Amathiphu wokuthi ungenza kanjani i-antenna ye-TV yakho

Wonke umuntu ufuna ukubuka i-TV yakhe ngekhwalithi elihle, kodwa hhayi kuzo zonke izifunda kungenzeka. Endaweni ethile isignali embi, endaweni ethile ejwayelekile ayikho. Ngakho-ke, kulesi sihloko sizobheka indlela yokwenza i-antenna yokusetha kwe-TV ngezandla zethu.

Kunezinketho eziningi, kodwa kufanele ukhethe okuzogcwalisa ngokugcwele izidingo zakho.

Isibonelo, kusuka kwamathini amathini amabili e-half-litre angakwazi ukuvula i-antenna yokugcina indawo efanele. Kodwa lapha kukhona okuncane. Le antenna izosebenza kuphela ebangeni le-DMV. Ukuze uzuze iziteshi eziningi, amathini amathayi amabili adingekayo.

Umhlangano

Kubhange elilodwa kudingekile ukugoqa umvini ophakathi - isignali, komunye - isibindi esivikelwe. Bese ubamathisela nge-tape kuze kube phansi kwe-trempel. Ngakolunye uhlangothi, ipulagi le-antenna isusiwe. Ukuze uthole ikhwalithi yesithunzi ehloniphekile, udinga ukulungisa ibanga phakathi kwamabhange. Ngakho-ke, ukwenza kanjani i-antenna eyenziwe ngokwayo, elula, uyaqonda.

I-antenna ye-TV esebenzisa i-oscillator ye-loop iyinkimbinkimbi kakhulu, kodwa izinga lokuthola isignali liphakeme. Lapha sidinga ukubalwa. Kusukela ku-antenna enjalo ye-broadband, kufanele ithole iziteshi eziningana, futhi ngokuya ngezinombolo zezinhlelo, ubukhulu bayo kufanele buhluke.

Manje kudingeka sithole indlela yokwenza i-antenna ye-TV ngokulahlekelwa okungenani kanye nezindleko.

Ipayipi eyinhloko, kanye nazo zonke ezinye izingxenye, kufanele zenziwe ngebhesi, ithusi noma i-aluminium. Ubuso babo abukwazi ukulukhuni. I-antenna yensimbi iyoba yindlala kakhulu futhi ukumukelwa kwesignali kuyo kuyoshiya kungabi nekhwalithi. Ngaphezu kwalokho, kuyoba nokugqwala. Kumelwe ukuthi ihlelwe emgwaqweni.

Ubude be-tube enkulu kufanele kube ngamamitha amabili. Kuyo, ngosizo lwezikulubo ezinamamitha ama-5 mm, kufakwe amathebhu ezincane ezincane "abaqondisi". Ibanga eliphakathi kwabo kufanele libe ngu-30 cm. Uzodinga ukushayela kanye ne-drill ngobubanzi buka-5-6 mm ngenhlangano. Ubude bhubhu ngayinye elandelayo kufanele kube ngu-10 cm emifushane. Okusho ukuthi, "umqondisi" wokuqala osezingeni eliphansi uzolingana no-60 cm, i-50 cm elandelayo, njll.

Ngokumelene nomqondisi omkhulu, isibonakaliso sinamathele esisekelo se-tube. Yakhiwa "abathathu" abaqondisi, okuxhunywe ngokufanayo. Khona-ke isidlidliza sikhululwe ipayipi.

Kwabaningi, kusalokhu kuyimfihlakalo ukuthi ungenza kanjani i-antenna ye-TV ukuze ibonakale iyathokozisa ngokuhlelekile, akuyona inkimbinkimbi futhi ngesikhathi esifanayo yamukela zonke iziteshi ezikhona. Njengoba uqonda, kukhona indlela yokuphuma - lena i-antenna yomqondisi ne-oscillator ye-loop.

Siqhubeka nomhlangano. Ngemuva kokuba i-antenna isivele ihlangene, i-solder i-loop. Thatha ucezu lwe-antenna wire 60 cm ubude no-75 ohms ukumelana. Okulandelayo, sihlanza ukuphela ukuze isongo sihlangane ndawonye futhi sinamathele ku-tube enkulu. Futhi izintambo eziphakathi ziya kudlidliza. Konke ukuxhumana kufanele kufakwe uphawu oluqinile ukuze ugweme ukuthungwa komswakama. I-vibrator i-loop eyenziwe yento efanayo ne-antenna ngokwayo. Ibanga eliphakathi kwemikhawulo ye-vibrator kufanele libe ngu-10 cm, futhi liholele ezintambo eziphakathi. Bese uxhuma ucingo lwe-antenna ne-ipulagi yobude obufanele.

Sinezindawo eziningi ezweni lethu, lapho impucuko engakafiki khona, futhi iseluleko esinjengendlela yokwenza i-antenna ekhaya, isasebenza.

Ngokuvamile, i-antenna yomqondisi ene-loop oscillator efakwe phezulu ngangokunokwenzeka. Kungcono ukuthatha ibha lezingodo elilinganiselwa ku-50 mm nge-50 mm nobude bamamitha ayi-6, silungise i-antenna kuso, ngaphambi kokusabalalisa ucingo kuyo yonke ubude bese ufaka isakhiwo ophahleni lwendlu.

Ngakho-ke, kulesi sihloko ufunde ukuthi ungenza kanjani i-antenna ye-TV ngaphandle kokusebenzisa ochwepheshe, ngaphandle kokusebenzisa imali ukuyithenga kanye ne-amplifier esitolo uma uhlala esifundeni esikude. Ukuhlolwa.