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Re: [TowerTalk] ant model gain

To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] ant model gain
From: Terry Conboy <n6ry@arrl.net>
Date: Mon, 02 Jun 2008 12:24:44 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
At 07:43 AM 2008-06-02, Al Williams wrote:
>Is the gain reported in antenna models a gain of: E (electric 
>field), I (magnetic field), or W(watts-W=EI)?

Normally, the gain is for the far-field pattern, where E/H = 377 
ohms, so the field patterns and the resulting gains are essentially identical.

>Also, Is the S meter in receivers in E (S9=50 microvolts) still in E 
>when the scale switches to  x DB over S9?

Contrary to popular imagination, there is only one kind of decibel, 
not one for V (and I), and another for P.

73, Terry N6RY

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