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Using manual Depth Range control, you
can view sonar information from the
area near the surface in greater detail.
To return to automatic Depth Range
control, press the MENU button until
the Depth Range menu appears on-
screen and use the UP ARROW to
select AUTO.
Zoom. Zoom is similar to Depth
Range because it controls the range of
information displayed on screen.
Zoom, however, allows selection of
ranges beneath the surface so any
area of water between the surface
and the bottom can be enlarged to
provide more detailed information.
By using the full display to show a small
area of coverage, the effective display
resolution is increased, and the unit’s
ability to separate close targets is
enhanced.
There are four Zoom ranges available:
7
1
/
2
', 15', 30', and 60'. These ranges
are not directly user controlled but are
instead dependent on the current
depth range. In shallow water, when
the 15' or 30' range is in use, the
Zoom range is 7
1
/
2
'. If the 60' or 120'
range is in use, the Zoom range is 15',
if a 180'-480' depth range is in use,
the Zoom range is 30', and if the 600'
range is in use, the Zoom range is 60'.
16
USING THE 105SX
MENU FUNCTIONS
Depth Range
Lower Zoom Limit
Upper Zoom Limit