Fishing with modern gadgets is moving from the category of luxury to the standard for any enthusiastic boater, especially when it comes to navigation and finding fish. Echo sounder installation Inflatable boats have their own unique features that are very different from rigid hull mounting, and owning a polyvinyl chloride boat requires a special approach to attaching elements and protecting electronics from moisture and mechanical damage.
Company Lowrance It has established itself as a manufacturer of reliable devices, whose sensors are able to work even in difficult conditions of shallow water and overgrown reservoirs. Lowrance Hook or more advanced series Elite Not only does it ensure a clear picture on the screen, but it also ensures the longevity of the entire system in an aggressive aquatic environment, and planning errors can result in the loss of expensive equipment or damage to the vessel's cylinders.
In this article, we will take a look at everything from the location to the final sonar setup, how to avoid the typical novice errors and make the device as comfortable as possible, and a well-assembled system will allow you to focus on the main thing - catching the trophy fish, rather than fighting interference or a discharged battery.
Selection of location and preparation for installation
The first and most important step is to determine the optimal location of the head unit and sensor. Lowrance echoer It should be set so that the screen reads well in bright sunlight, but does not interfere with the control of the boat or catching fish. Often, PVC boat owners prefer to attach the display to a removable base or use universal brackets that can be quickly dismantled.
For the sensor (transducer) the situation is more complicated, since its position directly affects the quality of the signal. The sensor should be immersed in water strictly horizontally, without a blockage with the nose or stern, otherwise there will be strong interference from cavitation. Inflatable boats often use transom mounts, but they need to be positioned so that when hitting an obstacle, the sensor can recline without damaging the balloon or the engine's lower unit.
You need to think ahead about the route of the cable, the wires should not be stretched or rubbed against the sharp edges of inflatable elements, seats or accessories, use soft insulation materials to protect hoses and cables in contact with the boards, improper installation of communications is the most common cause of equipment failure in the field.
Required tools and materials
For a high-quality installation, you will need not only the device itself, but also a number of additional consumables, which are often forgotten to buy in advance. Hermetization The number one priority is the joints, because salt water and spray quickly disable uninsulated contacts, and standard out-of-the-box kits are usually not enough for reliable installation on water.
You'll need tools to work with electricity and plastic, pay special attention to the quality of soldering or clipping terminals, as engine vibration can weaken mechanical connections. The use of shrink tubes with adhesive layer is mandatory for all connections outside the boat hull.
- 🛠️ A drill or screwdriver with a set of drills for metal and wood (for a transom board).
- 🔌 Cable cross-section of at least 1.5-2 mm2 for connecting power to the battery.
- 🧴 Silicone sealant of neutral curing and high quality insulation.
- 🔩 A set of stainless bolts, nuts and washers (diameter 4-6 mm).
- ✂️ Pieces, a knife to clean the insulation and passatize.
Separately, it is worth mentioning the safety lock. Lowrance It recommends that a fuse be installed in the break of the plus wire as close to the battery as possible, which will protect the wiring from fire in the event of a short circuit, which is a critical safety requirement on any boat.
☑️ Installation readiness check
Sensor attachment: transom or insert
There are two main ways to install the sensor on the PVC boat: transom (removable) and permanent (moult or through). For most anglers using inflatable boats, the best option remains the best option. transom-holdingIt makes it easy to remove the sensor after fishing, which prolongs its life and reduces the risk of theft.
When mounting on the transom board, it is important to observe the vertical, the sensor should be lowered into the water parallel to the keel line. If the boat has a high transom or specific geometry, you may need to make an extension cord or use a rotary mechanism. Make sure that the sensor area does not pass air bubbles from the operation of the engine, as this creates "dead zones" on the screen.
⚠️ Attention: Never attach the sensor rigidly to an inflatable cylinder without a rigid base. The vibration and movement of the PVC material will quickly cause the cable to break or damage to the sensing element itself.
If you choose the through-fitting option (which is less common on PVC, but perhaps on plywood-bottomed boats), the hole must be carefully sealed. Use a special marine sealant and sealing washers. The inside of the nut is also advisable to put on a sealant so that moisture does not get to the thread and does not cause corrosion.
Nuances of glossing work
When you go out into the plane, the sensor can catch air if it's set too high or at the wrong angle. Lowrance The solution is to lower the sensor down or change the angle of inclination, but make sure it doesn't create too much water resistance.
