How To Select a Sonar Transducer?

To be honest, the transducer is the heart of the fishfinder systems which changes the electrical pulses into sound waves or the acoustic energy and then back again. It is generally a device which sends sound waves and then receives its echoes. So, you can say that the fishfinder comprehends whatever is below the surface of the water. 


Which Transducer mounting style you must choose for your boat? 
  • Thru hull:  It is the threaded bronze, stainless steel, nylon which passes via a hole at the bottom of the hull. There are various choices of styles like the external football-shaped head with flow of water smoothed with the fairing block which also corrects the deadrise or the sideways slope of the hull. There are round mushroom head thru-hulls that are either ways, flush mounted or semi-flush. Most of them are challenging to install but are likely to provide you the best signal qualities. The displacement powers and the sailboats basically use thru-hulls. 

  • Tilted element - These tilted transducers are the type of semi-flush thru-hull devices with the ceramic elements that are titled inside the housing. It compensates the boat’s deadrise and has an objective of the beaming straight down the bottom which results in stronger echo returns and more accurate depth readings. These are a good choice for the large and trailered center consoles that walk around Cuddy cabin power boats which cannot accommodate a thru-hull with all its fair in blocks. These usually provide the flush installation to the hull. If you want something for a hull deadrise, it might angle up to 25 degrees. It also has the high-speed results like over 30 knots.
  • Transom Mount: This one is basically an adjustable angle bracket that is bolted or screwed to the transom along with the transducer hanging behind or below the hull. With the simple installation, it might encounter more water flow that’s turbulent. These are versatile and famous for the trailerables. It can be used on fiberglass, wood, steel hulls or aluminium with the single or the twin I/O, jet drive propulsion systems and outboard. When you talk about speed, it has a moderate performance

  • In-hull:  These transducers are installed against the insides of the bottom hulls and with this, the in-hull transducer sends out the signal via the hull. These do not need the direct water contacts. Then there are shoot via hull transducers that don't need the direct water contact as these are glued to the inside of the hull with epoxy or silicone. An in-hull transducer becomes one of the best choices for the trailered boat and with a vessel that is a stepped hull for numerous  types of high performance hull designs just because there is no drag or the potential for fouling or a hull penetration. There’s no combined temperature sensor. It can be installed all the while when the boat is in the water. If you want a deadrise angle up to 30 degrees, the selected location should too close to the centerline and be apt so that the transducer is well below the water line at all times. 
Trolling Motor: This one is permanently installed or claimed outside the propeller hub of the trolling motor. It is the new product from the Lowrance which clamps to the bow mount and the cable steered trolling motor. It also lets you see the picture like images at 455/800kHz. All you need to do is aim the transducer with the trolling motor’s remote pedal as it is a horizontal range of 150’. It has an attaching trolling motor’s shaft that is steerable electronically and mechanically with a 417kHz beam.

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