Furuno GP-1600F - Manual (Page 63)

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3.12 Measuring Depth by the VRM
The VRM, which is always displayed, measures depth. Place it on
the object you wish to know the depth by pressing the [▲] or [▼]
key. Depth is digitally displayed above the VRM.
200k
132
0
40
80
120
160
58.3
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
VRM Depth
Figure 3-18 Location of VRM depth indication
3.13 Fish and Bottom Alarms
Fish alarm
This alarm alerts you by aural and visual alarms when a fish echo
is within the preset alarm range.
Bottom alarm
This alarm function alerts you when the seabed enters into the speci-
fied alarm zone.
Setting the fish and bottom alarms
1) Press the [MENU ESC] key.
2) Press the [5] key to select ALARM SETUP.
3) Press the [▼] or [▲] key to select FISH or BOTTOM. (If you
are on page 1 of the menu, press [▼] several times to go to
page 2.
4) Press the [s] key to turn on the alarm.
5) Enter alarm range with numeral keys.