Does Anyone Have A Float For A Fish Finder Transducter On Youtube
An in-hull (aka shoot-through) transducer mounts to the inside of the hull and transmits and receives sonar signals through fiberglass, eliminating the demand for drilling holes in the hull.
This as well eliminates the need to remove the boat from the h2o for installation, and there will be no protrusions under the gunkhole. But there are downsides. For i, the transducer must be mounted on solid fiberglass; in-hull transducers volition not part in cored fiberglass hulls without special modifications. As well, in-hull models exclude a sea-temp or speed sensor, so those will take to be added externally on the transom, if desired. That said, a properly positioned in-hull transducer offers outstanding performance when looking for fish and bottom features, with but minimal loss in range at the deepest capabilities of the transducer.
Read Next: Enquire Ken: Install a Transducer Without Drilling a Hole in the Hull
One of the latest in-hull models is the M285HW chirp-ready transducer from Airmar. It operates at one,000 watts on a — high-frequency band of 150 to 250 kHz with a fixed beam angle of 25 degrees for maximum coverage under the gunkhole out to depths of 500 feet. The base of operations hands compensates for deadrise angles ranging from goose egg to 22 degrees to ensure the beam shoots straight downward. This is critical for optimal performance and authentic depth readings. It is suitable for powerboats upward to 25 feet in length. Before getting started, make sure the transducer and the plug are compatible with your sonar unit.
Skill Level: 2 of 5
Finish Time: Approx. 3 hours (excluding on-h2o testing)
Tools and Supplies
• Airmar M285HW in-hull transducer ($741.99, anchorexpress.com)
• Disc sander
• Thin, sealable plastic purse
• Cable ties
• Broomstick
• Protractor or iNstall app
• Straightedge
• Carpenter'south square
• Level
• Phillips screwdriver
• Pencil
• Isopropyl alcohol and store rags
• 14 oz. propylene glycol ($vi.49/Star brite 28 oz., westmarine.com)
• Adhesive such every bit Marine-Tex ($36.99/ 14.half dozen oz., jamestowndistributors.com)
• Mixing cup and stir sticks
• Petroleum jelly
• Electricians ophidian (for routing cables)
Though the transducer is inside the hull, it is crucial that in that location are no external strakes, intakes or other hull features that would crusade aerated water to flow over the transducer'southward location. Location depends on the type of hull and propulsion. On inboard planing hulls, just ahead of engine(southward) and prop shafts is the all-time spot; deportation hulls allow for positioning farther forward. On outboards and sterndrives, an aft location is optimal, except on stride hulls, which necessitate placement forward of the steps. Locate the transducer as shut to the centerline as possible, If the mounting surface is not smooth, grind it flat with a disc sander.
Establish a operation baseline by connecting the transducer to the fish finder and hanging the transducer overboard with the gunkhole floating at rest in at least 25 anxiety of water and viewing the bottom return. At the same site, test the transducer inside the hull at the selected location. Place the transducer inside a thin plastic pocketbook partially filled with h2o and cinched tightly with a cable tie. Wet the mounting surface and printing the active face of the transducer against the hull. Compare the bottom return to the baseline, and if the reading is similar, the mounting location is skilful. If not, y'all will need to find another location and repeat the test.
Mensurate the deadrise — the bending of the gunkhole's V — at the mounting location. A free app chosen iNstall enables your phone to be used to make up one's mind the deadrise angle. Another way is to create a straightedge either inside or outside the hull that runs parallel to the waterline, then use a protractor to find the angle. Using a carpenter's square, draw a line on the inside of the hull perpendicular to the centerline through the middle of the mounting location. Identify the number on the flange of the transducer base that corresponds to the deadrise, and find the matching number on the opposite side. These will align with the line you lot drew.
Tip: To foreclose overheating of the liquid inside the transducer housing, mount in-hull models in cool, well-ventilated areas as far away every bit possible from inboard engines or other oestrus sources such as generators or air conditioners.
Ensure that the mounting surface is costless of fiberglass wax, pigment, oil or moisture. If necessary, lightly sand and clean again with isopropyl alcohol, then redraw the line that positions the base. At present yous're ready to secure the base to the inside of the hull. Remove the transducer from the base housing. Use a bonding agent such as Bondo 401, Marine-Tex Epoxy Putty or 3M 5200 Marine Agglutinative/Sealant. Utilise the adhesive per the manufacturer's recommendation for optimal adhesion, and press the flange of the base of operations firmly in place to form a liquid-tight seal. Allow the bonding material to cure per the manufacturer's instructions.
Once the bonding fabric has cured, pour 14 ounces of propylene glycol (nontoxic antifreeze) into the housing. Lubricate the O-ring from the pinnacle of the housing with petroleum jelly. Advisedly identify the transducer into the housing to avoid causing the propylene glycol to overflow. Turn the transducer until the number on the rim that corresponds with deadrise is direct over the alignment boss closest to the keel. The transducer should drop into place. Insert a safety washer and screw into each of the two holes by the alignment bosses. Snug up each screw to 1.3 foot-pounds. Road the cable to the fish finder and plug it in.
Source: https://www.boatingmag.com/story/how-to/mounting-an-in-hull-transducer-on-a-boat/
Posted by: smithmisho1978.blogspot.com
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