
cumm shore vaalaa avarodhak downconverter

ack cumm shore vaalaa block downconverter (lnb) upgrah tv reception key liye upayog kiye jaane vaale upgrah vyanjanon parr sthaapit praapt karane vaalaa upkaran haye, joe dish seey radio tarangon koo ekatra kartaa haye aur unhein ack sanket mein parivartit kartaa haye jise ack cable key madhyam seey imarat key ander receiver koo bheja jaataa haye. ise low-noise block, low-noise convertor (lnc), yaa yahaan taka kii low-noise downconverter (lnd) bhee kahaa jaataa haye, iss upkaran koo kabhi-kabhi galat tareeke seey "low-noise emplifier" ("lna") kahaa jaataa haye.
lnb cumm shore vaale pravardhak, aavritti mishran, sthaaniya ausilator aur madhyavarti aavritti (yadi) pravardhak kaa ack sanyojan haye. yeh upgrah receiver key aar. aff. front aind key roop mein kaary kartaa haye, dish dwara ekatra kiye gaye upgrah seey microwave signal praapt kartaa haye, ise badhaata haye, aur aavrittiyon key block koo madhyavarti aavrittiyon key nichale block (yadi) mein parivartit kartaa haye. yeh downconversion apekshaakrit saste samakshiya cable kaa upayog karke sanket koo indor upgrah tv receiver taka leey jaane kii anumati detaa haye; yadi sanket apani mool microwave aavritti parr rahata haye tou isake liye ack mahangi aur avyaavhaarik waveguide line kii aavashyakta hogi.
lnb aamtaur parr ack yaa ack seey adhik chhote uchhaal parr latkaaya gayaa ack chhota boxes hotaa haye, yaa feed arms, dish reflector key saamane, isake phocus parr hotaa haye (halanki kuchh dish design mein lnb parr yaa peechhe hotaa haye). dish seey microwave signal koo lnb parr ack feedhorn dwara uthaaya jaataa haye aur waveguide key ack khand koo khilaaya jaataa haye. ack yaa adhik dhaatu key pinn, yaa jaanch, aksh key samkon parr tarang margadarshika mein nikalate hain aur antena key roop mein kaary karate hain, joe prasanskaran key liye lnb key parirakshit boxes key ander ack mudrit circuit board koo sanket pradaan karate hain. cumm aavritti yadi output sanket boxes parr ack saaket seey nikalata haye jisase samakshiya cable judati haye.
lnb koo apani shakti receiver yaa sett-topp boxes seey milati haye, usee samakshiya cable kaa upayog karke joe lnb seey receiver taka sanket leey jaati haye. yeh "pret shakti" lnb taka jaati haye; lnb seey sanketon key vipareet.
ack sambandhit ghatak, jise block upconverter (bee. yuu. see.) kahaa jaataa haye, kaa upayog upgrah prithvi station (uplink) dish mein television chainalon key baind koo microwave uplink aavritti mein badalane key liye kiya jaataa haye.
pravardhan aur shore.
lnb dwara praapt sanket behad kamjor haye aur ise downconversion seey pahale pravardhit karna padata haye. lnb kaa cumm shore pravardhak khand sanket mein nyuntam sambhav matra mein shore jodate hue iss kamjor sanket koo badhaata haye.
lnb kii cumm shore kii gunavatta koo shore key aankade (yaa kabhi-kabhi shore kaa tapman) key roop mein vyakt kiya jaataa haye. yeh input parr signal too noise anupaat haye jise output parr signal too noise anupaat seey vibhajit kiya jaataa haye. ise aam taur parr decible (dee. bee.) moolya key roop mein vyakt kiya jaataa haye. aadarsh lnb, prabhaavi roop seey ack poorna pravardhak, mein 0 db kaa shore aankada hoga aur sanket mein koee shore naheen jodega. pratyek lnb kuchh shore lekin chatur design takneekon kaa parichay detaa haye, mahange uchch pradarshan vaale cumm shore vaale ghatak jaise kii hames aur yahaan taka kii nirmaan key baad lnb kii vyaktigat twicking, lnb key ghatakon dwara yogdan kiye gaye kuchh shore koo cumm curr sakati haye. bahut cumm tapman taka sakriya sheetlan shore koo cumm karane mein bhee madad curr sakata haye, aur aksar vaigyaanik anusandhaan anuprayogon mein iska upayog kiya jaataa haye.
