Method for tracking antennas located in movable object, e.g. vehicle or train, to main transmitter, e.g. satellite, involves squint at given angle at detection satellite, off-set relative to main transmitter

摘要

A procedure for tracking, adjusting or correcting an antenna (3) located in/on a movable object, to a main transmitter e.g. reception satellite (1) using a feed system (14). An antenna with at least two supply/feed systems (14;16;18) is used for tracking the antenna. The principal direction of the main beam of the second of the feed systems (16;18) is adjusted by squinting at an angle (alpha) at a detection satellite off-set relative to the main transmitter. The adjustment or correction of the antenna to the main transmitter for receiving a program beamed from the main transmitter results in relation to the reception-signal level and/or the reception-signal level difference of the second feed system. An Independent claim is given for a device for tracking, correcting or adjusting an antenna located in or on a movable object.