Furuno FAR-3220 Marine RADAR User Manual


 
FOREWORD
xviii
New HMI (Human Machine Interface) gives improved operability.
Accepts SXGA, UXGA video inputs.
SOLAS category 1 compatible display (23.1”), SOLAS category 2 compatible display (19.0”).
Radar, chart and chart radar modes. (The chart radar mode does not meet the criteria for nav-
igation aid for Japanese flag vessels as defined by Japanese law.)
Many warning features to support safer and more efficient navigation.
Grounding warnings, safe depth contours.
Chart database loaded and updated using CD-ROMs.
Tracked Target (TT) data and AIS data to aid in collision avoidance.
• AIS messaging.
Route created in chart mode can be displayed on the radar.
Route planning and route monitoring facilities in the chart mode.
Signal Processing Functions
This radar has the signal processing functions described in the table below. All signal processing
functions are set with the picture preset feature.
Standards Used in this Manual
Three types of Control Units are available: Radar Control Unit RCU-025 (radar controls with
trackball module), ECDIS Control Unit RCU-024 (alphabet keyboard, controls, trackball mod-
ule) and Trackball Control Unit RCU-026 (trackball module only). Unless noted otherwise, “Con-
trol Unit” refers to the RCU-025.
The system can be operated with the controls of the Radar Control Unit, ECDIS Control Unit or
a trackball module. The descriptions in this manual use the trackball module.
Unless noted otherwise, "click" means to push the left button on a trackball module.
The keys and controls of the Radar Control Unit are shown in bold face; for example, the EN-
TER key.
Signal processing function Description Section
Interference rejector Suppress interference transmitted by other radars. Inter-
ference received simultaneously from many radars can
be difficult to reduce.
2.7
Echo stretch Enlarge target echoes, especially small echoes. Sup-
press interference, sea clutter and rain clutter before us-
ing echo stretch, to prevent the enlargement of unwanted
echoes.
2.8
Echo averaging The radar samples echoes with each scan. Targets that
show a large change with each scan are judged as clutter
and are reduced to display only echoes from legitimate
targets.
2.9
Automatic clutter elimination Discriminate the clutter from the radar echo then reduce
the clutter automatically.
2.10
Noise rejector Reduce the white noise then improves the on-screen S/N
ratio by processing the weighted moving average filter for
the received echoes in the range direction. Use this func-
tion with caution. Weak target echoes may disappear
from the screen or the range resolution may worsen.
2.11