NationMaster - Encyclopedia: Antenna effective area

In telecommunication, antenna effective area is the functionally equivalent area from which an antenna directed toward the source of the received signal gathers or absorbs the energy of an incident electromagnetic wave.

Note 1: Antenna effective area is usually expressed in square meters.

Note 2: In the case of parabolic and horn-parabolic antennas, the antenna effective area is about 0.35 to 0.55 of the geometric area of the antenna aperture.

Source: from Federal Standard 1037C

Results from FactBites:

FCC Fact Sheet on Placement of Antennas (5266 words)
	For a digital antenna to receive or transmit an acceptable quality signal, the antenna must be installed where it has an unobstructed, direct view of the satellite or other device from which signals are received or to which signals are to be transmitted.
	An antenna that extends out beyond the balcony or patio is usually considered to be in a common area that is not within the scope of the rule.
	Effective January 22, 1999, renters may install antennas within their leasehold, which means inside the dwelling or on outdoor areas that are part of the tenant's leased space and which are under the exclusive use or control of the tenant.

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