Here is a great video showing how to activate the Sonar Chart layer on your Lowrance, Humminbird or Raymarine Chartplotter. This is the number one asked question that I have ran across at all of the shows or tournaments that we are set up at, especially for lakes such as Toledo Bend where so much data is stored on the Sonar Chart layer.https://www.youtube.com/watch?v=g6yC70y4upk
Lowrance, Simrad or B&G – press Menu, select Chart options, then scroll down or select View, choose Fish’n chip.
Humminbird – press the Menu button twice, go to the Chart tab, press the down arrow to Chart Select and choose SonarChart™ (FishN’Chip on older models).
Raymarine – press Menu, Presentation, Chart Selection, then choose SonarChart™.