Nka shami rya antenne, antenne yimodoka ifite imirimo isa nizindi antene, kandi izahura nibibazo nkibyo mukoresha.
1. Ubwa mbere, ni irihe sano riri hagati yumwanya wa antenne yimodoka nubuyobozi bwayo?
Mubyigisho, antenne yimodoka yashyizwe kumodoka nta cyerekezo cyerekezo cyerekezo gitambitse, ariko kubera imiterere idasanzwe yumubiri wimodoka nu mwanya wo gushyiramo antenne, kwishyiriraho nyirizina antenne igendanwa bifite aho bihurira, nibikorwa bya ubu buyobozi butandukanye nubwa antenne yerekeza.Imiterere yicyerekezo cya antenne yimodoka ntisanzwe kandi iratandukanye mumodoka.
Niba antenne yashizwe hagati yinzu, imirasire ya antenne imbere ninyuma izakomera gato kurenza ibumoso niburyo.Niba antene yashizwe kuruhande rumwe, ingaruka yimirasire iba nziza gato kurundi ruhande.Kubwibyo, rimwe na rimwe dusanga ko iyo tunyuze munzira imwe, ingaruka zitumanaho ni nziza, ariko iyo dusubiye inyuma, ingaruka zitumanaho zitaziguye ziratandukanye cyane, kuko ingaruka za radiyo antenne kumpande zombi zimodoka ziratandukanye.
2. Kuki ibimenyetso byitumanaho bitandukana mugihe cyo gukoresha mobile ya V / UHF?
Mubisanzwe, V / UHF yumurongo wumurongo ufite inzira nyinshi mugihe cyo kohereza, bamwe bagera aho bakirira kumurongo ugororotse, abandi bagera aho bakiriye nyuma yo gutekereza.Iyo umuraba unyuze mumirasire itaziguye kandi ukagaragaza umuraba uri murwego rumwe, hejuru yimipfunda yombi bivamo gushimangira imbaraga zerekana ibimenyetso.Iyo imiraba itaziguye kandi igaragara iri mubice bitandukanye, superposition yabo ihagarika undi.Nkuko intera iri hagati yo kohereza no kwakira radiyo yimodoka ihora ihindagurika iyo igenda, ubukana bwumurongo wa radio nabwo burahinduka kuburyo bugaragara, ibyo bigaragarira mubimenyetso byigihe.
Hamwe n'umuvuduko utandukanye ugenda, intera yo guhinduranya impinduka ya radiyo yumurongo nayo iratandukanye.Guhindura amategeko ni: murwego rwo hejuru rwakazi rukora, igihe kigufi cyumuraba, umuvuduko wihuta, niko inshuro nyinshi zerekana ibimenyetso.Kubwibyo, mugihe guhagarika ibimenyetso bigira ingaruka zikomeye mubitumanaho, urashobora kugabanya buhoro buhoro umuvuduko ugenda, ugashaka aho ikimenyetso cyerekana superpression aricyo gikomeye, uhagarika imodoka kugirango itumanaho ritaziguye, hanyuma usubire mumuhanda.
3. Antenna yimodoka ihagaritse cyangwa kwishyiriraho oblique nibyiza?
Imodoka nyinshi zikoresha antenne zihagaritse kubwimpamvu zikurikira: icya mbere nuko antenne ihagaritse polarisike ya teoritiki idafite icyerekezo cyerekezo gitambitse, kuburyo radio yimodoka mugukoresha mobile itagomba guhangayikishwa no guhuza icyerekezo cya antene;Icya kabiri, antenne ihagaritse irashobora gukoresha igikonoshwa cyicyuma nka oscillator yacyo, kuburyo mugihe antenne ihagaritse ikoreshwa mubyukuri, kimwe cya kabiri cyinganda zishobora gushyirwaho, naho ibindi bigashobora gusimburwa numubiri wimodoka, ntibigabanya gusa igiciro, ariko kandi yorohereza kwishyiriraho no gukoresha.Icya gatatu ni uko antenne ihagaritse ifata umwanya muto, kandi kurwanya umuyaga wa antenne ni bito, bikaba bifasha kugenda vuba.
Uhereye kuriyi ngingo, igice twashizeho mubyukuri ni kimwe cya kabiri cya antenne ihagaritse.Kubwibyo, iyo antenne yashizwe kumurongo umwe kuruhande, imiraba ya radio itangwa na antenne ntabwo iba imiraba ihagaritse, ahubwo ni uruvange rwumurongo uhagaritse kandi utambitse.Niba antenne yakira kurundi ruhande yakira umurongo uhagaritse umuraba, Imbaraga zikimenyetso cyakiriwe ziragabanuka (hamwe na polarisiyonike itambitse), naho ubundi kubimenyetso byakiriwe.Byongeye kandi, antenne ya oblique ituma imirasire idahwitse, igaragarira kuko imirasire yimbere ya antene iruta imirasire yinyuma, bikavamo kuyobora.
4. Nigute wakemura ikibazo cyurusaku ruzanwa na antenne yimodoka mugihe wakiriye ibimenyetso?
Urusaku rwa Antenna rusanzwe rugabanijwemo kwivanga hanze no kwivanga imbere muburyo bubiri.Kwivanga hanze ni ikimenyetso cyo guhagarika cyakiriwe na antenne hanze yimodoka, nko kwivanga mu nganda, guhuza amashanyarazi mu mijyi, ubundi buryo bwo guhuza imishwarara y’imodoka no kwivanga mu kirere, igisubizo nkicyo ni inzira nziza yo kwirinda kure y’inkomoko.Mubisanzwe, uburyo bwa FM muburyo bwa V / UHF bufite ubushobozi bukomeye bwo kurwanya ubu buryo bwo kwivanga.Nyuma yikimenyetso gishobora gufungura, umuzenguruko wimbere wimashini urashobora gukuraho intambamyi.Kubangamira imbere, urashobora kugerageza gusa no kumva radio isa nkintege nke.Niba kwivanga atari binini, byerekana ko ntakibazo kijyanye no kwivanga kwa sisitemu yimodoka.Niba hari ibindi bisamaza imbere, ukoresheje transceiver yo mu ndege bizakemura ibibazo byinshi.
Igihe cyo kohereza: Ugushyingo-30-2022
