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Understanding the On-screen Images
As the boat moves, terrain and bottom composition variations
are displayed on-screen. Fish, bait fish and thermoclines (under-
water temperature changes) are displayed when detected.
Underwater conditions vary greatly, so some experience and
interpretation is needed to realize all the benefits of the Piranha
– use the picture below as a guide to the most common condi-
tions and practice using the Piranha over known bottom types.
Accessing Menu Features
A simple menu system accesses Piranha’s adjustable features.
To activate the menu system, press POWER-MENU and a menu
appears. Press POWER-MENU repeatedly to access other
Piranha menus one at a time. When a menu is on the display,
use the right and left arrow keys to adjust the menu. Menus
automatically are removed from the screen after several sec-
onds.
Note: Each time POWER-MENU is pressed, the backlight
momentarily illuminates for easy viewing at night. Adjust
the Light menu setting to keep the light on.
Note: If Simulator Mode is selected from the Startup Menu
and a transducer is plugged in, menu settings are saved in
memory. Menu settings are not saved from Simulator
mode without a transducer connected.
Light
(Setting Not Saved in memory,
Defaults to OFF)
Press POWER-MENU until the LIGHT menu appears. Select either
OFF, LOW or HIGH to activate the backlight at the desired level.
Note: Continuous backlight operation significantly
decreases battery life on Piranha Portables.
Sensitivity
(Setting Saved in Memory, )
Press POWER-MENU until the
SENSITIVITY menu appears. Select a higher number to show
smaller sonar returns on-screen, or a lower number to remove
clutter from the screen. Adjusting Sensitivity also affects how
sonar returns are identified as
Fish ID Symbols - more fish will
be detected at a higher setting,
fewer at a lower setting. 5 is the
Factory Setting.
Depth Range Menu
(Setting Not Saved in Memory,
Defaults to Auto)
Press POWER-MENU until the Depth Range menu appears.
Select AUTO to have the Piranha automatically select the Depth
Range or manually select 15, 30, 60, 120, 180, 240, 360, 480
and 600 ft. This locks the depth range to a specific setting.
Note: In manual operation, if the depth is greater than the
depth range setting, the bottom will not be visible on-
screen. Select AUTO to return to automatic operation.
Zoom
(Setting Not Saved in Memory,
Defaults to OFF)
Press POWER-MENU until the Zoom menu appears. Select AUTO
to magnify the area around the bottom thus revealing fish and
structure close to the bottom that may not be visible in typical
operation. In AUTO, the Piranha continually changes the upper
and lower Depth Range to keep area just above and below the
bottom on the display. Select OFF to return to normal operation.
(illustration top of page O-13)
O-12
Menu Title
Setting
Button Changes
A button has no function when
the menu arrow is not displayed.
Low Sensitivity
Normal Sensitivity
High Sensitivity
Water Surface Line
Depth – Measured at the Transducer
Thermocline
Bait fish
Fish ID+
Structure
Rocky Bottom Depth Contour Soft Bottom Hard Bottom