13.1 Radar overview
Radar is used to provide information that can help you to track
targets and measure distances and bearings.
Radio Detection And Ranging (RADAR) is used at sea to detect the
presence of objects (known as ‘targets’) at a distance, and if they
are moving, detect their speed.
Radar works by transmitting radio pulses, then detecting reflections
of these pulses (echoes) from objects in the area and displaying the
reflections as targets on your display.
Until you are familiar with interpreting the radar display, every
opportunity should be taken to compare the radar screen patterns
with visual targets, such as other boats, buoys and coastal
structures. You should practise harbor and coastal navigation during
daylight hours and in clear weather conditions.
HD and SuperHD radar
Your multifunction display can be used with radar scanners.
HD and SuperHD radar scanners provide a range of advantages,
making it easier to discern objects around your vessel.
HD and SuperHD radar scanners provide:
• Improved target detection.
• Full-color image.
• Dual Range operation.
• SuperHD option. This effectively increases the transmitter power
by a factor of at least 2, and reduces the beamwidth by a similar
amount.
Note:
You must connect a SuperHD radar scanner in order to
use the SuperHD option.
Multiple radar scanners
The multifunction display only supports the use of 1 radar on the
network.
When the radar application is opened, if multiple radar scanners are
detected then a warning message shall be displayed. Additional
scanners will need to be removed from the network before the radar
application will function.
Radar Features
Depending on the type of Raymarine radar you have different
features will be available to you, the table below shows which
features and settings are supported by radar type:
Feature
Non-HD
Digital
Radome
HD Radome
HD Open
Array
SuperHD
Open Array
Color Gain
Auto /
Manual
(0-100%)
Auto /
Manual
(0-100%)
Auto /
Manual
(0-100%)
FTC
Off/On
(0-100%)
Sea
Harbour /
Coastal /
Offshore
/ Manual
(0-100%)
Auto /
Manual
(0-100%)
Auto /
Manual
(0-100%)
Auto /
Manual
(0-100%)
Auto Mode:
Buoy
Auto Mode:
Harbor
Auto Mode:
Offshore
Auto Mode:
Coastal
Auto Mode:
Bird
Feature
Non-HD
Digital
Radome
HD Radome
HD Open
Array
SuperHD
Open Array
Power Boost
Antenna
Boost
Interference
Rejection
Off / Normal /
High
Off / On
Off / On
Off / On
Target
Expansion
Off / Low /
High
Off / On
Off / On
Off / On
MARPA
Targets
10
25
25
25
Dual Range
Dual Range
Restrictions
N/A
Scanner
Speed
24 RPM
24 RPM /
Auto
24 RPM /
Auto
24 RPM /
Auto
Parking
Offset
0-360
degrees
0-360
degrees
Antenna Size
4ft / 6ft
4ft / 6ft
Display
Timing
0-153.6m
0-767m
(range
dependant)
0-767m
(range
dependant)
0-767m
(range
dependant)
STC Preset
0-100%
Gain Preset
0-100
Tune
Correction
Note:
Features not listed are supported by all types of Raymarine
Non-HD Digital, HD and SuperHD radars.
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