make maps of ATV trails from GPS info ??
#1
#2
You will have some trouble there.
First is accuracy, all the commercial GPS have a built in error, this allows them to be accurate only about 100 foot radius. The error is sent from the Sats. this keeps any knuckle heads from using a GPS to guide bombs. The military ones are the super accurate ones. They filter that error and are accuracte to a couple of foot radius. The only way would be the combination of GPS with differantal LORAN.
100 radius could put you over a cliff or miss a trail by up to 200 feet. That's a pretty big distance if your in the woods.
That's the last I heard on these things anyway.
Smitty
First is accuracy, all the commercial GPS have a built in error, this allows them to be accurate only about 100 foot radius. The error is sent from the Sats. this keeps any knuckle heads from using a GPS to guide bombs. The military ones are the super accurate ones. They filter that error and are accuracte to a couple of foot radius. The only way would be the combination of GPS with differantal LORAN.
100 radius could put you over a cliff or miss a trail by up to 200 feet. That's a pretty big distance if your in the woods.
That's the last I heard on these things anyway.
Smitty
#3
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#8
GPS's are far more accurate that what the one dude said. With WAAS enabling I have had accuracy to 8 feet. If you have a Garmin model that does mapping you can use the Garmin MapSource to download your routes. I done tons and I post them on my site.
Here are a few:
http://www.ansley.net/pic.php?image=...01/gps_map.jpg
http://www.ansley.net/pic.php?image=...02/gps_map.jpg
Here are a few:
http://www.ansley.net/pic.php?image=...01/gps_map.jpg
http://www.ansley.net/pic.php?image=...02/gps_map.jpg
#10
I have a Lawrence GPS with a computer program called maptech which allows me to over lay topo maps with a bread crumb trail of any ride I take. The program also allows me to upload it from my GPS to my PC and then download it back to my GPS when I want to use it. The accuracy is fantastic. Another nice thing about the gps is it tells you how far you've traveled, the speed your traveling at and a great way to keep track of exactly were you’re at, when your in the middle of no where, in case of an emergency.