Re: reading fishfinders.
So the line is moving front to back, not side to side? if you are sitting still, how does it read? thanks!
2nd question first: It reads the same way moving or sitting still. The sonar is a constant series of evenly-timed 'pings' which send a sound signal into the water. The sound signal reflects back off of
everything under the water: the bottom, rocks, brush, fish, even little baitfish and muddy water may reflect back a weak sonar return echo. When you see the screen moving that is only the display of the sonar's interpretation of the echoed back sonar pings over time- it doesn't show or mean that your boat is moving.
1st question: watch the following video and watch the segment from 2mins26secs several times. This segment shows a cone-shaped "beam" below the boat which is essentially the shape of the sonar ping signal. I wish this was explained further
in your Lowrance manual but once again Lowrance falls down on the people part of their business. The
old Eagle explanation works well enough I guess. Actually it is pretty good.
Once you wrap your mind around how sonar works go ahead and ask some informed questions!
How to use a Fish Finder! - YouTube
