Garmin GPSMAP 188 Owner's Manual And Reference Manual page 125
Chartplotting receiver & depth-finder
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Also See for GPSMAP 188:
- Specifications (2 pages) ,
- Owner's manual (126 pages) ,
- Declaration of conformity (1 page)
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Thermoclines
Appendix I
One of the unique features offered by Garmin is See-Thru technology. See-Thru technology allows
the GPSMAP 188/188C/238 to "see" through thermoclines and helps locate fi sh where they live;
Understanding the Chart
and fi sh love thermoclines! A rough defi nition of a thermocline is a break in water where the water
temperature changes faster than the water above it. Thermoclines are shown as the weakest colors (see
pg. 14)
Thermocline
115
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