I-antenna yasendlini yethelevishini yedijithali: imibandela yokukhetha namamodeli angcono kakhulu

Kusukela ngo-2019, ithelevishini yaseRussia isishintshele ekusakazeni kwedijithali. Ikhwalithi yesithombe iba ngcono, kodwa ayibandakanyi ukwehluleka. Ngaphezu kwebhokisi elihle le
-digital set-top box , uzodinga ukuthenga uthi oluzovimbela izinkinga. Izakhamuzi zamafulethi edolobha kufanele zikhethe i-antenna yasendlini yethelevishini yedijithali, efakwe ngaphakathi endlini.

Izinhlobo zezinti zasendlini ze-TV yedijithali

Isamukeli sesignali ye-TV yasendlini sinikezwe isici kuphela sokuthi sifakwe ngaphakathi endlini. Amamodeli ahlukene anezilinganiso zamandla ahlukene: lapho lesi silinganiso siphansi, kusho ukuthi i-antenna kufanele ibekwe eduze kwe-TV. Kunezinhlobo ezimbalwa zezamukeli zesignali zasendlini:

1. Iyasebenza. I-antenna yasendlini ye-TV yedijithali, ifakwe isikhulisamazwi esikhethekile sokwamukela isignali. Isetshenziswa emakamelweni atholakala kude nombhoshongo, kanye nalapho isignali idinga ukuhlukaniswa ngama-TV amaningana. Inzuzo ukuthi inikwe amandla odongeni, hhayi ku-TV – ngakho-ke, i-antenna enjalo ingafakwa noma yikuphi.
2. Ungenzi lutho. I-antenna evamile ngaphandle kwe-amplifier. Inomklamo okhangayo. Ixhuma ngqo ku-TV. Ububi ukuthi idivayisi ayilungiseleli izinga lesignali, ngokuphambene nalokho, kuzodingeka ufune indawo ekamelweni lapho kungcono khona, futhi ufake i-TV lapho kanye nothi.
3. I-All-wave (hybrid). Yamukela kokubili amaza okusakaza amamitha namadesimitha, okuthi, uma kunesidingo, angashintshwa (asuke kwelinye aye kwelinye).
4. Imitha. I-antenna elula ene-“antennae” yokulungisa. Umklamo wabo ulula, futhi isignali ithathwa kuphela ebangeni eliseduze nombhoshongo.
5. Idesimitha. Inikeza isignali enhle kakhulu ebangeni elingama-30 km.

Indlela yokukhetha – yini okufanele uyibheke lapho ukhetha i-antenna yasendlini “yezinombolo”

Izimpondo ze-TV zedijithali zasendlini azibizi. Izindleko zabo azidluli ama-ruble ayi-1000. Iningi lamamodeli anikezwa ngomklamo wangaphandle othakazelisayo, ngakho-ke abanye bavame ukugxila ngokuyinhloko kulesi sici, bese becabangela izici zobuchwepheshe kuphela. Ukukhetha imodeli efanelekayo, udinga ukunaka lezi zindlela ezilandelayo:

1. Ikhono le-antenna lokwamukela amagagasi e-decimeter (UHF, UHF) ipharamitha eyinhloko okufanele icatshangelwe. Ukusakazwa kwedijithali kwenziwa ngokunembile ebangeni lamadesimitha.
2. Ikhono lokuthola isignali ye -DVB-T2 . Lesi yinkomba yezinga okusakazwa ngalo ithelevishini yedijithali yaseRussia.
3. Amandla esikhulisi . Lo mbandela ukhethwa kucatshangelwa ukuba kude kwegumbi lapho kuzolenga khona uthi lwe-TV esikhungweni sikamabonakude. Lapho iqhubeka, umamukeli kufanele abe namandla kakhulu. Inkomba encane yamandla ngu-30-40 dB.
4. Ukunikezwa kwamandla okungenzi lutho noma okusebenzayo . Esimeni sokuqala, uthi luzoxhunywa ngokuqondile ku-TV futhi luthole ugesi kuyo. Ingokonga futhi inobuhle. Isamukeli sesignali esisebenzayo sinikwa amandla isokhethi ehlukile.
5. Ikhono lokuthatha amagagasi e-FM . Ukusakazwa kwedijithali okujwayelekile kunikeza iziteshi ze-TV ezingama-20 neziteshi zomsakazo ezi-3. Akuwona wonke ama-antenna akwazi ukucosha amaza omsakazo.
6. Ingabe sikhona isikhulisi sesignali esifakiwe ? Lesi sici esihambisanayo sizoba usizo kulabo abahlala emaphethelweni edolobha noma edolobhaneni, lapho amandla esignali ebuthakathaka.

Indlela yokukhetha ilula, into ebaluleke kakhulu ukuhlola kahle ukude kwefulethi lakho kusuka esikhungweni sethelevishini.

Ama-antenna asendlini kamabonakude wedijithali: I-TOP 10 ehamba phambili

Uma unyaka owedlule i-TV yedijithali ibingukukhetha ngokuzithandela kwabanye abasebenzisi kuphela, khona-ke kusukela ngo-2019 umbuso ubophe wonke umuntu ukuthi ashintshele kuyo asuke kwejwayelekile analogu. Ngakho-ke, umbuzo wokukhetha ama-antenna usebenza kakhulu kunangaphambili. Yiziphi izamukeli zokusakaza zedijithali zasendlini okufanele ngizikhethe?

I-REMO BAS-5310USB Horizon

Imodeli engabizi futhi ehlangene ayinakho nje izici zobuchwepheshe ezisezingeni eliphezulu, kodwa futhi ihambisana nomklamo wesimanje ohlakaniphile. I-antenna emnyama emide engunxande iklanywe ngendlela yokuthi ikwazi ukutholakala kalula ku-TV ngaphandle kokudonsa ukunaka. Ipulasitiki eqinile ivikela ngokuthembekile “ukugxusha” ekulimaleni. Uma usetha uthi ngokulungile, luzothatha amashaneli ahlukahlukene kububanzi obusuka ku-21 kuye ku-69.
Imininingwane:

• isisindo – 230 g;
• kufakwe i-adapter ye-volt engu-5;
• inikwa amandla yi-USB;
• ubude bekhebula – 1.2 m;
• ubukhulu: 21x4x2 cm;
• inzuzo – kufika ku-35 dB;
• uhla lokwamukela – kufika ku-20 km;
• umbala omnyama.

https://youtu.be/v-TBZmB8gYw

Izindleko ze-REMO BAS-5310USB Horizon antenna yasendlini ngama-ruble angama-890-900.

I-REMO BAS-5102 Wave-Digital

Lo modeli, ngaphezu komklamo omuhle, unazo zonke izici ezidingekayo futhi ungabizi. Ngenxa yekhebula elide kanye nokuba khona kwesitendi, kulula ukuyibeka kunoma iyiphi indawo eyisicaba ekamelweni.
Imininingwane:

• Umbala omhlophe;
• inzuzo – 24 dB;
• ukwamukela amasignali HDTV – DVB-T, DVB-T2;
• kukhona i-amplifier yesignali;
• VHF / MB ububanzi – 174-230 MHz;
• inzuzo – VHF 20 dB, UHF 25 dB;
• ukumelana – 75 Ohm;
• ubude bekhebula – 1.8 m.

Izindleko ze “REMO BAS-5102 Wave-Digital” – kusuka kuma-ruble angu-700.

Harper ADVB-2120

Le antenna yasendlini iheha ngedizayini yayo yasekuqaleni. Isamukeli sihlangene, kulula ukusibeka eduze ne-TV noma sisilengise kuhhuku. Nakuba iHarper ADVB-2120 manje isisetshenziselwa i-TV yedijithali, isakwazi ukucosha i-analog TV. Ibanga lamafrikhwensi abanjwe ngu-87.5-862 MHz.
Izinto zokusebenza zobuchwepheshe:

• i-amplifier eyakhelwe ngaphakathi;
• ubukhulu: 21x18x7 cm;
• ububanzi bemvamisa ngaphakathi kwe-470-862 MHz;
• ukumelana ku-75 ohms;
• akukho ukunikezwa kwamandla;
• uhla lokusebenza – VHF / UHF / FM.

Izindleko zemishini zizovela kuma-ruble angama-550 kuye kwangama-2000 (kuye ngokuthi iphuzu lokuthengisa).

I-REMO Inter 2.0

Ngokukhetha i-remo Inter 2.0 yasendlini, uzozihlinzeka ngokufinyelela eziteshini zedijithali ezingama-20. Lesi samukeli sesignali sinomsebenzi ohloniphekile. Umklamo wemodeli owethulwe ungowesimanje, futhi ukuqiniswa okuthembekile kuzokuvumela ukuthi ubeke kunoma iyiphi ingxenye yekamelo nge-TV. Yiqiniso, icala lenziwe ngepulasitiki engeyona ikhwalithi engcono kakhulu, ngakho-ke i-antenna kufanele ivikelwe ekulimaleni komshini.
Izinkomba zobuchwepheshe:

• umbala womzimba omhlophe;
• kukhona i-amplifier;
• ukwamukela isignali – wonke amagagasi;
• inzuzo – 42 dB;
• ububanzi bemvamisa – 470-862 MHz.

https://youtu.be/ZAbEw2dJ1L8

Izindleko zedivayisi ziyahlukahluka kusuka kuma-ruble angama-660 kuye kwangama-990.

I-HYUNDAI H-TAI320

Lolu hlobo olusebenzayo lwe-antenna yasendlini luthatha ukusakazwa kwe-TV yedijithali ngamafomethi e-DVB-T kanye ne-DVB-T2. Ukusakaza kanye ne-analog TV nayo ihlinzekwa. I-HYUNDAI H-TAI320 ingasebenzisana nakho kokubili i-digital set-top box kanye ne-TV. Umklamo othakazelisayo wombala omnyama ngeke ulimaze ingaphakathi elizungezile lekamelo.
Imininingwane:

• amapayipi amakhulu, kufakwe ugesi;
• ububanzi bemvamisa – UHF 470-862 MHz kanye ne-VHF 87.5-230 MHz;
• inzuzo – 30 dB;
• isici somsindo esingaphansi kuka-3 dB;
• ubude bekhebula – 1.8 m.

