In 1995, the Global Positioning System (GPS) became fully operational, revolutionizing navigation and location tracking. Developed by the United States Department of Defense, GPS consists of a constellation of satellites that transmit signals to receivers on the ground, enabling precise determination of location, velocity, and time. For amateur radio operators, the availability of GPS technology opened new possibilities for activities such as mobile operations, contesting, and emergency communication. GPS integration into amateur radio equipment allowed for accurate location reporting, facilitating systems like Automatic Packet Reporting System (APRS). The operational GPS has since become an indispensable tool, enhancing the functionality and versatility of amateur radio practices globally.
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