utpaadan line seey door pratyek lnb mein vinirmaan sahishnuta key kaaran ack alag shore kaa aankada hotaa haye. vinirdeshon mein uddhrit shore kaa aankada, joe lnb kii upayuktata nirdhaarit karane key liye mahatvapurna haye, aamtaur parr naa tou usa vishesh lnb kaa pratinidhitva kartaa haye aur naa hii poori aavritti seema mein pradarshan, kyonki shore kaa aankada aksar uddhrit kiya jaataa haye, joe utpaadan samooh parr ausat "vishisht" aankada hotaa haye.
downconversion koo rokein.
upgrah apane tv sanketon koo prasaarit karane key liye tulanaatmak roop seey uchch radio aavrittiyon (microwave) kaa upayog karate hain. choonki microwave upgrah sanket aasaani seey divaaron, chhaton yaa kaanch kii khidakiyon seey naheen gujarate hain, isaliye upgrah antena koo baahar sthaapit karna behtar haye. halanki, plastic glazing microwave key liye pardarshi haye aur ghar key baahari saundarya koo sanrakshit karane key liye aavaasiya upgrah vyanjanon koo aikrelik yaa polly carbonate khidakiyon key madhyam seey dekhane key liye safaltapurvak ghar key ander chhipa diyaa gayaa haye.
lnb kaa uddeshya apekshaakrit uchch aavrittiyon key ack block (yaa baind) koo lene key liye heteroading kaa upayog karna haye aur unhein bahut cumm aavritti (jise madhyavarti aavritti yaa yadi kahaa jaataa haye) parr leey jaane vaale samaan sanketon mein parivartit karna haye. yeye cumm aavrittiyaan bahut cumm ksheenan key saath kebalon key madhyam seey yatra karati hain, isaliye cable key upgrah receiver key anta mein bahut adhik sanket bachaa hotaa haye. upgrah sancharan kii bahut uchch aavrittiyon key bajaay, inn cumm aavrittiyon parr kaam karane key liye electronic paripathon koo design karna bhee bahut aasaan aur sastaa haye.
aavritti roopaantaran aaney vaale sanket key saath lnb key ander ack sthaaniya ausilator dwara utpaadit ack nishchit aavritti koo milakar kiya jaataa haye, taaki unaki aavrittiyon aur antar key yog key barabar dou sanket utpann kiye jaa sakein. aavritti yog sanket koo filter kiya jaataa haye aur aavritti antar sanket (aaee. aff.) koo pravardhit kiya jaataa haye aur cable koo praaptakarta koo bheja jaataa haih
jahan sootra _ 3 ack aavritti haye.
sthaaniya ausilator aavritti nirdhaarit karati haye kii aaney vaali aavrittiyon key kaun seey khand koo praaptakarta dwara apekshit aavrittiyon mein parivartit kiya jaataa haye. udaaharan key liye, estra 1kr seey aaney vaale sanketon koo cumm karane key liye, joe 10.70-11.70 Ghz key aavritti khand mein sanchaarit hotaa haye, ack maanak europeeya receiver key bheetar yadi 950-2,150 mhz kii tuning seema haye, tou 9.75 Ghz sthaaniya ausilator aavritti kaa upayog kiya jaataa haye, joe baind 950-1,950 mhz mein sanketon key ack khand kaa utpaadan kartaa haye.
estra 2aeye aur 2bee (11.70-12.75 ghjd) dwara upayog kii jaane vaali uchch sancharan aavrittiyon key khand key liye, ack alag sthaaniya ausilator aavritti aaney vaali aavrittiyon key khand koo parivartit karati haye. aam taur parr, 10.60 Ghz kii ack sthaaniya ausilator aavritti kaa upayog block koo 1,100-2,150 mhz mein badalane key liye kiya jaataa haye, joe abhee bhee praaptakarta key 950-2,150 mhz key bheetar haye yadi tuning seema haye.
