Lowrance electronic M56 - Manual (Page 66)

60
and boat wakes can create enough tiny air bubbles to clutter much of
the water column. In that case, a decrease in sensitivity is indicated to
reduce some of the clutter.
The control bar used to adjust sensitivity up or down is the same
whether the unit is in the automatic or manual mode. In automatic you
can adjust sensitivity up to 100 percent but the unit will limit your
minimum setting. In auto, the unit will continue to make small ad-
justments, allowing for the setting you selected.
In manual mode, you have complete control over sensitivity, with the
ability to set it anywhere from zero to 100 percent. Once you select a
level in manual, the unit will continue to use that exact sensitivity set-
ting until you change it or revert to auto mode.
To adjust sensitivity in auto mode:
1. Press
MENU | ENT .
2. The Sensitivity Control Bar appears. Press
↓ to decrease sensitivity;
press
↑ to increase sensitivity. When it's set at the desired level, press
EXIT . (When you reach the maximum or minimum limit, a tone sounds.)
At left, Sonar Menu with Sensitivity command selected. At right, the
Sensitivity Control Bar.
To adjust sensitivity in manual mode:
1. First, turn off Auto Sensitivity: from the Sonar Page, press
MENU |
↓
to A
UTO
S
ENSITIVITY
| ENT .
2. Press
↑ to
S ENSITIVITY
| ENT and the Sensitivity Control Bar appears.
Press
↓ or ↑ to pick a different sensitivity setting. When it's set at the
desired level, press EXIT .
To turn Auto Sensitivity back on:
From the Sonar Page, press
MENU |
↓ to
A UTO S ENSITIVITY
| ENT | EXIT .