical p larization of the me s rin anten a, the heig t b in

varied from 2 m to 4 m in this case

The hig est value fou d, fol owin this proced re, is defined as the radiation fig re of the

receiver

If at certain freq en ies the ambient sig al field stren th is hig at the p sition of the receivin

anten a, one of the folowin method may b u ed to s ow compl an e of the eq ipment

u der test

a) For smal freq en y b n s with hig ambient sig als, the disturb n e value may b in

ter-p lated from the adjacent values The interp lated value s al le on the c rve des ribin a

contin ou fu ction of the disturb n e values adjacent to the ambient noise

+AMD1:2 15 CSV  IEC 2 15

5.8 Me s reme t of ra iation in the fre u nc ra ge 1 GHz to 18 GHz

The eq ipment u der test s al b placed on a turnta le of non-metal c material, the heig t of

whic s al b 1 m a ove the grou d

Eq ipment whic ne d an input sig al s al b con ected to a s ita le sig al generator

throu h a "wel-s re ned" ca le

NOT A c ble c n b c n id re "wel-s re n d" if its ra iatio le el wh n termin te with a matc e lo d, is at

le st 10 dB b low th e p cte ra iatio le el of th e uipme t u d r te t, th c ble a d th e uipme t b in

s p le with th s me in ut sig al le el

The u u ed output terminals, if an , of the eq ipment u der test s al b terminated with their

nominal imp dan e by me n of non-radiatin lo d

The main le d, if an , s al b placed vertical y an con ected to the main outlet throu h a

s ita le main fi ter An ex es len th of the main le d s al b made into a ne t vertical

bu dle with a len th b twe n 0,3 m an 0,4 m

The main le d an the sig al generator co xial ca le s al b provided with s ita le

a sorbin devices (e.g fer ite rin s), placed close to the eq ipment u der test, to avoid

me s rement er ors

The me s rements s al b made with a directive anten a of smal a erture ca a le of makin

se arate me s rements of the vertical an horizontal comp nents of the radiated field The

heig t a ove the grou d of the centre lne of the anten a s al b the same as the heig t of the

radiation centre of the eq ipment u der test

In order to avoid the influen e of the grou d reflection on the res lts, it is recommen ed to u e

a s ita le horn anten a In that case no metal c grou d plane is ne ded To fulfi the

"Frau hofer con ition " the me s rin distan e d s al b :

d ≥ 2 b2

/λ

where

b is the wider dimen ion of the horn a erture;

λ is the wavelen th cor esp n in to the test freq en y

For large ratios of me s rin distan e d to me s rin heig t (h = 1 m), the grou d plane may

have to b covered with a non-reflectin material to b a le to fulfi the site valdation criterion

stated in 5.8.2

The me s rin receiver u ed in this freq en y ran e u ualy con ists of a sp ctrum analy er

In the case that the radiation level is low, a low-noise pre mplfier may b ne ded

5.8.2 Te t site v l d tion

The val dation of the site s al b determined as fol ows A tran mitin anten a s al b

mou ted at the p sition where it is inten ed that the a proximate radiation centre (u ual y the

volume centre) of the eq ipment u der test is to b placed The tran mitin anten a s al

have the same radiation pro erties as a half wave dip le The receivin anten a s al b

placed at the same p sition as that c osen for the actual me s rements The two anten as

s al b placed so that they have the same p larization whic s al b p rp n ic lar to an

imaginary lne b twe n them Tests s al b made in the horizontal an vertical p larization

The site s al b con idered s ita le for the purp se of me s rement at a test freq en y if the

in ication on the me s rin receiver c an es by no more than ±1,5 dB when the centre of the

tran mit in anten a is moved from 0 cm to 15 cm in an direction from its initial p sition

NOT For me s reme ts b twe n 1 GHz a d 4 GHz, eith r a h lf wa e dip le or a h rn a te n ma b u e a

a tra smitin a te n For me s reme ts a o e 4 GHz, a h rn a te n s o ld b u e Wh n a h rn a te n is

u e ,its g in a o e th h lf wa e dip le s o ldb ta e into a c u t

5.8.3 Me s rin proc dure

Me s rements s al b made by the s bstitution method with the anten a havin b th

horizontal an vertical p larization , an the turnta le with the eq ipment u der test s al b

rotated The hig est level of radiation me s red s al b noted at e c me s rin freq en y

