Re: Wildtronics a good product?

[m_pesente]

Bruce,
you write at your website that =94Gain, for an ideal 22-inch dish with a pe=
rfect parabolic shape and focus, is characterized by a curve starting at 0d=
B at 200Hz,

The Macauly Library says that: =94The diameter of a parabola determines the=
 lowest frequency sound that a parabola can amplify. If the wavelength of a=
 sound wave is greater than the diameter of the parabola, the sound wave wi=
ll not be captured or amplified by the parabola.=94

The wavelength of 200 Hz is 1,7 meters. Hence, a parabola capable of (start=
ing) amplifying at 200 Hz must have a diameter of 1,7 meters =3D 67 inches.

The wavelength of 400Hz (where you claim that your 22" dish has 6 db amplif=
ication) - is 0,85 meters =3D 33 inches.

Can you explain?

Marco