Furuno FSS-3BB, Operator'S Manual

Page: 33 / 121

1. OPERATION
1-21
1
1.13 Zoom Modes
The zoom modes (displays) expand the specified area of the single frequency echo.
Four modes are available: bottom lock, bottom zoom, marker zoom, and bottom dis-
crimination. The default mode is bottom lock. Zoom modes can be shown over the en-
tire display, as well as the combination display. See section 4.7.7.
Note: The display modes to use, including single display zoom, can be set from the
menu. See section 4.7.7.
To select a zoom mode, do the following:
1. Click the [Sounder] icon ( ) from the InstantAccess bar™ to show the [Sounder]
menu, then click the [Zoom] mode icon ( ). [ZOOM MODE] appears in the mis-
cellaneous section of the header.
2. Scroll to show the desired zoom mode. The four modes are shown in abbrevia-
tions.
1.13.1 Bottom lock mode
Bottom lock display provides a normal picture on the right-side of the screen and a
magnified picture on the left-side of the screen. The zoomed area shows a smooth
seabed, making it easier to detect fish near the seabed.
Note 1: The range for the zoom display can be adjusted from the [Range] menu. See
section 4.7.1.
Note 2: The zoom marker encloses the zoomed area. The marker can be shown or
hidden with [Zoom Marker] in the [Display] menu. See section 4.3.
• BL: Bottom Lock
• BZ: Bottom Zoom • MZ: Marker Zoom
• BD: Bottom Discrimination
[ZOOM MODE] indication
Smoothed
seabed
This area
is zoomed.
Bottom lock zoom
mode displayed Un-zoomed single
frequency displayed
Zoomed echoes
Zoom marker