Echo sounder installation Lowrance The wrong installation of the transducer (sensor) can lead to distortion of the readings, loss of signal or even damage to the hull of the boat. 5 proven ways of fasteningWe will tell you about the choice of the optimal location for the sensor and will reveal critical errors that 80% of PVC boat owners make when installing sonars.
The peculiarity of PVC boats is their soft and flexible material, which does not allow the use of standard fastening methods suitable for rigid hulls. It is important to consider not only the technical specifications of the transducer (for example, angle of view or frequency), but also the technical specifications of the transducer. boat-movementWe looked at the experience of fishermen and the official recommendations. LowranceTo provide the most practical guide.
If you plan to use the sonar to search for fish in shallow water, to survey deep water, or just to navigate, properly mounting the sensor will guarantee accurate readings, and it will also save you from having to redo the work through the season.
Why Standard Fixing Methods Are Not Suitable for PVC Boats
Many echo-foil owners Lowrance They're trying to apply the same techniques to PVC boats as they would to aluminum or fiberglass vessels, and that's leading to two major problems:
- 🔧 Deformation of the hullHard brackets or screws break through PVC under load, especially at high speed.
- 📉 Loss of signal: Vibrations and curvatures of the material shift the sensor, which distorts the data on the depth and relief of the bottom.
- 💧 Leaks.: Leaky mounts cause water to enter the boat.
For example, the popular way of attaching to the transom (feed) with the help of rods is only suitable for boats with a hard transom. flexion And then we're going to gradually reduce the fixation, and the same goes for screw screws, even with rubber pads, they're going to loosen the holes over time.
Another mistake is ignoring. transducer angleOn a soft case, the sensor can change position when moving, which leads to "lighting" of the screen or false readings, for example, at speeds above 20 km / h, an improperly fastened sensor can be used to detect the sensor. Lowrance Elite FS It starts to fix the turbulence of the water instead of the bottom.
Choosing the optimal location for the sensor installation
Before you install the transducer, determine low-impedanceThere are only three zones on PVC boats:
- Nose part It is suitable for slow trolling, but requires a long cable.
- Middle end of bottom It is optimal for universal use, but difficult to install.
- Tranza (feed) Easy to drive, but sensitive to motor turbulence.
The best option for most models Lowrance (for example, Hook2 4X or Striker Plus) — shift from center to stern by 30-40 cmIt allows you to:
- 🎯 Avoid turbulence from the engine.
- 📊 Get a stable signal when moving.
- 🔧 Simplify the cable to the control panel.
Avoid mounting the sensor motor-driven - vibrations and bubbles from the screw will distort the readings, and it is not recommended to install a transducer on the stiffness-box - they create additional interference.
Before the final mount, check the selected location with a portable sonar or smartphone with a sonar app, which will help to avoid "dead zones" on the screen.
5 Ways to Fix Lowrance Transducer on a PVC Boat
We took it. the most reliable and verified The methods that experienced anglers use, each with its pros and cons depending on the type of boat and operating conditions.
| Method of attachment | Pluses | Cons | Suitable for models |
|---|---|---|---|
| Suction cup with adhesive base | Quick installation, no PVC damage | Unreliable at high speed, requires frequent inspection | Hook Reveal, Elite FS |
| Rubber screed holder | Universal, suitable for any transducer | It can shift when you're excited. | Striker Plus, Eagle |
| 3M VHB duct tape | Strong and durable installation | Difficult to dismantle, requires surface preparation | All models. |
| Homemade aluminium bracket | Reliable fixation, adjustable angle | Requires skills in working with metal | HDS Live, Carbon |
| Pocket-mounted PVC | Ideal for inflatable boats, protects the sensor | It's hard to make without experience. | All models. |
Let's look at each method in more detail.
