Equipping an inflatable boat with navigational electronics often raises more questions for owners than installing equipment on a rigid housing. emitter And the need to install the cable without the risk of damage, and the right sounder sensor on a PVC boat is not just a matter of comfort, but a guarantee of safety and efficiency of fishing.
Unlike metal or plastic vessels, which use end-to-end or overhead transducers, a delicate approach is required: the soft side, variable bottom geometry during pumping and constant contact with water dictate their conditions. Lowrance, Garmin or Humminbird Regardless of the brand, the principles of installation remain similar, but require attention to detail.
Errors in the editing phase can lead to dead zones on the screen, false depth readings, or even the loss of expensive equipment while driving. In this article, we will take a look at everything from location selection to sealing connections to making your sonar work like a clock.
Choosing the optimal location for the sensor
The first thing that starts with the installation is to define the mounting area on the cylinder, and the ideal place is to have the sensor vertically relative to the water when the boat is moving, and if the emitter is looking up or sideways, you get a distorted picture of the bottom topography.
Most often, the sensor is mounted on a transom cylinder, shifting it slightly sideways from the center to avoid interference from the flow of water created by the fisherman's legs or motor. However, on some boat models, especially with a wide cockpit, it is more convenient to place it. transducer on the nose canister.
⚠️ Warning: Never install the sensor in an area where it can be hit with your feet or tackle when boarding a boat or fishing. Mechanical damage to the soft cylinder at the mounting site can lead to injury.
It's important to consider the length of the regular cable, and the standard 6 meters might not be enough if you decide to place the display on one side and the sensor on the other side, running the wire around the perimeter. Always plan the route of the cable in advance.
There are several proven fixation methods, each with its own pros and cons, depending on the frequency of use of the boat and the readiness for temporary or permanent modifications of the hull.
Methods of fastening: from temporary to permanent
The most popular and safe method for the balloon is the use of industrial adhesives. VelcroOne part is glued to a low-fat tank, the other part is glued to a plastic base of the sensor, which allows you to quickly remove equipment after fishing, which is especially true when storing a boat in a deflated state.
The second option is the use of reinforced scotch 3M VHBIt holds the Velcro stronger, but requires careful dismantling so as not to damage the PVC fabric. For heavy sensors or speedboats, this method may be preferable.
The third way that experienced water-engineers choose is to make a removable pocket out of the same fabric as the boat, and the pocket is glued to the balloon with a special glue for PVC, and a sensor is inserted inside, which provides perfect streamlinedness and protection.
- 📌 Velcro Quick, convenient, suitable for seasonal use.
- 📌 Scotch 3M High reliability, but more difficult to shoot.
- 📌 A sewn pocket - maximum aesthetics and aerodynamics, requires sewing skills.
Regardless of the method chosen, the surface of the balloon should be completely clean and fat-free. Use alcohol or a special cleaner, but avoid aggressive solvents that can damage the material.
Before gluing any elements, heat the balloon and adhesive base with a hair dryer to a temperature of 20-25 degrees - the adhesion will be much higher.
Installation and sealing technology
The installation process begins with a thorough surface preparation, where the attachment site is wiped with alcohol, followed by adhesives of Velcro or Scotch, and it is important to allow the glue to be polymerized for 24 hours before first use on water.
The sensor itself also requires preparation. If you're using Velcro, make sure that the plastic sole of the transducer is flat. Garmin GT10 Sometimes a transitional area is required.
| Materials | Drying time | Temperature conditions | Resistance to water |
|---|---|---|---|
| Pvc glue | 24 hours. | +15...+25°C | High. |
| Scotch 3M VHB | 1 hour (full 24h) | +10...+30°C | Very high. |
| Silicone sealant | 12 hours. | +5...+35°C | Medium |
Pay special attention to the cable's entry into the sensor case, which is the most vulnerable place for moisture to enter, and even if the cable seems sealed, additional insulation will do.
⚠️ Warning: Do not use regular office tape or tape to fix the sensor. Under the influence of ultraviolet light and water, they will lose properties in one season, and you risk losing the sonar.
