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Tuning method Related options Description
Enhance Echoes
functions:
• Interference
rejection — this
function minimizes
the effect of
interference from
other radar-eqipped
vessels.
• Expansion —
enables you to
override the default
radar pulse length,
providing larger target
returns.
• Wakes — enables
you to see the
direction and speed
of moving targets
relative to your
vessel.
INT. REJECTION:
• ON — minimizes
the effect of
interference from
other radar-equipped
vessels.
• OFF — allows you to
detect the presence
of other radars in the
vicinity.
EXPANSION:
• ON — increases
the pulse length.
This provides larger
target returns, making
them easier to see.
However, larger
returns may decrease
target resolution, and
merge on the display.
• OFF — this is the
default setting. It
provides better range
resolution, giving
you more dened
(but smaller) target
returns.
WAKES:
• ON — shows the
direction and speed
of moving targets
The enhance echoes
functions enable you to
minimize the negative
effects of echoes on the
radar display.
Tuning method Related options Description
relative to your
vessel. Targets are
displayed in yellow,
turning to paler
shades of blue as
the signal diminishes.
The options are: 10
sec, 30 sec, 1 min, 5
min, 10 min.
• OFF — does NOT
show the direction
and speed of moving
targets in relation to
your vessel.
Tune control
• AUTO — the
default mode.
The radar tunes
itself automatically
on all range
scales. Raymarine
recommends that
you leave the tune
function in AUTO
mode to receive the
maximum signal.
• MANUAL — enables
you to manually set
the tuning. Adjust
the control to obtain
the maximum signal
strength. If you adjust
the setting shortly
after powering up
the radar scanner,
The radar tuning control
enables you to ne-tune
the radar scanner’s
receiver for maximum
target returns on the
display.
Using radar
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