Why Does My Speedometer Reading Differs From GPS - Car Talk - Nairaland
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| Why Does My Speedometer Reading Differs From GPS by Fedrams: 3:58am On Sep 27, 2021 |
Good day my ppl, I decided to monitor the distance covered between Benin to Akure. My car speedometer was reading 177 km why my GPS was reading 254km. Why constitute the difference. Pls no that the car is calibrated in km. And I reset my trip to zero before I embark on the journey |
| Re: Why Does My Speedometer Reading Differs From GPS by aieromon(m): 5:30am On Sep 27, 2021 |
Fedrams: Odometer and GPS readings can never be the same. Odometer readings are affected by variations in the tire size, pressure and/or wear and tear since they measure tire rotations. GPS on the other hand can go out of sync if they do not receive constant coordinates from the satellite to calculate the actual distance between point A and B. They also tend to increase the mileage readings as they can use data points in close proximity which do not present a true reflection of your travel route. Looking at your data, I believe the GPS needs to be calibrated because the car odometer reading is closer to the actual distance between Benin and Akure. What type of GPS receiver did you use? 5 Likes |
| Re: Why Does My Speedometer Reading Differs From GPS by Aanumi16: 6:45am On Sep 27, 2021 |
Fedrams: Your car odometer is calibrated in Miles while the GPS is Km. 2 Likes |
| Re: Why Does My Speedometer Reading Differs From GPS by Fedrams: 7:42am On Sep 27, 2021 |
Gps car tracking quote author=aieromon post=106206454] Odometer and GPS readings can never be the same. Odometer readings are affected by variations in the car tires size, pressure and/or wear and tear since they measure tire rotations. GPS on the other hand can go out of sync if they do not receive constant coordinates from the satellite to calculate the actual distance between point A and B. They also tend to increase the mileage readings as they can use data points closest to you but not a true reflection of your travel route. Looking at your data, I believe the GPS needs to be calibrated because the car odometer reading is closer to the actual distance between Benin and Akure. What type of GPS receiver did you use?[/quote] |
| Re: Why Does My Speedometer Reading Differs From GPS by aieromon(m): 8:38am On Sep 27, 2021 |
Fedrams: Generally, GPS trackers overestimate distance covered but this one has poor accuracy. Your odometer reading is closer to the actual distance covered. You can compare with your phone GPS. |
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