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Posting a reply to: RE: Anybody doing the side imaging sonar from either Hummingbird or Lowrance?

Muskie Fishing -> Muskie Boats and Motors

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Posted 8/29/2010 8:38 PM (#457269 - in reply to #456576)
Subject: RE: Anybody doing the side imaging sonar from either Hummingbird or Lowrance?

Esox Maniac gave a good explanation. The LCD display itself is a digital device. The transducer/receiver is analog. The analog sonar information needs to go through A/D conversion for display. There can be a small amount of loss or distortion during the a/d conversion process. Resolution and accuracy will depend on the bit depth of the converter. Regardless of whether the input is digital or analog, the output needs to be digital for an LCD display. Analog input requires conversion, digital does not assuming the display can handle the input resolution. Sorry for my rather simplistic original post.