Dab tsi yog qhov dav hlau zaus thiab emission siv rau kev sib txuas lus nyuaj?
Dab tsi yog qhov dav hlau zaus thiab emission siv rau kev sib txuas lus nyuaj?

Video: Dab tsi yog qhov dav hlau zaus thiab emission siv rau kev sib txuas lus nyuaj?

Video: Dab tsi yog qhov dav hlau zaus thiab emission siv rau kev sib txuas lus nyuaj?
Video: Maiv Xis Xyooj Khaus Pim | Tub Siab Loj Xa Lus Rau Maiv Xis Xyooj 2024, Kaum ib hlis
Anonim

Lub dav hlau ELTs thiab kev nyuaj siab hu tau muab tso rau ntawm universal air band kev nyuaj siab ntau zaus , 121.500 MHz. Lub dav hlau emissions yuav luag ib txwm siv AM, yog li A3E yog tus tso pa tawm hom.

Yog li ntawd, pes tsawg zaus koj yuav siv rau kev hu xov tooj thoob ntiaj teb thiab kev ntxhov siab rau cov nkoj thiab dav hlau hla hiav txwv siab?

Cov xov tooj cua hauv hiav txwv muaj ib txheej txheej ntawm zaus muab rau predetermined channels nyob rau hauv xov tooj cua, thiab txhua channel yog tsim rau ib hom kev sib txuas lus. Piv txwv li, channel 16 (156.8 MHz) yog qhov kev hu xovtooj thoob ntiaj teb thiab kev nyuaj siab channel ntawm txhua lub xov tooj cua marine.

Kuj Paub, qhov zaus koj yuav siv thaum muaj xwm txheej ceev? Cov zaus yog 121.5 MHz rau pej xeem, tseem hu ua International Air Distress (IAD) lossis VHF Guard, thiab 243.0 MHz rau kev siv tub rog, tseem hu ua Military Air Distress (MAD) lossis UHF Guard.

Ib yam li ntawd, nws tau nug, puas yog 2182 kHz tseem siv?

International kev nyuaj siab ntau zaus, tam sim no hauv kev siv yog: 2 182 kHz rau nruab nrab ntau maritime suab siv. US Coast Guard tau hais tias "pib Lub Yim Hli 1, 2013, Tus Saib Xyuas ntug dej hiav txwv yuav tsis saib xyuas ntxiv lawm. 2 182 kHz ". Ntau lwm MRCCs, piv txwv li feem ntau nyob rau sab qaum teb Europe, tam sim no tsuas muaj MF muaj peev xwm thiab tsis muaj HF.

Lub nkoj siv li cas?

Nws siv FM channel nyob rau hauv lub suab nrov heev (VHF) xov tooj cua hauv ntau zaus ntawm 156 thiab 174 MHz , suav nrog. Hauv hom lus ntawm International Telecommunication Union lub band hu ua VHF maritime mobile band.

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