How to Use a Old Vintage Fish Finder / Sonar TUTORIAL - Eagle Magna, Hummingbird, Lowrance & Garmin

How to Use a Old Vintage Fish Finder / Sonar TUTORIAL - Eagle Magna, Hummingbird, Lowrance & Garmin. I used a old Eagle Magna fish finder in the 90's for many years. It brought me great joy. When the unit failed in 2021 I found a great working Magna III. Same technology with a few extra features. I recently purchased a new modern Garmin unit with all the bells and whistles. Curiosity I guess. Probably could have bought 20 or 30 of the old fashion sounders for the cost but times change so why not give the new technology a try. I made these clips using the old fishfinder over the course of a few years. It starts really basic but there is some advanced stuff in there. I go back and forth as well with a little fishing mixed in. Making this video, watching the old sounder, I could only think how well the old technology works. It was a joy to use. I know lots of folks still use these and they are readily available so if anyone is wondering and want to see a old fish finder at work with lots of cool examples, here it is. The same basic output goes for all brands such as Hummingbird, Lowrance, Garmin and more. In addition these examples certainly would be a great starting point for modern units. 0:00 Introduction 0:12 Sonar Trick 2:58 Sensitivity 5:00 Plotter Mode 6:59 GREYLINE = ROCKY BOTTOM 8:07 GOOD MARKS 13:11 Follow Contour Lines 14:53 Fishing the Channel 17:38 Thick Bait 19:46 THERMOCLINE