IS 13986-2: Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band, Part 2: Electrical measurements on DBS tuner units

53 Pages·1994·3 MB·English

by  Bureau of Indian Standards

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timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 13986-2 (1994): Methods of measurement on receivers for
satellite broadcast transmissions in the 12 GHz band, Part
2: Electrical measurements on DBS tuner units [LITD 7:
Audio, Video and Multimedia Systems and Equipment]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

IS 13988 (Part 2) : 1994
IEC Pub 1079-2 : 1992

Indian Standard
M-ETHO~DS FO MEASUREMENT 4XC RECEIVERS
ROF ETILLETAS BROADCAST SNOISSIMSNART
IN THE 12 zHG BAND
PART 2 ELECTRICAL MEASUREMENTS ON DBS TUNER UNITS
UDC 621~396~62:621~396~946:621~3173

0 SIB 1994
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH RAFAZ MARG
NEW IHLED 200011

April 4991 Price Group 14
oidaR snoitacinummoC lanoitceS Committee, DTL 02
LANOITAN FOREWORD
sihT naidnI dradnatS hcihw si lacitnedi htiw CEI buP 9701 - 2 2991: sdohteM‘ fo tnemerusaem no sreviecer rof
etilletas tsacdaorb snoissimsnart ni eht 21 zHG dnab traP 2 : lacirtcelE tnemerusaem no SBD renut ,’tinu deussi
yb eht lanoitanretnI lacinhcetortcelE noissimmoC )CEI( saw detpoda yb eht uaeruB fo naidnI sdradnatS no eht
noitadnemmocer fo oidaR snoitacinummoC eettimmaCtanoitceS DTL( )02 dna lavorppa fo eht scinortcelE dna
noitacinummoceleT noisiviD .licnuoC
ehT txet fo eht CEI dradnats sah neeb devorpa sa elbatius rof noitacilbup sa naidnI dradnatS tuohtiw .snoitaived
niatreC snoitnevnoc ,era ,revewoh ton lacitnedi ot esoht desu ni naidnI .sdradnatS noitnettA si ylralucitrap nward
ot eht :gniwollof
a) Wherever eht sdrow lanoitanretnI‘ ’dradnatS raeppa gnirrefer ot siht ,dradnats yeht dluohs eb daer sa.
naidnI‘ .’dradnatS
b) Comma (,) sah neeb desu sa a lamiced marker .elihw ni naidnI eht.,sdradnatS tnerruc ecitcarp si ot esu
tniop-a (.) sa eht lamiced marker.
SSORC REFERENCES
nI eht detpoda ,dradnats ecnerefer sraeppa niatrecot lanoitanretnI hcihwrofsdradnatS naidnI sdradnatS osla .tsixe
ehT gnidnopserroc naidnI sdradnatS hcihw era ot eb detutitsbus ni ecalprieht era detsil below gnola htiw eergedrieht
fo ecnelaviuqe rof eht snoitide :detacidni
International Corresponding Indian Degree of
Standard Standard Equivalence
CEI buP 9701 - 1 : 2991 dohteM SI 6893i (Part 1) : 4991 sdohtem fo lacitnedt
fo tnemerusaem no sreviecer tnemerusaem no sreviecer rof etilletas
rof etilletas tsacdaorb -simsnart tsacdaorb noissimsnart ni eht 21 zHG
nois ni eht 21 zHG dnab traP :1 dnab : traP 1 oidaR ycneuqerf -erusaem
stnemerusaemycneuqerfoidaR stnem no roodtuo stinu

