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Is it me or does wind effect GPS readings. I went to find a quick cache tonight and the GPS just jumped all over. 8 feet, 40 feet, 12 feet, 90 feet. So does wind throw off readings or is my GPS just whacko?
It may have something to do with the iron deposits in an area or something to that effect.
I have had that happen many times out on the trail. It helps to stop and set the GPS down for a minute or so to let it settle down.
Another likely cause is that the winds are changing the cloud cover and thus changing satellite signal strength at your GPS receiver. We sometimes see this effect with commercial radio and TV signals. The wind itself does not affect radio signals, but the stuff the wind moves can. ~tb
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Originally posted by Miata:
It may have something to do with the iron deposits in an area or something to that effect. B]Interesting you should mention Iron Ore Deposits. I have a cache in northern Minnesota that is consistantly within 8 feet of my GPSr readings every time I check on it. That makes it my most accurate.
Oh, I almost forgot, it’s placed atop a 500′ high x 1 mile long iron ore waste pile. That means low grade iron ore. Of course at 500′ additional elevation, I am closer to the satelites.
So much for my theory. I have seen some crazy things happen with my GPS, but dismiss them as wierd occasional quirks.
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Originally posted by rogheff:
Interesting you should mention Iron Ore Deposits. I have a cache in northern Minnesota that is consistantly within 8 feet of my GPSr readings every time I check on it. That makes it my most accurate.Oh, I almost forgot, it’s placed atop a 500′ high x 1 mile long iron ore waste pile. That means low grade iron ore. Of course at 500′ additional elevation, I am closer to the satelites.
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