Why Does Navigation Show a Longer Distance Than Actual?

[DeNora]

Automotive navigation GPS uses satellites to measure the speed and distance of the vehicle while driving. This measurement method inevitably introduces latency, which naturally results in the navigation displaying a longer distance than the actual one. Most errors range between 2-3 km/h. Navigation is only a reference; if you are particularly concerned about accuracy, you can use a professional GPS device for testing. Tips for using car navigation: 1. Do not charge the navigation device directly via a computer USB port: Most navigation devices require a relatively high current, typically above 1.5A, while USB ports generally provide only 0.5A. The insufficient current makes charging impossible. Therefore, if you want to charge at home without a dedicated home charger for your GPS navigation device, you will need to purchase a compatible current adapter. 2. Do not search for satellite signals indoors: You need to be outdoors with a clear view of the sky to receive satellite signals, as indoor locations cannot pick up signals.