For maximum reliability, you can use a large-diameter heat shrink tube at the exit point of the cable, and by heating it with a hair dryer, you create a monolithic connection that can withstand any load.
☑️ Checklist before launch into the water
Cable laying and connection protection
Laying a cable on an inflatable cylinder is a task that requires care. The cable should not be stretched, but it should not hang, otherwise there is a risk of hooking it or a slash, the best option is to fix along the side with soft ties or the same Velcro.
In places where the curves, especially the transom or nose, the cable should have a smooth bend radius. Sharp clamps can damage the inner veins, which will lead to loss of signal or complete failure of the device.
If the cable passes through the entire side to the opposite edge, where the screen is installed, use special channels or simply glue it to the inside of the side of the side with small sections of tape, which will prevent it from falling under the oars or legs.
The head-mount connectors are better protected immediately from splashes, although most modern sonars are protected. IPX7Constant exposure to salt water or under jet pressure can disrupt leakage.
How to protect the connectors from oxidation?
Use dielectric lubrication. Apply a thin layer of lubricant to the contacts before joining, and this will prevent moisture from entering and oxidizing the metal, which is especially true for fishing in salt water.
Echo sounder setting and calibration
After the physical installation, it's time to digitally tune the first launch, and it's better to do it on the water, in a static boat position, and that's going to allow you to assess the actual depth readings and the interference.
You have to choose the right type of emitter from the menu, and if you're using a universal sensor, make sure you pick the right frequency. 200 kHz detailing 50 kHz for deep depths.
An important parameter is sensitivity (Sensitivity).SensitivityIn calm water, it can be increased to find small fish, and in the wind, it can be reduced to cut off noise from surface turbulence.
- 🌊 Noise suppression Helps to remove the “porridge” on the screen in a strong wind.
- 🐟 Symbols of fish Turn on only for training, experienced users prefer arcs (arches).
- 🚤 Scrolling speed - regulates the speed of the movement of the picture, useful for drift or rapid progress.
If the boat is moving and the picture is floating or disappearing, try changing the angle of the sensor, sometimes just putting a small pad under one side of the mount to align the beam.
The right calibration of sensitivity is more important than the presence of additional features, and a clean picture without noise is the key to successful fishing.
Maintenance and winter storage
The right installation is only half the battle, and for the equipment to last, it needs to be taken care of, and after every fishing trip, especially in salt water, the sensor and cable need to be rinsed with fresh water.
When preparing the boat for winter storage, the sensor should be removed if Velcro is used, which will prolong the service life of the adhesive layer and the balloon itself, which will be deflated and stored in a box without excessive voltage at the attachment site.
The cable should be wound with wide rings, avoiding inflections, and it is better to store the sonar and sensor in a warm, dry room, away from direct sunlight, which destroys plastic.
Check the condition of the attachment periodically, the glue and Velcro age over time, and if you notice that the sensor has started to "walk" or unstick, immediately re-fix.
⚠️ Warning: Do not keep a boat with a sensor glued in an unheated garage at negative temperatures without additional protection. frost can make the adhesive brittle, and the first deformation of the balloon sensor will fall off.
Frequently Asked Questions (FAQ)
Can a sonar be used at a speed of more than 20 km / h with such a mount?
Yes, if you use high-quality glue or reinforced Velcro, and the sensor is streamlined, but at high speeds, the risk of cavitation increases when air bubbles disrupt the signal, in which case it helps to shift the sensor closer to the nose or use fairings.
Do I need to oil the sensor before the season?
No, modern plastic sensors don't require lubrication, but instead, some types of oils can erode the plastic of the transducer's body, and it's just clean water to clean the dirt.
Why does the sonar show "porridge" on the screen when moving?
It's probably a broken geometry, because the sensor doesn't fit tightly into the balloon, and it gets air, and it can also be too sensitive, or it can be because the motor is running, and it's creating vibration.
How to check if the cable is sealed?
Visually inspect the cable along the entire length for cracks, you can lower the connected sensor into a container of water and move the cable — if the readings on the screen start to jump or there is a noise, then the leakage is broken.