Key control:
1.
Press the
Popup
menu key to open the [Popup] menu.
2.
Select [Gain Auto] with the arrow keys, then press the
ENTER
key.
3.
Select [Off] with the arrow keys, then press the
ENTER
key.
4.
Select [Gain HF] or [Gain LF] with the arrow keys, then press the
ENTER
key.
5.
Set the gain adjustment level with the arrow keys, then press the
ENTER
key.
6.
Press the
MENU/ESC
key to close [MENU].
3.5
How to Measure the Time and Depth to Objects
The VRM (Variable Range Marker) measures the time and depth from own ship to an
object (a school of fish, bottom, etc.). You can display the marker by tapping the object
for which you want to take measurements.
VRM
Range and time to
VRM
3-10
3
.
FISH FINDER