1. Mounting on a suction cup with adhesive base
The simplest and fastest method, which does not require modification of the boat, is suitable for temporary use or rented PVC boats, suction cups with adhesive base (for example, from the suction box). Ram Mount) can withstand speeds of up to 15 km/h but their reliability is reduced at higher speeds.
Instructions:
- Clean and degrease the attachment site (use isopropyl alcohol).
- Stick the base of the suction cup to the bottom of the boat.
- Secure the transducer in the holder and fix on the suction cup.
⚠️ Attention: When using this method, check the sensor's fixation before each outing, and even a slight 5-10 mm shift can cause signal loss at depths greater than 20 meters.
Rubber holder on nylon screeds
A universal method that is suitable for most transducers LowranceRubber holder (e.g. from Scotty) is fixed by screeds to the stiff ribs or special loops on the boat.
Advantages:
- 🔄 It is easy to adjust the angle of the sensor.
- 🛠️ It doesn't require drilling or glue.
- 💪 It can withstand speeds up to 30 km / h.
For reliability, use screeds with a width of at least 4 mm and duplicate the fastening with rubber pads to avoid rubbing PVC.
Clean and dry the attachment site |
Put the rubber pads under the screeds |
Control the tension of the ties (do not pull!)|
Check the fixation after the first 10 minutes on the water.
3. 3M VHB adhesive tape - professional installation
Double-sided tape 3M VHB provide semi-separable It's a method that's suitable for the permanent installation of the sensor, but requires careful preparation.
Step by step:
- Degrease the surface of the boat and the sensor with acetone or isopropyl alcohol.
- Plug the tape on the transducer, having previously cut it in shape.
- Press the sensor tightly against the boat and hold for 30 to 60 seconds.
- Do not operate the boat for 24 hours – the adhesive must be fully polymerized.
⚠️ Attention: If you're going to take the tape down, you might be able to damage the PVC. If you're going to take the sensor out for the winter, use it. plug-in (for example, 3M 4010).
4. Homemade aluminum bracket
For those who are willing to spend time making a customized mount, the aluminum bracket allows you to do so. pinpoint And securely lock it.
Materials:
- 📏 Aluminum corner 20 20 20 mm.
- 🔩 Stainless bolts M5 with nuts-lambs.
- 🧲 Rubber gaskets with a thickness of 3-5 mm.
The bracket is attached to the boat's stiffness ribs through rubber pads, which prevents PVC damage. The angle of the sensor is regulated by bolts.
How to avoid corrosion of the bracket
To protect the aluminum from corrosion, cover the bracket with car antigravity or epoxy, which is especially important when using a boat in salt water.
5. Installation in the pocket of PVC
Ideal for soft-bottomed inflatable boats: PVC pockets (you can order from the boat manufacturer or make them yourself) lock the sensor and protect it from impact.
Pros of the method:
- 🛡️ Full protection of the transducer from mechanical damage.
- 💦 Tightness – water will not fall under the sensor.
- 🔧 Possibility of rapid dismantling.
Use PVC of the same thickness as the boat material to make your pocket. PVC glue (for example, Bostik 2402 or Poxipol).
Typical Installation Errors and How to Avoid Them
Even experienced anglers make mistakes that cause the sonar to malfunction. TOP-5 misses And how to fix them.
- Incorrect angle of sensor inclination:
If the transducer is pointed too up or down, the sonar will show a false bottom or lose signal in shallow water. Lowrance — 0-5° below the horizontal.
- Ignoring turbulence from the motor:
At speeds above 10 km/h, the propeller creates bubbles that the sonar perceives as interference, so the solution is to shift the sensor to the left or right of the center.
- Bad cable laying:
The transducer's cable should not hang around in water, which creates additional resistance and risk of hooks, and then tie it with screeds along the ribs of the stiffness.
- Lack of sealing:
Even a small gap between the sensor and the boat will lead to water leakage. silicone sealant for PVC (e.g., for PVC) Soudal Fix All).
- Savings on fasteners:
Cheap screeds or glue stretch under load, and invest in quality materials, and it saves time and nerves.
