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  #1  
Old June 18th, 2019
dtgriffi dtgriffi is offline
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Question GPS Speed Error

My GPS speed has a +1 mph error. It registers zero when stopped, so it likely isn't an offset error, or it is but the display is incapable of showing -1 mph. It is +1 at all times and all speeds through 70 mph.
I have verified it against known good radar sources and another GPS device.

Has anyone seen this before? It has all updates since purchase in March. What effect if any would this have on location?
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  #2  
Old June 19th, 2019
GumbyDammit223 GumbyDammit223 is offline
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I don't think commercial GPS units claim better than a couple MPH accuracy anyway. I've always noticed a +/- couple MPH difference since Day 1.
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  #3  
Old June 19th, 2019
Bigdog9586 Bigdog9586 is offline
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I have 3 escorts and they all show 1 mph off from car and real gps.
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  #4  
Old June 21st, 2019
Whiskey Bravo Whiskey Bravo is offline
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Default Gps

My new 360c is +1 all the time also.
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  #5  
Old June 25th, 2019
er95 er95 is offline
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+1
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  #6  
Old June 26th, 2019
ThomThom ThomThom is offline
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My Max 360 is spot on with the speedometers in both my 2004 Jeep Liberty Renegade and my 2014 Nissan Altima. My 9500ix is -1 mph with both vehicles.
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