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Thread: Great Emergency Signalling Mirror

  1. #11
    Registered Users fooddude's Avatar
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    Hello al, I'm back from a long hiatus for work related crap.

    Has anyone heard good or bad about the Sea Marshall lost diver alert?
    Personal experiences? Please tell. Is it a waste of money or just an insurance policy hopefully never needed?


    www.seamarshall-us.com

    Any info or opinions are much appreciated.



    -Fooddude

  2. #12
    SMN Publisher The Publisher's Avatar
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    What is the range of this non-satellite system?
    SMN Publisher

  3. #13
    Registered Users h2odragon1's Avatar
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    Quote Originally Posted by hbh2oguard View Post
    by any chance did you test a knife?
    My dive knife is anodized black, won't work.

  4. #14
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    Quote Originally Posted by The Publisher View Post
    What is the range of this non-satellite system?
    According to the web site, it has a pretty significant range. On the diver version (I suspect they are all basically the same) it depends who's looking for you. Boat to diver, 0.5 to 3 nautical miles, depending on how high the antenna is on the boat and the sea conditions. Helicopter flying at 1,000 feet and you get 7 to 15 nautical miles and for aircraft at 10,000 feet it goes to 35 nautical miles. Of course, somebody has to know you're missing and report it to the appropriate agencies to get these boats, helicopters and planes out and looking for you. So it still comes down to crew awareness and head count procedures, but if you're wearing one of these, I'd say there's a pretty good chance you'll be found.

    Portable base unit $650, fixed base units from about $3,000 and up. Lost diver beacon, $350 each.
    Take only pictures, leave only bubbles!

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