Raymarine C140w User Reference Handbook page 116

Tuning method Related Options
Sea gain presets: • AUTO — the preset
operates in fully
• Harbor — this is the
automatic mode. This
default mode. This
is the default.
setting takes account
• MAN — allows you to
of land clutter so that
manually adjust the
smaller targets, like
intensity of the sea
navigation buoys, are
gain, from 0 to 100%.
not lost.
• Coastal — accounts
for the slightly higher
levels of sea clutter
you might encounter
out of harbor and
adjusts the radar
display accordingly.
• Offshore —
Automatically adjusts
for high levels of sea
clutter.
116
Description
Enable you to quickly
select pre-configured
settings to achieve the
best picture in different
situations. Each of the
gain presets has a gain
function, which is set
to fully automatic mode
by default. Raymarine
strongly recommends
the use of these presets
to achieve optimum
results. However, you
can adjust this gain
manually if required.
C-Series Widescreen user reference