no roodtuo stinu

CEI buP 965 : 7791 evitamrofnI SI 0789 : 3991 evitamrofnI ediug rof yllacinhceT
ediug rof evitcejbus stset no VT evitcejbus stset no VT sreviecer (first tnelaviuqe
sreviecer revision)
ehT lacinhcet committee ehtrofelbisnopser noitaraperp fo siht dradnats sah ehtdeweiver snoisivorp fo gniwollofeht
sdradnats dna sah dediced taht yeht era elbatpecca rof esu ni noitcnujnoc htiw siht :dradnats
.1 CEI buP 701 - :1 7791 Recommended dohtem fo tnemerusaem no sreviecer rof noisivelet tsacdaorb
noissimsnart traP 1 : lareneG snoitaredisnoc - lacirtcelE stnemerusaem rehto naht esoht ta oidua
seicneuqerf
.2 RICC noitadnemmoceR 124 - 1 : 6691 tnemeriuqeR rof noissimsnart fo noisivelet slangis revo gnol
.secnatsid (System I .)detpecxE
.3 RICC noitadnemmoceR 005 - :3 6891 sdohteM rof eht evitcejbus tnemssessa fo eht ytilauq fo noisivelet
.serutcip
ylnO eht hsilgnE egaugnal txet ni eht CEI noitacilbuP sah neeb deniater elihw gnitpoda ti ni siht .dradnats
SI 13986 (Part-2) : 1994
IEC Pub 1079-2 : 1992
Indian Standard
METHODS FO MEASUREMENT ON RECEIVERS
ROF ETILLETAS BROADCAST SNOISSIMSNART
IN THE 12 zHG BAND
PART 2 LACIRTCELE STNEMERUSAEM ON SBD RENUT STINU
NOITCES 1 - LARENEG
1.1 Scope
sihT trap fo CEI 9701 seilppa ot eht renut tinu fo a reviecer rof eht tcerid noitpecer
fo etilletas tsacdaorb snoissimsnart ni eht 21 zHG .dnab ehT ,slennahc era esoht
denifed yb WARC 77-SB dna CRAR 38-TAS ’]l[ dna eht systems era esoht fo RICC
noitadnemmoceR 056 .]l[
ehT object fo siht trap fo CEI 9701 si ot enifed eht snoitidnoc dna sdohtem fo -erusaem
tnem ot eb .deilppa sihT trap seod ton yficeps ecnamrofrep .stnemeriuqer
ehT renut tinu comprises eht lennahc rotceles dna MF .rotaludomed ehT tupni ot siht tinu
si a puorg fo etaidemretni ycneuqerf ,slangis yllausu ni eht egnar 1 zHG ot 2 ,zHG hcihw
si dedivorp from na detaicossa roodtuo .tinu ehT roodtuo tinu sedulcni ta tsael a micro-
evaw annetna dna eht ycneuqerf retrevnoc ot eht tsrif etaidemretni .ycneuqerf
sdohteM fo tnemerusaem no roodtuo stinu era debircsed ni traP 1 fo lanoitanretnI
dradnatS CEI .9701
A redoced rof dnabesab dna atad slangis ‘may eb dedulcni ni eht renut .tinu sdohteM fo

tnemerusaem fo~ eht ,redoced ,revewoh era debircsed ni straP 4 dna 5 fo lanoitanretnI

dradnatS CEI 9701 rednu( .)noitaredisnoc
2.1 Normative references
ehT gniwokof evitamron stnemucod niatnoc snoisivorp ,hcihw hguorht ecnerefer ni siht
,txet etutitsnoc snoisivorp fo siht trap fo CEI .9701 tA eht time fo ,noitacilbup eht snoitide
detacidni erew .dilav llA evitamron stnemucod era tcejbus ot ,noisiver dna seitrap ot -eerga
stnem desab no siht trap fo CEI 9701 era degaruocne ot etagitsevni eht ytilibissop fo
gniylppa eht most tnecer snoitide fo eht evitamron stnemucod detacidni .woleb Members
fo CEI dna 0SI niatniam sretsiger fo yltnerruc dilav lanoitanretnI .sdradnatS
CE’I l-701 : ,7791 Recommended methods of measurement on receivers for television
broadcast ?ransmissions - Part 1: General considerations - Electrical stnemerusaem rehto
than those af audio-frequencies.
The figures in square brackets refer ot eht yhpargoilbiB xenna( A)
l
1
SI- 13988 (Part-P) : 1994
IEC Pub 10794 : 1992
CEI :9701 ,2997 Methods of measurement on receivers for satellite broadcast transmis-
sions in the 72 GHz band - Part 1: Radio-frequency measurements on outdoor units.
CEI :965 ,7791 Informative guide for subjective tests on television receivers.
CCIR Recommendation 421-1: 1966, Requirements for the transmission of television
signals over long distances (System I excepted)
RICC Recommendation 500-3: 1986, Method for the subjective assessment of fhe quality
of television pictures.
1 .3 Definitions
For eht esoprup fo siht trap fo CEI ,9701 eht gniwollof snoitinifed .ylppa
1.3.1 DBS tuner unit
ehT noitcnuf fo siht tinu si ot tceles a derised lennahc from a puorg fo slangis deviecer
dna detrevnoc ot a tsrif etaidemretni ycneuqerf yb eht roodtuo tinu dna ot edivorp -udomed
detal .stuptuo
ehT tcaxe noitarugifnoc fo eht tinu sdneped no eht llarevo tcudorp ngised dna eht detaler
noissimsnart sdradnats taht eht tnempiuqe si dengised ot .eviecer nI eht noitpircsed fO eht
tnemerusaem ,sdohtem ti si demussa taht eht tnemegnarra fo eht stinu si ralimis ot eht
lanoiton kcolb smargaid nwohs ni erugif .1 selpmaxE era nevig fo stinu rof eht CAM
systems dna eht latigid CSTN/reirrac-bus system.
A redoced rof eht dnabesab slangis may eb detaroprocni ni eht tinu or dehcatta ot ti sa a
etarapes .tinu nI eht rettal ,esac ti si demussa taht eht renut tinu sah eht gniwollof -retni

