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Old 06-12-10, 02:44 PM   #1
Long Run Nick
Long Run Nick
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More accurate: Garmin GPS (305) or Bontrager Wireless 4W?

I have used Garmin GPS for my running since they came out with the "brick"-- Garmin101 more than a few yrs ago. Found it to be extremely accurate most of the time. I have used my 305 while riding a few times and noticed that the Garmin shows more distance than the wireless on the bike. More times than not--when I stop and stop the watch I forget to push the button to start riding again so it makes my tests useless. I know there is a pause feature with the Garmin--just haven't programmed that in.

Jeez, a lot of words for a simple question: GPS more accurate than wireless bike computer? Thanks for your responses. Nick
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Old 06-14-10, 05:14 PM   #2
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It can be more accurate - if you do not tell the standard computer what wheels you have. But if you measure the distance your bike goes in one complete wheel revolution accurately - I would say that the standard computer is more accurate. This is because there is error built into the GPS system. The military negates this error by broadcasting atomic clock data over a secure encrypted frequency. But unless you have an atomic clock on your bike - even under the best conditions you will have about 10 feet position error.
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