GPS jamming has made navigation hazardous in the Gulf, spurring efforts to develop alternatives.
Daniel Matos, Joshua Cowley and Keith Preddie are found guilty of killing the 19-year-old in a park.
The experts have their say after an Amazon delivery driver got stuck in mudflats this week.
Using satellite tracking collars on cattle near Chipping Norton increases the amount of land that can be grazed.
Nigel Beecroft, from Harborne, spent nearly two years running along every street in the city, covering 2,500 miles in the process.
The farm is experimenting with special GPS enabled collars, which control the movement of cattle.
Mobile GPS technology is being used to alert volunteers within 500m of a medical incident.
Nearly all of the surgeries are already developing expansion plans.
A council says two to four fall into the water in a city centre during grazing season each year.
