Question

True or False: Global positioning system (GPS) signals are limited if users are in areas such as underground tunnels, buildings, or underwater.

Answer 1

• True
• GPS is a system of orbiting satellites used for navigation purposes and capable of giving highly accurate geographic co-ordinates using hand held receivers
• GPS system is a set of satellites which allows receivers to determine their exact location 24 hours a day
• Buildings, terrain, electronic interference, or sometimes even dense foliage can block signal reception, causing position errors or possibly no position reading at all. GPS units typically will not work indoors, underwater or underground.