Humminbird SINGLEBEAM 405SX Operation Manual page 18

USING THE 405SX
MENU FUNCTIONS
After an adjustment is made, the menu
disappears and the new sensitivity setting is in
affect. If additional time is needed to study a
menu, press and hold the MENU button and
the menu will remain on-screen indefinitely. If
you need to make an additional adjustment,
press the UP ARROW or DOWN ARROW
button.
Depth Range. The Depth Range function
controls the vertical distance displayed on the
graphic area of the display. There are nine
depth ranges available. The top of the range is
always 0, or the surface of the water. Ranges
of 0–15', 0–30', 0–60', 0–120', 0–180',
0–240', 0–360', 0–480', and 0–600'. The range
that positions the bottom depiction closest to
the bottom of the screen, will best utilize the
available display resolution.
Using the factory setting of AUTO the 405SX
can automatically adjust the depth range
depending on the depth of the water. The unit
tries to maintain the bottom depiction about
down the total range (for example, in 20' of
water, the 0-30' range would be
selected). This provides the best
display resolution and therefore
the best target separation
possible.
The Depth Range can be
adjusted manually. Press MENU
repeatedly until the Depth
Range menu is visible. Two
options are available: Auto and
Manual.
The manual setting enables you
to adjust the current depth Depth Range
16