Ithelevishini antenna yokwenziwa: ukubuyekezwa, izincazelo, izincazelo kanye nokubuyekezwa

Ukusakaza reception nge antenna ngokwendabuko ezingabizi kakhulu ukusakaza indlela isignali ithelevishini. Ngisho ngokumelene isizinda kwathatha ukudluliswa digital amadivayisi ajwayelekile qinani lokuhambisana. Emakethe umsakazo ungathola antenna ngetinhloso letehlukene, ikhumbula ezicashile ukufakwa kanye nokusebenza. Kumele kuqashelwe ukuthi le ngxenye ivezwa kahle abakhiqizi Russian imishini, futhi sithinta slide intengo. Naphezu ukufika ukufaka zobuchwepheshe ngaphezulu namanje ziphoqa Antenna TV yokwenziwa, inzuzo, okufanele kubandakanye nokwethenjelwa kalula abebeziphilisa ngako. Yiqiniso, zikhona yokuntula sobala amadivayisi ezinjalo, kodwa kwezinye izimo kungenzeka bakwemukele nabo.

Yini ekhethekile ngale antenna yokwenziwa?

Umehluko omkhulu phakathi onobuhle yokwenziwa ngukutsi angadingi uxhumano kagesi. Ukuze umsebenzisi lokhu kusho akukho kungenzeka yokuxhuma yokugcizelela adaptha. Ngakho, ekwakhiweni izitshalo okunjalo akukhona transistors, izigqebhezi zokudlala noma ezinye izingxenye e-elekthronikhi electronics. Ngakho-ke, olungisiswayo kokuphetha ngokuthi antenna nemphambosi yekwentiwa kangcono ukubhekana ngokuphumelelayo imisebenzi endabeni ethile? Kubalulekile ukuqaphela ukuthi khona izakhi asebenzayo ekuklanyweni ivumela reception isibonakaliso kwezimo ezinzima kakhulu, okungukuthi ngenxa ukuqinisa ezengeziwe.

Kodwa kukhona embi ngalo e leso sinqumo. Iqiniso liwukuthi ukuntuleka electronics aqede imodeli lesilinganiselwa isiphazamiso ejwayelekile futhi umsindo, okuyinto kuthuthukisa izinga reception. Ngaphandle akunakwenzeka ukukhuluma mayelana sokungabi nhlobo yokugcizelela ikhono imishini, elingenalo adapters ekhethekile. I-geometry isakhiwo, okuyinto abe-antenna yokwenziwa, ekuqaleni uholwe ezimele reception. Enye into ukuthi akwanele yalezi amakhono njalo ukusevisa imishini esiteshini akude ngu zikusakaza izindawo.

Izici Main antenna yokwenziwa

Njengoba imisinga izici eziyinhloko kuyinzuzo somthengi, ulinganiswa decibel angu. Njengoba sekushiwo, imodeli yokwenziwa ulahlekelwe kule inkomba Nokho, nozakwabo asebenzayo, exclusion ukuphazamiseka ivala isikhala le nkinga. Ngokuvamile, antenna yokwenziwa (TB) uhlinzeke inzuzo uhla 12-20 dB. Yilokho ngokwanele, uma uhlose ukuthola umbhoshongo Ukusabalala ndawo, isiginali Ukhuthaza. Futhi ihlangabezane oyisibonelo Coefficient ezingaphezu kwezingu-30 dB, kodwa namadivayisi enjalo kumelwe siqaphele ngoba alolu ngaphezulu ejwayelekile amadivayisi asebenzayo. Phela, lo isici esibalulekile iyona amayunithi yekwentiwa kanye nenani izingxenye ukusebenza isakhiwo. It kuncike kubo ikhono siqu antenna sika ukuthuthukisa reception ngaphandle elekthroniki.

zasendlini zasemoyeni

Models Indoor ekuqaleni lwenzelwe isiginali ye-TV owaziwayo kanye isiqiniseko. Kumele baqonde ukuthi ngisho amadivayisi asebenzayo musa njalo sibhekane ngokuphumelelayo ukuhlinzeka izinga isibonisi egumbini, ngakho kukhethwa antenna yokwenziwa ukusetshenziswa zasendlini kufanele wasondela ngokucophelela. Kodwa uma repeater itholakala endaweni Ukusabalala ke le ndlela kuyozuzisa ngenxa yezizathu eziningana. Okokuqala, i-antenna angaphakathi yokwenziwa isidingo ukwenza ukufakwa liner ophahleni ikhebula eside. Okwesibili, onobuhle ezifana kungase kushintshwe ukuqondisa ukufinyeleleka ngokusebenzisa "amadevu" ekhethekile. Kodwa, futhi, ukuhlinzeka eliphezulu "isithombe" kungenzeka kuphela uma isignali ezifanele kusukela embhoshongweni ukusakaza.

Amamodeli izimoto

Yedivayisi izimoto ngokuvamile usebenza isimiso esifanayo njengoba ithelevishini abamukelayo ezivamile. Ikakhulu, i-antenna yokwenziwa izimoto libuye ukusebenza amaza omsakazo yasendle kagesi, kodwa abese ithumela kuso noma zingasebenzi emsakazweni. I ukushayela isignali isimo ukuzinza kubalulekile, ukufuneka kakhulu ngakho imodeli asebenzayo. Kodwa ezakhiwe yokwenziwa lokhu kunobuhle obuthile, isibonelo, zingabantu ovelele hhayi kuphela lula ukusetshenziswa kanye nosayizi icwecwe, kodwa futhi sensitivity high.

