Ngati mudagwiritsapo ntchito rf (kuyanja kwa ma radiory), ma network, kapena ma antetena, mungakumane ndi mawu oti lmr. Koma ndi chiyani kwenikweni komanso chifukwa chiyani chimagwiritsidwa ntchito kwambiri? Munkhaniyi, tiwunika zingwe za RM, zazikuluzikulu, ndipo chifukwa chiyani ndi chisankho chomwe mungakonde pamapulogalamu a RF, ndikuyankha funsoli 'Kodi chingwe cha LMR ndi chiyani?'.
Mvetsetsani chingwe cha LMR Coaxial
Chingwe cha LMR ndi chingwe cholumikizira chopangidwira kwambiri, zomwe zimatayika pang'ono pazithunzi za RF. Zingwe za LMR zimapangidwa nthawi zonse ma Microwave Makina ndipo amadziwika kuti ali ndi chitetezo chotchinga, komanso kulimba, ndikuwapangitsa kukhala abwino kuti apeze zingwe za zingwe, kusankha koyenera kwa makina a radi ndi RF. Mosiyana ndi zingwe zachikhalidwe zachuma, mabatani a LMR zidapangidwa ndi zigawo zingapo za zida zotetezedwa komanso zadyera kuti zitsimikizire kukhulupirika kwabwino. Amabwera mosiyanasiyana kuti asankhe, monga LMR-195, LMR-240, LMR-400, ndipo LMR-600, iliyonse imapangidwa kuti isawonongeke ndi malingaliro osiyanasiyana.
Makhalidwe Akuluakulu a Limr Coaxial chingwe
Zingwe za LMR zimayimirira m'munda wa zingwe za coaxial chifukwa cha kapangidwe kawo ndi maubwino a magwiritsidwe:
1. Kuwonongeka kotsika
Chimodzi mwazinthu zofunika kwambiri za zingwe za LMR yokhala ndi kuwonongeka kotsika ndikuchepetsa kwawo kwa mtunda wautali (kuwonongeka kwa chizindikiro). Izi zimatheka kudzera mu sekondale kwambiri komanso yotchinga, yomwe imachepetsa mphamvu ya mphamvu ikatha kulowa m'matumba.
2. Magwiridwe antchito abwino
Kapangidwe kake ka lmr kumakhala ndi zigawo zingapo zotchinga, kuphatikizapo kuphatikiza zingwe za aluminiyamu zotchingira za eyi (kusokoneza electromagnetic). Kuluka kunja kwa kunja kumalimbikitsa kulimba komanso kumachepetsa kusokonekera. Izi chitchinthichi zimatsimikizira kulimba komanso kuwonekeratu, kupanga zingwe zabwino kwambiri kusankha kwa ma rf.
3. Kulimbana ndi nyengo
Nthawi za Microferove MPHAMVA imabweretsa zingwe za LMR, zomwe sitima zawo zolimba zimapangidwa ndi polyethylene (PE) kapena kuthwa) Zosiyanasiyana, monga LMR-UF (ultra flex), imaperekanso kusinthasintha kwa makonzedwe omwe amafunikira kusinthasintha kokhazikika ndi kuyenda.
4. Kuyika kosinthika komanso kosavuta
Poyerekeza ndi zingwe zamitundu yolimba, zingwe za LMR zimasinthasintha kwambiri komanso zopepuka, zimapangitsa kukhala kosavuta. Nyimbo zawo zowerama ndizocheperako kuposa zingwe zofanana za RF, zomwe zimalola kukhazikitsa molimba m'malo otsekeka.
5. Kugwirizana ndi zolumikizira za RF
Zingwe za LMR zimathandizira zolumikizira zingapo, kuphatikiza zolumikizira (zomwe zimagwiritsidwa ntchito mu Antenna ndi RF). Sma cholumikizira (kwa makina opanda zingwe). Cnc cholumikizira (chotchuka pakuimba ndi maukonde). Kugwirizana uku kumawapangitsa kukhala osinthana ndi mafakitale osiyanasiyana.
Ntchito Zodziwika za Zingwe za LMR
Chifukwa cha ntchito yake yabwino kwambiri, zingwe za lmr zimagwiritsidwa ntchito kwambiri m'makampani omwe amadalira kulumikizana kwa rf. Zina mwazomwe zimagwiritsidwa ntchito zimaphatikizapo maukonde opanda zingwe komanso ma cell, ma cell a ma cell, GPS ndi ma satellite a ma satellite, poimira ma aerosther, kuwunikira njira zachitetezo.
Sankhani chingwe cholondola cha LMR
Kusankhidwa kwa mtundu wolondola wa LMR kumatengera zinthu zingapo, kuphatikiza pafupipafupi, mtunda, kuyendetsa mphamvu, ndi zochitika zachilengedwe. Nazi zina mwazomwe zimagwiritsidwa ntchito:
LMR-195 ndi LMR-240: Oyenera kugwiritsa ntchito njira zazifupi monga finnas ndi GPS.
LMR-400: Kutayika kochepa pakati pa mitundu yomwe nthawi zambiri kumagwiritsidwa ntchito mu ma cellular njira mwanjira zina.
LMR-600: Woyenera kwambiri pakugwiritsa ntchito kwa nthawi yayitali pomwe kutaya chizindikiro kumayenera kuchepetsedwa kwambiri.
Ngati mukufuna kusinthasintha kwa mapulogalamu am'manja, lmr-uf (ultra flex) chingwe) ndi chisankho chabwino.
Post Nthawi: Mar-13-2025