Cable laying and sealing
The wires are a process that requires pedantry: the battery-to-head power cable and the block-to-sensor cable must be stacked to minimize the risk of rubbing them. PVC boats often use special plastic boxes or corrugated corrugated boxes to protect them, but most importantly, avoid contact with sharp corners.
All wire connections, especially those outside, need to be protected. The best way is to solder them with thermal shrinkage, and twist them in constant vibration and humidity is a temporary solution that will eventually lead to oxidation of the contacts and loss of signal.
| Type of connection | Location. | Recommended protection | Risk of rejection |
|---|---|---|---|
| Salting + shrinkage | Street/Water | High. | Minimum |
| The terminal shoe | Dry compartment | Medium | Medium (vibration) |
| Screw + tape. | Anybody | Low. | Highly |
| RCA connectors | Overboard. | Demands sealant | High (corrosion) |
When you lay the cable to the sensor, leave a small amount of length (loop) before entering the mount, which compensates for jerks when hitting obstacles and prevents the wire from pulling out of the sensor body. Remember to lock the cable along the side or transclosure with plastic clamps, but do not drag them over so as not to overwhelm the veins.
Use different colors for plus and minus, even if they are in the same braid, which will make it much easier to diagnose and repair in the future if you have to increase the length or change the wiring section.
Power connection and system setup
Connection to the power supply should be carried out through a fuse, the nominal value of which meets the requirements of the instructions for your model. LowranceUsually, a 3-5 Amp safety lock is enough for sonars, but always check the specification of a particular device. Direct connection to the battery without protection is unacceptable.
Once all the components are physically connected, you can start setting up. Turn on the device and give it time to calibrate. In the settings menu, select the type of sensor you have installed if it is not automatically determined. First, use the sonar's automatic mode so that the device can select the optimal sensitivity parameters.
Pay attention to the frequency setting. Shallow water and fish hunting are better suited to high frequencies (e.g., 83 kHz or 200 kHz), whereas for greater depths and overall bottom view, low frequencies (50 kHz) are more effective. Lowrance technologic DownScan or StructureScan require separate contrast settings and palettes for better detail.
⚠️ Attention: Do not test the sounder "dry" (without immersing the sensor in water) for more than a few seconds. the operation of the emitter in the air can cause it to overheat and fail.
Sensitivity is the key to success. Too high sensitivity will make noise on the screen, too low will not show small fish. Adjust this setting to the fishing conditions.
Typical errors and troubleshooting
Even with careful installation, there can be problems with image quality. One of the most common mistakes is the wrong depth of immersion of the sensor. If it is too high, there will be signal gaps at speed. If it is too low, resistance and risk of damage will increase. The middle ground is experimental, but the bottom of the sensor should be below the bottom of the boat by at least 15-20 cm.
Fishers often encounter tips from motors or other electronic devices. Lowrance You get random bands or noise, you check the mass quality, bad contact of the sub-wire with the engine body or the battery is the main cause of electrical interference, and it's also worth checking if the power cable is running too long parallel to the sensor cable.
- 📉 Problem: The screen goes out when you add gas. Decision: Check the battery charge and the power wire cross section.
- 🌊 Problem: The bottom is going down at speed. Decision: Lower the sensor below or change the angle of inclination.
- 🔌 Problem: No signal from the sensor. Decision: Check the integrity of the cable and the reliability of the connector connection.
Regular maintenance is also necessary. After every fishing trip, especially in salt water, wash the sensor and mounts with fresh water. Periodically check the tightening of the fasteners, because vibration has the ability to unwind them. Timely detection of a small crack in the sensor body will save you from buying new expensive equipment.
Can I leave the Lowrance sonar on a boat in winter?
Although many models are waterproof, the frost destroys the plastic cells, the screen and, most importantly, the battery inside (if built-in), or the battery itself. Also, the device left in a prominent place is a tasty piece for thieves. Remove the head unit and the sensor, store them in a warm dry room.
Which battery is better to choose for a sonar?
For sonars Lowrance And other navigational electronics are ideal traction batteries (GEL or AGM) that can give off power for a long time in low currents and easily tolerate deep discharge, unlike starter car batteries, which quickly degrade in this mode.
Why does the sonar show a double bottom?
The double bottom effect often occurs when the signal is highly sensitive, or when the signal is reflected off a solid bottom, then off the water surface, and back off the bottom again. This is normal in shallow water. To remove the arch, you can reduce the sensitivity or enable the Surface Clarity function, if it's available in your model.