The system is an update and replacement of the existing analog system called automatic picture transmission ( APT ), which has been used since the 1960s aboard NOAA's TIROS polar-orbiting satellites.
2.
In 1985, instruments such as the Automatic Picture Transmission Receiver, and the Radio Meter Sonde were set up to calculate wind velocities and solar intensities to determine the feasibility of generation of wind energy and solar energy . 2000 philatelic covers were cancelled, while videos were taken on the station.
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