On Mon, 1 Jul 2013 11:06:47 -0400 Jaime Kopchinski <jaime...@gmail.com> wrote:
> You caught the biggest issue here, Tim... if you have visible sun, you > almost certainly have visibility to at least a few GPS satellites. > > But generally, in car navigation uses three things for positioning: > GPS, Wheel speed, and a gyroscope. Between these there, positioning is > very accurate even in challenging situations like in tunnels, inner > city, etc. Even without GPS signal, a well calibrated system will keep > its position very well for a long time. > > This is one huge advantage over the PND dash-top units that rely only on > GPS. PND? Craig _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