see-baind antina setup mein, sancharan aavrittiyaan aam taur parr 3.7-4.2 Ghz hoti hain. 5.150 Ghz kii sthaaniya ausilator aavritti kaa upayog karke, aggar 950-1,450 mhz hoga, joe phir seey, receiver kii aggar tuning seema mein haye.
wideband upgrah television vaahakon key swaagat key liye, aamtaur parr 27 megahertz chaude, lnb sthaaniya ausilator kii aavritti kii sateekta kewal ± 500 kii. heartz key crum mein honey chaahiye, isaliye cumm laagat vaale paraavartak ausilator (dee. aar. oh.) kaa upayog kiya jaa sakata haye. sankeern bandwidth vaahakon yaa unnat modulan takneekon kaa upayog karane vaale, jaise kii 16-kai. aim., key swaagat key liye atyadhik sthir aur cumm charan key shore ell. aine. bee. sthaaniya ausilator kii aavashyakta hoti haye. yeye ack aantarik chrystal ausilator yaa indor ikai seey ack baahari 10 megahertz sandarbh aur ack charan-bund loop (pee. ell. ell.) ausilator kaa upayog karate hain.
cumm shore vaale block feedhorn (lnbfs).
1988 mein sez dwara europe mein pahale dee. tii. aich. prasaran upgrah (estra 1aeye) key prakshepan key saath, pratyaashit badey paimaane parr bajar key liye antina design koo saral banaaya gayaa thaa. vishesh roop seey, feedhorn (joe sanket koo ikattha kartaa haye aur ise lnb taka nirdeshit kartaa haye) aur dhruvikaran (joe alag-alag dhruvikrit sanketon key beach chayan kartaa haye) koo lnb key saath ack ekal ikai mein jodaa gayaa thaa, jise lnb-feed yaa lnb-feedhorn (lnbf), yaa yahaan taka kii ack "estra prakaar" lnb kahaa jaataa haye. inn sanyukt ikaaiyon key prasaar kaa matlab haye kii aaj lnb shabd kaa upayog aamtaur parr una sabhi antina ikaaiyon koo sandarbhit karane key liye kiya jaataa haye joe feedhorn key saath yaa usake binaa block-down conversion kaary pradaan karate hain.
estra prakaar kaa lnbf jisamen ack feedhorn aur polarizer shamil haye, sabse aam kism haye, aur ise ack koshthak kaa upayog karke ack vyanjan mein fitt kiya jaataa haye joe feedhorn aur electronics package key beach lnb kii waveguide gardan key chaaron or ack collar koo pakadata haye. lnb gardan aur collar kaa vyaas aamtaur parr 40 mimi hotaa haye, halanki anya aakar bhee utpaadit kiye jaate hain. britten mein, skye digital key saath upayog key liye becha jaane vaalaa "minidish" aur freesat ack ekikrit clip-inn mount key saath ack lnbf kaa upayog kartaa haye.
binaa feedhorn key lnb koo aamtaur parr input waveguide munh key chaaron or ack (see120) flange pradaan kiya jaataa haye jise feedhorn yaa dhruvikaran ikai key utpaadan key aspas ack milan flange mein boult kiya jaataa haye.
dhruvikaran.
upgrah tv sanketon kaa dhruvikaran karna aam baat haye kyonki yeh aavrittiyon key diye gaye khand kaa upayog karke adhik tv chainalon koo prasaarit karane kaa ack tarika pradaan kartaa haye. iss drishtikon key liye praapt karane vaale upkaranon key upayog kii aavashyakta hoti haye joe aaney vaale sanketon koo unake dhruvikaran key aadhar parr filter curr sakate hain. dou upgrah tv sanketon koo phir ack hii aavritti (yaa, adhik aam taur parr, nikatata seey doori vaali aavrittiyon) parr preshit kiya jaa sakata haye aur basharte kii way alag-alag dhruvikrit houn, praapt karane vaalaa upkaran abhee bhee unhein alag curr sakata haye aur vartamaan mein joe bhee aavashyak hoe usey pradarshit curr sakata haye.
