GPS speedometer replacement (update)
After a lot of crawling around and investigation I have had it with trying to get my VDO speedometer working right. I am going to go to a Speedhut Legacy 0-100 mph gps speedometer. A simple install a...
Forum Discussion
- GPS signals do travel at the speed of light (all radio waves do).
- There is no significant delay (at least that should be of concern for driving an RV). Tyically about once per second, the GPS compares the current position to the last position and based on the difference covered, calcualtes a speed based on the distance covered. There is no significant processing delay.
- GPS is the correct speed. The speedo is the one that is wrong.
- If you go thru a tunnel, check the tackometer and hold it steady and you should be fine as long as you don't shift.
- There is no significant delay (at least that should be of concern for driving an RV). Tyically about once per second, the GPS compares the current position to the last position and based on the difference covered, calcualtes a speed based on the distance covered. There is no significant processing delay.
- GPS is the correct speed. The speedo is the one that is wrong.
- If you go thru a tunnel, check the tackometer and hold it steady and you should be fine as long as you don't shift.
