Re: [TenTec] 160 M antenna

[Steve Hunt <steve@karinya.net>]

Actually, Rrad is less that of the 0.075 wavelength vertical section 
because you've ignored the opposing currents in the radial "hat" wires.
With 16 buried radials - averaging 30ft to 40ft long - the efficiency 
came out at 70%.
Steve G3TXQ



On 09/11/2013 16:24, Jim Brown wrote:
> While your design certainly has merit, radiation resistance is still 
> small -- it's that of the 0.075 wavelength vertical section. 
> Electrically short verticals are thus extremely dependent on excellent 
> radial systems.
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