The eq ipment u der test is then re laced by a tran mit in anten a s p l ed by a stan ard

generator an havin the same c aracteristic as the receivin anten a (half wave dip le or

horn anten a) Its centre s al b placed in the same initial p sition as that of the eq ipment

centre

For e c me s rin freq en y, the output level of the generator is adju ted in order to give the

same referen e in ication on the me s rin receiver The level of the avaia le p wer of the

generator, in re sed by the radiatin anten a gain a ove the half wave dip le, is taken as the

level of the radiated p wer of the eq ipment u der test at the con idered freq en y

It s al b as ertained that, when the eq ipment u der test is switc ed of , the level of

b c grou d noise is at le st 10 dB b low the relevant lmit, otherwise the re din may b

sig ificantly af ected

When a horn anten a is u ed in te d of a dip le anten a, the me s rement res lts s al b

expres ed in terms of ERP refer ed to a half wave dip le

5.8.4 Pre e tatio of the re ults

The radiation level of the eq ipment u der test s al b expres ed in terms of s bstituted

eq ivalent p wer in dB(pW)

5.9 Me s reme t of the loc l os i ator power at th input terminal of th outdo r unit

If a s ita le interface at the input of the outdo r u it (e.g R12 , C12 ) is avaia le, the local

os i ator p wer can b me s red directly by a p wer meter or sp ctrum analy er combined

with a cor esp n in ada ter as an alternative to the me s rement of the radiation Due

al owan e s al b made for the fe d los es b twe n the avaia le interface an the anten a

flan e

6 Interpretation of CISPR radio disturbanc l mits

6.1 Compl a c with this sta d rd

Complan e with this stan ard req ires a statement in the test re ort that sp cifies whic lmits

(p ak/q asi-p ak/average or RMS-average) the eq ipment satisfies On e the detector has b en

selected it s al b u ed for al phenomena For re- estin the eq ipment the detector stated in the

test re ort s al b u ed

6.2 Signific nc of a CISPR l mit

A CISPR lmit is a l mit whic is recommen ed to national authorities for in orp ration in

national stan ard , relevant legal reg lation an of icial sp cification It is also

+AMD1:2 15 CSV  IEC 2 15

The sig ifican e of the l mits for typ -a proved a pl an es s al b that on a statistical b sis,

at le st 8 % of the mas -prod ced a pl an es comply with the lmits with 8 % confiden e

level

Typ tests can b made:

a) on a sample of a plan es of the typ with statistical evaluation in ac ordan e with 6.3, or

b) for simplcity, on one item only

Subseq ent tests on items taken at ran om from the prod ction are neces ary from time to

time, esp cial y in the case of b) a ove

In the case of controvers in olvin the p s ible with rawal of a typ a proval, with rawal s al

b con idered only af er tests on an adeq ate sample in ac ordan e with a) a ove

6.3 Compl a c with l mits on a statistic l ba is

The test b sed on the non-central t-distribution, s ould b p rformed on a sample of not les

than five items of the typ , but if in ex e tional circ mstan es five items are not avaia le, then

11

xx

ns

k is the factor derived from ta les of the non-central t-distribution with 8 % confiden e that

8 % of the typ is b low the l mit; the value of k de en s on the sample size n an is

Should the test on the sample res lt in non-complan e with the req irements of 6.3, then a

secon sample may b tested an the res lts combined with those from the first sample an

compl an e c ec ed for the larger sample

NOT For g n ral informatio , s e CIS R16-4-3

CISPR 16-4-2 an re orted The me s rement in trumentation u certainty s al not b taken

into ac ou t in the determination of compl an e Refer to CISPR TR 16-4-3 for g idan e on the

Fig re 5 – Me s reme t of th ra iofre u nc disturba c v lta e

inje te into the mains (s e 5.3.1)

Fig re 6 – Me s reme t of th ra iofre u nc disturba c v lta e

Figure 10 – Circ it ar a geme t for the me s reme t of disturba c power of

a s ciate e uipme t (vide re orders e clude ) (s e 5.6.3)

