Changing The Depth Settings - NorthStar 6000i Quickstart Manual And Reference Manual

LEVEL
down to select that color.

Changing the depth settings

You can adjust the shallowest and deepest
echoes to be shown on the
automatic mode, the echo sounder sets
these values based on its current environ-
ment. However, you can manually override
these auto values for your specific needs at
any time. There are two depth settings:
• shift (how far below the surface the
• range (the depth covered by the echo
The shift and range settings are controlled
by a screen that graphically shows the
exact effect of your settings.
Shift
A sliding vertical bar shows the portion of
the water that the echo sounder displays
on the screen, based on the shift and range
settings.
In the large rectangle on the right, the blue
Range
area at the top (with waves) represents the
surface of the water, and the brown area
below represents the seabed.
Reference Manual Revision D
window, press the cursor pad up or
ECHO
echo sounder picture starts)
sounder picture from the top of the
screen to the bottom of the screen)
To remove the white level and return to
using all the colors on the color bar, press
the cursor pad down until the white level
moves off the color bar.
The number at the bottom is the depth of
screen. In the picture, and the seabed depth is also
labelled.
The smaller rectangle inside the larger one
represents the echo sounder's picture. As
you move the shift and range settings, this
rectangle adjusts to show what you will see
on the echo screen.
Adjusting the shift or range changes the
Auto
and
to yellow, since the echo sounder is no
longer in fully automatic mode.
Setting the picture's shift (starting
depth)
The shift setting adjusts the depth of the
top edge of echoes pictured on the
SOUNDER screen. You can "shift" the entire
picture up and down to start at the surface
of the water, 20 feet down, or any other
depth you choose.
To set the shift value:
1. At the
SOUNDER
Reference section 6 — Echo sounding
Depth
status tabs from green
screen, press Depth .
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Changing the depth settings