I-antenna yangaphandle-umkhiqizo ngumkhiqizo abantu abasebenzisa ukuthola izimpawu ezingaphezu kwe-air kusuka eziteshini ze-TV ezisakaza. Ukuze usebenzise i-antenna, ithelevishini yakho kufanele ibe ne- tuner eyakhelwe ngaphakathi noma kufanele ube ne-tuner yangaphandle exhunywe ku-antenna nangethelevishini.
I-Digital noma i-HD Antennas
Ayikho into efana ne-antenna yencazelo ephezulu noma ephezulu. I- Federal Communications Commission (FCC) ithi noma ubani ophethe i-antenna ekwazi ukuthola izibonakaliso ze-analog kufanele akwazi ukusebenzisa le-antenna efanayo ukuthola ama-digital signals.
Ngenxa yalokho, kuphakanyiswa ukuba uzame ukusebenzisa i-antenna yakho endala ngaphambi kokuthenga i-antenna entsha edayiswe nge- HD yokwamukelwa . Uma ngabe i-antenna yakho yamanje ayisebenziyo ungase udinge eyodwa ngokukhulisa, okusiza i-antenna ithathe isignali engcono.
I-Amplified Antennas
Ama-antennas amplified angandisa ugesi amandla okuthola isignali ebuthakathaka. Lezi zintensi zihle kakhulu kubantu abahlala ezindaweni zasemaphandleni ngoba isignali engenayo ingadinga ukukhuthazwa.
"Amplification nayo iyadingeka ezimweni lapho kukhona khona ikhebula elide noma ama-splitters ambalwa phakathi kwe-antenna ne- TV ," kusho uRon Morgan, umhlaziyi wezobuchwepheshe e-Channel Master. "Ukwandisa amandla wesignali ukukhetha okukhethwa kukho kwe-antenna kuyisihluthulelo. Uma uqala nge-antenna engalungile, uzobe ulwa nempi ehlulekayo. "
Indlu v. Antenna yangaphandle
Omunye angase athi i- antenna engama-$ 20 yasendlini isebenza kanye ne -model $ 100 yokubeka uphahla . Konke kuncike lapho umuntu ehlala khona ngokubambisana namandla esignali avela emibhoshongweni ye-TV.
Ngokusho kwe-Antenna Web, isayithi elaphethwe yi-Consumer Electronics Association, ukukhethwa okuhle kwe-antenna akuyona nje kuphela okususelwe kude esiteshini sokudlulisa. Ibuye isekelwe ekufaniseni ngokunembile izimo zesignali bese ukhetha i-antenna esebenza kuleso simo.
01 ka-06
UHF neVHF
I-Antennas ingaphakathi noma ngaphandle. Ngaphakathi, lokhu kusho ukuthi i-antenna ingaphakathi kwendawo yokuhlala. Njengalokhu, ama-antenna angaphandle azokhuphuka ophahleni, eceleni kohlala noma e-attic.
Zombili izinhlobo ze-antenna ikhono lokuthola isignali enhle zithembele kude ukusuka embhoshongweni wokudlulisela kanye nanoma yiziphi izithiyo eziphakathi kwe-antenna nombhoshongo. Ama-antenna angaphandle ngokuvamile anamandla kunama-antenna angaphakathi ukuze ngokuvamile athembeke kakhulu.
UHF neVHF
Ama-antenna amaningi azothola i-UHF, i-VHF noma zombili izinhlobo zempawu. I-UHF ne-VHF ifana ne- AM ne-FM emsakazweni . Ngakho-ke, kubalulekile ukukhetha i-antenna ehlangabezana nezidingo zakho. Uma ufisa isiteshi 8 khona-ke ungathanda ukuthola i-antenna ethola i-VHF. Okufanayo kuzoba yiqiniso ku-UHF nomzila 27.
I-Federal Communications Commission ithi i-VHF band iphakathi kweziteshi 2 no-13, noma ama-frequency 54 - 216 Mhz . Izimpawu ze-UHF zimboza iziteshi ezingu-14 kuya kwezingu-83, noma ama-frequency 300 - 3,000 Mhz, nakuba izinombolo eziphakeme ziye zabe zizobekwa kabusha ngokushintshwa kwedijithali.
