[aprssig] AIS Live Online
ve7gdh at rac.ca
Sat Mar 17 09:41:34 CDT 2007
Mark (callsign) wrote...
> APRS-like system for Boats, Ships, and SAR Aircraft
"Automatic Identification System (AIS) is used for identifying and
monitoring maritime traffic..."
"The AIS is a shipboard broadcast system that acts like a transponder,
operating in the VHF maritime band, that is capable of handling well over
4,500 reports per minute and updates as often as every two seconds. It uses
Self-Organizing Time Division Multiple Access (SOTDMA) technology to meet
this high broadcast rate and ensure reliable ship-to-ship operation."
Perhaps a bit more like APRS ver 2. We might have some catching up to do.
73 es cul - Keith VE7GDH
"I may be lost, but I know exactly where I am!"
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