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Go Back   SailNet Community > General Interest Forums > Gear & Maintenance
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  #31  
Old 03-18-2009
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A 4 kw radar puts out about the same or less average power as your 25w vhf on low power. They pose no hazard at all in normal circumstances. Don't tempt fate however, and avoid long exposure if beam is at eye or gonad level. A 60 kw radar is another matter altogether. The multi megawatt military radars can do serious damage.
Howard Keiper
Berkeley
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  #32  
Old 03-19-2009
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Sounds like a case for "Myth Busters" .
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  #33  
Old 03-19-2009
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Engineering safety notice:
Never look into the wave guide with your good eye.
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  #34  
Old 03-19-2009
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Quote:
Originally Posted by Talisman66 View Post
Sounds like a case for "Myth Busters" .
Too funny! I thought the exact same thing!

Watching them I now know:
  • not to try and clean a cement truck with dynamite
  • cell phones do not affect navigation systems on planes
  • you can't shoot a lock off a door with a pistol
  • and cell phones can not cause gasoline to blow up.
Your post made me smile!

Rik
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  #35  
Old 03-19-2009
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Radar hazards

When I was in the Navy this came under the heading of HERP (Hazards of Electromagnetic Radiation to Personnel) and along with HERO (Ordanance) and HERF (Fuel) made for some very complicated and boring reading. If you want to know what damage radar can do find and watch the video of the disaster on USS Forrestal. Radar can damage people mostly in the areas of the eyes and the testicles. Its' danger changes however based on dwell time, output power, beam width, distance from the antenna, frequency and a whole host of other factors. While it's not a good idea to sit on the radome to keep warm on a chilly day in most cases the radar for our boats does not pose a health risk due primarily to their low power. As long as you are not going to be at eye level with it at a distance of six feet or so during normal operation you should be fine. BTW the warning from Raytheon is accurate though on the conservative side of things.
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