Just a few suggestions: In the Eagle line-up, I'd look at either the Fishmark 480 unit for monochrome, or the 500C/640C units in color depending on your preferences. All are 1500 watts of power with enough resolution to easily do what you want. In the Lowrance line-up, look at the 500 series color units (like the 510C). Those have 2400 watts of power and again, enough resolution to get the job done.



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