USING THE LEGEND 1000 SERIES
SURFACE CLUTTER / WHITE LINE / FILTER / DEPTH ALARM / TEMP ALARM
Surface Clutter
SURFACE CLUTTER eliminates
most sonar returns near the water surface
caused by trapped air, boat wakes and temperature inversions. Most surface clutter appears on the display because the strongest sonar returns come from the shallowest objects. The LEGEND 1000 SERIES uses a sophisticated feature called TVG (Time Variable Gain) to overcome surface clutter and counteract the effect of depth on sonar return strength. The level 1 setting is optimal for making sonar information from all depths appear uniformly. Many users, however, prefer to see more surface clutter than this setting shows. Selecting a higher number shows more surface clutter, but sonar returns nearest the surface will appear more intense than they actually are.
The SURFACE CLUTTER setting is retained in memory after the LEGEND 1000 SERIES is turned off. The factory setting is 4.
White Line
WHITE LINE activates and adjusts a feature which changes how
the LEGEND 1000 SERIES
draws the bottom contour and structure, and also shows fainter sonar returns more clearly.
When a WHITE LINE
setting of 1 to 8 is selected, a light gray band highlights the
strongest sonar returns within the sonar image and makes a distinctive outline along the bottom contour, structure and fish. Selecting a larger numeric setting increases the width of the band and makes fainter sonar returns more noticeable, but the LEGEND 1000’S ability to show subtle differences in bottom composition and structure is reduced. Selecting a smaller numeric setting narrows the band and shows greater variation in bottom composition. Selecting OFF turns the WHITE LINE feature off.
The WHITE LINE setting is retained in memory after the LEGEND 1000 SERIES is turned off. The factory setting is OFF.
Filter
FILTER (DEEP Models only) turns the filtering algorithms on and off.
Select ON to filter excess sonar noise. Select OFF to show the greatest amount of sonar information.
The FILTER setting is retained in memory after the 1000 Deep/1005 Deep is turned off. The factory setting is ON.
Depth Alarm
DEPTH ALARM activates a
shallow water depth alarm. The alarm will
sound when the digital depth becomes equal to or less than the setting. The tone sounds at a rapid rate for several seconds and then sounds intermittently until the boat moves to deeper water. The DEPTH ALARM can be muted by pressing the CONTROL PANEL knob; once muted, the alarm will not sound again until the boat moves to water deeper than the DEPTH ALARM setting. International models have Depth Alarm settings in metres and fathoms.
Note: Remember that depth is measured from the transducer, not from the surface of the water.
The DEPTH ALARM setting returns to factory default after the LEGEND 1000 SERIES is turned off. The factory setting is OFF.
Temp Alarm
Temp Alarm activates an alarm that sounds when the surface water
temperature changes to fall within or outside selected ranges. These temperature boundaries help define bodies of water that are comfortable
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