[TowerTalk] insulated wire as radials and antennas.

[Jerry Keller - K3BZ]

I have 100 BARE COPPER radials pinned to my lawn and waiting for Spring growth to absorb them into
the thatch.  Do I have to worry about small animals or my XYL walking out there when I'm
transmitting?  Or is the concern only when the radials are elevated?

73,  Jerry K3BZ

----- Original Message ----- 
From: "Tom Rauch" <w8ji at contesting.com>
To: <jimjarvis at ieee.org>; <towertalk at contesting.com>
Sent: Tuesday, February 22, 2005 2:20 PM
Subject: Re: [TowerTalk] insulated wire as radials and antennas.


>> To which I have to append...that's 600V @ 60Hz!  God knows
> what it is
>> at 7 MHz.
>
> It's a whole lot higher than 600 volts. 600V is the listed
> insulation rating, not the breakdown voltage. Fresh
> insulation would hold off at least a few kV peak. The
> wire-to-wire voltage, especially considering phase
> difference is not likely to be 180 degrees,  must be
> considerably higher than a few kV in order to burn through
> two layers of insulation. Frequency doesn't matter a great
> deal.
>
> This is why a few sparse radials often are several dB down
> from a large ground system.
>
> 73 Tom
>
>
>
>
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