Raymarine DSM25 - Zoom; Adjusting the Zoom

Chapter 3: Using the Sounder Module 33
3.5 Zoom
.
The DSM25 automatically keeps the bottom image in the lower half of the
window. When you need to see more detail of the bottom structure or targets, you
can zoom in and enlarge a portion of the image. This zoom range box can either
replace or appear alongside the standard sounder image.
The default setting is OFF.
Adjusting the zoom
1. Press ZOOM.
2. Toggle to:
• ZOOM ON to replace the standard fishfinder image with a zoomed image.
• ZOOM SPLIT to display both the standard fishfinder and a zoomed image.
3. Toggle ZOOM FACTOR TO SELECT:
• X2, X3, or X4 for a predefined zoom level. The greater the factor, the
smaller the area you are viewing and therefore the smaller the zoom box.
D8219-2
ZOOM
ON SPLIT OFF
ZOOM FACTOR
x2 x3 x4 xR
ZOOM RANGE
20ft
ZOOM POSITION
AUTO MAN
ZOOM START
20.0ft
SETTINGS
SETTINGS
BOTTOM
LOCK
BOTTOM
LOCK
PRESENTATION
PRESENTATION
D7913-1
43.0
36.4
49.6
56.4
200 kHz
ZOOM RANGE
10ft
ZOOM RANGE
10ft
ZOOM START
36.2ft
ZOOM START
36.2ft
ZOOM
ON SPLIT OFF
ZOOM
ON SPLIT OFF
ZOOM FACTOR
x2 x3 x4 xR
ZOOM FACTOR
x2 x3 x4 xR
ZOOM POSITION
AUTO MAN
ZOOM POSITION
AUTO MAN
Zoom
Box
Zoom Range Box Standard Fishfinder Image
ft
Zoom x3
20
0
40
49 4
60
81254.book Page 33 Monday, March 6, 2006 2:29 PM