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Chart Setup menu.
Limit Search
The Limit Search command helps you maintain maximum chart detail
when you are moving fast in deep water (about 200 feet). When turned
on, Limit Search prevents the digital sonar from over-riding the sonar
chart's depth range setting.
Limit Search does this by preventing the digital sonar from slowing
down the ping speed as it automatically searches for and tracks the
bottom. The default setting is off, and this should fit most freshwater
fishing situations.
High boat speed and slow ping speed (caused by the deeper bottom) can
reduce the screen refresh rate. This in turn can reduce the amount of
detail seen on the sonar chart. Try this command only if you are in
deep water, traveling at high speed, and notice a reduction in detail on
the sonar chart. When Limit Search is turned on, the digital sonar will
limit its search for the bottom to the depth range you have set for the
sonar chart.
NOTE:
Turning Limit Search on can cause the digital sonar to lose the bot-
tom in some situations. The digital depth will flash if that occurs.