Re(2): [Antennas] A floating Beverage?

[Micah Stevens]

Here's some conductivity measurements:

http://www2.arrl.org/tis/info/tech.html

Fresh water seems pretty poor at conducting, probably depending on how much 
mineral/silt content there is. Pure water as we know is an insulator. 

This article in regards to radials, suggests again installing near a body of 
water as it's worse off than not. 

http://www.astrosurf.org/lombry/qsl-radials.htm

Hope that helps,
-Micah 


On Monday 24 October 2005 1:24 pm, Eugene Hertz wrote:
> sounds like an ideal ground plane! Fish out to the center and set up a
> vertical! Eugene
>
> >-----Original Message-----
> >From: DavidE Benedict [mailto:iam at pmug.org]
> >Sent: Monday, October 24, 2005 03:15 PM
> >To: micah at 9250x.com
> >Cc: antennas at mailman.qth.net
> >Subject: Re(2): [Antennas] A floating Beverage?
> >
> >
> >Water will attenuate RF quite a bit, it's better a lower frequencies, but
> >even
> >an inch or so will hose the signal. I'm not familiar with a beverage
> >antenna,
> >but I'd assume it's just near water, not under it.
> >
> >On Monday 24 October 2005 12:47 pm, Lefczik, Larry D wrote:
> >> Just a wild idea-
> >> My property boarders on a small lake averaging 3-5 feet of fresh water.
> >> Sitting on the dock I look out over this vast openness and think there
> >> must be sum way to exploit it for radio antennas. I have thought about
> >> stretching a long wire to use as a Beverage type antenna, but I don't
> >> want to hang boaters or ice skaters. But, since the water is not salt
> >> water, hence, a dielectric, I got an idea of floating a wire just under
> >> the surface of the water by using floats every 3-4 feet.
> >>
> >> Am are way off base here? I have an idea how a Beverage works, but have
> >> not studied it in depth.
> >
> >No idea is a bad idea until it is proven to be bad.
> >
> >And thinking outside the box has led to some wonderful inventions.
> >
> >But, guys, isn't ground GROUND? Impure quite water conductive?
> >
> >Aren't E (RF) propagation waves caused mostly by voltage nodes...voltage
> >which would be very effectively shorted to ground by putting the hot wire
> >in the water (which with impurities is conductive)? And, where is the
> >other side of the coax or open-wire-line connected? ...ground, too?
> >
> >RF sometimes does the unexpected, but... ??
> >
> >But, as a dreamer/inventor myself, I see your point in trying to meld all
> >that water with a better RF antenna or RF transmission. I hope you succeed
> >in a great invention!
> >
> >David B.
> >w7dbh
> >Oregon
> >
> >
> >Note: There are very many ways & means of treating written text so it is
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