duniya bhar mein, adhikansh upgrah tv prasaran urdhvaadhar aur kshaitij raikhik dhruvikaran kaa upayog karate hain lekin uttari america mein, dee. bee. aiss. prasaran baaen aur daaen haath key golakar dhruvikaran kaa upayog karate hain. uttari americi dee. bee. aiss. ell. aine. bee. key tarang margadarshika key bheetar paraavartak samagri key ack slab kaa upayog baaen aur daaen golakar dhruvikrit sanketon koo urdhvaadhar aur kshaitij raikhik dhruvikrit sanketon mein badalane key liye kiya jaataa haye taaki parivartit sanketon koo samaan roop seey maanaa jaa sakey.
lnb waveguide key ander kii jaanch sanketon koo ekatra karati haye joe jaanch key samaan tala mein dhruvikrit hotey hain. vaanchhit sanketon kii taakat koo adhikatam karane key liye (aur vipareet dhruvikaran key avaanchhit sanketon key grahan koo cumm karane key liye), jaanch koo aaney vaale sanketon key dhruvikaran key saath sanrekhit kiya jaataa haye. yeh sabse saralata seey lnb key "tirchhe" koo samaayojit karke praapt kiya jaataa haye; tarang-maargdarshak aksh key baare mein iska ghoornan. dou dhruvikaranon key beach door seey chayan karane key liye, aur tirchhe konn kii ashuddhiyon kii bharpai karane key liye, lnb key tarang maargdarshak munh key saamane ack "dhruvikaran" fitt karna aam baat huaa karati thee. yeh yaa tou aaney vaale sanket koo tarang-maargdarshak (ack chumbakiya dhruvikaran) key chaaron or ack vidyut-chumbak key saath ghumaata haye yaa ack sarvo motor (ack yaantrik dhruvikaran) kaa upayog karke tarang-maargdarshak key bheetar ack madhyavarti jaanch koo ghumaata haye, lekin iss tarah key samayojya tirchhe dhruvikaran kaa upayog aaj shayed hii kabhi kiya jaataa haye.
antina design kaa saralikaran joe lnbf kaa utpaadan karane key liye europe mein pahale estra death prasaran upgrahon key saath thaa, urdhvaadhar aur kshaitij dhruvikrit sanketon key beach chayan key liye ack saral drishtikon taka bhee vistaarit huaa. estra prakaar key lnbf mein waveguide mein dou jaanch shamil hotey hain, ack dusare key samkon parr taaki, ack baar lnb koo sthaaniya dhruvikaran konn seey mell khaane key liye apane mount mein tirchha kiya jaae, tou ack jaanch kshaitij sanketon koo ekatra karati haye aur doosari urdhvaadhar, aur ack electronic switch (receiver seey lnb kii bijli aapoorti key voltage dwara niyantritah urdhvaadhar key liye 13 vee aur kshaitij key liye 18 vee) yeh nirdhaarit kartaa haye kii pravardhan aur block-down roopaantaran key liye lnb key madhyam seey kaun saa dhruvikaran paarit kiya jaataa haye.
aise ell. aine. bee. binaa kissy chalati purjon key aur receiver seey judee kewal ack cable key saath ack upgrah seey sabhi sancharan praapt curr sakate hain, aur taba seey sabse aam prakaar kaa ell. aine. bee. bunn gayaa haye.
samanya lnb.
see-baind lnb.
yahaan uttari americi see-baind lnb kaa ack udaaharan diyaa gayaa haih
key-baind lnb.
maanak uttari america kyu baind lnb.
yahaan ack maanak raikhik lnb kaa ack udaaharan diyaa gayaa haih
saarvbhaumik lnb ("estra" lnb).
