[TowerTalk] K3BU salt water

[K3BU@aol.com]

Hi Steve,
thanks for insight. I wonder if your submerged radials, fluctuation of swr is 
caused by salt water "shorting out" the lead to your ground and radials. 
Would you want to try to suspend two radials, elevated above water and see if 
tide does it? I would guess that not (as much).

Any feeling how they work on the path over salt water vs. over land? Which 
way is the water?

Thanks, Yuri


In a message dated 9/21/2000 8:37:21 AM Eastern Daylight Time, 
ryansci@InfoAve.Net writes:
> 
>  My 160M inverted L is mounted on the end of a pier about 150 feet long. 
The 
>  ground side of the L
>  is attached to a 1 inch flat braid attached to a ground rod driven into 
the 
>  ocean floor. Attached to the
>  ground rod are 4 1/4 wave radials laying on the ocean floor. The antenna 
is 
>  fed with a 50ohm:12.5ohm UnUn.
>  The SWR fluctuates about 30 kHz from low tide to high tide (average of 6 
>  feet from low to high). I manage
>  the fluctuation with a tuner. Although the vertical part of the antenna is 
>  only about 50 feet high, it works
>  VERY well. You might have heard my signal before.
>  
>  With regard to 80 and 40 meters, I have two F12 verticals, each mounted on 
>  a pipe driven into the salt water but
>  attached to a seawall. I use two elevated 1/4 wave radials for each 
>  antenna. The SWR is NOT affected by
>  rising or falling water in this case. These antennas also work VERY well.
>  
>  Good luck with your project.
>  
>  73, Steve AA4V

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