15. NAV TOOLS
The Nav tools are a suite of tools that facilitate various navigation functions. These are
• TT/AIS (see chapters 3 and 4)
• Parallel index lines
• Check area
• Range rings
• Predictor
• Anchor watch
• Under keel clearance
15.1
How to Access the Nav Tools
The [Overlay/NAV Tools] box is located at bottom-right position on the screen. Use the
page selection buttons to select desired page.
Page name
Overlay/NAV Tools box (Check Area page)
Minimize button
Page
selection
buttons
15-1