Seasonal changes or yearly changes to pool elevations - such as spring levels, summer levels, droughts or over abundance - are not reflected on our charting.
#Navionics android app gps position wrong full#
Please note that the Navionics charting (not including SonarChartâ„¢) for the freshwater lakes (not including the Great Lakes) are done in full pool elevation. So I emailed Navionics help line about the baseline to use for Lake Powell. Based on just looking at the corrected app map around Wahweap Bay and trusting my memory of the shoreline I am not convinced that 3600 is the correct baseline to use. I used 3600 and set the offset to minus 33 feet for recent elevation of 3567. I could not find anything in the Navionics app that stated what water level to start at for Lake Powell. I seem to recall seeing something on WW that you used 3600 as the base elevation to set your lake level offset with the Navionics Lake Powell map. I am not sure of what base elevation to use for the Navionics map of Lake Powell. Did not see the need for a fancy Humminbird on the houseboat but with the low levels this year I thought something for the houseboat was a good investment since before I was just flying by the seat of my pants. the mudflats outside of White, and the bitter ends of the Escalante and San Juan. It is incredible accurate until you get to a place that has had silting since the original pre-dam topograpy survey.
With the Lakemaster your lake level offset correction is from full pool 3700. I have been from Lone Rock to White Canyon and the backs of everything in between. I have a Humminbird Helix with the Lakemaster chip on the fishing boat. I just got the Vankyo Matrixpad S10 tablet and downloaded the Navionics app then downloaded the Lake Powell map for use when on the houseboat when out on the lake.