RezBoost Beam Sharpening
RezBoost™ beam sharpening technology is available in select Radar units. With
RezBoost™, you'll see more detailed targets with less clutter.
With Furuno's exlcusive Target Analyzer, targets that are
approaching your vessel automatically change color to help you identify when
they are hazardous. Green echoes are targets that stay stationary, or are moving
away from you, while red echoes are hazardous targets that are moving towards
your vessel. Echoes dynamically change colors as targets approach or get farther
away from your vessel.
Target Analyzer improves
situational awareness and can increase safety by showing you which
targets to look out for.
Fast Target Tracking utilizing Doppler technology
With Doppler technology, any vessel approaching yours will automatically
display a target vector as well as sound an alarm. Select any target, and it
only takes a few seconds to display a speed and course vector. With accurate
tracking information, estimation of other vessel's course and speed is greatly
simplified. Up to 100 targets can be displayed simultaneously.
Basic Radar Terms:
Beamwidth is the angular width, horizontal or vertical, of
the path taken by the Radar pulse. Horizontal beamwidth ranges from 0.75 to 5
degrees, and vertical beamwidth from 20 to 25 degrees.
Different than display resolution, which is a measure of the pixels in an LCD
display, Radar resolution describes the Radar’s ability to distinctly display
two Radar targets which are close to each other. Radar has two types of
resolution: Range, and Bearing.
Range Resolution is a
measure of the capability of the Radar to display as separate pips the echoes
received from two targets that are on the same bearing and are close together.
The main factor that affects range resolution is pulselength. A short
pulselength gives better range resolution than a long pulselength.
Bearing Resolution is a
measure of the capability of the Radar to display as separate targets the echoes
received from two targets that are at the same range and close together. The
principal factor affecting bearing resolution is horizontal beamwidth. The
narrower the horizontal beamwidth, the better the bearing resolution.
The range from own ship to target can be measured in three ways: by
Range Rings, by Cursor, and by the Variable
Range Marker (VRM).
The RINGS key shows/hides the range rings
and adjusts their brilliance. To measure range by the range rings, count the
number of rings between the center of the display and the echo. Check the range
ring interval at the top of the display and judge the distance of the echo from
the inner edge of the nearest ring.
The cursor provides a more accurate
measurement of range to targets. Set the cursor intersection on the inner edge
of the target. The range from own ship to target appears on the display.
The VRM, like the cursor, provides a more
accurate measurement of the range to targets. Display a VRM and adjust it so
that it rests on the inner edge of the target. The range to target appears on
the VRM readout.
The relative bearing from own ship to targets can be measured by the
cursor and by the EBL (Electronics Bearing Line).
To measure bearing by cursor, set the cursor intersection on the center of
the echo. The bearing from own ship to target appears on the display.
To measure bearing by EBL, display an EBL and adjust it
so that it bisects the target. The bearing to the target appears on the EBL
readout. Bearing relative to heading is relative bearing, while bearing relative
to North is true bearing.
With a Gyro or Satellite Compass
connection, you can display true bearing. Without a compass connection, you can
determine true bearing by simply adding relative bearing to your compass
reading: if the sum is over 360 degrees, subtract 360 from the number.