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Tag Radioascolto

Radioascolto, Software

Radioascolto del traffico marittimo – seconda parte

Il sistema AIS non utilizza solo i canali in VHF, ma anche dei canali HF e MF con modulazione SSB. Queste frequenze vengono utilizzate per le chiamate selettive digitali o Digital Selective Calling (DSC). Il DSC è inteso principalmente per…

admin
9 Giugno 2007
2 commenti

Radioascolto, Software

Radioascolto del traffico marittimo

Dal Dicembre del 2004 tutte le navi aldisopra delle 300 tonnellate di stazza devono essere equipaggiate con un dispositivo per la comunicazione d’emergenza denominato AIS. Tale sistema codifica dati digitali sulla banda audio, proprio come l’APRS o il packet, trasmettendo…

stefano
8 Giugno 2007

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