On 2/5/07, Dexter Filmore <[EMAIL PROTECTED]> wrote:
This is me writing > >
>
> If your room layout allows it, a simple parabolic reflector put on the
> usual single vertical antenna can confine the signals to about a
> 90-degree sector, with a corresponding 4 times increase in
> sensitivity. That's 12dB. Also keeps the signals out of the street
> in front of the house.
Don't know about the situation over there in your parts, but as soon as you
go "parabolic" you blow the allowed EIRP and the device becomes illegal to
toperate - at least here in .de.
How does this differ in principle from going to the store and buying a
high-gain antenna? Either the taller cylindrical kind that sends less
of the energy into the space above and below the WAP, or the square
flat-panel antenna that has much the same cardioid pattern as the
parabolic reflector placed on a vertical antenna.
carl
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carl lowenstein marine physical lab u.c. san diego
[EMAIL PROTECTED]
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