Light
(Setting Not Saved in Memory)
Press the POWER-MENU key until LIGHT appears. Use the backlight for night fishing. Select either 0 (Off), or 1 through 5 to activate the
backlight at the desired level. (0 to 5, Default = 0)
NOTE:
Continuous backlight operation will significantly decrease the battery life for PiranhaMax Portables.
Sensitivity
(Setting Saved in Memory)
Press the POWER-MENU key until SENSITIVITY appears. Sensitivity controls how much detail is shown on the display. Increasing
the sensitivity shows more sonar returns from small baitfish and suspended debris in the water; however, the display may become
too cluttered. When operating in very clear water or greater depths, increased sensitivity shows weaker returns that may be of inter-
est. Decreasing the sensitivity eliminates the clutter from the display that is sometimes present in murky or muddy water. If Sensitivity
is adjusted too low, the display may not show many sonar returns that could be fish. (0 – 10, Default = 5)
Depth Range
(Setting Not Saved in Memory)
Press the POWER-MENU key until DEPTH RANGE appears. Automatic is the default setting. When in automatic, the lower range will
be adjusted by the unit to follow the bottom. (Auto, 15 to 600 Feet, Default = Auto)
NOTE:
In manual operation, if the depth is greater than the depth range setting, the bottom will not be visible on the display. Select AUTO to return to automatic
operation.
Zoom
(Setting Not Saved in Memory)
Press the POWER-MENU key until ZOOM appears. Select Auto to magnify the area around the bottom in order to reveal fish and
structure close to the bottom that may not be visible during normal operation. When ZOOM is set to Auto, the upper and lower Depth
Ranges are automatically adjusted to keep the area above and below the bottom on the display. Select Off to return to normal oper-
ation. (Off, Auto, Manual Ranges, Default = Off)
There is also a series of manual ranges which can be selected. The manual depth ranges are determined by the present
depth conditions.
Chart Speed
(Setting Saved in Memory)
Press the POWER-MENU key until CHART SPEED appears. Select a setting from 1-5 to increase or decrease the chart speed, where
1 is the slowest and 5 is the fastest chart speed. Chart speed determines the speed at which the sonar information moves across the
display, and consequently the amount of detail shown. A faster speed shows more information and is preferred by most anglers;
however, the sonar information moves across the display quickly. A slower speed keeps the information on the display longer, but
the bottom and fish details become compressed and may be difficult to interpret. (1 to 5, Default = 5)
