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Re: [TowerTalk] ground and conductivity

To: msembx-aa6e@yahoo.com
Subject: Re: [TowerTalk] ground and conductivity
From: Jim Jones <k0hy@comcast.net>
Date: Mon, 28 Feb 2005 14:14:52 -0700
List-post: <mailto:towertalk@contesting.com>
If fresh water is bad then how come dx'ing is better when water table is 
high vs low water table?  One place I lived I had a water table 
indicator in the well.  Only noticed because indicator was on wall 
behind radios.

Jim  K0HY

Martin AA6E wrote:

>>From the ARRL Antenna book:
>
>Surface Type              Conductivity (S/m)
>
>Fresh water                 .001
>Salt water                 5.0
>Pastoral hills (dallas!)    .0303
>etc
>
>Fresh water is about the worst ground system there is, according to
>this table.  In terms of conductivity, anyway.  It does have a very
>high dielectric constant, which helps reflect RF, too.
>
>73, Martin AA6E
>
>--- Bryan W5KFT <w5kft@nts-online.net> wrote:
>
>  
>
>>The recent discussions on conductivity have talked about different
>>soil types and saltwater.  Is there any information available about
>>conductivity for antennas mounted above "fresh" water (ie lakes)
>>
>>Is the additional conductivity worth the hassle for installation
>>above a LARGE body of fresh water?
>>Trying to figure out if its worth it to use Lake Buchanan, Texas (8
>>miles wide, 35 miles long)
>>
>>Bryan W5KFT
>>_______________________________________________
>>
>>See: http://www.mscomputer.com  for "Self Supporting Towers",
>>"Wireless Weather Stations", and lot's more.  Call Toll Free,
>>1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>>
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>>
>>    
>>
>
>_______________________________________________
>
>See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
>Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any 
>questions and ask for Sherman, W2FLA.
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk@contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk
>
>  
>
_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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