Elog satnav.

I was listening to a program on BBC radio 4 last week called ‘50 things that changed the world’ and the guy was saying that SAT NAV relies on just 24 satelites and it would only take a small meteor hit to take out the whole system and render such devices useless.
Our wonderful company provided navigation system is totally pointless for most routes and I have also tried comparing it with the system on my iPhone on my most common route it sends trucks miles off route, in fact one of our drivers gran out of time recently because she didn’t get to her destination on time, the sat nav sent her through two cities and sent her right past the main route in Vermont because of a height restriction on the navigation system, the limit shown was 14’6" which is ridiculous because the natiowide limit is 13’9" and our trucks are only 12’6" high :smiley: :smiley: