Iingcebiso kwi indlela yokwenza eriyali kwi TV

Wonke umntu ufuna ukubukela TV yakho ezikumgangatho ophezulu, kodwa hayi zonke iindawo kunokwenzeka. Kwafa uphawu embi kwindawo ethile ngokubanzi angekhoyo. Ngoko ke, eli nqaku liza kujonga indlela yokwenza eriyali ukuya TV ngezandla zakhe.

Kukho iinketho ezininzi, kodwa kufuneka ukhethe leyo uya kudibana ngokupheleleyo iimfuno zakho.

Ngokomzekelo, ababini sheet metal isiqingatha-ilitha iinkonkxa zingaphendula ufanelwe replacement zokuthenga eriyali. Kodwa kukho kwakhona iqela thabatha. Le antenna iza kusebenza kuphela uluhlu UHF. Ukuze ufumane iindlela ezininzi, kufuna iinkonkxa ilitha-mbini.

ibandla

Kuba ibhanki kuyimfuneko solder kumqhubi iziko - umqondiso ukuya kwelinye - qhina wasikhusela. Emva koko, uwafake ngokusebenzisa ngcina tape ukuya trempelya ezantsi. Kwicala ngasemva isinxibelelanisi eriyali. Ukuze ufumane esemgangathweni umfanekiso onesidima, kufuneka ukunyenyisa umgama phakathi kweenxweme. Ngenxa yoko, ukuba ukwenza njani antenna ekhaya, ilula kakhulu, uyaqonda.

I-eriyali TV kunye dipole esongiweyo kunzima kakhulu ngakumbi, kodwa umgangatho reception uphawu kuyo ngasentla. Oku kuya kufuna ukubala. Ekubeni le ntonga broadband, kufuneka uthathe iindlela ezimbalwa, yaye ngokuxhomekeke kwinkqubo inani, ubungakanani kufuneka ibe ezahlukeneyo.

Ngoku ke kufuneka sifumane indlela yokwenza eriyali ukuya TV kunye ilahleko ubuncinane kunye neendleko.

Kumbhobho omkhulu ngokunjalo, kunye nazo zonke ezinye iindawo kufuneka zenziwe ngobhedu, ubhedu okanye aluminium. kumphezulu wazo ukuze baberhabaxa. dish Steel kuya kuba nzima kakhulu, kwaye reception uphawu yena akuyi kuwushiya esemgangathweni. Ukongeza, iya Rust. Ngapha koko, oko bekumele ukuba ukunyusa esitalatweni.

ubude main ityhubhu kufuneka ube ziimitha ezimbini. Kuyo, ngokusebenzisa ngezikhonkwane-5 mm ubukhulu, ububanzi ityhubhu ezincinci "umlawuli" apha. Umgama phakathi kwabo kufuneka-30 cm. Kuba ibandla akufuneki ukubaqhelisa, ufundise bit sangqa 5-6 mm. Ubude ityhubhu nganye elandelayo ifanele ibe mfutshane-10 cm. Oko kukuthi "uMlawuli" yokuqala, sise esisekweni iya kulingana nama-60 cm, 50 cm, kwaye elandelayo, njl

Kunoko kumlawuli inkulu, kwi siseko ityhubhu iqhotyoshelwe kugqame. Umele isakhiwo "abalawuli" ezintathu enxulumene ngaxeshanye. Ngaphezu koko, lo vibrator imvelaphi inyuselwa khona phezu umbhobho.

Kuba baninzi, uhlala imfihlelo ukuba enze i-eriyali kwi TV yakho ukuze ukuyenza ukukhangela nezamkelekileyo ukukholisa, akuzange kube enkulu yaye kwangaxeshanye uthatha yonke imijelo esele ikhona. Njengoko sele sibonile, kukho isisombululo - i Yagi eriyali kunye dipole esongiweyo.

Siza kuqhubeka ukwakha. Emva kokuba i-eriyali esele ziqokelelwe, solder loop. Thatha isiqwenga wire eriyali ubude-60 cm kunye ukungawi 75 ohms. Okulandelayo ekucoceni iziphelo ukuze qhina adityanisiweyo kwaye qhoboshela ithumbu engundoqo. A ucingo central - le vibrator. Zonke unxulumano kufuneka utywinwe kakuhle ukuthintela ukufuma umthondo. Vibrator - loop yenziweyo into efanayo njengoko eriyali ngokwayo. Umgama phakathi iziphelo vibrator kufuneka-10 cm kubo shwankathela wire engundoqo. Emva koko qhagamshela intambo eriyali kunye kwisidibanisi ubude ofunekayo.

Xa ilizwe lethu ezininzi zokuhlala, apho impucuko uye okwangoku kufikelelwe, kwaye ezi neencam zendlela yokwenza eriyali ekhaya, nangoku ezifanelekileyo.

Ngokuqhelekileyo Yagi eriyali loop vibrator ngowokuba phezulu kangangoko. Kulungile ukuba athathe ibhloko yokulinganisa-50 mm yi-50 mm kunye ubude leemitha 6 iinkuni, ukulungisa i-eriyali phezu kwayo, emva lonke ubude wire ukuba ubanike kwaye ufake kwi kwisakhiwo eliseluphahleni.

Ngenxa yoko, kweli nqaku, wafunda indlela yokwenza eriyali kwi TV, ngaphandle koncedo lweengcali, ngaphandle kokuchitha imali yithenge, yaye lo mshini evenkileni, ukuba uhlala kummandla ekude. Experiment.