secaf ot eht :redoced

a) CAM systems:
tuptuo rof CAM etisopmoc oediv dna atad langis
tuptuo rof CAM atad langis .)lanoitpo(
b) !atigiD CSTN/reirrac-bus system:
tuptuo rof CSTN oediv langis
tuptuo rof latigid atad/dnuos .langis
2.3.1 tsrif etaidemretni ycneuqerf (first i.f.)
ehT tsrif etaidemretni ycneuqerf decudorp yb eht roodtuo tinu si yllausu ni eht dnab
fo 1 zHG ot 2 .zHG

2
SI 13988 (Part-2) : 1994
IEC Pub 1079-2: 2991
NOITCES 2 - LARENEG SETON ON TNEMERUSAEM
1.2 General conditions
2.1.1 Introduction
stnemerusaeM llahs eb made ni ecnadrocca htiw eht gniwollof snoitidnoc ot erusne
elbataeper .stluser ehT sdohtem debircsed ereh emussa eht esu fo eht gniwollof
noissimsnart systems: latigid ,CSTN/reirrac-bus ,CAM-B ,tekcap/CAM-C tekcap/CAM-D
dna .tekcap/CAM-2D noitamrofnI gniniatrep ot eseht systems may eb dnuof ni eht
secnerefer detsil ni xenna .A
-2.1.2 Test site
stnemerusaeM llahs eb deirrac tuo ta a noitacol taht si ton tcejbus ot lanretxe -retni
secneref from ycneuqerf-oidar .ygrene fI ecnerefretni tonnac eb ,dediova eht -erusaem
stnem llahs eb deirrac tuo ni a denee_rcs .moor
3.1.2 Environmental conditions
snoitceS ,eerhT ruoF dna eviF fo CEI l-701 llahs eb .deilppa
2.1.4 Power supply
A rewop ylppus tnelaviuqe ot eht detar egatlov dna detar ycneuqerf fo eht tinu llahs eb
.desu ehT snoitautculf fo eht rewop ylppus egatlov dna ycneuqerf gnirud eht stset llahs ton
deecxe 2+ % dna cinomrah stnenopmoc fo eht rewop ylppus llahs ton deecxe 5 .%
5.1.2 Accuracy of measuring instruments

ehT ycarucca fo eht gnirusaem stnemurtsni ,desu fi ,nwonk llahs rehtie eb detats sa a

egatnecrep or ni slebiced sa .etairporppa ,ylevitanretlA eht noisicerp ssalc may eb detouq
sa detats ni eht tnaveler .snoitacilbup
6.1.2 Stabilization period
sselnU esiwrehto ,deificeps stnemerusaem dluohs eb detrats ta eht time taht noitazilibats
fo eht scitsiretcarahc si .deniatbo
2.2 Video, audio and digital test signals
1.2.2 oediV test signals
a) 50% yerg level ;langis
b) owt resir esacriats ;langis
c) evif resir esacriats langis dewollof yb yerg ;slangis

