Digital anteeno for DVB-T2 gacmahooda

koodh Digital awood signal telefishanka si ay u gaarsiiyaan qadanayo, yareeyo khasaaraha kasta. TV si ay u taageeraan technology, waxaad u baahan tahay antenna ah DVB-T2. gacmaha iyaga u gaar ah si ay u sameeyaan aalad noocan oo kale ah waa wax badan ka jaban tahay si ay u iibsadaan diyaar-dhigay, bixinta ku saabsan 3 kun oo loogu talagalay. rubles. Air digital TV badalay dhamaan noocyada la mid ah calaamadaha gudbinta, halka bixiya tayo sare leh oo kala duwan oo ah channels warbaahinta.

Isbedelka hawada

Samee antenna for TV tube a waxaa loo tixgeliyaa inay beryihii hore ee in uu waqti la qaderiyo oo ay muujinaysaa heerka xirfada ee wakhtigan casriga ah danta in qalabka macmal ah uusan ka demayn, iyo dad badan oo la sameeyey lagama maarmaan antenna DVB-T2 gacmahaaga. saarayaasha qalabka warshadaha in ay qabsanayeen xaaladda beddelo of dhaweynta isku xidha korontada oo casri ah si ay u taaga ee dhismaha lagu ogaa, ma bixinta si ay xaqiiqada ah in xaaladda guud ee hawlgalka antenna waa ay is dhexgalka ee signallo tan kuwa dhulkuna dareenka.

Sanadihii la soo dhaafay, ku dhowaad dhammaan warbaahinta qaadataa meel kala duwan ee DVB-T2, taas oo yaraynaysa qarashka iyo nayaa, ka dhaqaale of view, antenna-mara saldhigyada kala iibsiga beeraha. Waayo, dayactirka wareegsan u baahan yahay shaqaalaha ka yar heer sare ah loo tababaray, shuqulkiisa noqdo ka yar waxyeelada leh iyo khatar ah.

Laliska idaacada calaamadaha daboolo dhammaan magaalooyinka waaweyn iyo magaalooyinka dadku ku nool yihiin si loo qabsado ruxruxo khafiif ka saldhigyada joogin meel fog noqdo khuseeya haddii antenna rakibay u helo DVB-T2, gacmahooda qalabka fudud looga heli karaa dhigay.

Sababo la xiriira dhismaha la fidiyey ee dhismayaasha la taaban karo oo ay sii xoojiyeen magaalada ayaa si weyn u bedelay shuruudaha faafinta signal ee degsiimooyinka. dhismayaasha Multi-dabaq mab biraha waa nooc ka mid ah muraayad, oo muujineysa hirarka dhawr jeer ilaa suuska buuxda.

In warbaahinta live channels badan maanta. signalka digital waa ka dadka kale ee kala duwan ee in midkood yahay ama waxa aan la, meel dhexe aan la siin. nidaamka kale ee la isugu gudbiyo lagu gartaa xaqiiqada ah in channels ka Arkaa buuq kala duwan, taasoo keenta tayada hoos turjumaad, mararka qaarkood waxaa laga yaabaa in image kaliya lumaan. Anteeno for DVB-T2, isagoo gacmihiisa ku sameeyey, u ogolaan doonaa in ay aqbalaan signal isku mid ah oo dhan channels, taas oo sawir ka mid ah oo tayo leh.

signal baahinta dijitaalka gaarka ah in aysan ka dalban faragelinta haddii ay ka badato qaylada dunuunaca badh, soo dhawaynta wanaagsan ee la sameeyaa. On luma jaanqaadayn signal saamayn ku cable ama wajiga dhalanrog ee qayb kasta oo ka mid ah qolkii gudbinta si tuner ah, image waa kala firdhi kartaa qaybo yaryar xitaa haddii farriin adag.

sifooyinka Gundhiga for soo saaridda ee antenna ah

Ka hor inta sida loo sameeyo ee antenna DVB-T2 gacmahoodii, waa in la baaro mabda'a ay hawlgalka.

