dougdeep said:I'll stick to my map books.
Leekbrookgull said:Ever tried reading a map?
algie said:What about tunnels like Dartford?Do you lose signal and have to re program it again for your destination?
MYOB said:It stores where you're going, but yes, you lose signal for the time you're in the tunnel.
dougdeep said:Radios and phones work in the Dartford tunnel.
MYOB said:Radios and phones don't send signals >12,000 miles and rely on line-of-sight.
The only signals you'll get in your average tunnel are "DGPS", Differential GPS signals that are used to increase accuracy in some areas. I think these exist in London, so you might get a reading of some kind.
BarrelofFun said:Is the Tom tom one where you can select either Male or female voices?