TV pūihi: he tirohanga whānui

I tēnei wā, kua kotahi atu ranei televisions katoa kāinga. Hoki te whakahaere o tohu pouaka whakaata päpäho e hiahia ana te pūihi. He maha ngā momo o ngā pūrere te whiwhi. E wehea ratou rite ki whakaaro, momo o te tohu riro, te āhua, te rahi, me te pera i runga i. Ka mahi i te kaupapa o to tatou aparauraa i teie mahana rite te fariiraa i Antennas pouaka whakaata.

fehangahangai takitaha o tatou i roto i to tatou oraraa i roto i te kotahi ara ranei tetahi ki enei whakaaro. Ko te pūihi TV ko te hanganga whakarewa, te tikanga hanga o te konumohe, mo te fariiraa i te tohu irirangi. Tei runga i te momo o te whānuitanga pouaka whakaata riro, kua wehea ratou ki te mita me tehimita pūrere. Ratou wahi o te pae tāutanga i runga i te ruma me te whakamahi waho. Na roto i te ohi i te tikanga o te pouaka whakaata tohu pūihi kia kaha hāngū ranei.

A feruri i te momo matua o farii:

1. Dipole vibrator wahia ranei. Ko ratou hauwhā-poipoi, hawhe-poipoi, me te poipoi. hāngai te whakamutunga ki te roa o te vibrator roangaru o te tohu riro e te; i te hawhe-poipoi - hawhe o te tohu; a, aua, i hauwhā - hauwhā. Y dipole parenga ia āhuatanga he 300 ohms, i roto i te tikanga ki te au maite ki te taura TV pūihi me te kaiwhiwhi i roto i ngā āhuatanga runaruna maha whakamahi i te ōrite koropiko hawhe-poipoi. Hoki aerials taura pouaka whakaata katoa hekenga he parenga ia āhuatanga o 75 ohms. Dipole, i roto i te meka, he he pūihi ruma tairitenga.

2. TV-pūihi "hongere poipoi" momo e taea e: e rua-wahi, e toru-wahi, quintuple, semielementnoy, odinnadtsatielementnoy me shestnadtsatielementnoy. Kopa dipole anake e kore e whakamahia, ko reira he huānga kaha o tenei momo o Antennas. Pūihi "hongere poipoi" ngā o te pūmotu hohe (vibrator te nuinga koropiko), a eke āhuatanga hāngū, whakaata me te kaiwhakahaere i runga i te ringa noa. Kaiwhakahaere - he dipole hāngū, kei roto i mua o te huānga aia. Whakaata - he vibrator kei muri te hohe. I roto i tenei momo o Antennas, i reira he kotahi ngoikoretanga ki te tua o ngā āhuatanga hāngū ki te vibrator poipoi heke te parenga ia tāuru o te pūihi. He noa i roto i ngā pūrere hihiani me te kōrero reo irirangi farii o tenei momo.

3. He pouaka whakaata pūihi roko-wā ko te pūrere aunui, whakarato tohu fariiraa i roto i te awhe auau (ngaru UHF me te mita). Te awhe mahi he ōrite paetahi o te pūihi me te pūwhāngai, ai tonu te taonga tamau o.

4. Anga pūihi pouaka hangaia ki te farii i tohu i roto i te wā i reira taea ki te whakarato te kounga tohu pai te pūihi "yağı" ko. E rua Tōtoru te tapawha ranei. Pūrere o tenei momo fakatahai taonga nui, me te tapatahi o te hoahoa, e kore e rapu whakarerekētanga.

5. Ko te wāhanga i roto i-kupenga ko te pūnaha Anga matatini arā, o Antennas hoputika e kua wehea i roto i te wāhi, kei te whakaritea e ratou kia e te wāhanga o te tohu he rite katoa. Tikanga, kua huihui ratou i Antennas ōrite tikanga i roto i te plurality o rarangi, me hono ki te kōwae hiko. farii noa-aratau he TV pūihi ki te tīwerawera.

I roto i te mutunga, mea tatou e ki te kōwhiringa pūihi kia whakatata takitahi, i runga i ngā āhuatanga matawhenua rohe i runga i te pae tāuta me te hua e hiahiatia ana rānei.