Deep for PVC boat: selection and installation of sonar

Finding catchy places on the pond turns from a lottery into a predictable process when you have a reliable one in your hands. depth-meterModern sonars allow you not only to see the bottom, but also to distinguish the structure of the soil, find snags and track the movement of fish. For owners of inflatable boats, this gadget becomes an indispensable tool that saves time and improves fishing efficiency.

However, the choice of equipment for inflatable boats has its own specifications, differing from the selection of equipment for a rigid hull. Sonar sensor It requires a specific attachment, and the device itself must be resistant to vibrations and sprays. In this article, we will discuss the nuances of selection, installation and tuning of the sonar to make your launch as productive as possible.

Fishing on floatboat It often involves maneuverability and access to shallow water where the boat will not go, which is why the compactness and mobility of the sonar are important, and a well-chosen model will allow you to feel confident in deep pits and grassy mounds.

Principle of operation and types of echoers for inflatable boats

The basis of any echo sounder is sonarPVC boats are most commonly used single-beam or double-beam models operating at 83 kHz and 200 kHz. For depths up to 30-40 meters, typical for most rivers and lakes, a standard frequency of 200 kHz is quite enough for a clear picture of the bottom.

Modern devices often feature CHIRP technology, which greatly improves target separation, which means you can distinguish a small fish joint from a bottom relief or a single large individual. For inflatable boats, where the sensor is often close to the surface and can shift, this clarity is critical.

By design type, sonars are divided into several categories, each of which has its own advantages for PVC owners:

• 📱 Smartphone sonars: The sensor is thrown or attached to the board, and the image is displayed on the phone screen, ideal for those who do not want to clutter the boat with unnecessary screens.
• 🖥️ Monoblocks: The screen and the processor are combined in a single case. The classic, time-tested version is often more reliable in harsh conditions.
• 🔋 Portable kits: A separate screen, powered by an internal or external battery, and convenient for quick installation and removal.

⚠️ Attention: Not all sonars work properly at shallow depths (less than 0.5 meters). If you plan to fish in shallow water, make sure that the model features a "small water" or a special mode.

The choice between wired and wireless depends on your preferences. Wired models are more reliable and free of interference, whereas wireless ones (Bluetooth/Wi-Fi) eliminate unnecessary cables in the cockpit of a boat. PVC boats The wireless option may be more convenient, since you do not need to pull the wires through the entire cylinder.

Selection criteria: power, screen and protection

When buying equipment, you should pay attention to the power of the emitter. For inflatable boats, it does not make sense to chase a huge power of several kilowatts, since they are rarely used in ultra-deep places. The optimal option will be a power of about 200-600 watts, which will ensure a confident break down of up to 50-70 meters.

The size and type of screen also play a role, and high-brightness and anti-reflection displays are good to read in the sun. Color screen Black is preferred because it allows better visualization of the density of the bottom and the presence of vegetation, and a diagonal of 3.5-5 inches is the middle ground for boats up to 4 meters long.

And don't forget the protection of the hull, because in an inflatable boat, it's constantly exposed to moisture, splashes and possible falls. IPX7This is a system that provides protection against short-term immersion in water, and it will save the device if it accidentally falls overboard or a wave is thrown at it.

Autonomy is another key factor. If you're using a monoblock with an integrated battery, check the operating time with the backlight on. For multi-day fishing, the availability of external power or the ability to work from the backlight. power bank That's a huge plus.

Methods of attaching the sensor on a PVC boat

Installing a sensor (transducer) on an inflatable boat is a creative process that often raises the most questions. The rigid brackets used on metal boats won't work here. The main task is to ensure that the sensor is in constant contact with water without damaging the balloon.

The most common method is to use suction cups. Many manufacturers complete their models with special suction cups that are attached directly to a smooth section of the balloon or to a hard transom. It is important to degrease the surface before gluing for maximum adhesion. However, in hot weather, suction cups can fall off, so you need control.

Alternative fastening options include:

• 🎣 Paddle fastening: The sensor is attached with tape or clamps to the paddle blade, the oar is immersed in water and fixed in a seclusion, simple, but requires a free oar.
• 🧱 transom plate: And you put a small plastic or wooden platform on the hard transom, and you attach the sensor to it, and that's the most reliable way to avoid contact with the balloon.
• 🛶 Remote buoy: The sensor is attached to a separate small float that is towed behind the boat on a line, ideal for avoiding engine interference, but adds extra drag.

