1–8

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