Operation Manual
Page 26
... For more information about fishing modes, refer to default settings. Installation Keel Offset All transducers measure water depth from Installation menu the transducer to the lowest part of sonar settings geared to the bottom. That is 3.5 feet below the transducer, it will be input as -3.5 feet. Reset Fishing Mode Resets... keel is useful when you may not receive any depth readings, or you want to the water surface. Sonar Operation | Elite-4x HDI Transducer Keel Keel Offset (-3.5 feet) 24 When the unit is in manual mode, you may receive incorrect depth information.
... For more information about fishing modes, refer to default settings. Installation Keel Offset All transducers measure water depth from Installation menu the transducer to the lowest part of sonar settings geared to the bottom. That is 3.5 feet below the transducer, it will be input as -3.5 feet. Reset Fishing Mode Resets... keel is useful when you may not receive any depth readings, or you want to the water surface. Sonar Operation | Elite-4x HDI Transducer Keel Keel Offset (-3.5 feet) 24 When the unit is in manual mode, you may receive incorrect depth information.