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May 10th 04, 06:57 PM
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Howard wrote in
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On Sun, 9 May 2004 19:29:38 +0000 (UTC), (Mike Andrews) wrote: Ken Knecht wrote: What are the rotating dipoles I see here and there used for? I suspect data but why not microwave? Among others, I see one on the front of my supermarket, and four more on a pair of large high advertising signs. I'm sure there are others if I'd look for them. They are not very noticable. They are about 4 - 6' long, metal, and turn about once every 5 seconds. Got an image you could mail me? The address is good. The ones on top of billboards keep birds from perching atop the sign and leaving their deposits on the advertisement. I suspect the one on the front of the supermarket keeps the birds from deposting on customers. So logical! Never thought of that! Wonder what made me think they were antennas? One-track mind. Ken -- Untie the two knots to email me |
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