Bike Forums - View Single Post - Garmin Computers: Is the speed sensor a must?

06-01-15 | 03:57 PM

#16

corrado33

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Joined: Jun 2013

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From: Bozeman

Bikes: 199? Landshark Roadshark, 198? Mondonico Diamond, 1987 Panasonic DX-5000, 1987 Bianchi Limited, Univega... Chrome..., 1989 Schwinn Woodlands, Motobecane USA Record, Raleigh Tokul 2

Quote:

Originally Posted by Seattle Forrest

I've been using the new Fenix 3 watch, and it has an entirely different GPS issue. It's never put my in the wrong county, but, instead, it cuts corners. It's like the thing can't accept or believe that I did a 90 degree turn, so it rounds it out some. It's still wrong, but it's an entirely different kind of wrong. Not that the system just had a glitch and I teleported to China for a split second, more like the software that asks "does this point make sense?" got it wrong. Here's what I'm talking about, I recorded these two GPS tracks together at the same time:

I bet the issue is with acquisition time. The Edge acquires more often, resulting in less "rounded" corners, where as the Fenix acquires less, cutting corners. In a straight line they're probably both pretty accurate. Around curves... not so much.

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