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1.9 Video Sounder Displays
Five video sounder displays are available: normal, marker zoom,
bottom zoom, bottom-lock and A-scope display. You may select a
video sounder display with the [SNDR] key.
Normal video sounder display
200k
162
0
50
100
150
200
68.3
CSE 180.0° SPD 16.8kt
DEP 113.6 ft TMP 16.0 °C
3D
12.0V
POS 34° 26.245' N 135° 41.232' E
Depth scale
VRM
Fish school
Seabed
Transmit
frequency
Water
temperature
scale
Water
temperature
graph
Tone bar
Depth
°C
30
20
10
0
Water
temperature
display
Figure 1-12 Normal video sounder display
Note: The water temperature display requires a triducer or water
temperature sensor (option).
Marker zoom display
This display provides an expanded view of the area within the Vari-
able Range Marker (VRM) and the zoom marker. It is useful for
judging the size of midwater fish.
200k
162
0
50
100
150
200
90.0
CSE 180.0° SPD 16.8kt
DEP 113.6 ft TMP 16.0 °C
2D
12.0V
POS 34° 26.245' N 135° 41.232' E
VRM (Variable
Range Marker)
Normal display
Marker zoom
display
100
200
150
Display
range marker
Figure 1-13 Marker zoom display plus normal display