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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