Furuno FEA-2107 Operator's Manual page 31

North Up TM
ARCS raster format
ARCS charts are digital reproductions of British Admiralty (BA) paper charts. They retain the same standards of
accuracy, reliability and clarity as paper charts.
Zooming into the ARCS chart can be useful for magnifying a complex detail, however this decreases the density of
the data displayed, and can give a false impression of distance from danger. Therefore, it is possible to zoom 2x the
original paper chart's scale or ½ the original paper chart's scale.
North Up TM
ECDIS only
S57 vector chart
ECDIS only
ARCS raster format chart
3. ECDIS Screen
HDG 070.0°
SPD (CALC) 1.8
Kt
SB (POSN) 1.7
Kt
COG 045.1°
(POSN)
SOG 2.0
(POSN) Kt
Posn true
HDG 070.0°
SPD 1.8
(CALC) Kt
SB 1.7
(POSN) Kt
COG 045.1°
(POSN)
SOG (POSN) 2.0 Kt
Posn true
3-3