In lagu soo qabto signalka digital waxaa loo baahan yahay antenna UHF, taas oo ah mid aad u fudud in la qorsheeyo xitaa ka cable fudud, samaynta xisaabinta sax ah.

Fikradda waa in signalka digital waxaa si fudud lagu turjumay kala duwan decimeter oo la qaadi karo nooc kasta oo anteeno, laakiin dhab ahaan had iyo jeer uma shaqeeyaan.

Samee Television madax bannaan suurto gal ah kharashka ugu yar oo aan gargaar ka mid ah kuwa dibadda ah, laakiin waa in la xusuusto in sheyga helay tayo dhaweynta waa aaladaha xirfad liita.

Shuruudaha anteenooyinkooda

xaaladaha cusub ee baahinta, qaybinta iyo soo dhaweynta hawada bedesho shuruudaha aasaasiga ah in la buuxiyo by antenna TV oo aad gacmihiinna ku ah. DVB-T2 ayaa hore u la joojiyay horgalaha weyn iyo falalka is-dhawridda jiho. Waxay yihiin aaladaha casriga ah ma laha, tan iyo hawada waa nijaasaysan yahay, oo u dirira xitaa la faragelin ingress yar ayaa suuragal ah keliya by yahay ee korantada. Isla mar ahaantaana, waxay door muhiim ah Wehliyaha faa'iido anteeno gaar ah (CG).

Anteeno si fiican baafinta Ester ayaa headroom awood for signal ka helay kaas oo u ogolaanaya korontada si ay u haadiyo ka faragelinta iyo qaylada. antenna Modern for DVB-T2, isagoo gacmihiisa ku sameeyey, haysaa waxqabadka korontada ee hab dabiici ah, oo aan ku habboon oo xuduudaheedu ku aqbali karo iyadoo la isticmaalayo farsamooyin injineernimada. Waxaa la isku raacay in kala duwan oo soo noq hawlgalka oo dhan iyada oo aan isticmaalka qalabka miisaamid.

Sifooyinka oo ka mid ah Ilodanimada inayan iyo inta jeer ee antenna ah

antenna waxaa suurto more siman, wajiga dhalanrog dhacdo ay sabab u tahay dabeecadda warshadu hawada fiiqan iyo lumo. antenna Single-noqnoqoshada fidiyey ee la xiriirta la aqbali karo in ay signal qaylada, oon u bandhigan si aad u hesho ilaa 40 channels. Laakiin yihiin in la is waafajiyo dheeraad ah Sammeecado in nuugo hirarka ama yaynaan tilmaamayaasha wajiga.

The anteeno digital DVB-T2 ugu waxtarka badan gacmo lagu sameeyey iyaga u gaar ah:

• chastotonezavisimoy - qaab yar yahay, laakiin riqiis ah oo sahlan in ay soo saaraan, soo dhisay muddo gaaban, waayo qaata hawada yara nadiif at meel u dhow saldhiga isugu gudbiyo;
• kala duwan oo wakhtiyeysan, ururinta hirarka oo dhan in meel bannaan oo u furan, iyaga noocyada ugu fiican oo ka duwan qaab-dhismeedka fudud ka shaqeeya dhammaataan wajihi Frieder oo dhan qaata kordhinta.

Haddii aan ka hadlo design ah, anteeno ka DVB-T2 ugu fudud oo aad gacmihiinna waxaa soo saaray ee version "sideed", "Polish" iyo "square".

antenna ee nooca "sideed"

Waxaa loola jeedaa aalad si fudud constructible qaybiyay si waafaqsan nooca ka mid ah sideedii caadiga ah, kaas oo iftiinta waa lagaa saarayaa. Qoraalkani wuxuu ku haboon yahay silig copper, laakiin aaladda aluminium lagu dabaqi karo, geeska, tube, taayirrada, profile kale. Cabbirka sare ee 140 mm, qayb ka mid ah lateral of dhererka 130 mm, laakiin dhinacyada waxyaalahan waxaa loo siiyey Hanuuniye ee wax soo saarka waa in uusan iyaga hor joogsan si sax ah si ay u millimeter.

