When looking up portable fish finders, you more than likely have come across something by the name of castable fish finders. Castable fish finders are an entire breed of their very own, but they still absolutely qualify as a portable fish finder. You see, castable fish finders – just like normal portable fish finders – don’t require to be plugged in for their power source. They run off of their own battery solutions that are built right into them, defining them as a type of portable fish finder. However, the form and function of them are quite different and unique when compared to everything else that is out there on the market.
Castable fish finders work pretty much exactly as the name would suggest. You tie these buggers to the end of your fishing line, and you then cast it into the water around you. They are activated once they come into contact with liquid, and they float just like a bobber when you cast one into the water.
With castable fish finders, you can either have it trail behind you as you slowly troll through an area, or you can cast and reel as many times as you would like to get an accurate reading of your entire surroundings in your area. It’s certainly a different take on the whole portable fish finder game, but with their popularity continually increasing, it’s important to know just what they are whenever you hear them mentioned. And, at the rate they’re increasing in popularity, you’re probably going to hear them mentioned much more often as time goes on.