Izindleko zemodeli zisuka kuma-ruble angama-570.

Okukodwa Kwabo Bonke SV9345

Le antenna yasendlini ibiza kakhulu kunezinye. Iyakhanga ngomklamo obude obusesitayeleni kanye nokuba khona kwezici ezengeziwe ngendlela yesihlungi se-4G, isihlungi se-GSM, umsakazo. Izici:

• isisindo – 180 g;
• ubukhulu: 11.3 × 3.3 × 20.0 cm;
• ububanzi befrikhwensi – UHF (UHF), MV (VHF);
• uhlobo lwe-antenna – olusebenzayo;
• Inzuzo ye-MV (VHF) 43 dB;
• Ukuzuza kwe-UHF (UHF) 43 dB;
• ubude bekhebula – 1.5 m;
• ukuphuma kwe-impedance – 75 ohms.

Intengo yomamukeli wegumbi i-One For All SV9345 izosuka kuma-ruble angama-2000.

I-Delta K 132 A

Isamukeli sesignali ye-TV esibukeka silula sifana kakhulu namamodeli aphelelwe yisikhathi wezimpondo ze-analogi – lezo eziklanyelwe ukubekwa kwangaphandle. Igumbi “Delta” lakhelwe ukwamukela izinhlelo ebangeni le-DVM. I-TV yedijithali yasendlini ene-amplifier ebuyisela ukwamukela isignali lapho isignali kukhebula yothi incishisiwe. Imininingwane:

• ubukhulu: 220×336×83 mm;
• ukumelana namagagasi – 75 Ohm;
• amaza okusebenza – 470-790 MHz;
• inzuzo – 25 dB;
• amandla – 5 volts.

Izindleko ze-antenna zizovela kuma-ruble angu-450.

I-Blackmor DVB-T2-711C

Le modeli ingabuye ibekwe ngaphandle. Ithola kokubili i-TV yedijithali ne-analog. Ifakwe kunoma iyiphi ingxenye yegumbi, futhi ukuze yamukeleke kangcono isignali ifakwe ikhono lokujikeleza. Yenziwe ngepulasitiki emnyama eqinile. Izici:

• uhla lwemvamisa yokusebenza 87 – 230 MHz, 470 – 790 MHz;
• zuza kububanzi be-MV – 30 dB;
• inzuzo ebangeni le-UHF – 36 dB;
• ukumelana namagagasi – 75 Ohm;
• 3m ikhebula ifakiwe;
• 12 volt amandla.

Izindleko ze-Blackmor DVB-T2-711C antenna zisuka kuma-ruble angu-1300.

I-REMO BAS-5354-USB Azimuth

Ukulungiswa kwegumbi lohlobo lwamagagasi onke kudala ukusakazwa kwamashaneli okungaphazamiseki ngenxa yesikhulisi esakhelwe ngaphakathi. Inomklamo wangaphandle okhangayo futhi wesimanje ngendlela yonxande omnyama esitendini. Material – ipulasitiki ecwebezelayo. Izici zobuchwepheshe:

• VHF / MB ububanzi – 174-230 MHz;
• UHF / UHF ububanzi – 470-860 MHz;
• Ukuzuza kwe-VHF – 23 dB;
• Ukuzuza kwe-UHF – 33 dB;
• 2m ikhebula;
• i-wave impedance – 75 ohms.

Izindleko zivela kuma-ruble angama-800.

I-DEXP Ellipse 25

Idivayisi yohlobo lwegumbi elincane isekela izinga le-DVB-T2. I-antenna ye-DEXP ifakwe i-amplifier, ukuze ikhwalithi yokwamukela isignali ingancishi. Uhlobo lwe-antenna luyi-oblong, iyindilinga, emnyama enophawu lwenkampani ohlangothini olungaphambili. Izici:

• amasignali athunjiwe: FM, VHF (MV), UHF (UHF);
• Ububanzi be-VHF/MV – 40-230 MHz;
• UHF / UHF ububanzi – 470-860 MHz;
• i-factor factor – kufika ku-25 dB;
• Ikhebula le-USB lifakiwe.

Izindleko zokulungiswa kwegumbi zisuka kuma-ruble ayi-1000.

Uma ukhetha i-antenna yohlobo lwegumbi le-TV yedijithali, udinga ukwenza isiqiniseko sokuthi indawo yakho yokuhlala isendaweni yokusakaza kumabonakude wedijithali kanye nezinga lesiginali lanele kulokhu. Ngisho ne-antenna ebiza kakhulu ayiqinisekisi isignali engu-100% ezindaweni ezikude. Amamodeli abamukeli bamagumbi okuxoxwe ngawo esihlokweni alungele amafulethi edolobha.