GPSvastuvõtjad
GPSvastuvõtjad, also known as GPS receivers, are electronic devices that determine their location on Earth by processing signals from satellites. These devices are a fundamental component of the Global Positioning System (GPS), a satellite-based navigation system owned by the United States government and operated by the United States Space Force. A GPS receiver typically consists of an antenna, a receiver unit, and a processor. The antenna captures radio signals transmitted by GPS satellites, which contain information about the satellite's precise location and the time the signal was sent. The receiver unit decodes these signals, and the processor calculates the receiver's position by measuring the time it takes for signals from at least four different satellites to arrive. This measurement, known as trilateration, allows the receiver to pinpoint its latitude, longitude, and altitude. GPSvastuvõtjad are used in a wide range of applications, including navigation in vehicles and on handheld devices, surveying and mapping, precision agriculture, emergency services, and tracking of assets. Modern GPS receivers are highly accurate and can provide position information within meters or even centimeters, depending on the type of receiver and the environment. They have become an indispensable tool in many aspects of modern life, facilitating everything from daily commutes to complex scientific endeavors.