I just installed a new EchoMap UHD 64cv but the sounder return is a ULD (ULTRA LOW DEFINITION). I even tried just lashing it to a stick and submerging the transducer a foot away from the boat and it was still terrible. I used to get more info from a flasher than this gives. It seems to read the depth ok and lists the bottom depth in feet but the graphic is just 1/4" square pixels. Is there an adjustment or calibration I need to do?
My new EchoMap UHD 64cv is a ULD (ULTRA LOW DEFINITION)
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