MaxSea Operator Manual version 12.6 - Furuno USA

MaxSea Operator Manual version 12.6
NOISE LIMITER - Off,
502
- Level1,
- Level2,
- Level3
More info...
Automatic sounder operation is useful when you are preoccupied with
other tasks and do not have the time to adjust the display. The automatic
sounder function automatically selects the proper gain, range scale and
clutter suppression level according to the depth. It works as follows:
• The range changes automatically to locate the bottom on the lower half of
the screen. The range jumps to one step shallower range when the bottom
echoes reach a half way point of the full scale from the top and to one step
deeper range when they come to the lower edge of the scale.
• The gain is automatically adjusted to display the bottom echo in reddish
brown (default color arrangement).
• Clutter, which suppresses low level noise, is automatically adjusted.
Manual Sounder Operation
Manual operation is useful for observing fish schools and bottom using a
fixed gain setting.
The gain, range and range shift functions used together give you the
means to select the depth you can see on the screen. The basic range can
be thought of as providing a “window” into the water column and range
shifting as moving the “window” to the desired depth.
To adjust the Noise Limiter level:
1. Click on the Noise Limiter line to display the Pop-up menu
2. Choose Level1,Level2 or Level3 to define the degree of suppression
desired or Off for no limitation
3. Press [ENTER] to validate.
Reducing Interference
Interference from other acoustic equipment operating nearby or other
electronic equipment on your boat may show itself on the display.
More info...
Type of interference :
Interference
from other
sounder
Electrical
Interference
Note : Turn the noise limiter circuit off when no interference
exists, otherwise weak echoes may be missed.
CLUTTER 0 - 16 When the automatic sounder mode is used, clutter is automatically
adjusted. To reduce low level noise in manual sounder operation do the