Another common problem is that Incompatibility of the transducer with the type of boatFor example, sensors with narrow viewing angles (e.g., Lowrance Airmar TM150M) do not work well on wide PVC boats due to the large signal scattering. Lowrance TotalScan).
Before buying a transducer, check it is compatible with your sonar model and boat type. Use the official configurator on the Lowrance website.
Maintenance and care of the sensor after installation
Proper care extends the life of the transducer and provides accurate readings.
- 🧼 After every exit Wash the sensor with fresh water to remove salt, sand and algae.
- 🔍 Check once a month. anchorage and the tightness of the compounds.
- 🛠️ Before winter storage, remove the sensor (if possible) and lubricate the contacts. silicone.
- 📉 When artifacts appear on the sounder screen (for example, “herring trees” or false signals) check tilt-angle.
If you use a boat in salt water, treat the metal parts of the mount. corrosion-proof (for example, CRC Marine GreaseThis will prevent the contact oxidation and prolong the life of the sensor.
Pay special attention cableHe must not:
- 🚫 To twist or to bend.
- 🚫 Contact the sharp edges of the boat.
- 🚫 Be stretched – always leave a small margin of length.
Comparison of fastening methods: what to choose?
The choice of method depends on type of boat, budget and operating conditionsWe've put together a comparative table that will help us determine.
| Criteria | Suction cup. | Screeds + rubber | Adhesive tape | Aluminum bracket | PVC pocket |
|---|---|---|---|---|---|
| Reliability | ⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ |
| Difficulty of installation | ⭐ | ⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ |
| Cost | ⭐ | ⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ |
| Suitable for salt water | ❌ | ✅ | ✅ | ✅ ( with processing | ✅ |
| Possibility of dismantling | ✅ | ✅ | ❌ | ✅ | ✅ |
For temporary (boat rental, rare trips) suction cup or screeds are fine. permanent in fresh water is optimal adhesive tape 3M VHBIf you often go to the sea or on rough water, the best choice is to go to the sea. aluminum-bracket or PVC pocket.
FAQ: Frequent questions about installing Lowrance sensor on PVC boat
Can I attach the sensor to the transom of an inflatable boat without a hard bottom?
No, on fully inflatable boats (e.g., Sevylor or Intex) mounting on the transom will lead to deflection of the material and loss of signal. screed-strip Or a special PVC pocket.
Which glue is best used for PVC?
For reliable fixation suitable:
- Bostik 2402 - Professional glue for PVC, resistant to vibrations.
- Poxipol - epoxy glue, suitable for metal and plastic parts.
- 3M 5200 - Sea sealant, does not lose its properties in salt water.
Avoid universal adhesives (for example, "Moment") - they can not withstand loads on water.
What if the sounder shows a false bottom?
Causes and solutions:
- 🔹 Wrong angle of sensor → Adjust the slope (optimally 0-5 down).
- 🔹 Engine turbulence → Move the sensor to the left/right of the center.
- 🔹 Air bubbles under the sensor → Check the tightness of the attachment.
- 🔹 Low voltage → Check the battery (should be at least 11.5 V).
How to protect the sensor when transporting a boat?
Use this:
- 🛡️ Protective case Neoprene or PVC.
- 🧲 Magnetic holder Temporary attachment of the sensor to the board.
- 📦 Foam inserts In the boat bag, if the sensor is removable.
If the sensor is rigidly fixed, avoid transporting the boat in a deflated state - this can deform the mounting site.
Can I use one sensor for two sonars?
Technically possible, but not recommended. Lowrance They're designed to work with one device, and when you connect to two sonars at the same time,
- 📉 Signal quality will deteriorate.
- 🔋 The load on the sensor will increase, which will reduce its service life.
- 🚫 The manufacturer's warranty is cancelled.
If you need a backup screen, use it. cleavage (for example, Lowrance SonicHub) or a second sensor.