Fig re 1 – Me s ring site (s e 5.7.2)

+AMD1:2 15 CSV  IEC 2 15

Figure 13 – The retic l site at e uatio c rv for the ra ge 8 MHz to 1 GHz

(s e 5.7.2)

Fig re 14 – Ope -field me s reme t at 3 m dista c (s e 5.7.3)

IE

This an ex gives ad itional information con ernin the method of me s rement of bro d ast

receivers for digital sig als

Receivers can b eq ip ed with telecom or data con ectors an may contain storage an

return c an el faci ties

For the me s rements at p rts related to non-bro d ast fu ction , for example, the Telecom

an LAN p rts, referen e is made to the relevant stan ard , for example, CISPR 2

Se Clau e 2

A.3 Terms a d definitions

For the purp ses of this an ex, the fol owin terms an definition a ply

A.3.1

digital s und re eiv rs

a plan es inten ed for the rece tion of sou d bro d ast, as ociated data an simi ar services

for digital ter estrial, ca le an satel te tran mis ion

A.3.2

digital tele ision re eiv rs

a plan es inten ed for the rece tion of television bro d ast, data an simi ar services for

digital ter estrial, ca le an satel te tran mis ion The receiver can b eq ip ed with a

display Receivers without a display are general y refer ed to as set to b xes

A.3.3

digital s und sig al

RF sig al mod lated with a digital data stre m containin sou d information Data con ernin

ad itional services an service provider de en ent a plcation may b in lu ed in the data

stre m

A.3.4

digital tele ision sig al

RF sig al mod lated with a digital data stre m containin vide an ac omp n in sou d in

for-mation Information con ernin the s p l ed ad itional services an service provider de en ent

a plcation , lke the Electronic Programme Guide, may b in lu ed in the data stre m

NOT An e B giv s informatio o sig als for tere trial c ble a d s tel te s stems

A.4 Limits of disturba ce

A.5 Me surement procedures

Se Clau e 5

A.5.2 Me s reme t of the disturba c v lta e at the mains terminals of digital

s tel ite re eiv rs

For digital satel te receivers an isolation tran former s al b u ed to s p ly the wanted sig al

in te d of the smal pic -up anten a sp cified in 5.3.2 (se Fig re A.1) The maximum

cros over ca acitan e of the tran former is 7,5 pF This le d to a minimum common-mode

imp dan e of the isolation tran former of 7 0 Ω at 3 MHz An example of an isolation

tran former an its p rforman e is given in Fig res A.2, A.3 an A.4

NOT This tra sformer c n als b u e for oth r ty e of re eiv rs, for e ample, for tere trial re eiv rs

A.5.3 Wa te sign ls

The level of a digital television or sou d sig al is expres ed in dB(µV) acros the nominal

imp dan e of 7 Ω; it relates to the sig al p wer of the sig al, whic is defined as the me n

p wer of the selected sig al as me s red with a thermal p wer sen or

Care s ould b taken to lmit the me s rement to the b n width of the sig al When u in a

sp ctrum analy er or calbrated receiver, it s ould integrate the sig al p wer within the nominal

b n width of the sig al

A.5.3.2 Digital s und sig al

The level of the digital sou d sig al is 5 dB(µV)

The ref eren e level of al sou d c an els s al b at f ul ran e − dB at 1 kHz

A.5.3.3 Digital tele isio signal

The level of the digital television sig als d rin the test s al b

– for ter estrial s stems: VHF 5 dB(µV), UHF 5 dB(µV),

– for ca le s stems: 6 dB(µV),

– for satel te s stems: 6 dB(µV)

The stan ard picture is a test p tern con istin of vertical colour b rs in ac ordan e with ITU

-R BT 4 1-1 Recommen ation with a smal movin element, coded at 6 Mbit s

The referen e level of al sou d c an els s al b at ful ran e − dB at 1 kHz

Se further An ex B

A.5.4 Re eiv rs for digital a d a alog e signals

Al me s rements s al b p rformed in the digital mode In case se arate tu ers are u ed for

digital an analog e rece tion, the me s rements of the emis ion at the local os i ator