Idan kun taɓa amfani da sadarwar RF (mitar rediyo), hanyoyin sadarwar salula, ko tsarin eriya, kuna iya cin karo da kalmar LMR na USB. Amma menene ainihin shi kuma me yasa ake amfani dashi sosai? A cikin wannan labarin, za mu bincika abin da kebul na LMR yake, mahimman halayensa, da kuma dalilin da yasa aka fi so don aikace-aikacen RF, da amsa tambayar 'Mene ne kebul na LMR?'.
Fahimtar kebul na coaxial LMR
Kebul na LMR shine kebul na coaxial da aka tsara don babban aiki, ƙarancin watsa siginar asara a aikace-aikacen RF. Times Microwave Systems ne ke ƙera kebul na LMR kuma sun shahara don kyakkyawan garkuwarsu, ƙarancin sigina, da dorewa, yana mai da su manufa don sadarwa mara waya ta GPS, Zaɓin da ya dace don radar da sauran tsarin tushen RF. Ba kamar igiyoyin coaxial na gargajiya ba, igiyoyin LMR an tsara su tare da yadudduka masu yawa na garkuwa da kayan wuta don tabbatar da ingantaccen sigina. Sun zo da girma dabam dabam don zaɓar daga, kamar LMR-195, LMR-240, LMR-400, da LMR-600, kowanne an ƙirƙira don sarrafa iko daban-daban da buƙatun asarar sigina.
Babban halayen kebul na coaxial LMR
Kebul na LMR sun yi fice a fagen kebul na coaxial saboda tsarin su na musamman da fa'idodin aiki:
1. Ƙananan asarar sigina
Ɗaya daga cikin mahimman fa'idodin kebul na LMR tare da ƙarancin sigina shine ƙarancin ƙarancin su akan nesa mai nisa (asarar sigina). Ana samun wannan ta hanyar insulation dielectric mai inganci da kariya, wanda ke rage asarar makamashi lokacin da sigina ke wucewa ta igiyoyi.
2. Kyakkyawan aikin kariya
Tsarin kebul na LMR yana da matakan kariya da yawa, yawanci gami da garkuwar tsiri na aluminium don kariyar EMI na farko (tsangwama na lantarki). Saƙa na waje garkuwa yana haɓaka karko kuma yana ƙara rage tsangwama. Wannan garkuwa yana tabbatar da sigina masu ƙarfi da haske, yana mai da igiyoyin LMR kyakkyawan zaɓi don aikace-aikacen RF masu mahimmanci.
3. Dorewa da juriya na yanayi
Times Microwave Systems yana samar da igiyoyi na LMR, wanda babban kumfa na waje an yi shi da polyethylene (PE) ko thermoplastic elastomer (TPE), yana mai da shi juriya ga hasken ultraviolet, danshi, da matsanancin yanayin zafi. Wasu bambance-bambancen karatu, kamar LMR-UF (Ultra Flex), suna ba da ƙarin sassauci don shigarwa waɗanda ke buƙatar lankwasawa da motsi akai-akai.
4. M kuma dace shigarwa
Idan aka kwatanta da igiyoyi masu tsauri na coaxial na gargajiya, igiyoyin LMR suna da babban sassauci da nauyi, yin shigarwa cikin sauƙi. Lankwasawa radius ɗinsu ya yi ƙanƙanta sosai fiye da na igiyoyin RF iri ɗaya, wanda ke ba da izinin shigarwa mai ƙarfi a cikin wuraren da aka rufe.
5. Daidaitawa tare da masu haɗin RF
Kebul na LMR suna goyan bayan masu haɗin kai da yawa, gami da masu haɗa nau'in N (wanda aka fi amfani da shi a aikace-aikacen eriya da RF). Mai haɗin SMA (don tsarin mara waya da GPS). Mai haɗin BNC (wanda ya shahara a watsa shirye-shirye da sadarwar sadarwa). Wannan daidaituwar ta sa su zama masu dacewa sosai a masana'antu daban-daban.
Aikace-aikacen gama gari na igiyoyin LMR
Godiya ga kyakkyawan aikin sa, ana amfani da igiyoyin LMR sosai a cikin masana'antu waɗanda suka dogara da sadarwar RF. Wasu daga cikin aikace-aikacen gama gari sun haɗa da cibiyoyin sadarwa mara waya da salon salula, tsarin eriya da tsarin RF, GPS da sadarwar tauraron dan adam, aikace-aikacen sararin samaniya, saka idanu da tsarin tsaro.
Zaɓi kebul na LMR daidai
Zaɓin nau'in kebul na LMR daidai ya dogara da abubuwa da yawa, gami da mita, nisa, sarrafa wutar lantarki, da yanayin muhalli. Ga wasu zaɓuɓɓuka gama gari:
LMR-195 da LMR-240: Ya dace da gajerun aikace-aikace kamar eriyar Wi Fi da tsarin GPS.
LMR-400: Zaɓin tsakiyar kewayon ƙarancin asara da aka saba amfani dashi a cikin salon salula da tsarin rediyo na hanyoyi biyu.
LMR-600: Ya dace sosai don aikace-aikacen nesa mai nisa inda dole ne a rage asarar sigina sosai.
Idan kuna buƙatar sassaucin aikace-aikacen hannu, kebul na LMR-UF (Ultra Flex) shima zaɓi ne mai kyau.
Lokacin aikawa: Maris 13-2025