Discussion
How accurate are current GPS systems. Borrowed a friend GPS over the weekend (not a satnav- a dedicated speed device) and was surprised at the difference in indicated speeds. I know speedo’s are supposed to read higher, but indicated 70mph on the speedo showed about 65/66 mph on the GPS and indicated 70mph on the GPS was nearer 77mph on the speedo .?
Just seemed a big difference
Just seemed a big difference
Sounds about right...
GPS should be pretty much bob on, on a flat, level, straight road...
The GPS speed is a little laggy too... it might take a second or two to settle down to the correct, accurate speed...
IE - nail your car upto 30mph, and you're likely to be doing over 30 by the time the GPS speedo read 30... If that makes sense...
GPS should be pretty much bob on, on a flat, level, straight road...
The GPS speed is a little laggy too... it might take a second or two to settle down to the correct, accurate speed...
IE - nail your car upto 30mph, and you're likely to be doing over 30 by the time the GPS speedo read 30... If that makes sense...
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