Njengegatsha le-antenna, i-antenna yezimoto inezakhiwo ezifanayo ezisebenzayo kwezinye izimpondo, futhi izohlangabezana nezinkinga ezifanayo.
1. Okokuqala, buyini ubudlelwano phakathi kwesikhundla sokufaka se-antenna yemoto nokuqondiswa kwayo?
Emcabangweni, i-antenna yemoto efakwe emotweni ayinawo umugqa oqondile ohlangothini oluvundlile, kodwa ngenxa yokwakheka okungajwayelekile komzimba wemoto kanye nesikhundla sokufakwa kwe-antenna, ukufakwa kwangempela kwe-antenna ephathekayo kunokuqondiswa okuthile, kanye nokwenza Lokhu kuqondiswa kuhlukile kulokho kwe-antenna eqondayo. Isimo esiqondayo sezinduna zemoto asihambi ngendlela engajwayelekile futhi siyahlukahluka emotweni eya emotweni.
Uma i-antenna ifakwe maphakathi nophahla, imisebe ye-antenna ezinkomba ngaphambili nangemuva izoba namandla kancane kunezinkomba zesokunxele nesokudla. Uma i-antenna ifakwe ohlangothini olulodwa, umphumela wemisebe ungcono kancane ngakolunye uhlangothi. Ngakho-ke, kwesinye isikhathi sithola ukuthi lapho sihamba ngendlela efanayo, umphumela wokuxhumana ulungile, kodwa lapho sibuyela emuva, umphumela wokuxhumana oqondile uhlukile kakhulu, ngoba umphumela wokuxhumana we-antenna wohluke kakhulu, ngoba umphumela wemisebe ye-antenna kuzo zombili izinhlangothi zemoto uhlukile.
2. Kungani amasiginali wokuxhumana okuqondile phakathi kwesikhashana ekusetshenzisweni kwe-V / UHF Mobile?
Imvamisa, amagagasi ama-v / uhf amagagasi anezindlela eziningi ngesikhathi sokudluliselwa, afinyelela endaweni etholayo emugqeni oqondile, futhi abanye bafinyelela endaweni etholayo ngemuva kokukhombisa. Lapho igagasi lidlula ugongolo oluqondile futhi liboniswe igagasi lisesigabeni esifanayo, i-supperition yamaza amabili aphumela ekuqinisweni okubonakalayo kwamandla wesiginali. Lapho amagagasi aqondile futhi abonisiwe angena ezigabeni eziphambene, amathuba awo ayawukhansela phezulu. Njengoba ibanga phakathi kokudlulisela nokwamukela isiteshi somsakazo wemoto lishintsha njalo lapho lihamba, ubukhulu be-radio wave buyashintsha ngokumangazayo, okuboniswa kusizinda esingemuva.
Ngejubane elihlukile lokuhamba, isikhathi sokushintshana kokushintsha kwe-radio wave ukuqina futhi kuhlukile. Umthetho Wokushintsha yile: Imvamisa ephakeme imvamisa yokusebenza, i-wavength emfushane, ngokushesha ijubane elishukumisayo, likhuphuka imvamisa yesiginali ye-incmitter. Ngakho-ke, lapho ukunqanyulwa kwesiginali kuthinta kakhulu ukuxhumana, unganciphisa kancane kancane isivinini esishukumisayo, uthole indawo lapho isibonakaliso esinamandla khona, yeka imoto yokuxhumana ngqo, bese ubuyela emuva emgwaqweni.
3
Izimoto eziningi zisebenzisa izinduna eziqonde mpo ngalezi zizathu ezilandelayo: okokuqala ukuthi i-antenna enombala oqondile ngokungaqondile ayinawo umkhombandlela oqondile, ukuze umsakazo wemoto ekusetshenzisweni kweselula akufanele ukhathazeke ukuvumelanisa indlela ye-antenna; Okwesibili, i-antenna emile ingasebenzisa i-metal shell njenge-oscillator yayo ebonakalayo, ukuze lapho i-antenna eqondile isendaweni yangempela, futhi konke kuphela kungafakwa indawo yemoto, futhi kunganciphisi kuphela Izindleko, kepha futhi zisiza ukufakwa nokusetshenziswa. Okwesithathu ukuthi i-antenna emile ethe mpo ithatha isikhundla esincane, futhi ukumelana komoya kwe-antenna kuncane, okulungele ukunyakaza okusheshayo.
Kusukela kuleli phuzu lokubukwa, ingxenye esiyifakile iyingxenye kuphela ingxenye ye-antenna ethe mpo. Ngakho-ke, lapho i-antenna ifakwe ngokolunye uhlangothi, amaza omsakazo akhishwa yi-antenna awawona amagagasi anemikhawulo, kodwa ingxube yamagagasi acwebezelayo futhi avundlile. Uma i-antenna etholayo yolunye uhlangothi ithola amagagasi anombala oqondile, amandla wesiginali atholakele ancishisiwe (ngokukhalela okungatheni), kanye okuphambene nalokho okuboniswa kwesiginali etholakele. Ngaphezu kwalokho, i-antenna ekhohlaya yenza imisebe ingalinganiseli, okubonakaliswa ngayo imisebe yokuya phambili ye-antenna inkulu kune-radiation emuva, okuholela ekuqondisweni kwemisebe ebuyela emuva, okuholele ekuqondisweni.
4. Ungaxazulula kanjani ukuphazamiseka komsindo okulethwe yi-antenna yemoto lapho uthola amasiginali?
Ukuphazanyiswa komsindo we-antenna kuhlukaniswe ngokuphazanyiswa kwangaphandle kanye nokuphazanyiswa kwangaphakathi izinhlobo ezimbili. Ukuphazanyiswa Kwangaphandle kungukuphazanyiswa kwangaphandle okutholakele kusuka e-antenna ngaphandle kwemoto, njengokuphazanyiswa kwezimboni, ukuphazamiseka kukagesi emadolobheni, ukungenelela kwemisebe yemoto, ukungenelela okuthe xaxa, isixazululo esinjalo sokuphazanyiswa yindlela engcono kakhulu yokuhlala kude nomthombo wokuphazanyiswa. Imvamisa, imodi ye-FM ku-V / UHF Band inekhono elinamandla lokumelana nalolu hlobo lokuphazamiseka. Ngemuva kokuthi isiginali ingavulwa, umjikelezo wangaphakathi wokukhawulela womshini ungasusa ukuphazanyiswa. Ngokuphazanyiswa kwangaphakathi, ungavele uvivinye futhi ulalele isiteshi somsakazo esibuthakathaka. Uma ukuphazanyiswa kungekukhulu, kukhombisa ukuthi ayikho inkinga ngokuphazanyiswa kohlelo lwemoto. Uma kukhona ezinye iziphazamiso zangaphakathi, esebenzisa i-transceiver ebhodini kuzoxazulula izinkinga eziningi.
Isikhathi sePosi: Nov-30-2022