Kukhona eminye imininingwane ukusebenza amadivayisi ezinjalo. Kubalulekile ukukhumbula ukuthi yokwenziwa antenna imoto kusala sangaphandle, ngakho-ke kumele avikelwe ekulimaleni lokukhanda. Lokhu ngokuyinhloko lihlobene ilungiselelo telescopic wokudonsa phandle.

I-antenna yangaphandle

Kusukela iphuzu Ngenxa izinga reception ukhetho best. Endabeni onobuhle emgwaqweni akudingeki ukucabanga mayelana ukuphazamiseka third-party, njengoba design ibalwa yokwamukela imiphumela yesikhathi eside ezayo. Nokho, ukuphazamiseka okubeka obala eduze indawo kodwa okumele kubhekwane nazo. Njengomthetho, ngaphandle antenna yokwenziwa has a usayizi omkhulu futhi izakhi eziningi emikhakheni umklamo. Lezi zimfanelo uvumele abamukelayo ezinjalo sokuqhuba amabanga amade ukusuka yesimanjemanje. Kodwa ukukhokhela lezi zinzuzo kuyodingeka isidingo ukukhwezwa ophahleni. I-antenna kufanele aqiniswe eqondiswa umoya futhi kwezulu ayikwazanga ukuphazamisa umsebenzi walo. Ngaphezu kwalokho, le ntambo edingekayo kufinyeta. Uma emzini womzalwane noma cottage, izinkinga obukhethekile ngeke kwenzeke, kodwa eliphezulu liphumele akuzona izakhiwo angakwenza ngaphandle izintambo eziningi-coaxial.

Abakhiqizi namanani

onobuhle Classical lama-antenna yokwenziwa esikhiqiza izinkampani ezifana "Locus", "Hang", "Antex" nokunye. D. Iningi ngokuvamile kuba amadivayisi engabizi abiza ruble 300-500. imodeli Igumbi zingathengwa for ruble 200-250. izinguqulo ze-Outdoor kukhona kancane ezibizayo, kodwa ngisho ikhasimende efunwa kakhulu bazokwazi ukuhlangabezana ruble 1000. Izithuthi antenna yokwenziwa ekhiqizwa ngaphansi zokuhweba "uziqu-zintathu", "Mystery", "Prolodzhi" et al. Kulokhu, izindleko ongama ngoba abakhiqizi umphelelisi imodeli ne izesekeli ezengeziwe. Ngokwesilinganiso, amanani entengo Ukuthinta lolo luthi kuyinto ruble 1000-1500.

Izibuyekezo ezinhle mayelana antenna yokwenziwa

Phakathi izinzuzo main eziphawula abasebenzisi antenna yokwenziwa ukunikeza ukufakwa lula, asikho isidingo uxhumano zikagesi futhi enokwethenjelwa. Design Simple ezimweni yokusebenza elilungile kungaqinisekisa reception okuhle nokupha "isithombe" ngaphandle kokuphazanyiswa ezingadingekile ukuthi isono imodeli asebenzayo. Futhi, eziningi ziye zaphawula ukuthi antenna yokwenziwa ikusebenzele kangcono ngaphansi kwezimo isimo sezulu esibi kunalokho okunye. umklamo eqinile ngaphandle electronics engadingekile kuyinto irisidi esitebeleni nokuvikelwa emathonyeni angaphandle.

Izibuyekezo ezingezinhle

Njengoba umkhuba ubonisa, zonke izinzuzo imishini yokwenziwa ziyancipha zero uma transponder akayinekezi isignali ezingeni elifanele. Amalungu waphawula ukwencika zinsizakuphila izinga lendawo TV umbhoshongo. Ikakhulukazi eziyinkinga kulesi sici antenna yokwenziwa, eyenzelwe ukufakwa egumbini. Wona kanye umqondo welithi izitshalo abanjalo kudinga usayizi encane, ngakho umsebenzi lincishisiwe kanye nokuqinisa indlela enhle isakhiwo. Ngenxa yalesi sizathu, ukusetshenziswa zasendlini, ochwepheshe batusa basabiza imodeli asebenzayo, olusekela umsebenzi amandla supply.

isiphetho

I-antenna yokwenziwa ngokohlaka iyunithi, ngakho eziningi ekhaya master ingena esikhundleni izinto zalo ngakwesokunene ngesimo metal izingxenye. Kwezinye izimo, futhi uzuze imiphumela emihle kakhulu ngesikhathi sekulingisa lamadivayisi. Nokho, ngisho noma ukuqaliswa afanele ingxenye kwesakhiwo akuyona kuzo zonke izimo, ungalindela ukuthola umphumela kulindeleke. Iqiniso ukuthi yokwenziwa antenna ithelevishini has isici esisodwa esibalulekile kuwo wonke lula eklanywe ngokuhlakanipha ngayo. Lokhu impedance ezifanayo ukusebenza ngekhebula, okwenza ubuhle reception nemingcele. Ngaphezu kwalokho, umnikazi we-antenna ifektri bangathembela ukuqaliswa ukhululekile futhi efanele ongakhetha design. Ngenxa yalokho, umthethonqubo olinganiselayo izingxenye obusebenzayo bangathembela hhayi kuphela eliphezulu isiginali ye-TV reception, kodwa futhi ukusebenza band Umsakazo. Ukuze sifinyelele izinga efanayo ngosizo amathuluzi atholakalayo cishe kungenakwenzeka.