Ngena inkathi antenna: ekubalweni Ubukhulu nezici eziyisisekelo

antenna Ngena inkathi ihlukaniswa njengoba amayunithi ohlangothini. Amamodeli bavame sokuqhuba yamaza iDemo. amadivaysi Iningi anemisila kugqame vysokoprovodimym. Ezinye ukushintshwa zenziwa ukuze isidlidlizi panel. Sinenkosi eyodwa noma ngaphezulu yokukhulisa umsindo. Kufanele kuphawulwe ukuthi zikhona amadivayisi nge Lidlulisela siteshi.

Yiziphi nemingcele main log-gqwa-antenna uhlobo? Okokuqala kubalulekile acabangele imvamisa zedivayisi. Futhi kubhekwe ngochwepheshe directivity nokuzuza. Wokufaka impedance sithinta imingcele lukamakhalekhukhwini.

onobuhle ukubala

Ukubalwa antenna kwenzeka esekelwe ubude strut. Uma sicabangela oyisibonelo isidlidlizi, le kugqame isetshenziswa uhlobo dipole. Nge ubude 20 cm, ububanzi iphaneli kufanele kube ngu 30 cm. Ngokwandisa Usayizi yokubeka, iphaneli kuyakhethwa Ubukhulu okuhambisanayo.

Idivayisi ngezandla zakho

A log-gqwa-antenna ngezandla zakhe eligoqiwe nge ukubonakalisa elula, futhi isidlidlizi kungcono ukusebenzisa nge intambo isandiso. Okokuqala ibekwe ngqo insika. Racks awashintsheki usebenzisa umshini Welding. Ochwepheshe ukweluleka ngokushesha ufake amplifier.

Wiring kumele kusetshenziswe phansi kuphela. Wegazi zezinhlobo ezahlukene zisetshenziselwa wehlise imvamisa. onobuhle Iningi amandla yi-adapters contact. I yokubeka engenhla kubalulekile ukusebenzisa ububanzi ezincane. Kuyadingeka ukuba banake adaptha engezansi, okuyinto isuka wire. Kuye imodeli ukubala ubukhulu log-gqwa lukamakhalekhukhwini.

Imodeli for umamukeli elula

Ngena inkathi antenna insika zakhiwe ukuphakama low abamukelayo elula. Nokulungiswa ezivamile abhekwa ku Racks ezintathu. Uma sicabangela antenna nomunye adaptha, le kugqame lisetshenzisiwe capacitor. Kufanele kuqashelwe ukuthi le insika eqondiswa yokubeka. Memezani Kulokhu ivelakancane. Adapters babe antenna ukukhwezwa ngokusebenzisa kubakaki. Ochwepheshe bathi onobuhle ethandwa kakhulu ezibhekwa nge dipole adapters. Abakwazi ukusebenza wave iDemo.

Idivayisi ene yokubeka

Antenna reception umsindo hhayi banikezwe conductivity eliphezulu. Emakethe kukhona amadivayisi nge vibrators reverse. Babesebenzisa ukwesekwa sasivumela ububanzi. Ngesikhathi esifanayo abanikazi kusungulwa ububanzi ezincane. Uma sicabangela ejwayelekile log-gqwa-antenna uhlobo, it has a kugqame olulodwa. Rack ogibele ukuma obandayo. antenna zivame ithengiswe ngaphandle abanikazi. Kwalokho adala ezinkulu unikezwe isisekelo ebanzi. Izinga eliphakeme ubhekwa amadivayisi nge adapters ethuthukisiwe. Vibrators kungabuye ezifakiwe ngaphandle i-adaptha. Imele kulokhu, kukhona obuphelele encane.

Imodeli Racks ezimbili

UHF log-gqwa-antenna kanye ibhayisikobho edlala amahora amabili enziwe ukubonakalisa eziteshini ezintathu. Ochwepheshe bathi onobuhle babe conductivity ezahlukene. Uma ukhetha ukushintshwa kufanele sinake ukuguqulwa ukusekelwa. Abanikazi lingakhetha L-okwenyanga. Kaningi, lolu hlobo antenna efakwe ophahleni.

Amadivayisi efanelekayo ngokwenza isiteshi sethelevishini. Noma kunjalo, ngeke sikwazi usebenze nhlobo amaza. Kulokhu, ukuthi okuningi kuncike endleleni ukuma kugqame. zesimanje antenna uhlobo logoperiodic asetshenziswa nge okukhipha yokukhulisa umsindo. Ngaphansi kwazo asethwe adapters evulekile kuphela. Kulokhu, vibrators zixhunywe maphakathi the yokubeka. Mast kuhluke ubude. Lapha kuxhomeke kakhulu ububanzi yokubeka. Conductivity incike ukuguqulwa kugqame. Wire antenna kufanele asuke olwandisa.

antenna ovundlile

antenna ovundlile TV logoperiodic uhlobo imele isimo sokuma ububanzi. onobuhle abaningi basebenzisa insika eside kanye nokwesekwa kuphela eyenziwe aluminium ingxubevange. Uma wayefisa, ilogi inkathi antenna uhlobo kungenziwa ngokuzimela. Kuyinto kahle for owamukelayo akuyona amandla amakhulu. Ochwepheshe bathi umnikazi lokuqala ibekwe. Kungaleso sikhathi kuphela lapho ungabeka insika. Isinyathelo esilandelayo is ukubeka kugqame. Uma sicabanga yokweba ukuguqulwa, banayo vibrators ezimbili.

