How does a fish finder work:

• Fish finders are objectively the best way for a fisherman to hunt. A fish finder does not help you catch the fish, but it’ll help you identify where they’re hiding.
• Using a fish finder to find smelt in anadromous rivers can help you to track the movements of the fish during its life cycle. The device emits an ultrasonic pulse and measures the time between when the signal returns and when another set of sonar echoes arrive at a receiver that’s mounted on the boat. If it takes longer than expected for your return echo to appear, then you know there is something hiding in that water column.
• Fish finders have been the benefits. They are simple and easy ways to find or track down a fish and help make anglers more successful at fishing. When we say modern fish finders, we mean everything from simple handheld units that use built-in sonar or an antenna for tracking down your target, to complex bottom-tracking devices that use motion sensors and GPS technology. Whatever the size of your baits and tackle, there’s a modern fish finder available to help you find them When you are looking for a fish, the main methods of finding them are the eyes, the ears, and the nose. These methods work properly depending on water conditions and the weather.
• Fish finders help us to find the fish easier than we would have done otherwise.