Si aad u bilaabaan dherer silig cut of 112 cm, waxay bilaabaan in la leexiyo qaybta hore ee 140 dhererka mm, 130 mm kuwaas oo u dhaco si antenna ah, iyo 10 mm waxaa loogu loop a. Laba qayb dheeraad ah duubnaadaan at dhererka isku mid ah 140 mm, ka dib markii laba - 130 mm, labada ciyaaryahan ee soo socda ee 140 mm, raaceen by kale 140 mm, kadibna - 130 mm, oo waxaad ka samaysaa loop labaad. Xeryahooda pre-nadiifiyaa, marka la isku daro iyo soldered, waxay sidoo kale xiriir ee sii kordhaya core cable ka.

Siibi cable oo isku xira lagu sameeyey a files neerif iyo irbad. Ka dib, kabida, kulanka waxaa laga shaabadeeyey laba iyo koolo ka qori kulul addoonsi. Haddii aan ka hadlo siib, koolo waxaa ku shubtay galay xarunta of adhesions, ka dibna galay saabka of cap ah, ka dibna xad-dhaaf ah waa lagaa saarayaa. Isgoyska waxaa si dhakhso ah u socday, taasi ma dhicin Asagoo arigtadaa ka mass koolo. Waxaaba adag oo weligeed la xidhiidha adkeysi. Waayo, xiriir aan la nadiifiyo cable uu dhamaado by fur ee 1 cm ka antenna - 2 cm.

Gudaha Digital anteeno DVB-T2 gacmahooda oo xidhiidh la leh ku biirin iyo shaabadeeyey xabagta, halkaas oo barta of xiriir lagu talinayaa in la dhigay qaab adag on size ee wadajirka ah. Haddii qalabka waa in aad iskaaga u noqon oo waxaa dhab go'an in hawlgalka, laakiin kala iibsiga looma baahna, ka dibna dhismeedka ma. qalab loo habeeyey ee noocan ah si fudud u qabsada signalada digital in line toos ah hortiisa ku jiray munaaraddii TV ka fogaan ah 10 km ee rakibaadda dibadda.

Isticmaalka "Polish" antenna

"Polish" saxan ay magaca helay inta lagu jiro waqtiga Midowgii Soofiyeeti ee hore sida qalab lagu kalsoonaan karo, waayo helo signalada telefishan Soviet iyo sidoo kale kanaalada kala duwan UHF ah. Qaadashada baahinta dijitaalka waxay ficil ahaan fulin sababtoo ah tayada yar. Taageerayaasha Qaar ka mid ah isku dayayaan in ay keeni design kahyraadka by yaraynta whiskers decimeter dheer iyo ka saarista ee iftiinta ah. isbedelka noocan oo kale ah, mararka qaarkood kuu ogolaanayaa inaad la qabsato image ee qaab digital, laakiin hadlo ah natiijada lagu kalsoonaan karo balan qaadayo ma noqon karo. Isagoo ka hadlayay on alaabtii Polish, waxaan la soco karo hawlgal tayo of kordhiyo, taas oo si fiican u shaqeeya la signal a digital.

nooca anteeno "square"

Tani indoor antenna DVB-T2, la dhigtay inuu gacmihiisa, waa nuqul modified of design caadiga ah, oo loo yaqaan magaca "saddex god", taas oo ay jiraan lix qaybood oo la siiyo transformer tallaabadaas. antenna oo macmal ah oo ah nooca la channels kalsooni soo dhaweynta ee format digital fogaan ah 10 km in xariiq toosan, waayo masaafo dheer loo baahan yahay awood signal qabsanayo.

