Garmin Fishfinder 240 Blue Owner's Manual - Page 40
Browse online or download pdf Owner's Manual for Marine GPS System Garmin Fishfinder 240 Blue. Garmin Fishfinder 240 Blue 50 pages. Garmin fishfinder 160 blue owner's manual
Also for Garmin Fishfinder 240 Blue: Owner's Manual (50 pages), Pilot's Manual (12 pages), Specifications (2 pages), Specifications (2 pages), Owner's Manual (50 pages), Owner's Manual (50 pages)
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On the Water
On the Water
Understanding the Chart
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Thermoclines
One of the unique features offered by GARMIN is See-Thru® technol-
ogy. See-Thru® technology allows the Fishfinder 160 to see through
thermoclines and helps locate fish where they live, and fish love the
thermocline.
A rough defi nition of a thermocline is a break in water where the water
temperature changes faster than the water above it. The thermocline usually
displays as a gray level as shown below.
Thermocline