Originally Posted by James1549
I'm in the same boat as Rush, my career depends on my CDL, although I am not a truck driver. But coming home from the Dream Cruise I managed to tag along with a few others.
I have two Garmin GPS, one for the car and one handheld. the handheld is handy because it 'tracks' where you have been, then you upload the 'trail' to your PC and view it on a map or Google Earth.
Neither are never accurate on Max Speed. I can reset them, drive to work, drive no faster than 45mph, and get a Max Speed reading of 90 or more. I assume when it looses signal for a short time then catches up, it thinks you really went fast.
James
No offense is ment by the following comment, but I'm not crazy/dumb enough to try to take a pic of my speedometer while I'm driving.
I'd be too afraid that would be the time the trafiic around me decides to do something retarted, like suddenly change lanes, or slam on their brakes.
Anyway, my GPS, a Garmin, is always pretty accurate.
I don't think that it's ever been off by more then one mile an hour.
EDIT: spelling & an addition