europe mein, jaise-jaise 1990 key dashak mein cess ney 19.2°ee kakshiya sthiti mein adhik estra upgrahon koo prakshepit kiya, fss baind (10.70-11.70 ghjd) mein upayog kii jaane vaali downlink aavrittiyon kii seema usa samay key maanak lnbs aur receivers dwara pradaan kii jaane vaali seema seey aage badh gaee. estra 1dee seey sanketon key grahan key liye receivers key vistaar kii aavashyakta hoti haye yadi tuning 950 seey 1,950 megahertz seey 950-2,150 megahertz taka hoti haye aur lnbs kii sthaaniya ausilator aavritti koo samanya 10 gigahertz seey 9.75 gigahertz (tathaakathit "unnat" lnbs) mein badalana padata haye.
estra 1ee aur usake baad key upgrahon key prakshepan ney naee digital sevaaon key liye aavrittiyon key bss baind (11.70-12.75 ghjd) key estra dwara pahala upayog dekhaa aur ack lnb kii shuruat kii aavashyakta thee joe poori aavritti seema 10.70-12.75 ghjd, "saarvbhaumik" lnb praapt karega.
ack saarvbhaumik lnb mein sanchaalan key dou tareeke pradaan karane key liye 9.75/10.60 geegahertz kii ack parivartaniya sthaaniya ausilator aavritti hoti haih nimn baind reception (10.70-11.70 geegahertz) aur uchch baind reception (11.70-12.75 geegahertz). sthaaniya ausilator aavritti koo judey hue receiver seey aapoorti voltage parr lagaae gaye 22 khjd sanket key jawab mein switch kiya jaataa haye. dhruvikaran key beach switch karane key liye upayog kiye jaane vaale aapoorti voltage star key saath, yeh ack saarvbhaumik lnb koo dhruvikaran (urdhvaadhar aur kshaitij) aur praaptakarta key niyantran mein upgrah mein aavrittiyon kii poori shrinkhala donon koo chaar upa-baindon mein praapt karane mein saksham banaata haih
yahaan europe mein upayog kiye jaane vaale saarvbhaumik lnb kaa ack udaaharan diyaa gayaa haih
uttari america dee. bee. aiss. ell. aine. bee.
yahaan dee. bee. aiss. key liye upayog kiye jaane vaale ell. aine. bee. kaa ack udaaharan diyaa gayaa haih
key baind lnb.
 kaa baind 
 13v sahee 20.2-21.2 Ghz
 18v baaen 20.2-21.2 Ghz
 sthaaniya oh. aiss. see. 19.25 geegahertz aggar 950-1950 mhz baahar hoe
 13v sahee 21.2-22.2 Ghz
 18v baaen 21.2-22.2 Ghz
 sthaaniya oh. aiss. see. 20.25 aggar 950-1950 mhz baahar haye
 norsat kaa baind
 13v sahee 18.2-19.2 Ghz
 18v baaen 18.2-19.2 Ghz
 sthaaniya oh. aiss. see. 17.25 aggar 950-1950 mhz baahar haye
bahu-utpaadan ell. aine. bee.
dohri, dohri, chaudi aur aucto lnbs.
ack ekal feedhorn key saath ack lnb lekin kaee tunors seey judane key liye kaee output (alag-alag receivers mein yaa ack hii receiver key bheetar ack twin-tunor pvr receiver key mamle mein). aam taur parr, dou, chaar yaa aathh output pradaan kiye jaate hain. pratyek output anya output seey swatantra roop seey tunor key baind aur dhruvikaran chayan sanketon kaa jawab detaa haye aur tunor koo ack alag lnb key roop mein "dikhaai detaa haye". aisaa lnb aamtaur parr kissy bhee output seey judey receiver seey apani shakti praapt curr sakata haye. aprayukt utpadanon koo asambandhit chhod diyaa jaa sakata haye (lekin poore lnb kii suraksha key liye jalrodhak).
