FIELD: antenna equipment.
SUBSTANCE: invention relates to antenna technology and can be used by ground stations for receiving signals of an automatic dependent surveillance broadcast type. Task is achieved by the introduction into the scheme of the antenna device of an additional sector antenna having a width of the radiation pattern in an elevation plane of at least 90° in a direction perpendicular to the surface of the earth, and located so as to ensure the overlapping of its DN of the dead zone of the antenna of the ground station AZN-B.
EFFECT: reduction of the dead zone (funnel) to a minimum, in which the ground station does not receive AZN-B signals from the station.
1 cl, 4 dwg
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