3
IS 13986 (Part-2) : 1994
IEC Pub 1079-2 : 1992
)d net resir esacriats langis htiw ruoloc reirrac-bus dewollof yb yerg slangis latigid(
CSTN/reirrac-bus metsys ;)ylno
)e thgie resir esacriats langis htiw 6 zHM evawenis dewollof yb yerg slangis CAM(
smetsys ;)ylno
f) etisopmoc evawenis langis evawenis( no 05 % yerg level ;)langis
)g 1 su eslup no kcalb dna no 05 % yerg level ;slangis
)h RIV langis ruoloc( rab ta 07 % level sulp 05 % ecnanimul )rab latigid( -bus
CSTN/reirrac metsys :)ylno
)i xelpmoc noitalubbow langis - yranigami trap CAM( smetsys :)ylno
j) xelpmoc noitalubbow langis - laer trap CAM( smetsys ;)ylno
)k gnisir pmar langis CAM( smetsys ;)ylno
)I eslup dna rab langis for gnitar-K ;stnemerusaem
m) dleif ycneuqerf erauqs evaw .langis
selpmaxE era nwohs ni erugif .2 ehT smrofevaw )a ot ,)c f), )g dna )I era yltcerid
elbacilppa ot eht latigid CSTN/reirracbus .metsys roF eht MAC ,smetsys ti si yrassecen ot
egnahc eht level of eht enil gniknalb lavretni dna ot tresni eht atad .tsrub
NOTES
1 The slevel fo eht signals are desserpxe as a egatnecrep fo eht difference neewteb eht black level dna
white .level
2 The yerg signals in eht smrofevaw c). d) dna e) are used ot egnahc eht egareva picture level )LPA( in
eht egnar fo 01 % ot 09 %.
3 The digital sub-carrier/NTSC test signals include a composite cnys component. The CAM test signals
include a atad burst in eht line blanking .lavretni To diova eht necessity fo gnirevocer eht CAM cnys langiS
fromthe atad burst, line dna field cnys pulses yam eb dedivorp from eht test signal rotareneg directly ot eht
measuring instruments, gnissapyb eht equrpment rednu test.

2.2:2 Audio rest signals
ecniS lla eht smetsys derevoc yb siht trap of CEI 9701 esu latigid noitaludom for dnuos
noissimsnart dna sa siht trap si ylno denrecnoc htiw eht slangis ta eht MF ,rotaludomed
ereht si on cificeps tnemeriuqer for oidua .noitaludom ,revewoH where it is convenient to
ylppa hcus ,noitaludom a 1 kHz evawenis langis dluohs eb .desu
3.2.2 Data signal content
ehT smetsys derevoc yb siht trap of CEI 9701 lla edulcni a latigid .tnenopmoc ehT
sdohtem of tnemerusaem detaler ot eseht latigid slangis era dedulcni ni CEI .9701 ’nehW
a latigid tnenopmoc si dedulcni ni a tset langis for esu htiw siht ,trap eht atad llahs tsisnoc
of a elbatius oduesp modnar yranib ecneuqes esohw scitsiretcarahc llahs eb detats htiw
eht .stluser

4
IS 88931 (Part-2) : 4991
IEC Pub 1079-2 : 1992
3.2 ycneuqerf-oidaR tupni slangis
1.3.2 Input signals
ehT gniwollof ycneuqerf-oidar tupni slangis llahs eb :desu
)a detaludomnu reirrac ;langis
)b reirrac slangis detaludom yb eht tset slangis for eht metsys ni .esu
sselnU esiwrehto ,deificeps eht reirrac seicneuqerf llahs eb detceles from eht tnaveler tsrif
etaidemretni seicneuqerf gnidnopserroc ot eht etilletas tsacdaorb slennahc hcihw era
deificeps yb eht metsys sdradnats for hcihw eht tnempiuqe rednu tset si .dengised
2.3.2 Input signal levels
tupnI langis slevel ot a renut tinu llahs eb desserpxe ni smret of elbaliava rewop level ni
dB(mW).
3.3.2 Setting of input signal level
tupnI langis slevel dluohs eb deificeps for detaludomnu sreirrac neve nehw detaludom
sreirrac era .desu ehT level gnittes nac eb enod htiw a murtceps .rezylana
4.2 ecnerefeR slangis
1.4.2 Reference video signal
roF eht stnemerusaemm of esion dna ,ecnerefretni a etisopmoc evawenis langis sa nwohs
ni erugif 2 f) llahs eb .desu ehT ycneuqerf of eht evawenis si tes ta eht ycneuqerf )ot(
nwohs ni elbat .1
ehT ycneuqerf (f,) sdnopserroc ot eht 0 dB ecnerefer ycneuqerf of eht sisahpme-erp
.krowten
elbaT 1 - seicneuqerF for ecnerefer oediv slangis

metsyS LM
latigiD CSTN/reirrac-bus 57,0
CAM-B 46,2
CAM-C
CAM-2D 73.1
CAM-D
2.4.2 Reference audio signal
)a latigiD CSTNlreirrac-bus metsys
A 1 kHz evawenis langis ta a level gnidnopserroc ot lluf elacs sunim 81 dB ni latigid
gnidoc llahs eb .desu
)b MAC smetsys

ehT atad tsrub gniyrrac a oduesp modnar yranib ecneuqes llahs eb .desu
5