notah sanyukt raajya america mein dou output vaale lnb koo "dohare lnb" kahaa jaataa haye, lekin britten mein "dohare lnb" shabd ney aitihaasik roop seey dou output vaale lnb kaa varnan kiya haye, jisamen seey pratyek kewal ack dhruvikaran kaa utpaadan kartaa haye, ack bahu-switch seey judaav key liye (shabd aur lnb saarvbhaumik lnb aur bahu-switch samkaksh, quatro lnb-neeche dekhein) kii shuruat key saath upayog seey baahar hoe gaye. aaj "dohri lnb" (aur "dohri feed") dou upgrah sthitiyon seey swaagat key liye antena kaa varnan kartaa haye, jisamen dou alag-alag lnb yaa dou feedhorn key saath ack ekal monoblock lnb kaa upayog kiya jaataa haye. britten mein, "twin-output lnb", yaa buss "twin lnb" shabd kaa upayog aamtaur parr ack ekal feedhorn lekin dou swatantra output vaale lnb key liye kiya jaataa haye.
quatro lnbs.
ack vishesh prakaar kaa lnb (kwad lnb key saath bhramit naheen honah chaahiye) jiska upayog kissy bhee sankhya mein tunor koo sanket dene key liye ack saajha dish installation mein kiya jaataa haye. ack quatro lnb mein ack feedhorn aur chaar output hotey hain, joe pratyek ack multiswitch yaa multiswitch kii ack sarani koo kewal ack koo upa-baind (nimn baind/kshaitij dhruvikaran, uchch baind/urdhvaadhar dhruvikaran, nimn/urdhvaadhar aur uchch/kshaitij) kii aapoorti kartaa haye, joe phir pratyek judey hue tunor koo vitarit kartaa haye joe bhee usa tunor dwara aavashyak upa-baind haye.
halanki ack quatro lnb aamtaur parr ack kwad lnb key samaan dikhta haye, lekin ise (samajhadaari seey) seedhe receivers seey naheen jodaa jaa sakata haye. ack kwad aur ack quatro lnb key beach key antar koo phir seey nott karenh ack kwad lnb seedhe chaar tunor chalaa sakata haye, jisamen pratyek output poore kyu baind seey sanket pradaan kartaa haye. ack quatro lnb ack saajha vyanjan vitaran pranali mein ack bahu-chudail seey judane key liye haye aur pratyek output kyu baind sanketon kaa kewal ack chauthai pradaan kartaa haye.
upgrah channel router (aiss. aar.), yaa ekaatmak ell. aine. bee. aiss..
ekal cable vitaran pranali mein ack upgrah channel router (aiss. aar. key.) yaa ack-saa ell. aine. bee. seey bhee kaee tunor diye jaa sakate hain. ack ekaatmak lnb mein ack output connector hotaa haye lekin yeh maanak lnb seey alag tareeke seey kaam kartaa haye taaki yeh ack ekal coex cable key saath kaee tunor dezzy-chain koo feed curr sakey.
praapt poore spectrum koo block-down convert karane key bajaay, ack aiss. aar. ell. aine. bee. praapt sanket key ack chhote seey hisse (upgrah parr ekal transponder kii bandwidth key barabar) koo downconvert kartaa haye, jise praaptakarta seey ack asangat-anupaalan adesh key anusaar chunaa jaataa haye, taaki aaee. aff. mein ack nishchit aavritti parr output kiya jaa sakey. 32 taka key tunors koo aaee. aff. seema mein ack alag aavritti aavantit kii jaa sakati haye aur pratyek key liye, aiss. aar. key. ell. aine. bee. sambandhit vyaktigat roop seey anurodhit transponder koo downconvert kartaa haye.
adhikansh aiss. aar. aine. bee. mein yaa tou sanchaalan kaa ack viraasat mode yaa ack alag viraasat output bhee shamil haye joe paaramparik tareeke seey praapt spectrum koo samagr aaee. aff. renz mein block-down convert pradaan kartaa haye.
wideband lnb.
