|
All my GPS units advertise they are not 100% accurate. I have a Garmin that points out a position, then it also states that is can be off by 15% to 30%. How does the device know that it's gonna be off by that much? Since not knowing exactly where you are, it seems to reason that it's gonna be hard to know 100% of the time how fast you are going and how far you've gone.
Since GPS technology is not 100% and they admit it, I wouldn't worry about being off by a few miles any more than I think a published map is 100% correct. I used my GPS on a moving Amtrak train once and it was clocked at 92 MPH. While it might not have been 100% accurate it did feel a lot faster than when the SPS said 70 MPH. The numbers are fun to look at. Compared to a couple of decades ago, I like the technology better than not.
|
Hybrid Mode
