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2.3 Auto Range
Range can be adjusted manually or automatically.
Automatic adjustment is useful when you are
preoccupied with other tasks and do not have the time
to adjust the display.
2.4 Display speed
The picture advance speed determines how quickly the
vertical scan lines run across the screen. When choosing a
picture advance speed, keep in mind that a fast advance
speed will expand echoes horizontally on the screen and a
slow advance speed will contract them. A fast advance
speed is useful for observing the rugged bottom closely. A
slow advance speed is useful for observing the smooth
bottom
.
( Maximum speed X 8 , Minimum Speed X 1/8
Setting range
select [display]
select [auto range]
(select among
『off/auto range』
Setting for display speed
select [display]
select [display speed]
select desired speed