onobuhle amaningi akhiwe ngaphandle izitobhi. Racks asesikhundleni evundlile. Ukusetha log-gqwa-antenna uhlobo esetshenziswa ezibanzi yasibamba izakhi zensimbi. Kufanele kuphawulwe ukuthi kukhona eliphezulu imvamisa ukuguqulwa lapho amplifier ifakiwe. Enhancers akhethiwe kuphela kumadivayisi we conductivity eliphezulu. Kaningi, zikhona amadivaysi emakethe nge polarity ezimbi. Okokuqala, izazi zithi banayo awunankinga amagagasi iDemo nokuzuza eliphezulu kakhulu. Kusuka imodeli izibalo encike ngqo kwi usayizi antenna log-gqwa.

ukuguqulwa mpo

Ngokuvamile ezitholakala ezitolo mpo log-gqwa lukamakhalekhukhwini. imodeli ukubala Kwenziwa okusekelwe ubukhulu yokubeka. Kuqondile log-gqwa-antenna uhlobo enziwe reflectors ka conductivity ezahlukene. onobuhle amaningi akhiwe ukuxhumana adapters.

Ungase futhi uthole amadivayisi ngaphandle yokukhulisa umsindo ezitolo. Njengomthetho, ayesebenzisa reflectors esifushane, futhi vibrators asethwe uhlobo shortwave. Okuncane ovumelekile imvamisa antenna kuxhomeke ezicini eziningi. Kulokhu, umsebenzisi kumele acabangele ukungawi kugqame. Ngaphezu kwalokho, kubalulekile ukwazi uhlobo olwandisa. onobuhle Iningi zidayiswa ne abalawuli ezivamile.

I-apharathasi 144 MHz

lolu hlobo antenna log-gqwa senziwa namaqhosha eside, futhi vibrators zisetshenziswa kanye izisekelo. Imodeli ejwayelekile kuhlanganisa omunye Isixhumi. Yokukhulisa umsindo kulolu hlobo antenna ungene isethi gqwa kwamandla ezahlukene. Ngaphezu kwalokho, kubalulekile ukukhumbula ukuthi nokulungiswa zihlukile conductivity. Amanye amadivayisi zenziwa nge counter. Sinenkosi impedance okokufaka ongaphakeme. Ngokuvamile, lakhicitwe nge okukhipha isidlidlizi. Abanikazi asethwe kwaleli chibi. Uma wayefisa, i-antenna uhlobo log-gqwa ezinjalo zingenza noma yimuphi umuntu. Kulokhu, kubalulekile ukubala ukuphakama yokubeka.

Ukuguqulwa 145 MHz

Antenna TV yalolu hlobo kuphela nge dipole reflectors. Kulokhu, vibrators asetshenziswa nge conductivity isilinganiso. Ochwepheshe bathi emakethe ukulungiswa wandile ukuze adapters olunezintambo. Reflectors basuke ogibele Racks. Side izisekelo kungaba esikhulu kakhulu. Futhi kuyaphawuleka ezingeni lelisetulu ukumelana kule idatha yefayela lokungena gqwa-antenna hlobo.

Uma wayefisa, lo oyisibonelo ungakusiza uhlanganiswe ekhaya. Ochwepheshe le njongo kukhona okuthunyelwe metal, okuyinto kuhlobene esebenzisa inverter Welding. Isidlidlizi esetshenziswa okukhipha olulodwa. I-antenna wire eqondiswa olwandisa. Njengomthetho, it is agibele amahhashi ezansi aqinise ensikeni yaso.

Model ngethusi insika

A log-gqwa-antenna T2 zethusi insika ngokuphawulekayo lusebenza ku amaza ezahlukene. imodeli Standard ihlanganisa pin adaptha okuyinto eqondiswa ezansi the yokubeka. Vibrators onobuhle sisebenza kuphela ku-olwandisa. Kufanele kuqashelwe ukuthi le esitolo lunezinti nge reflectors ububanzi. Iningi lazo ungakwazi qalisa esiqalisweni imisindo ephansi. Ochwepheshe bathi kukhona kudivayisi nokwehlukana ephambene. Ngenxa yalezi extenders asetshenziswa nge contact reflectors. Abanye onobuhle anemisila yokukhulisa umsindo, ezixhunywe sub.

Amadivayisi ngensimbi insika

antenna Ngena inkathi nge steel insika kungenziwa ngokuzimela. Ochwepheshe batusa salokhu sokuvuna ukwesekwa ezibanzi. onobuhle Iningi conductivity eliphezulu, futhi afaneleka kahle kokwenza isignali. Vibrators asetshenziswa amamodeli we ukuzwela ezahlukene. Kulokhu, lo yokukhulisa umsindo ngokuvamile efakwe ezansi aqinise ensikeni yaso. Ochwepheshe bathi lokhu kuyadingeka ukuze silungise adaptha kuphela ngokusebenzisa Transistor kanye kwamandla.

Ngaphezu kwalokho, kubalulekile ukuba wazi ukuthi uma imodeli inhlangano bungabangela izinkinga injena. Uma sicabanga yokweba antenna, banalo umnikazi okukhulu. Wathi phambi ukwesekwa ngokuphephile fixed ngqo apharathasi insika.