The first underwater "fish finder" was a flasher. It was very, very crude by today's standards and some people thought it would make catching fish so easy you would destroy the lake's, river's and reservoir's.
That obviously did not happen and in this week's Pro's Pointer, Johnnie Candle has few reminders while using today's electronic's.
Johnnie Candle, NWC World Walleye Champion & N.D. Fishing Hall of Famer, "There is no doubt the advancements in our sonar are absolutely incredible in the last decade and we're all using and relying on our sonar more and more to help us locate and catch more fish. There are a few things that I have to remind myself about the limitations of sonar when I'm out in the boat. The first one is the fact that there are dead spots because of the physics of sonar we are not always seeing everything that's down there because of that we want to take several approaches over a piece of structure or a possible fishing spot just to make sure we are not missing what's down there. The second thing I remind myself is we are not seeing nearly as much as we think we are. For example, here in 21 feet of water we are only seeing one-third of that or seven feet of the bottom. My boat is over eight feet wide, so I'm not even seeing the width of my boat. So when you're out there and you see one or two fish just like these remember they travel in schools and I'm sure they got a lot of friends. I'm Johnnie Candle and that's this week's Pro's Pointer."
Next Week, Candle focuses on colors, specifically what color of crankbait you should consider using.