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50 kHz 83 kHz
50 kHz I believe is a lower frequency and has the capability of penetrating deeper , say more than a 1000 ' . The cone on the 83 kHz is wider , which should give you more coverage in the same depth . I think for what we are doing , both are more than capable . Generally we are fishing less than 200 ' . I have been watching this video from doctor. Sonar , and he said that the 200 frequencies on the two transducers are different some how , but did not get into specifics . 200 kHz will generally give better detail in water depths of about 100' .
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