Appendix A
311
Radar features (Digital radars)
MARPA
Manual acquisition of 10 targets, automatic tracking, dan-
gerous target alarms, safe zone, target history, true or rela-
tive vectors, CPA graphics and indication of target speed/
course, bearing/ range, CPA and TCPA.
Variation Source
Auto (SeaTalk/NMEA/Internal algorithm) or Manual
Guard Zone Alarm
2 guard zones, selectable sensitivity level, audible alarm
Auto GST
Auto control of gain, sea clutter and tune.
Off Centre function
In Relative Motion,
1
/
3
or
2
/
3
selectable)
Wakes
10s, 30s, 1 min, 5 min, 10 min, OFF
Target Expansion
Operator selectable with 2 levels available, OFF
Timed TX
Rotation periods: 10, 20 or 30 scans
Repetition periods: 3, 5, 10 or 15 minutes
AIS overlay
Switch AIS symbols on/off. Display heading/speed vectors
and ROT. View detailed AIS data, safety critical target data,
ALR and SRM messages. Set up a safe zone.
Digital Features
Full color radar images(256 colors) - Full color pallets
(choice of 5), Color Gain, Dual range (short range up to 3Nm
range) Super High Definition (4 & 12Kw options).
Range Scales
(Range Rings)
1/8 (1/16)nm to 72 (12) nm dependant on scanner
Performance limited by scanner type and position.
Range Ring Accuracy
Better than +/- 1.5% of the max. range scale in use, or 22m
(72 ft.), whichever is the greatest.
Bearing accuracy
+/- 1°
Variable Range Markers
2 x VRM’s, readout nm, sm, km
Electronic Bearing Lines
2 x EBL’s, floating if required, resolution 1°
Bearing scale
360° graduated at 10° intervals
2° small ticks
10° large ticks
Minimum range
23m (25 yds)
Range Discrimination
23m (25 yds)
Presentation Modes
Head up, Course up or North up (selectable True or Mag-
netic). Relative or True Motion.
Scanner Control
Interference rejection, standby/transmit modes, pulse selec-
tion, Tune. Selection of automatic and user configurable
modes; Buoy, Harbour, Costal and Offshore with options to
configure Gain, Color Gain, Rain clutter and Sea clutter con-
trols in each option.
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