Inā ua hoʻohana mua ʻoe i ke kamaʻilio RF (radio frequency), nā pūnaewele kelepona, a i ʻole nā pūnaewele antenna, hiki iā ʻoe ke hālāwai me ka huaʻōlelo LMR cable. Akā he aha ia a no ke aha i hoʻohana nui ʻia ai? Ma kēia ʻatikala, e ʻimi mākou i ke ʻano o ke kelepona LMR, kāna mau hiʻohiʻona koʻikoʻi, a no ke aha ʻo ia ka koho i makemake ʻia no nā noi RF, a pane i ka nīnau 'He aha ka LMR cable?'.
Hoʻomaopopo i ke kaula coaxial LMR
ʻO ke kaula LMR he uwea coaxial i hoʻolālā ʻia no ka hoʻouna ʻana i ka hōʻailona haʻahaʻa haʻahaʻa haʻahaʻa i nā noi RF. Hana ʻia nā kaula LMR e Times Microwave Systems a kaulana ʻia no ko lākou pale maikaʻi, haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, a me ka lōʻihi, e hoʻolilo iā lākou i mea kūpono no ka GPS kamaʻilio kelepona, koho kūpono no ka radar a me nā ʻōnaehana RF ʻē aʻe. ʻAʻole like me nā kaula coaxial maʻamau, ua hoʻolālā ʻia nā kaula LMR me nā ʻāpana he nui o ka pale a me nā mea dielectric e hōʻoia i ka pono o ka hōʻailona. Hele mai lākou i nā nui like ʻole e koho ai, e like me LMR-195, LMR-240, LMR-400, a me LMR-600, kēlā me kēia mea i hoʻolālā ʻia no ka hoʻoponopono mana ʻokoʻa a me nā koi hōʻailona.
ʻO nā hiʻohiʻona nui o ke kaula coaxial LMR
Kūleʻa nā kaula LMR i ke kahua o nā kaula coaxial ma muli o ko lākou ʻano kūʻokoʻa a me nā pono hana.
1. Haʻahaʻa hōʻailona poho
ʻO kekahi o nā pono nui loa o nā kaula LMR me ka nalowale haʻahaʻa haʻahaʻa ʻo ko lākou attenuation haʻahaʻa ma kahi lōʻihi (hōʻailona nalowale). Loaʻa kēia ma o ka insulation dielectric kiʻekiʻe a me ka pale, e hōʻemi ana i ka nalowale o ka ikehu ke hele nā hōʻailona ma nā kaula.
2. Hana maikaʻi i ka pale
ʻO ka hoʻolālā uwea LMR he mau papa pale, ʻo ia hoʻi me ka pale alumini no ka pale EMI (electromagnetic interference) mua. ʻO ka ulana ʻana i ka pale waho e hoʻonui i ka paʻa a hoʻemi hou i ka hoʻopilikia. Mālama kēia pale i nā hōʻailona ikaika a ʻoi aku ka maopopo, e hana ana i nā kaula LMR i koho kūpono no nā noi RF koʻikoʻi.
3. Ka lōʻihi a me ke kū'ē i ka wā
Hoʻopuka ʻo Times Microwave Systems i nā kaula LMR, nona ka puʻu waho ikaika i hana ʻia me ka polyethylene (PE) a i ʻole thermoplastic elastomer (TPE), e pale aku ai i ka radiation ultraviolet, ka wai, a me nā wela wela. ʻO kekahi mau ʻano like ʻole, e like me LMR-UF (Ultra Flex), hāʻawi i ka maʻalahi hou no nā hoʻonohonoho e pono ai ke kulou pinepine a me ka neʻe ʻana.
4. Hoʻokomo maʻalahi a maʻalahi
Hoʻohālikelike ʻia me nā kaula coaxial koʻikoʻi maʻamau, ʻoi aku ka maʻalahi o nā kaula LMR a me ka maʻalahi, e maʻalahi ka hoʻonohonoho ʻana. ʻOi aku ka liʻiliʻi o kā lākou radius kuʻi ma mua o nā kaula RF like, e hiki ai ke hoʻokomo paʻa i nā wahi paʻa.
5. Hoʻohālikelike me nā mea hoʻohui RF
Kākoʻo nā kaula LMR i nā mea hoʻohui he nui, me nā mea hoʻohui N-type (hoʻohana mau ʻia i nā antenna a me nā noi RF). Hoʻohui SMA (no nā ʻōnaehana uila a me GPS). Hoʻohui BNC (kaulana i ka hoʻolaha a me ka pūnaewele). ʻO kēia hoʻohālikelike e hoʻolilo iā lākou i mea maʻalahi i nā ʻoihana like ʻole.
Hoʻohana maʻamau o nā Uila LMR
Mahalo i kāna hana maikaʻi loa, hoʻohana nui ʻia nā kaula LMR i nā ʻoihana e hilinaʻi nei i ke kamaʻilio RF. ʻO kekahi o nā noi maʻamau e pili ana i nā pūnaewele uea a me nā kelepona, antenna a me nā ʻōnaehana RF, GPS a me nā kamaʻilio satellite, nā noi aerospace, ka nānā ʻana a me nā ʻōnaehana palekana.
E koho i ke kaula LMR pono
ʻO ke koho ʻana i ke ʻano kelepona LMR kūpono e pili ana i kekahi mau mea, e like me ka pinepine, ka mamao, ka mālama ʻana i ka mana, a me nā kūlana kaiapuni. Eia kekahi mau koho maʻamau:
LMR-195 a me LMR-240: He kūpono no nā noi pōkole e like me nā antenna Wi Fi a me nā ʻōnaehana GPS.
LMR-400: He koho haʻahaʻa haʻahaʻa waena waena i hoʻohana mau ʻia i nā ʻōnaehana kelepona a me nā ʻōnaehana ʻelua ala.
LMR-600: He kūpono loa no nā noi lōʻihi kahi e hōʻemi nui ʻia ai ka nalowale o ka hōʻailona.
Inā makemake ʻoe i ka maʻalahi o nā noi kelepona, ʻo LMR-UF (Ultra Flex) ke koho maikaʻi.
Ka manawa hoʻouna: Mar-13-2025