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I recently mounted a Garmin 498 unit and transducer, had it out twice and it seems like it has signal lost or confusion in shallowwater, while drifting. In <2' of water it will blink like a lost signal and show roughly 4'. I thought it was a setting problem with deflection but the manual does not have anything on it??

Work rather good running in 6'-10', loses signal sometimes. The tranducer is not moving either, it's staying parallel with the hull.
 

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Ankle Deep Custom Rods
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Mine starts blinking somewhere around 2', but it doesn't bother me if I lose signal in less than 2' of water while drifting. There is a keel offset setting I think its under the Sonar tab in the menu.
 

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Back in da Saddle
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10,160 Posts
Use the offset and remember it has enough power that in less than 2 foot the mud will affect it...
John
 
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