Furuno MFD8 Guía Del Usuario

7.  Fish Finder

Use the manual operation to see schools of fish and the bottom echo with a fixed gain 
setting.

The gain, range and range shift functions let you select the depth you can see on the 
screen. The basic range provides a "window" into the water column and range shift 
moves the "window" to the depth that you select.

Use the RotoKey to select [Auto] followed by [Off].

Operate the RANGE key to select a range, that is, the maximum depth to display. (The 
range cannot be changed in the automatic mode.) 

For the DFF series/FCV-1150, range can be selected automatically or manually. 
Push the RotoKey to show the soft controls. Select [Auto Range] then push the Ro-
toKey to activate or deactivate.

You can set the range individually for high and low frequencies. Activate the dual fre-
quency mode, turn off auto range and then do the following:

1.

Push the RotoKey.

2.

Rotate the RotoKey to select [Split Range] followed by [HF] or [LF]. 

3.

Push the RANGE key to choose range for selected frequency.

To set the range for high and low frequencies together, use the RotoKey to select [In-
dividual] then [Off].

The basic range and range shift functions let you select the depth you can see on the 
screen. This function is not available when the Auto range mode is active.

Operate 

S or T on the ScrollingPad to shift the range.

Display

Window can be 
shifted up and 
down to select 
starting depth.