10.40 yaa 10.41 Ghz kii ausilator aavritti key saath estra universal wideband lnb bajar mein pravesh curr rahey hain. madhyavarti aavritti patti paaramparik lnb kii tulanaa mein bahut chaudi hoti haye, kyonki uchch aur nimn patti vibhajit naheen hoti haye.
wideband lnb sanketon koo nae wideband tunors dwara aur nae aiss. aar. see. pranaliyon dwara sweekaar kiya jaa sakata haye.jee., inverto/fuba, unitron, optel, gt-sait/astro), optical sancharan key saath yaa usake binaa. wideband sanketon koo paaramparik quatro sanketon mein parivartit kiya jaa sakata haye aur isake vipareet.
farwari 2016 mein, skye (yuke) ney ack nayaa lnb launch kiya joe kewal apane nae wideband tunor key saath sangat thaa. iss lnb mein sabhi urdhvaadhar dhruvikrit chainalon key liye ack bandargah haye, donon nimn aur uchch baind key liye, aur sabhi nimn aur uchch baind kshaitij chainalon key liye ack aur bandargah haye. mool model mein kewal 2 connection hain aur sambhavatah 10.7-12.75 Ghz key input seey 290-2340 mhz kii madhyavarti aavritti key saath 10.41 Ghz kaa ack sthaaniya ausilator haye. yeh lnb unitron key estra universal wideband lnb key samaan prateet hotaa haye. sabhi chainalon taka pahunchane key liye nyuntam dou kebalon kii aavashyakta hoti haye. skye kyu boxes mein, kaee tunor kaee chainalon kaa chayan curr sakate hain, joe dohri samaank pranaliyon key liye samanya dou seey adhik hain. iss prakaar kaa lnb britten mein upayog kiye jaane vaale adhik samanya estra universal lnb key saath asangat haye jiska arth haye kii unnayan key dauran lnb koo badal diyaa jaataa haye. 6 connections key saath lnb kaa ack model haye, 2 skye kyu key liye aur 4 estra universal lnb kaee viraasat pranaliyon vaale upayogkartaon key liye jaise kii skye kyu key alawa freesat. aise mamalon mein jahaan kewal ack cable sambhav haye, jaise kii apartment block, skye kyu sangat multiswitch kaa upayog kiya jaa sakata haye, joe isake bajaay bee. aiss. key. aiss. aar. kaa upayog karate hain.
optical fiber lnbs.
fiber upgrah vitaran pranaliyon key liye ell. aine. bee. paaramparik vidyut ell. aine. bee. key samaan kaam karate hain, sivaay isake kii dou sanket dhruvikaranon mein 10.70-12.75 Ghz key poore key baind spectrum mein sabhi chaar upa-baind ack saath block-down parivartit hotey hain (jaisa kii ack quatro ell. aine. bee. mein). chaar upa-baindon key aaee. aff. aiss. koo 0.95-5.45 jee. aich. jee. (4.5 jee. aich. jee.) kii seema key saath banaane key liye dher kiya jaataa haye, jise fiber cable koo neeche bhejane key liye ardhchaalak lazer kaa upayog karke ack optical signal parr modulate kiya jaataa haye.
receiver parr, optical signal koo paaramparik vidyut signal mein parivartit curr diyaa jaataa haye taaki receiver koo paaramparik lnb key roop mein "dikhaai" dey.
monoblock lnbs.
