Not all countries offer an online method to contact Consumer Affairs. If your country is not listed please click here to contact the U.S. Consumer Affairs, they will direct your comments to the appropriate department. 1  Argentina : (Pay Line) 0-810-444-0057. 2  Australia: 1-800-802-307.
A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves.The most common form is shaped like a dish and is popularly called a dish antenna or parabolic dish.n advantage of parabolic antennas is that most of the structure of the antenna (all of it except the feed antenna) is nonresonant, so it can function over a wide range of frequencies, that is a wide bandwidth.
Definition of parabola. 1  1 : a plane curve generated by a point moving so that its distance from a fixed point is equal to its distance from a fixed line : the intersection of a right circular cone with a plane parallel to an element of the cone. 2  2 : something bowl-shaped (as an antenna or microphone reflector)