12. Navigation Tools
12-4
12.2.4 Shifting the reference point
The reference point, shown on the display with a cross mark (if turned on in the Nav Marks dialog box), is a
specified location to which measurements of range and bearing are referred. To choose the location for the reference
point, open the Nav. Marks dialog box, check Ref. Pt, put the cursor at the location desired then push the right
mouse button.
North Up TM
ECDIS only
HDG 070.0°
SPD
(CALC)
1.8
Kt
SB
(POSN)
1.7
Kt
COG
(POSN)
045.1°
SOG
(POSN)
2.0
Kt
Past Posn true
CPA 10 nm 10 min
Centered reference point with Variable Range Marker (VRM) and Electronic Bearing Line (EBL)
North Up TM
ECDIS only
HDG 070.0°
SPD
(CALC)
1.8
Kt
SB
(POSN)
1.7
Kt
COG
(POSN)
045.1°
SOG
(POSN)
2.0
Kt
Past Posn true
CPA 10 nm 10 min
Reference point off centered with Variable Range Marker (VRM) and Electronic Bearing Line (EBL)
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