Sounder Functions - Raymarine DSM300 User Manual

20
You can select the Zoom or Bottom Lock image to be displayed in place of the
regular bottom graph display. Alternatively, you can set the display window to be
split vertically with the bottom graph displayed in the right hand screen and the
Zoom or Bottom Lock image displayed in the left hand screen. See Figure 2-4.
If you choose dual frequency, the scrolling bottom graph is displayed in both
frequencies, split horizontally. Zoom, Bottom Lock, or A-Scope can be displayed
with the dual frequency graph.
All of these options are available when the sonar data is displayed in a half-screen
window.

Sounder Functions

The DSM300 includes the following functions:
• Automatic or manual selection of scroll speed for bottom graph display
• Automatic or manual selection of transducer frequency
• Automatic or manual selection of depth range limits
• Automatic or manual selection of Gain, Color Gain, and STC settings
• Set up alarms for Fish, Shallow water and Deep water
• VRM marker to determine depth and distance
Operation of these functions is described in Chapter 4 and Chapter 5.
AUTO GC Z H
200kHz
200kHz
50kHz
50kHz
Split Frequency
SPLIT
ft
DSM300 Operation with PLUS Series Displays
AUTO GC Z H
0
20
40
60
80
200kHz
200kHz
50kHz
50kHz
0
20
40
60
80
Split Frequency with A-Scope
SPLIT
0
20
40
60
80 6.8
0
20
40
60
80
27.2
27.2
ft