Kukhona ukungaqondi okuvamile ukuthi zonke izibonakaliso zedijithali noma eziphezulu ziwela ngaphansi kwe-bandwidth ye-UHF. Ngenkathi i-UHF ingaqukatha izimbonakaliso eziningi zedijithali, kunezibonakaliso zedijithali nezincazelo eziphezulu ku-VHF band. Yingakho sincoma ukusebenzisa ithuluzi lokukhethwa kwe-antenna ku-AntennaWeb.org.
I-Antenna Web
I-Antenna Web isebenza yi-Consumer Electronics Association. Isayithi laklanyelwe ukusiza abantu bathole i-antenna engcono kakhulu endaweni yabo ngokususelwa ekhelini labo lase-United States kanye / noma ikhodi ye-zip. Okukuphela kwezinto ukuthi i-Antenna Web izogqugquzela kuphela ama-antenna angaphandle kwendawo yakho. Ngakho-ke, kuzodingeka uqhathanise izincomo zangaphandle ze-antenna nalokho okutholakalayo kumodeli wangaphakathi.
02 ka 06
I-Antennas yasekhaya
Kubalulekile ukucabangela ibanga elivela embhoshongweni wokudlulisela kanye nanoma yiziphi izithiyo eziphakathi kwe-antenna nombhoshongo. Lezi zinto ziphinde zithinte ama-antenna angaphandle, kodwa kubaluleke nakakhulu ukunaka le mininingwane ngoba ama-antenna angaphakathi alinganiswa ngokulinganayo yi-Consumer Electronics Association.
Ibanga ukusuka Ekuthumeni Tower
Ayikho i-mileage ethize ekhomba ukuthi i-antenna yangaphakathi izokusebenzela. Uma uhlala ngaphakathi kwemingcele yomuzi noma mhlawumbe amadolobha esiteshini sethelevishini khona-ke uzokwazi ukusebenzisa i-antenna yangaphakathi.
- Isimo: Ngiphila emakethe ephakathi nendawo futhi ngisebenzisa i-antenna yangaphakathi. Ngithola zonke iziteshi zokusakazwa ze-OTA ngencazelo ephezulu yedijithali ne-analog ngaphandle kokukhipha i-NBC, eshaya noma engaphuthelwa ngesignali.
Izithiyo Phakathi kwe-Antenna ne-Transmission Tower
Izithiyo zingaba yizintaba, amagquma, izakhiwo, izindonga, izivalo, abantu abahamba phambi kwe-antenna, njll. Lokhu kudala ukuhlukumezeka ngezimpawu ze-TV futhi kuthinte ukuthembeka kokuthola isignali.
- Isimo: Ukwamukelwa kwesiteshi samanje se-NBC sishaywa noma siphuthelwa. Kodwa, ngaphawula ukuthi uma ngilungisa 'izindlebe zogwaja' ngokulungile, thola izimo ezifanele zomoya bese uvula umnyango wangaphambili noma uphuphuthekisa, bese kungena ngaphandle kokukhishwa. Umnyango nokuphuphuthekisa kungabhekwa njengezingqinamba ekwamukeleni kwami. Kanti futhi, ukukhipha iminyango ngaphakathi nokuphuma eziteshini eziningi uma othile ehamba phambi kwe-antenna.
Ngakho-ke, uma uqhathanisa nezindlu zangaphakathi nama-antenna angaphandle, ama-antenna angaphakathi ajwayelekile:
- Yiba nesigaba esifushane sokuthola
- Faka lula
- Izindleko ezingaphansi
03 ka 06
Uhlelo lwe-Antenna lwe-Indoor Rating
Ama-antenna angaphakathi alinganiswa okufanayo yi-Consumer Electronics Association (CEA) kodwa lokho akusho ukuthi bonke benza okufanayo. Lokhu kungenxa yokuthi ukwamukela ngaphakathi endlini kungavumelani.
