Two On A Big Ocean The Story of the First Circumnavigation
of the Pacific Basin
in a Small Sailing Ship


      

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Re: lv-ab: Re: AIS - Universal Shipborne Automatic IdentificationSystem

From: Mark McCurdy (no email)
Date: Thu Jan 23 2003 - 11:59:51 EST

  • Next message: Pierre: "Re: lv-ab: When does antifreeze really freeze?"

    AIS being introduced in Canada......

    I was discussing it with a friend of mine in Mil. Intel. here in The Great
    North.
    I thought I would pass it along as a perspective if anyone was interested.

    It is knowledge that is generally available.

    He wrote...
    ........."saw a brief explanation of the AIS transponders the other day. The
    driving force behind this is to avert terrorism and to allow early
    identification of vessels entering Canadian waters. Here is the flaw. Rouge
    vessels will continue to drift under our radar in order to off-load refugees
    and/or undesirables. Identifying regular but suspected cargo vessels early
    will allow customs to better prepare for their arrival. Given that over 90%
    of all containers have transported drugs at one time in their life, the only
    way to search is with a team of custom officials which can take up to eight
    hours for each container. Human intelligence, which is dreadfully lacking in
    much of the world, is the only way to identify specific contraband
    containers carrying people, weapons, bomb making material or drugs. You can
    appreciate the difficulty when each ship has thousands of containers.
    AIS on small vessels is unlikely to be mandated because of the cost
    associated with each unit. Also from a privacy point, this would be like
    putting a homing devise on every person to monitor their movement as they
    traveled throughout their day. Unlike radar, AIS is an active system which
    means that in order for me to see you, your AIS transponder must be turned
    on and transmitting. The USA have been capturing signal suite groupings from
    every vessel at every choke point in the world for a number of years.
    Identifying individual vessels with an electronic signature allows them to
    follow their movements globally. Unfortunately, if a piece of electronics is
    switched out or upgraded, say in Singapore, (great cost) then the signature
    is altered. Every system has its limitations."

    FWIW.
    Mark.
    'Matileena'
    3270 Bayliner

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  • Next message: Pierre: "Re: lv-ab: When does antifreeze really freeze?"



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