Range - NorthStar EXPLORER 443D Installation And Operation Manual

4-5 Range

Range is the vertical depth displayed on the
Explorer 443d/443df.
The Northstar fishfinder has two range modes,
Auto Range and Manual Range:
In Auto Range, the fishfinder adjusts the
•
depth range automatically so the bottom is
always shown in the lower part of the display.
The use of Auto Range is recommended for
normal conditions.
In Manual Range, the fishfinder shows only
•
a selected depth range. In areas of rapidly
changing bottom depth, such as the sea floor
around pinnacles, it can be useful to prevent
the display from rescaling to always show
the bottom. If the bottom is deeper than the
specified depth range, it will not be shown
on the display.
Changing the Range Mode
Press the + or - key to change to Manual Range
mode and to increase or decrease the range to
the desired depth. Values can be set between 10
ft. (3 m) to 1000 ft. (300 m).
To change from the current mode:
1. From any Sonar display, press MENU to
display the Options menu.
2. Highlight Range, then use the cursor keys to
select Auto or Manual.
3. Press ENT to confirm.
Tip: To quickly enlarge from manual to auto-range
hold down + or - key for 1.5 seconds.
Northstar Explorer 443d/443df Installation and Operation Manual
Zoom Range and Zoom Offset
On the Sonar Zoom and Sonar Bottom displays,
a vertical bar is shown on the far right of the
display. This is the zoom bar. The zoom bar shows
the zoom range; that is, the area that
is magnified.
Use the or cursor keys to adjust the
zoom range.
Use the or cursor keys to adjust the
zoom offset.
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