thebarks Posted March 14, 2003 Share Posted March 14, 2003 Is there a way to check if my GPS unit is functioning accurately? Lately, I've noticed that my unit seems to be not as accurate as in the past. And yes, I have new batteries installed. Any help? I have a Garmin Etrex. Thanks! Ubbnu!!!! Quote Link to comment
+Renegade Knight Posted March 14, 2003 Share Posted March 14, 2003 Check out some of your local benchmarks. Their locations are "Known" you can compair the location you get for the Benchmark against the location your GPS thinks it's at. Wherever you go there you are. Quote Link to comment
+jasonhuber Posted March 14, 2003 Share Posted March 14, 2003 I located a benchmark at the top of a mountain (ok hill, but mountain here) and took a photo of the mark and GPS. I was surprised to see it was EXACTLY right on. Rino120 Check out my list for the photo Quote Link to comment
+jeannine Posted March 14, 2003 Share Posted March 14, 2003 my company just bought GPS survey eqpt. when the guys we bought it from came to train our survey crews they set a benchmark in our parking lot ..i checked my GPS against it using UTM and i was 3' off ..made me pretty happy to have a $180 GPS that was so close to the $10,000 unit ...but say the GPS is off, is there a way to calibrate it? Quote Link to comment
Kerry. Posted March 14, 2003 Share Posted March 14, 2003 quote:Originally posted by jeannine:...but say the GPS is off, is there a way to calibrate it? No I never get lost everybody keeps telling me where to go Quote Link to comment
jfitzpat Posted March 16, 2003 Share Posted March 16, 2003 If you live near a military facility, you might want to call a flight service center and ask about any "GPS Notams" and "RAIM availability" for your intended location and time. The former will tell you if Uncle Sam is practicing something weird (been a lot of that around here lately) and the latter will tell you if good sat positioning is expected for the time/location you designate. -jjf Quote Link to comment
+Searching_ut Posted March 16, 2003 Share Posted March 16, 2003 quote:jfitzpat said: If you live near a military facility, you might want to call a flight service center and ask about any "GPS Notams" and "RAIM availability" for your intended location and time. There are several areas where Jamming occurs on a regular basis, some in areas I like to explore. To find out if there will be any problems with the system, besides calling you can check many of the different aircraft or marine navigation boards on the web. The one I use most is at: http://www.navcen.uscg.gov/gps/default.htm You can learn a lot about the system status here to include interuptions. Quote Link to comment
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