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Re: LF: Wire in the Air more info.

To: [email protected]
Subject: Re: LF: Wire in the Air more info.
From: "John Currie" <[email protected]>
Date: Tue, 05 Jun 2001 02:40:28 -0700
References: <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
Hi Laurie,   About your antenna .  Did you find that the extra wire allowed you to reduce your loading coil?  I am thinking about Big Pond again.

        I looked at my computer last night .  I couldn't find any images .  I probably didn't bother because I thought the frequencey was wrong,sri
         Saw nil last night I will look again tonight if you or Peter will tranamit, or anyone else for that matter .  Again I will be using 30 sec dots so all should be between 91.920 and 71.926 kHz  73 de John VE1ZJ

Laurie Mayhead wrote:

During the T/A tests last winter I ran out 2 additional radials 150 ft. long  into the sea water with 4ft long earth rods. Recently the grass had to be cut so I brought these radial in,carefully checking the Ant. current with and without the radials. NO DIFF!This brought me back to the" wire in the air theory" and I did somthing that I have been planning for some time. I added an extra 180 ft in the zig-zag configuration,in spite of the fact that Eznec recons that my top load is long enough to have linear current in the vert. section,and  no improvement to be gained from the additional wire in the air.(Rad. res. only increasing from 0.069-0.070ohms).   But Eznec doesnt adequately simulate currents in the ground at these frequencies. So I checked the Ant. current before and after. Before 3.2A after 3.7 Amps!!!Very worth while,and once again "Wire in the Air" is vastly superior to wire in the ground.,at my location at least. My 350mwERP is now 450mw ERP.Antenna now  48ft high, vert section 42ft from top of loading coil. Horizontal top 650 ft (apart from last 180 ft which slopes to 40 ft.Top wires in zig zag config.  73s Laurie.
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