Ukuze ukwazi ukubukela iTV kwiTV, kufuneka udibanise kwi-antenna. Kwenzeka ukuba ngesizathu esithile awunayo i-antenna: unokuba unomnqweno okanye iindlela zokuhlawula iinkonzo zomthumeli we-TV, okanye ude ngaphaya kwesi sixeko, apho i-TV ayiyi kubonakalisa ngaphandle kokufumana ngaphandle kwimiqondiso kwisimo se-antenna.
Ukuze ukwazi ukubukela iTV ngaye, ufuna i-antenna. Ewe, ukuba kukho izinto ezilula kwaye zikhawuleza ukuzithenga kwivenkile. Kodwa unokwenza enye indlela. Ngendlela yokwenza i-antenna yeTV ngezandla zakho iya kuxelwa kwakhona.
Ukuba wenza i-antenna ngokwakho, uya kukwazi ukujonga umthamo omncinci weziteshi zeTV nakwizinga elibi, kodwa ngokukhululekile.
Internor HDTV Antenna
Emva kokuba wenze i-antenna ngokwakho, unokufumana umqondiso ukusuka kwinqanaba le-TV kumgama we-470-790 MHz.
Ngaphambi kokwenza i-antenna kwi-wire, izinto ezilandelayo kufuneka zilungiselelwe:
- ummese;
- ITapech tape;
- ngumgxhasi;
- roulette;
- ukubambelela;
- izikiti;
- ummakishi;
- foil;
- amakhadibhodi.
- Phrinta itemplate kwiphepha uze uyinqumle.
- Cima umbonisi wekhadibhodi olinganisa u-35 cm (ubude) ngo-32.5 cm (ububanzi). Siyibamba ngefowuni.
- Sifuna uphakathi kwaye sinqumle iirectangles ezimbini ezincinci.
- Ukusuka kwithemplate sasiqhawula iinkcukacha kwikhadibhodi.
- Unokupenda iinkcukacha kuyo nayiphi na umbala.
- Ngoku, nqumbela iphetshana lephoyile.
- Ukugoba ekugqibeleni, yenza udidi oluncinane.
- Sifaka i-foil kwi-vibrator ye-antenna, ebizwa ngokuba yi "butterfly".
- Masiqale ukuhlanganisa i-antenna. Kwimitha ye-3.5 cm ukusuka kwisibonisi sibamba ifly butterfly.
- Phakathi kwebhathakhathane siqhuba imingxuma yekhebula.
- Sibeka i-transformer efanayo e-300 ukuya kwi-75 Ohm.
- I-Antenna yokusetyenziswa ekhaya ikulungele.
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I-Antenna ye-dacha ngezandla
I-Antenna yendawo yokuhlala yasehlobo iyenziwa ngendlela ye-lattice. Okokuqala silungiselela i-inventory:
- ucingo lwethusi kunye nobubanzi be-4 mm kunye nobude malunga neekhilomitha ezine;
- ububanzi beebhodi ngamasentimitha angu-7 kunye nobude bu-55 cm;
- iplagi;
- izikrini ezilishumi;
- umlawuli;
- ipensela elula;
- itekiti;
- i sinyithi yentsimbi.
1. Ukususela ebhodini senza umsebenzi wobuchule ngokwecandelo elilandelayo.
2. Imilinganiselo yesithombeni isesentimitha. Kufuneka baguqulelwe ngamasentimitha:
- 3/4 "= 2 cm;
- 1 "= 2.5 cm;
- 2 "= 5 cm;
- 2 5/8 "= 6, 66 cm (inokwenza u-6.5 cm);
- 5 ΒΌ "= 13, 33 cm (yenza 13 cm);
- 22 "= 55 cm.
3. Intsimbi yobhedu inqunywe ngamaqhekeza angama-37,5 ubude nganye (15 intshi).
4. Ukuxhunywa kwexesha elizayo, phakathi kwentsimbi nganye kufuneka ihlulwe.
5. Sika ezimbini iingcingo ze-22 cm kwaye uhlambulule kwidibaniselwano.
6. Ezinye iintambo zigoba ngeleta "V". Umgama phakathi kweziphelo kufuneka ube ngamasentimitha amathathu (7.5 cm).
7. Hlanganisa i-antenna njengoko kuboniswe kwisithombe esingezantsi.
8. Thatha iplagi uze uxhume i-antenna ngekhebula.
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9. I-bottom of the coil kufuneka ifakwe kwi-cable.
10. Fakela iplagi kwibhodi.
11. I-antenna yokufumana iziteshi zeTV kweli lizwe lilungele ukufumana uphawu.
Indlela yokwenza isikhonkwane se-antenna?
Ukuba usebenzisa i-antenna ekwenzeni i-deta, kufuneka usebenzise isikhonkwane sokuqhagamshela kwangaphandle. Unokwenza ngokwakho. Ngenxa yoko, iipayipi zensimbi zifanelekile.
- Sithatha iipayipi ezimbini kwaye sibamba emhlabathini.
- Siphonsa imingxuma kwicala ngalinye kwaye sifaka ibha ye-iron reinforcement.
- Kwintonga "yomtya" isitiba ngokwawo okanye umkhono wombhobho.
- Kulo mkhono, unokufaka nayiphi na inombolo yamabhobho. Sibafakela ngentambo yensimbi. Ngaloo ndlela, ukuphakama kwesigxina sokulungisa i-antenna kunokwenziwa nayiphi na ngokuyandisa ngeebhobho ezongezelelweyo.
Yenza i-antenna indlu okanye indlu ayikho nzima. Kwanele ukuba nezinto eziyimfuneko zikhoyo. Yaye ixesha lokuvelisa aliyi kuba ngaphezu kwemizuzu engama-30. Kodwa uya kuba nesixhobo esisebenzayo sokufumana isalathisi seTV, eyenziwe nguwe, kwaye umbuzo uza kulungiswa, kunokuba uhlale emntwaneni kwimvula yezulu.