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FJR Motorcycle Forums
Technical & Mechanical Problems
Bubble GPS Spot Tracker (Spotwalla) w $0 subscription/fees
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<blockquote data-quote="nankoweap" data-source="post: 1093780" data-attributes="member: 29585"><p>He can. Let me see if he's around... Yep... Here he is...</p><p></p><p>With the exception of the DeLorme InReach device which provides speed data from the device itself, SpotWalla calculates speed from one location to the next using a simple time/distance equation. The time is accurate, but distance is straight-line distance between two points. For this reason speed data is an approximation and cannot and should not be deemed accurate. It is a good indication of movement. Nothing more.</p><p></p><p>For an app like Bubbler and devices like the SPOTs to accurately determine speed, it would have to sample the GPS a helluva lot more than it does now. Battery life would suffer. I'm unsure how DeLorme is calculating speed, but I'm assuming they sample the GPS data at a higher rate than a SPOT and provide the data in their KML because they feel it's relatively accurate.</p></blockquote><p></p>
[QUOTE="nankoweap, post: 1093780, member: 29585"] He can. Let me see if he's around... Yep... Here he is... With the exception of the DeLorme InReach device which provides speed data from the device itself, SpotWalla calculates speed from one location to the next using a simple time/distance equation. The time is accurate, but distance is straight-line distance between two points. For this reason speed data is an approximation and cannot and should not be deemed accurate. It is a good indication of movement. Nothing more. For an app like Bubbler and devices like the SPOTs to accurately determine speed, it would have to sample the GPS a helluva lot more than it does now. Battery life would suffer. I'm unsure how DeLorme is calculating speed, but I'm assuming they sample the GPS data at a higher rate than a SPOT and provide the data in their KML because they feel it's relatively accurate. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Bubble GPS Spot Tracker (Spotwalla) w $0 subscription/fees
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