4G GPS Tracker.Why does the GPS signal weaken or even disappear completely

　　The GPS locator receives signals transmitted from the satellite. Due to the power and distance of satellite launches, the signal is thousands of times smaller than that of nearby broadcasting stations. GPS locators require complex techniques to extract the received signal.

　　What factors will weaken GPS signals when encountering them?

　　1. GPS satellite signals need to penetrate the entire atmosphere and experience significant attenuation.

　　2. GPS satellite signals will not penetrate any metal objects, resulting in a complete lack of GPS signal

　　3. Passing through water can also weaken the GPS signal. When the thickness of the water reaches 1 centimeter, it will completely block the GPS signal

　　4. Heavy non-metallic objects, such as walls, can completely block GPS signals

　　5. Dense trees can weaken GPS signals

　　6. A completely enclosed space can block GPS signals. Such as indoor, tunnel, underground parking lot, etc

　　7. The influence of weather factors. Such as sunspots and adverse weather conditions may reduce GPS signals

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