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Topband: Modeling the proverbial "vertical on a beach"

To: <topband@contesting.com>
Subject: Topband: Modeling the proverbial "vertical on a beach"
From: "k1fz" <k1fz@myfairpoint.net>
Date: Sun, 17 Aug 2014 15:49:30 -0400
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Years ago when I was working the 80 meter DX from the mobile, beyond working VK6LK long path, I was checking out salt water locations.

I found that the closer I got to the East facing salt water, the stronger Europe-Africa received signals. Getting right up to the water edge was noticeable better than 10 feet away. The truck body capacity to the wet Earth below also had to be a factor.

Like with the SWL/ham DXers guys, there were variables.

If you want to get the straight first hand information, I recommend taking your vehicle to the sea side. Tune the AM radio to around 1500 to 1700 KHZ., Find some stations from across the sea. and find out for yourself. Vertical signals travel in the direction(s) of best conductivity

Still time to take that vacation to the coast

.

73
Bruce-K1FZ








Here are a few conclusions:

* The advantages of being at the shore are substantial in the
pre-sunset period along east-facing shorelines and post-sunrise along
west-facing shorelines.  Saudi Arabia 1521 (2 megawatts) can be heard
up to 4 hours pre-sunset in autumn / winter right at the shore in New
England and Atlantic Canada, even with modest antennas.  At sites even
just 10 miles (16 km) inland, two hours pre-sunset is about as good as
you get on similar "compromise" antennas.  Here's a typical
Massachusetts coast recording of the 1521 flamethrower:
"
Mark Connelly, WA1ION
South Yarmouth, MA




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