design anteeno waa mid fudud oofiyo. The element ugu weyn ee dhismaha ka kooban yahay ah aluminium Wareegtada cross-qaybta silig iyo xarkaha adag. silig waa wada xodan yihiin lix god oo ku habboon oo aad u qaadidda ka dhigan transformer a hirka sare, marka la isku daro in cable signal iyo DVB-T2-anteeno la kordhiyo ka. Iyada oo gacmahooda qabtaan, kabida, si dhibcood ah, waxay isu bedbeddelaan silig of copper iyo ludyat kabida sameeyey.

cable waxaa ku lifaaqan antenna ah by clamps gaar ah ama siyaabo of cajalad qalabada caadiga ah. Joojinta lagu sameeyaa adigoo taageero ah, iyadoo la isticmaalayo gabal oo qoryo, ama waxyaabo kale. Marka rakibidda gudaha ama dibadda dhismeedka xaaladda ugu weyn waa ganaax-daafigaw noobiyaddii TV. Taas waxa loo sameeyaa iyadoo la isticmaalayo Navigator ah, haddii aanay jirin line hortiisa jihada waxaa loo cayimay in ay soo saaraan saameynta farriin adag.

qalab antenna ee daasadaha biir ah

technology saarta sidii antenna wax ku ool ah waa mid aad u fudud oo u baahan ma xirfadaha gaarka ah.

Iyada oo kaashawiito qaro weyn ama mudac ka dhigi god nidaamsan qoorta of kasta oo ka mid ah laba daasadaha ka dibna xiri galay boolal ah. Cable shishaysa waa lacag la'aan ka silig copper tidcan hagaajiyeen mindi ka VARNISH, ku soo lifaaq hoos boolal furka. Aad Alxan wanaagsan keentay xarunta, laakiin daruuri ma aha.

Digital anteeno DVB-T2 gacmahooda ku dhowaad sameeyey ayaa weli on tareenka diyaar ama tuubo si uu u xaliyo bangiyada, si ay iyaga u dhexeeya masaafada u hartay ee 7.5 cm. Dhamaadka labaad ee cable ku qalabeysan yahay fur caadiga ah, ay oggaadaan unit qadanayo waxa lagu xiraa in signal ugu fiican dhalato goobta. Meelaynta ee noocan ah aalad in wadada ay u baahan tahay ilaalinta lagu kalsoonaan karo ka canaasiirta. Taas waxa loo sameeyaa wax kasta oo biyuhu, inta badan in Dabcan waa dhalooyin caag ah waa kuwo waaweyn. anteeno ayaa kor u helo in 15 channels telefishanka satalaytka iyo baahinta dijitaalka.

Isticmaalka alaabtii oo Faahfaahin

Meel fog ka qaar ka antenna munaarad television awood u helo calaamadaha aan haysan si ay u rakibi qalabka xoojinta dheeraad ah. Waayo, tan iyo yeshee meel fog la Koronto gaar ah kordhiyo la ruxruxo weyn helo signal a. Qalabka wuxuu ka dheregsan dhow tuner ah, iyo unit gorgortanka ka dhigaysa dheeraad ah, lagama maarmaanka u ah wax soo saarka:

• potentiometer ah la qabsado oo faa'iidada;
• Heerka inductors L4 ilqabad leh iyo L3;
• gariiradda L1 iyo L2 waxaa ku dhaawacay on size ee tusaha;
• gaashaan ka samaysan biraha kala wareeggeedii saarka ka soo circuit qalab ah.

Sammeecado dhigay 3 mitir gudahood ka soo bixiyey meeshii anteeno la rakibay DVB-T2 ee cable, xiriirada ay cable antenna ah si ay awoodda ka block gaar helaan. Marka rakibidda antenna dhow ilaa munaaraddii kor warbaahinta, waxaa laguma talinayo in la isticmaalo kordhiyo oo dheeraad ah, sida farriin adag hoos image iyo bixisaa dheeraad ah load elektaroonik ah oo ku saabsan qaab dhismeedka dhan. Talinayo dhererka cable waa saddex mitir, ka badan silig hogaanka in ay dheeliyaan symmetrizer.

