![]() The transducer converts electrical energy received from the head unit into sound energy before transmitting it out into the water. If you think of the main unit as the brains of the operation, the transducer is the eyes and ears. Your fish finder will consist of a head unit with a display screen, whether colored or grayscale, and a transducer. Our favorite – Deeper CHIRP plus (Wifi, 3 Frequencies and sonar cones).Learning how to read a sonar fish finder all starts with understanding how they work in the first place.įish finders can map the underwater domain by using sonar technology, which stands for Sound Navigation and Ranging.Deeper Start (nobody needs this model).Deeper Pro Plus (Wi-Fi and GPS) – (a good choice).For those who don’t want or need mapping – Deeper Pro (Wi-Fi) (we can’t understand why?).Bluetooth-only is dead in the water – Deeper 3.0 (Third iteration of the Bluetooth model).Incidentally, our highest recommendation goes to the GPS-equipped model. It’s probably a good idea to bring an external fish finder battery pack to recharge on the fly. Time will tell to what degree this feature drains your fish finder battery. The Deeper Pro Plus depth finder also boasts GPS functionality. If you’re fishing from the bank, you’ll never miss out on useful info again. Not only can they transmit at depths of up to 260 feet (80 meters), but the resulting transduction cone also provides a much greater level of detail. The Wi-Fi depth finders transmit their signal 15 times per second – that’s twice as often as the classic Deeper. The transducer’s scanning frequency has also undergone a change. You can easily find holes where fish hide. At only 7°, it has a diameter of only 2 m or 6 feet at this depth. Really, those holes are where a good deal of the fish like to hang out.Īt this depth, the narrow sonar beam comes into play. Practically speaking, this means that smaller holes in the bottom won’t be recognized or displayed. You want to find hotspots? In our view, the 100 kHz frequency with a 47° aperture beam angle is completely superfluous from a depth of 49 feet (15 meters), the sonar cone has a diameter of nearly 43 feet (13 meters). The 290 kHz frequency is transmitted at a 16° aperture angle, which creates an ideally narrow transduction cone for distinguishing even moderate depressions in the bottom. With the Deeper CHIRP, you can view one frequency or another at any given time. Don’t confuse this selectability with dual-beam technology (which transmits and displays both frequencies simultaneously). The Deeper CHIRP portable fish finder supports three different sonar beam angles: you can choose between 100 kHz, 290 kHz and 675 kHz frequencies. We’ll start with the most important aspect: at a price of over €250 / USD 250, the Deeper CHIRP isn’t exactly a throw-away item. In the following comprehensive Deeper fish sonar review, we go in-depth on the use and functionality of this fish finder. You can even use the Deeper when you’re ice fishing during the coldest times of the year. Especially when you’re fishing in the city and standing shoulder to shoulder with other anglers, a portable and castable fish finder like the Deeper can really put you ahead of the pack. The Deeper CHIRP is also perfect for those who favor urban fishing. With this Deeper Smart sonar, you can immediately improve your chances of making a catch. You can attach the wireless castable Deeper CHIRP plus to your fishing rod while fishing from the bank, your (belly) boat or fishing kayak, bridges or wherever else you’ve found your favorite hotspot. The Deeper CHIRP castable fish finder from Deeper (Lithuania, Europe) is primarily intended for quick, on-the-move fishing trips.
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