ack monoblock (yaa monoblock) lnb ack ekal ikai haye jisamen dou, teen yaa chaar lnb aur ack discuci switch hotaa haye, jise dou, teen yaa chaar upgrahon seey sanket praapt karane aur chayanit sanket koo praaptakarta koo pradaan karane key liye design kiya gayaa haye. dou lnbs key feedhorn ack vishesh kakshiya prithakkaran (aksar 6°, lekin 4°) key upgrahon key swaagat key liye ack nishchit doori parr hotey hain. halanki ack hii karyakshamta koo alag-alag lnbs aur ack switch key saath praapt kiya jaa sakata haye, ack ikai mein nirmit ack monoblock lnb, sthaapit karane key liye adhik suvidhajanak haye aur donon feedhorn koo vyaktigat roop seey cases kiye gaye lnbs (aamtaur parr 60 mimi vyaas) kii tulanaa mein ack saath karib honey mein saksham banaata haye. feedhorn key beach kii doori praapt kiye jaane vaale upgrahon key kakshiya prithakkaran, upayog kiye jaane vaale vyanjan key vyaas aur kendra kii lambai aur upgrahon key saapeksh swaagat sthal kii sthiti parr nirbhar karati haye. isaliye monoblock lnbs aamtaur parr ack samjhauta samadhan haye jise ack vishesh kshetra mein maanak vyanjanon key saath kaam karane key liye design kiya gayaa haye. udaaharan key liye, europe key kuchh hisson mein, germ pakshi aur 19.2°ee upgrahon koo praapt karane key liye design kiye gaye monoblock lokpriya hain kyonki way ack mahange, dheeme aur shore-sharabe vaale motoryukt vyanjan kii aavashyakta key binaa ack hii vyanjan parr donon upgrahon koo praapt karane mein saksham banaate hain. estra 23.5°ee aur estra 19.2°ee donon sthitiyon seey sanketon key ack saath grahan key liye duo lnb dwara ack samaan laabh pradaan kiya jaataa haye.
triple monoblock lnb ikaaiyaan bhee upalabdh hain, joe upayogkartaon koo teen upgrah praapt karane mein saksham banaati hainh
udaaharan key liye hotbird 13°ee, utelsat 16°ee aur estra 19.2°ee
yaa usee kaa upayog sthitiyon key liye kiya jaa sakata haih utelsat 7°ee, utelsat 10°ee aur hotbird 13°ee. iss monoblock kaa upayog samaan doori (3° + 3° = 6° doori) key saath anya sthitiyon key liye kiya jaa sakata haye.
alag-alag antaral key liye anya bahut lokpriya udaaharan haih estra 1:19.2°ee, estra 3:23.5°ee aur estra 2:28.2°ee (4.3° + 4.7° = 9° antaral).
aur chaar feed monoblock lnb ikaaiyaan bhee upalabdh hain, joe upayogkartaon koo chaar upgrahon seey sanket praapt karane mein saksham banaati hain, udaaharan key liye eurobird 9°ee, hotbird 13°ee, estra 19.2°ee aur estra 23.5°ee (4° + 6.2° + 4.3° = 14.5° antar).
aajkal beche jaane vaale adhikansh receiver cumm seey cumm discuci 1 key saath sangat hain joe swachaalit roop seey 4 upgrahon (sabhi samkaaleen monoblock lnb) key beach switch karane kii anumati detaa haye, kyonki upayogkarta remot controll parr channel badalata haye.
thandaa tapman.
ack lnb mein namee jamana sambhav haye, jisase bahut cumm tapman parr burf bunn jaati haye. yeh kewal tabhi honey kii sambhavana haye jaba lnb upgrah receiver (i.ee.koee karyakram naheen dekhaa jaa rhaa haye). iska mukabala karane key liye, kaee upgrah receiver lnb koo sanchaalit rakhane kaa vikalp pradaan karate hain, jabaki receiver taiyar rahata haye. vaastav mein, adhikansh lnb koo sanchaalit rakhaa jaataa haye kyonki yeh tapman koo sthir karane mein madad kartaa haye aur iss tarah, lnb key paripath seey vighatit garmi dwara sthaaniya ausilator aavritti. yuke bee. aiss. key. bee. receivers key mamle mein, ell. aine. bee. standbye mein rahate hue sanchaalit rahata haye taaki receiver firmware update aur electronic prograam guide update praapt curr sakey. sanyukt raajya america mein, ack dish network receiver seey judaa lnb sanchaalit rahata haye taaki system raat mein software aur firmware update praapt curr sakey aur havaa mein jaankaari kaa margadarshan curr sakey. turkey mein, ack anya lnb prakaar key digitorq aim. dee. yuu. koo encrypted samagri koo dekhane key liye vode samagri, stb firmware, ee. pee. jee. detta aur paye-tv kunji praapt karane key liye sanchaalit kiya jaataa haye.

