Tests conducted by researchers at the University of Texas at Austin have demonstrated that a wireless network can be used to jam GPS systems, potentially disrupting navigation and other location-based services.

The researchers set up a wireless network that transmitted signals on the same frequency as GPS satellites. When a GPS receiver was in range of the network, it was unable to receive the signals from the satellites and could not determine its location.

The researchers say that this type of jamming could be used to disrupt navigation systems in cars, ships, and aircraft, as well as location-based services on smartphones and other devices. They also say that the jamming could be used to track or even spoof the location of a device.

The researchers say that their findings have implications for the security of GPS systems and that steps should be taken to mitigate the risk of jamming. These steps include using stronger encryption on GPS signals, using multiple frequencies for GPS transmissions, and developing new techniques for detecting and mitigating jamming attacks.

The researchers say that their work is ongoing and they are continuing to investigate the effects of wireless networks on GPS systems. They say that they are also working on developing new techniques for mitigating the risk of jamming.