First GPS Signal Transmitted and Received, July 19, 1977

The world's first Global Positioning System (GPS) signal was transmitted from Navigation Technology Satellite 2 (NTS-2) and received at Rockwell Collins in Cedar Rapids, Iowa, at 12:41Β a.m. Eastern time (ET).

The world's first Global Positioning System (GPS) signal was transmitted from Navigation Technology Satellite 2 (NTS-2) and received at Rockwell Collins in Cedar Rapids, Iowa, at 12:41Β a.m. Eastern time (ET).

Date: July 19, 1977

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