Furuno 1830 - Factors Affecting Maximum Range; Radar Horizon

Guard zone you
want to set
Move cursor
to point A
(op B) and
press ^
( 2 )
_ Move cursor
I to point C
^ (or D).
Ftg.3i Seiting Guarct Zone
SKIFTING THE DISPLAY
The own ship's position can be shifled aft by 33% of the selected range.
The primary advantage of tjje sliifted Cuff-center) display IS mat for any
range setting the view ahead ofown ship can be extended without changing
the range in uee. Press the touchpad to activate this function, Press
the tonohpari again to nancel this function.
Fig.32 Shifting the Display
3fi