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SonarChart Live With Tide Correction and Water Level Correction
With our SonarChart™ Live feature within the Navionics® Boating app or with compatible GPS chartplotters, you can set automatic tide adjustment (coastal) or manual water level adjustment (inland lakes & rivers). SonarChart Live will subtract the tide height (or manual water level offset) in real time from the data recorded from your sonar transducer. The contours drawn will reflect depths adjusted for low tide using a nearby tide station verified by you.
When a Wi-Fi sonar device is detected as connected, the SonarChart Live recording will start. You will then be asked where you are traveling: Marine or Inland. If Marine is chosen, you will be shown available nearby tide stations from which to make your selection. Depending on your location, for example the proximity to an inlet, the closest tide station may not always be the most appropriate tide station.
Should you wish to avoid correction of any kind, simply tap the X to close the window and no adjustment will be applied to your SonarChart Live view.
Within the Boating app, depth information collected by using SonarChart Live is shared with Navionics to create SonarChart, our HD bathymetry layer available for both plotter and mobile charts. The depth information comes to Navionics without tide correction or manual water level offset. Navionics applies water level offset or tide adjustment to the raw data during normal processing procedures before SonarChart updates are issued.