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CHT 4 (Chart #4)
This is the High Speed Scroll mode. It has the
following features:
1. Automatic Off
2. Fish ID Feature Off
3. All Digital Displays Off
CHT 3 (Chart #3)
Same as Chart #1 plus a digital speed
display.
CHT 2 (Chart #2)
Same as Chart #1 plus digital surface water
temperature display.