Codsiga symmetrizer

qalab Tani waa lagama maarmaan u ah nooc kasta oo anteeno, waxa aanu door, waxaan ka dhigteen in ay warshad ama isweydaarsiga saanacyadii. Anteeno for DVB-T2, la dhigtay inuu gacmihiisa, saarta images tayo fiican leh, haddii xiran tuner ah. Haddii dhererka cable yahay 10 m, qaab-dhismeedka rakibo baxsan iswaafaqla'aan kac meel dibadda ah iyo iska caabin ah ee cable ka. Xaaladdan oo kale, aad rabto in aad isticmaasho beer antenna symmetrizer xal dhamaystiran oo ah, taas oo si weyn u soo hagaagaysa tayada image shaashadda.

iyo kaybalka rakibidda antenna ah

Sharciga muhiimka ah waa in la rakibo anteenada ee dhererkiisa. Haddii ay taasi ma la samayn karaa qol, waxaad u baahan tahay inaad ka guurto qalabka si derbi dibedda ah. Si aad u rakibi antenna ee dhismo gaar ah oo warbaahinta a digital ka shaqeeya tiirsan height of qalab 10 mitir. Haddii antenna ku yaal dabaqa koowaad ee guriga, ka dibna isagoo dhismeedka macdan dhow, walxaha warshadaha keeni nabaad ee soo dhaweynta.

Marka Positioning antenna ku hoos Cirkana dhismo ama saqafka fiiro lacagta guriga si wax saqafka - waxaa waa in aanay ka kooban daahan metallized ama ku xereen ka kooban. Birta, jiingado, bireed bir ama ningax bandhig faragelin weyn u soo dhoweynta ee signalada telefishan digital.

Waayo, anteenooyinkooda dhaweynta sare u amro on daqal biraha ama pin waxaa ka mid ah size core bir ah aan ka yarayn hal mitir, taas oo ku xiran silig grounding ah. unit The, oo ku yaalla saqafka, waxaa ka mid ah dhulka guud a nidaamka guriga.

cable The aan la saaray via qiiqa iyo hawada laga shido, ha dhigin on the fiilooyinka korontada ee hadda jira, xataa haddii ay u muuqdaan in ay ka badan ammaan ah. Godad ku yaala darbiyada laabto ah, si ay qoyaanka ka jidka ama galaa qolka, isticmaali gelanayo gaar ah oo waa laga helaa. Haddii anteeno la jabiyey iyo si sax ah lagu sameeyo, waxay qaadan cable oo derbigii oo tayo sare leh saldhigyadii, sababtoo ah markii uu kaalinta derbiyada waa adag tahay in la bedeli cable derbiga galay kuna bedesho badan oo lagu kalsoonaan karo.

Compliance leh ammaanka inta lagu guda jiro shirka of antenna ah

Ka hor inta ku rakibidda ama taabato mar hore antenna on top Jaha, hubi in howlgalkan uu yahay ammaan,

• Ha fuulin on dhismeedka go'an miskiinka iyo gariir, haddii shaqada-sare sare la xiriira halista, hubi inuu xidho suunka sii kordhaya oo ku lifaaq qayb ka go'an qaabka dhismaha,
• Lama oggola in la qabto dhamaadka ee suunka sii kordhaya ku xigeenka oo aan amniga ka hor, markii shaqaalaha dhacaya ma qabanayo in gacmaha miisaanka jidhka;
• Ha fuulin on height oo keliya, naqshado midda, saqafka jir socon, tallaabo on meesha dharkiisa xira;
• Ha rakibi antenna ee roobka iyo ceeryaan.

Gebogebadii, waa fudud si aad aqbalana u gaar ah si ay u daawadaan telefishanka digital. DVB-T2 - anteeno, la dhigtay inuu gacmihiisa - tayada (haddii aad raacdo technology saxda ah) waa ku dhawaad liito innaba in ay ku kaydiso-iibsaday dhigooda. Qiimaha qalabka caawin doonaa si loo badbaadiyo qadar hufan oo lacag ah, taas oo muhiim u ah dadka qaar.