Ngakho-ke, uma i-antenna yangaphakathi ivunyelwe ukusetshenziswa kwabathengi yi-CEA kufanele ubheke i-CEA checkmark logo emaphaketheni womkhiqizo ukuthi i-CEA's disclaimer ithi i-antenna "ihlangana noma idlulele imininingwane ye-CEA yokusebenza ngama-antenna angaphakathi."
Ingabe i-Antenna yangaphakathi iyokusebenzela?
I-antenna yangaphakathi ingasebenza kuwe. Kodwa qaphela lapho uthenga i-antenna yangaphakathi ngoba kungenzeka ingasithathi zonke iziteshi endaweni yakho noma ingadinga ukulungiswa njalo ngokuya ngesiteshi esifunayo.
Iseluleko sethu ukuya ku-AntennaWeb.org ukuze ubone ukuthi iyiphi i-antenna yangaphandle ayincoma ikheli lakho. Khona-ke ungakwazi ukuqhathanisa izincomo zangaphandle ze-antenna nalokho okutholakala kumodeli wangaphakathi noma okungenani uthole umqondo wokuthi imibhoshongo yokudlulisela ikhona kuphi uma kuqhathaniswa nokuhlala kwakho. Lokhu kufanele kukusize unqume ukuthi imodeli yangaphakathi ikulungele yini.
04 ka 06
I-Antenna yangaphandle nesistimu yokulinganisa
Ama-antenna angaphandle yimikhiqizo oyifakayo ophahleni lwakho, esiteji esincane noma eceleni kohlala kuyo. Ama-antenna angaphandle aphuma ezinhlobonhlobo ezimbili, eziqondisayo kanye neziqondiso eziningi.
Ama-antenna okuqondisa kufanele akhombe embhoshongweni wokudlulisela ukuthola isignali ngenkathi ama-antenna amaningi aqondiswayo angathola izibonakaliso uma engabhekiseli embhoshongweni wokudlulisela. Leli phuzu lokukhumbula uma ukhetha i-antenna ngoba uma ukhetha i-antenna eqondisayo futhi udinga ukuqondisa okuningi ngeke ukwazi ukuthola iziteshi.
Uhlelo lwangaphandle lwe-Antenna Rating
Ama-Antenna Web amanani ama-antenna angaphandle anesimiso sokulinganisa umbala esingu-6. Lezi zilinganiso kufanele zivele ngaphandle komkhiqizo ovunyelwe yi-CEA:
- Okuphuzi - Ukuqondisa Okuncane Okuncane
- I-Green - Medium Multi-directional
- Ukukhanya okukhanyayo - Okukhulu okuqondisa okuningi noma oku-Multi-direction directional nge pre-amp
- I-Red - Medium Directional
- I-Blue - Medium Directional ne-pre-amp
- I-Purple - I-Large Directional ne-pre-amp
Imibala iklanyelwe ukusiza ukhethe i-antenna ngaphandle kokuqhathanisa ukucaciswa phakathi kwamamodeli. Ngamanye amazwi, ama-antenna aqoshiwe aphuzi kufanele enze ngokuvumelana njalo. Okufanayo kuqinisile ngokuhlaza, okwesibhakabhaka, njll.
Ukukhetha i-Outdoor Antenna
Iseluleko sethu ukuya ku-AntennaWeb.org ukuze ubone ukuthi yiluphi uhlobo lwe-antenna abakhuthazayo ekhelini lakho eliqondile. Isayithi laklanyelwe ukusiza abantu bathole i-antenna engcono kakhulu endaweni yabo ngokususelwa ekhelini labo lase-United States kanye / noma ikhodi ye-zip.
I-Antenna Web izocoma kuphela ama-antenna angaphandle kwendawo yakho.
05 ka 06
Imiyalo ekusebenziseni i-Antenna Web
I-Antenna Web yenza ngempela ukukhetha i-antenna yangaphandle ngaphakathi kwe-United States kulula kakhulu. Kungaba usizo nakakhulu uma uhlala endaweni enqamula i-USA uma nje usebenzisa ikhodi ye-zip yase-USA.
