Nkuko twese tubizi, walkie-talkie nigikoresho cyingenzi muri sisitemu ya interineti idasanzwe.Walkie-talkie ikora nkumuhuza wo kohereza amajwi muri sisitemu yitumanaho ridafite umugozi.Ikiganiro cya digitale gishobora kugabanywamo ibice byinshi (FDMA) no kugabana umwanya munini (TDMA).Hano rero duhereye ku byiza n'ibibi bya moderi zombi kandi itandukaniro riri hagati ya digital na analog walkie-ibiganiro:
1.Imiyoboro ibiri yo gutunganya uburyo bwa digital walkie-talkie
A.TDMA (Igice cyo kugabana inshuro nyinshi): uburyo bubiri bwa TDMA bwakoreshejwe kugirango ugabanye umuyoboro wa 12.5KHz mubice bibiri, kandi buri mwanya ushobora kohereza ijwi cyangwa amakuru.
Ibyiza:
1. Kongera inshuro ebyiri umuyoboro wa sisitemu igereranya ukoresheje repetater
2. Gusubiramo umwe akora akazi ko gusubiramo kabiri kandi bigabanya ishoramari ryibikoresho byuma.
3. Gukoresha tekinoroji ya TDMA ituma bateri ya talkie-talkie ikora kugeza kuri 40% igihe kirekire itabanje guhererekanya.
Ibibi:
1. Ijwi namakuru ntibishobora koherezwa icyarimwe.
2. Iyo gusubiramo muri sisitemu binaniwe, sisitemu ya FDMA izabura umuyoboro umwe gusa, mugihe sisitemu ya TDMA izabura imiyoboro ibiri.Rero, kunanirwa kunaniza ubushobozi ni bibi kurenza FDMA.
B.FDMA (Igabana rya Frequency Multiple Access):Uburyo bwa FDMA bwakiriwe, kandi umuyoboro mugari ni 6.25KHz, utezimbere cyane imikoreshereze yumurongo.
Ibyiza:
1. Ukoresheje umuyoboro wa 6.25KHz ya ultra-dar ya bande, igipimo cyo gukoresha spekiteri gishobora gukuba kabiri ugereranije na sisitemu gakondo ya 12.5KHz idafite repetater.
2. Mu muyoboro wa 6.25KHz, amakuru yijwi hamwe namakuru ya GPS arashobora koherezwa icyarimwe.
3. Kubera umurongo mugari ukarishye uranga akayunguruzo, kwakira sensibilité id itumanaho ryateye imbere neza mumurongo wa 6.25KHz.Kandi ingaruka zo gukosora amakosa, intera yitumanaho ni nini ya 25% kuruta radio gakondo ya analog FM.Kubwibyo, kugirango itumanaho ritaziguye hagati y’ibikoresho binini na radiyo, uburyo bwa FDMA bufite ibyiza byinshi.
Itandukaniro hagati ya digitale ya digitale-igereranya na analogi-kuganira
1.Gutunganya ibimenyetso byijwi
Digital walkie-talkie: uburyo bwitumanaho bushingiye kumakuru yatunganijwe neza na progaramu ya signal ya digitale hamwe na kodegisi yihariye ya digitale hamwe na baseband modulation.
Analog walkie-talkie: uburyo bwitumanaho buhindura amajwi, ibimenyetso, hamwe nu-guhora-kwizana kubitwara inshuro ya walkie-talkie kandi bigashyirwa mubikorwa binyuze muri amplification.
2.Gukoresha ibikoresho bya sprifike
Ikiganiro cya Digitale-Ikiganiro: bisa na tekinoroji ya sisitemu ya digitale, kugendana na digitale ya digitale irashobora gutwara abakoresha benshi kumuyoboro runaka, kunoza imikoreshereze yumurongo, no gukoresha neza ibikoresho bya spekiteri.
Analog walkie-talkie: hariho ibibazo nko gukoresha nabi umutungo wa frequence, guhamagara nabi ibanga, hamwe nubwoko bumwe bwubucuruzi, butagishoboye guhaza itumanaho ryabakiriya binganda.
3. Hamagara ubuziranenge
Kuberako ikoranabuhanga ryitumanaho rya digitale rifite sisitemu yo gukosora amakosa, kandi ugereranije na analogi yo kuganira, irashobora kugera ku majwi meza nijwi ryiza mugace kagari kerekana ibimenyetso kandi ikakira urusaku ruke rwamajwi kuruta analogi-kuganira.Byongeye kandi, sisitemu ya digitale ifite ihagarikwa ryiza ry urusaku rwibidukikije kandi irashobora kumva amajwi asobanutse mubidukikije.
Igihe cyo kohereza: Kanama-06-2021