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3) Use the
Up / Down Arrow
to select
Noise Filter
option.
4) Press
Ent
to enter into setting.
5) Use the
Up / Down Arrow
to change the value.
6) Press
Ent
to confirm and exit the setting.
Grayline (Magic Grayline for FC500)
Grayline is used to let you see both strong and weak signals
on the display
If Grayline is “inversed”, weak returns will be shown with dark
pixels and strong returns with lighter pixels. This is very helpful
of ensuring that weak signals will be clearly visible on the display;
If Grayline is “on”, strong returns will be shown with dark pixels
and weak returns with lighter pixels. This is very helpful of
ensuring that strong signals will be clearly visible on the display;
Note:
For FC520, Grayline is featured by actual sonar sampling, and
for FC500, the Magic Grayline is featured by calculation of the
sonar program. FC520 get a little better sensitivity and Respon-
siveness of sonar rutures.
To set the
Grayline
:
1) Press
Menu
to enter into menu setting.
2) Repeatedly Press
Menu
to switch to
SONAR
menu.
3) Use the
Up / Down Arrow
to select
Grayline
option.