Isinyathelo-ngesinyathelo ku-AntennaWeb.org
Le nqubo ilula:
Kufanele ufake i-imeyili yakho bese uphawula amabhokisi okuxhumana naye esikhathini esizayo uma ungafuni ukuthola ulwazi lwe-elektroniki kusuka ku-CEA.
Ukubuyekeza imiphumela yakho
Emva kokuchofoza inkinobho yokuhambisa, uzoqondiswa kukhasi lemiphumela. Leli khasi lizobonisa uhlu lwezinhlobo ze-antenna neziteshi ezithathwe endaweni yakho ngalelo hlobo lwe-antenna. Unenketho yokuhlunga yizo zonke iziteshi zedijithali noma ze-analog kuphela. Sincoma ukuhlunga nge-digital ngoba lokhu kuyikusasa lokuthola i-antenna.
Uhlu lwe-antenna lunezinkambu ezithile ezibalulekile zokubukeza, njengokufana kwesabelo esiteshini (isiteshi) nokuhamba ngekhampasi, okuyisiqondiso esihle kakhulu sokukhomba i-antenna yakho ukuthola leso siteshi esithile. Ungabuka futhi ibalazwe lekheli lakho elibonisa izikhombisi-ndlela ukuze ukhombe ama-antenna.
Uma usuwazi ukuthi uluphi uhlobo lwe-antenna oyidingayo, hlola emuva ezinye izincomo kuma-antenna angaphakathi nangaphandle.
I-CEA
I-CEA ithi uhlu lweziteshi ezitholiwe luyalondolozwa futhi "ngokuya ngokucacile kokufakwa kwakho, ungase ukwazi ukuthola iziteshi ezingabonakali kulolu hlu."
- Iya ku-www.antennaweb.org
- Chofoza inkinobho 'khetha inkinobho'
- Gcwalisa ifomu elifushane: Inkundla edingekayo kuphela okumele uyiqede i-zip code kodwa ifomu linamasimu ozikhethela ukufaka igama lakho, ikheli, i-imeyili, nenombolo yocingo. Ngombono, uzothola umbiko ongcono ngokufaka ulwazi lwekheli lakho.
- Phendula umbuzo mayelana nezithiyo endaweni yakho.
- Khetha uhlobo lwezindlu ukuze uthole imiphumela emihle kakhulu.
- Chofoza inkinobho yokuhambisa.
06 ka-06
Izinzuzo Zokusebenzisa i-Antenna
I-antenna inganikeza isevisi kunoma ubani. Ngisho noma ubhalisela i-satellite, ungasebenzisa futhi i-antenna ukuthola iziteshi zokusakaza zendawo.
Izinzuzo zokusebenzisa i-antenna zihlanganisa ukungabikho ukukhokhela insizakalo ye-premium ephezulu, nokwamukela isignali ethembekile ngesikhathi sokuduma kwezulu. Lezi zibonelo ezimbalwa nje zalokho i-antenna engakwenzela yona. Ngempela, izinzuzo yizo ozenza kuzo.
Ukuhlela
Ngokusebenzisa i-antenna uthola ukufinyelela kokusakazwa kwamahhala we-analog ne-digital (i-HD) esiteshini samahhala esiteshini sakho se-TV, nakuba ukufinyelela ku-analog kwaphela ngo-February 17, 2009. Enye inzuzo ukuthi kwezinye izimakethe ungase ukwazi ukuthola iziteshi zendawo ezingekho 's unikezwe umhlinzeki wakho wekhebula / satellite . Noma, ungase uthole ngaphandle kweziteshi zemakethe ezivela edolobheni eliseduze noma edolobheni.
Ukuba nokuthula
I-antenna ingakunika ukuvikeleka ukwazi ukuthi ufinyelele kuhlelo uma ikhebula lakho noma i-satellite yokwamukela ihluleka.
Ezezimali
Ukuthola izimpawu ezingaphezu kwe-air mahhala, okusho ukuthi akudingeki ubhalisele ikhebula lakho lekhebula noma i-HD yomhlinzeki we-HD ukuze ubuke iziteshi zendawo kudijithali noma incazelo ephakeme.