Posts: 412
Location: Waukesha, WI | ManitouDan - 11/27/2006 5:54 PM
I need reliability within a few feet
I'm quoting Lowrance as it is the only product I have used.
http://www.lowrance.com/Support/FAQ/gps_faq.asp#gpsaccuracy
With the elimination of Selective Availability, GPS accuracy is typically within 10 to 20 meters, and with the help of WAAS, accuracy can be well below 10 meters.
http://www.navionics.com/PremiumLakeList_06.asp?RegionID=5
lists Manitou in Quebec.
My Lowrance LMS480M GPS/sonar shows a triangle for boat location and direction as well as the trail. You have to be careful on the zoom scales and GPS accuracy. As for detail that a map might not show etc, I use MapCreate to add/remove GPS points, trails, routes, and more. It's pretty nice to mark the launch and lodge locations too.
HTH, Mike |
