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Old 05-01-2013, 03:48 PM   #87
Ben E Lou
Morgado's Favorite Forum Fascist
 
Join Date: Oct 2000
Location: Greensboro, NC
Alan, you may have nailed it. I just re-drove the route with cellular turned off and Wi-Fi turned off, and all the iPhone apps measured it between 4.09 and 4.15. Now, there is the variable that this time the phone was sitting still on the dashboard of my car as opposed to jiggling in an armband, but this is encouraging. I will give it a try tomorrow with cellular turned off.

Also, for what it's worth, I did a little digging and found the suggestion to turn off cellular on an actual Apple support site page. Thanks a ton for the tip. I will be very happy if my run tomorrow measures out like I hope it will.
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