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Various systems were used. Directional radio systems like LORAN, radar systems, and optical/astronomical instruments in combination with chronometers were all used under differing circumstances. Radio and radar signals were affected by distance from the source and sometimes by weather conditions, and optical location was also impossible under circumstances like heavy cloud cover or fog.
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When people check in using gps they?
use a phone with GPS to post an online message revealing their location.
Is GPS blocker legal to use?
The legality of using a GPS blocker varies by country and region. In some places, it is illegal to use a GPS blocker because it can interfere with communication signals and pose a safety risk. It is important to check the laws and regulations in your area before using a GPS blocker.
When people use GPS to find a route from one place to another they are?
navigating
Who were the first people to use the GPS Receiver?
The U.S. military was the first to develop and use GPS technology in the 1970s for navigation and positioning purposes. It was later made available for civilian use in the 1980s.
When was the first GPS system made available to the public?
In 1983, the GPS ceased being solely a military system and was made available for public use.
