Kangakanani-antenna ngoba imodemu

Abaningi sibhekene reception abampofu 3G. antenna Homemade ngoba 3G imodemu - enye yezindlela aphume isimo. Futhi akubalulekile kangako ukuba abe isixhumi for kudivayisi yakho noma cha, njengoba njengembuyiselo sizonikela kuwe izixazululo esikhundleni imishini enjalo, lapho, futhi ezingavunyelwe.

Antenna ukuze imodemu uyakwazi zwi a isignali enganamandla. Ake uqale nge indlela iningi elula ukwenza kube. Thatha wire ithusi, futhi badedelane mayelana emithathu kuya kwemine emhlabeni kudivayisi yakho. Kungcono ukuba nizenze emaphethelweni-ke, ngoba kukhona olakhelwe reception.

Ukuze test siba imodemu, eyabonisa -107-decibel angu. Ngu emazombezombe wire yethusi ukhulise isilinganiso okuthiwa "palkomera", kuyilapho nokubhalwa lakhuphuka lafika ku -101-decibel angu. Lokhu-antenna ngoba 3G imodemu ngezandla zakho idinga isinyathelo ecacile. Phela, wena kufanele ukhethe ubude, ukujiya kanye nenani ematfuba wire. Ngokwesibonelo, ubude eyengeziwe noma ikhoyili kungaba kokubili ngcono futhi kunganciphisa izinga isignali reception.

Antenna ukuze imodemu: ukhetho lwesibili. Ibizwa ngokuthi colander noma epanini. Zonke abalandeli ucwaningo, okuyinto balethwa yithemba nge ababuthakathaka ukufinyelela ijubane, ukuziqambela design ahlukahlukene exotic ngomfanekiso amabhodwe, izikrini, futhi i-satellite dish. Lokhu kukhetha kancane ongcono kunalowo odlule, kodwa lokhu antenna ngoba imodemu kuzodinga isikhathi esiningi.

Kufanele kuqashelwe ukuthi ngedivayisi ngokuvamile kuhlanganisa extension wire. ubude bayo ngokuvamile zokhahlamba kusuka ngamamitha amathathu kuya kwamahlanu. Ekupheleni kukhona obuncane tape kabili emaceleni ngawo imodemu unamathele eduze kwefasitela noma obondeni. Iziqondiso olunikezwa nomkhiqizi wedivaysi. Ngu isenzo Ukuthinta lolo luthi a imodemu efana inketho wire esiye ngayo ekuqaleni.

Indlela elandelayo - cupping. Okokuqala, ngokuvamile sisetshenziswa-Wi-Fi kunethiwekhi. Ngenxa le ndlela, izingcweti ephethwe ukunweba lezi amanethiwekhi phezu ibanga amakhilomitha amaningana phakathi zokungena. Ngakho, sithatha elingenalutho tin ikani futhi wenze ezinye izibalo ezilula.

Nasi isibonelo sokubala ezinjalo. I ububanzi we amathini (D) lilingana eziyikhulu amamilimitha angu. Wavelength L _o 143 amamilimitha angu, ngokulandelana L _o / 4 kuyoba cishe 36 kwangu. Wavelength L _g ilingana 261 mm, futhi L _g / 4 ilingana cishe 65 kwangu. Ngakho-ke, at ibanga 65 kwangu kusuka phansi amabhange zethu senza umgodi lapho eqondiswa esokhethini ejwayelekile. Ukuze lokhu waveguide soldered kabani obuphelele ilingana amamilimitha angu-36. Kumelwe kwenziwe wire ithusi, ogama ubukhulu kuyinto amamilimitha angu ezimbili.

Manje bathathwa ithelevishini aluka ikhebula, elikulo i isixhumi antenna ukuthi plugs ebhange, futhi ngakolunye uhlangothi - isixhumi imodemu.

Futhi uma kungekho isixhumi? Kulokhu, ungakwazi ukuqaqa iyunithi futhi uthole phezu kwezisekelo ibhodi wokulinganisa. Ukuze lokhu soldered wire kwakuvikela of ububanzi ezincane. Ngokwenza kanjalo uzosondeza i-adaptha ukuze ixhume ku-antenna. Kodwa kufanele kwenziwe ngokucophelela ukuze singathwesi ulahlekelwe isiqinisekiso eye- noma cha ukuhoxisa isasebenziseka ngokuphelele.