A-4 SL72 & SL72RC PLUS Pathfinder Radar & Radar/Chartplotter
SL72 PLUS and
SL72RC PLUS 7"
Displays
Radar Features
Range Scales (Range Rings) 0.125 (0.0625), 0.25 (0.125), 0.5 (0.125), 0.75 (0.25), 1.5 (0.25),
3 (0.5), 6 (1), 12 (2), 24 (4).
Performance limited by the scanner position.
Range scales can be customized
Range Ring Accuracy Better than +/– 1.5% of the max. range scale in use,
or 22 m (72 ft.), whichever is the greatest.
Bearing Accuracy +/– 1°
Variable Range Markers 2xVRMs, readout nm, kyds, sm, km
Electronic Bearing Lines 2xEBLs, floating if required, resolution 1°
Bearing Scale 360° graduated at 10° intervals
Minimum Range 23 m (25 yds)
Range Discrimination 23 m (25 yds)
Presentation Modes Head up, Course up or North up (selectable True or Magnetic)
Relative or True Motion
Scanner Control Interference rejection, standby/transmit modes, pulse selection,
Tune, Rain, FTC, and Sea controls, with selection of manual or auto-
matic control of gain, sea clutter and tune (Auto GST
TM
)
Magnetic Sensor NMEA or Seatalk
Waypoint Navigation Lollipop symbol, WPT range, bearing, TTG or lat/lon readout
Marks 100 Mark database
MARPA Manual acquisition of 10 targets, automatic tracking, dangerous
target alarms, safe zone, target history, true or relative vectors
Variation Source Auto (SeaTalk/NMEA/Internal algorithm) or Manual
Guard Zone Alarm 2 guard zones, selectable sensitivity level, audible alarm
Radar/Chart Synchroniza-
tion - SL72RC PLUS only
User selectable in split screen mode provided chart data available
Zoom Mode x2, from 0.25 nm to maximum range, in 1/4 window
Off Centre Function 66% of radius (except maximum range)
Display Windows Radar, Chart, CDI, BDI and Navdata
Wakes Short, medium, long, off
Target Expansion Operator selectable (0.5 nm to 3 nm ranges only)
Timed TX Rotation periods: 10, 20 or 30 scans
Repetition periods: 3, 5, 10 or 15 minutes
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