Garmin Fishfinder 160 Blue Owner's Manual

Also see for Fishfinder 160 Blue: Specifications Owner's manual

1InstallationTransducersTransducersThe transducer acts as the eyes and ears of your new sonar. Propertransducer selection and installation are critical to the operation of yourunit.Included in the Optional Package is a 200/50kHz frequency (10°/40°cone angle), depth and temperature sensing, transom mount transducer.This transducer provides good all-around performance. Other optionaldual frequency transducers are available from your local dealer or GARMIN.The transducer transmits sound waves toward the bottom in a coneshape. The wider the cone angle, the larger the coverage area at a givendepth. While it is good to see as large of an area as possible, it is best toselect a frequency setting that suits the water that you are on.With a dual frequency transducer, you may select either a 200kHzfrequency, a 50kHz frequency or both. The 50kHz frequency settingprovides a wide cone angle. This wide cone angle produces a large coveragearea, but less detailed bottom resolution. In areas where bottom contourschange quickly, this can result in “dead zones” where fish cannot be seen.In contrast, the 200kHz frequency setting provides a narrow coneangle. This narrow cone angle produces a smaller viewing area (comparedto a wide cone angle at the same depth), but with improved bottomresolution and a smaller dead zone.The Dual frequency setting will provide you the most accurate depthand fish returns by transmitting signals at both 200kHz and 50kHz.XX50 kHzwide cone angle200 kHznarrow cone angledead zonefish not seenwww.reelschematic.comwww.reelschematic.com