Roughness Graph - Furuno FCV-38 Manual

2. GRAPH FUNCTIONS
2.6.2

Roughness graph

The [Roughness Graph] plots the estimated seabed roughness as a solid line graph
(line color: pink) along the bottom of the screen. The graph indicates estimated bottom
contour, to alert you to seafloor roughness before you drop your fishing gear.
to show the [Hardness Graph], do the following:
1. Click the [Graph] icon (
menu.
2. Click the [Bottom Information] icon (
icon changes to a green color and the [Roughness Graph] appears.
To hide the roughness graph, click the "Graph" icon on the Instant Access Bar™, then
click the "Bottom Information Graph" and "Roughness Graph" icons.
2-14
) from the InstantAccess bar™ to show the [Graph]
) by the [Roughness Graph] icon ( ). The