Adjust the range offset as below when the vessel is about 45 to 90 m (50 to 100 yards) from a
straight-walled jetty or similar feature that produces a straight line echo on the display.
1 Point the vessel towards the jetty
2 Adjust the range offset to make the jetty echo appear as a straight line on the
display
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Note: Fine range offset tuning is possible with a nearby AIS target when the ship outline
is presented. Radar echo should be placed above AIS.
Sector blanking
Radar installed in close proximity to a mast or structure could cause unwanted reflections or
interference to appear on the radar image. Use the sector blanking feature to stop the radar
from transmitting on up to four sectors in the image.
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Note: Sector blanking should be applied very carefully to avoid reducing the radar’s
usefulness in identifying valid and potentially dangerous targets.
Defining blanking sectors
1. Select the sector you want to create the blanking for (icon A)
2. Turn ON the enable option (icon B) for the selected sector to display the adjustment icons
(C)
3. Set the bearing and width for the sector. The bearing is the center line of the sector,
relative to the heading line of the radar. 0° is dead ahead.
4. Continue as above defining the remaining sectors.
The settings are saved to temporary memory when you switch between the sectors.
You are asked to save or discard the settings when you exit the blanking sector screen.
Software setup | R5000 Commissioning manual
23
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