[TowerTalk] fresh water grounds

[WD0M]

PY3CEJ uses a fresh water lake and has a 160 vertical in the middle of it - 
an amazing setup - he has a well that goes under the vertical for the 
"other half" of the vertical, as well as other grounds.  I worked him when 
in Alaska on 160 meters, and was astounded by the signal from Brazil.  He 
sent me some pictures of his antenna setup - not sure if there is anything 
on the web about it, but it sure works!

73,
Joe
WD0M (ex-WL7M)


At 04:20 PM 12/9/2003, Jim Jarvis wrote:

>Van wrote:
>
>" I live 200 feet out on a point =
>in a very large lake and 200 feet of coax would get me to the end of the =
>40 foot dock. Part of the dock is covered with a metal roof which might =
>cause some problems but would a 1/4 wave vertical for 75 meters  with =
>several wires into the water provide an effective RF ground field? =
>Anyone have any thoughts or experience on this subject."
>
>There was a guy in CO2 land who wrote a piece for CQ a couple years
>back, where he sunk the lower half of a vertical dipole in his
>lake, to see what happened.  I don't recommend you ask him this question!
>
>Fresh water doesn't conduct well...it depends on the amount of dissolved
>material in ionic form.  How fresh is fresh?
>
>My guess is, it should play just fine, if you get a reasonable number of
>radials under it. 4 is a minimum...12-16 is a reasonable number. But the
>same system over salt water would be many times better.
>
>It's fairly certain that being IN the water is better than being in
>land with low moisture content.  So it's worth doing.
>
>Jim Jarvis, N2EA