Welcome to Motorhomefacts, we are a thriving motorhome community (Largest in Europe). Why Not JOIN NOW and get instant access to more of the website. It costs nothing to join and only takes a few minutes. We have 200,000 different people visiting our site monthly and this amount of motorhomers in one place guarantees a fast response to any questions you may have. We also have unique facilities not found elsewhere such as our Online Logbook, stopover tracker, Motorhome directory with Ebay type feedback and the largest repository of motorhome campsites reviews found anywhere
Likewise, our speedo is about 3 or 4 mph faster than satnav and so are several friends motorhomes. I believe the satnav once it is steady, it make take a second or two be accurate as it collects info from the satellites. ( I think) I often drive on motorways with the HGV,s and many have their speed governed at 56 mph. When I do this the sat nav always says 56mph and the speedo about 60 or just under. I go for mile after mile with the lorries who are obviously travelling at their max governed speed.
Almost all factory fit speedometers read faster than the actual speed of the vehicle. That's why most police vehicles have a second, validated speedo on board. I think the law allows for speedo inaccuracy if they are over but forbids the manufacturers to under-report the vehicle speed.
At a constant speed, on a level road, the sat nav will give an almost perfect speed reading.
It is often interesting in average speed control areas. Those with their Sat Navs running pass those using their speedo's, including myself. That is where you discover that as you overtake, all the others running on SatNav speeds, are travelling at the same speed that you are.
Alan
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You cannot download files in this forum
All times are GMT + 1 Hour Page 1 of 2Goto page 1, 2Next
UK
