Hello, I wanted to ask a question regarding a feature that I seem to be hearing a lot about regarding GPS’s. I recently received a new GPS, an E-trex Ventura. The feature in question is “WAAS”. My limited under standing is that it improves locating where you are down to less than a few meters. When I turn on my GPS and it has acquired the satellites, and I have the map page up I notice that when I am at a way point, the curser drifts around the way point even though I am not moving. I have the WAAS feature enabled; I had thought that this would nail my location to the way point location. Could someone explain to me what to really expect when using a new GPS just how accurate they really are? Thanks for your help.
Buy_The_Tie WGA Member
Location: New Berlin, WI
Sat Aug 08, 2009 8:13 pm
It is my understanding that the WAAS satellites are best when you are nearer one coast or the other, not in the middle. It is my understanding that the WAAS satellites can be picked up here in the midwest, but you need to be standing out in the wide open to get any benefit.
I think that most geocachers turn the WAAS feature off, because some believe (correctly or incorrectly, I don't know) that it actually decreases your accuracy when you are in the woods.
My information is old and coming from the deep dark recesses of my brain. Maybe somebody else has some more good information on it.
Averith WGA Board Member
Location: Sheboygan, WI
Sun Aug 09, 2009 4:54 am
Here's a link to Garmin's site that has some additional info which pretty much echoes Buy_The_Tie's post. It also has pictures, and how can you go wrong with picture?
_________________ The post above is purely the opinion of the poster and is no way connected to the opinions of the WGA Board.
Bushwhacking Unnecessarily Since 2006!!
DON WGA Member
Sun Aug 09, 2009 5:40 am
Thank you for the feed back, and the link to Garmins web site. I had an older etrex that I used for hunting and kayaking, and I had never noticed the drifting before. I was concerned that my new E-trex Ventura might have been defective. I am still learning all the bells and whistles that this unit has over my older unit.
cheezehead WGA Member
Location: Hayward, WI. USA
Tue Aug 11, 2009 8:34 pm
I think that WAAS DOES help. A local cacher had it disabled on her Map76csx and her posted coords were always about 45' off, but had no problems dnding here caches last weekend.
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