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MENU SCREEN
■ Video menu
D TUNE
• Auto: Automatic tuning.
• “TUNE (AUTO)” is displayed in the upper right
corner of the screen.
• Manual: Manual tuning.
• “TUNE (MAN)” is displayed in the upper right
corner of the screen.
D Manual TUNE
When “Auto” is selected in the “TUNE” item, this set-
ting is disabled.
q
Push [ENTER]/[ ] to enter the adjustment mode.
w Push [t] or [u] to adjust the desired tuning level
(256 levels).
e Push [ENTER]/[ ] again to save and exit the ad-
justment mode.
D Dynamic Range
Selects the dynamic range of the PPI (Plan Position
Indicator).
• Narrow: Narrow dynamic range. Even weak reflec-
tions are displayed as strong reflections.
• Middle: Mid dynamic range.
• Wide: Wide dynamic range. You can easily distin-
guish between weak reflections and strong
reflections.
D IR
• OFF: Turns OFF the Interference Rejection
function.
• 1 or 2 (ON): Turns ON the Interference Rejection
function 1 (Low) or 2 (High).
• “IR1” or “IR2” is displayed in the upper
right corner of the screen.
D Echo Stretch
• OFF: Turns OFF the echo stretch function.
• ON: Turns ON the echo stretch function.
• “ES” is displayed in the upper right corner of the
screen.
D Pulse Width
• SP: Sets the pulse width to narrow.
• LP: Sets the pulse width to wide. “ ” is displayed in
the upper left corner of the screen.
D SEA Curve
• The SEA knob can be used to fine tune the sea clut-
ter of the display after one of four main levels are se-
lected, depending on the sea conditions.
D Antenna Height
• Sets the antenna height from the surface of the sea.
5 m, 10 m, 15 m, 20 m, 30 m, 40 m, or 50 m is select-
able.
■ System menu
D Key Beep
• OFF: Turns OFF* the beep tone.
• ON: Tur ns ON the beep tone.
* Except for the alarm function.
D Sync Backlight
Sets whether or not to synchronize the brilliance of the
display and key backlight.
• OFF: Individually sets the brilliance of the display
and key backlight. (16 levels each)
• ON: Synchronizes the brilliance of the key back-
light to the display. (16 levels)
D HL OFF Mode
Selects the objects to hide temporarily in the Heading
Line OFF mode (while [BRILL]/[ ] and [ALM]/[ ]
are simultaneously hold down).
• Heading Line: Turns OFF only the Heading line.
• All: Turns OFF the Heading line, Rings,
and other objects.
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