Has anyone used a GPS attachment for a palm-pilot to check the altitude of an object? If so, are they reasonably accurate?. I've seen a GPS used to calculate altitude b4, but it was a more expensive model, I think.
Has anyone used a GPS attachment for a palm-pilot to check the altitude of an object? If so, are they reasonably accurate?. I've seen a GPS used to calculate altitude b4, but it was a more expensive model, I think.
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