⚠️ Attention: When you attach the sensor directly to the balloon, make sure that the suction cup or Velcro does not come into contact with the valves or seams. Pressure at the attachment point can lead to micro-damage of the PVC material over time.

If you use motorIt's a great solution to fix the sensor on its lower unit, and there are special girths that allow you to put the transducer directly on the foot of the motor, which ensures the perfect position of the sensor and no interference from the propeller if the motor is pulled back.

Setup and calibration of equipment

After you physically fit it, you have to set the instrument up correctly. The first and most important setting is to choose the language and the units of measurement. Make sure that the depth is displayed in meters instead of feet to avoid confusion on the water. Also check the temperature if your sonar supports this function.

Sensitivity is a fine-tuning parameter. The factory usually has averages, but you have to change them for different conditions. High sensitivity will show small fish and details of the bottom, but add "noise" on the screen. Low sensitivity will clear the picture, but it can hide small fish.

Recommended settings to start with:
Frequency: 200 kHz (for depths up to 30 m)
2. Scroll speed: Average
3. Sensitivity: 70-80%
Display mode: Fish ID (turn off for accuracy)

Many fishermen mistakenly rely on fish symbols.Fish IDThis feature often fails, mistaking for fish air bubbles or algae. Experienced users prefer to turn off this mode and learn to read "arches" on the screen. Real fish, when passing through the beam, leaves a characteristic arc trail.

What is a sounder's dead zone?

The dead zone is the space right under the sensor that the instrument can't see, it depends on the frequency of the radiation and the angle of the beam. For lateral view, the dead zone is larger, for vertical view, less. It's important to remember this when fishing in plumb.

Remember to calibrate the speed of sound in water if you fish in salt water or when there is a strong change in temperature. The speed of sound in fresh and salt water is different, which can give an error in depth readings of up to 5-10%.

Top popular models for PVC boats

The market offers many solutions, but there are models that have proven to be leaders in the inflatable boat segment, combining reliability, compactness and a user-friendly interface. Below is a comparison table of popular devices.

Model	Type	Frequency (kHz)	Max. depth (m)	Features
Garmin Striker 4	Monoblock	77/200	244	Built-in GPS, solid body
Deeper PRO+	Smartphone	290/455/900	80	Wi-Fi, GPS, 3 beams, compactness
Lowrance Hook2-4	Monoblock	83/200	152	CHIRP technology, auto-tuning
Humminbird PiranhaMAX 4	Monoblock	83/200	183	Big symbols, simplicity.

Model Garmin Striker And it's often chosen for having built-in GPS, which allows you to tag catch points and go back to them, and it turns the sonar into a navigator. Deeper It will be an ideal choice, as it can be simply thrown into the water from any side without installation.

Budget Chinese analogs are also in demand, and they may be inferior in image quality and response speed, but for a beginner who is just trying a sonar, they can be a good option to start with, and the main thing is to test the actual waterproofness of such devices before serious use.

Echo sounder maintenance and care

And depthmeter After every fishing trip, especially in salt water, the appliance and sensor must be washed with fresh water, and the salt cries and can damage the contacts or the body.

Store the device in a dry place, preferably in the original case. Avoid direct sunlight on the screen when turned off - this can lead to burnout of the matrix. The battery, if it is removable, it is better to store separately in a charged state.

Check the condition of the cable regularly. In an inflatable boat, the cable is often rubbed against the side or clamped in the snags. Any microcrack in the insulation will cause moisture to enter the device and the device to fail. If damage is detected, the insulation must be restored immediately with shrinkage or sealant.

⚠️ Attention: Never leave the sonar on if the sensor is outside the water. The operation of the emitter "dry" can lead to overheating and irreversible damage to the crystal inside the sensor.

Winter storage requires special preparation, make sure that the device is completely dry so that mold does not form inside, and it is recommended to remove the batteries from the compartments if they are not used for a long time, to avoid oxidation of the contacts.

Frequently Asked Questions (FAQ)

Can I use a fisherman in winter to fish from the ice?

Yes, many sonar models, especially portable and smartphone ones, work well in winter, but you should keep in mind that in the cold, the battery capacity decreases, and the screen can "brake." The sensor can be lowered into the hole manually or use a special buoy float.

Will the sonar show the fish that is standing right under the boat?

It depends on the angle of the cone beam. In the center of the cone ("dead zone"), the device may not see objects; fish under the boat itself often does not show up until the boat has shifted slightly; two- and three-beam models have a smaller dead zone compared to single-beam ones.

Do I need a GPS sonar if I have a navigator on my phone?

GPS in the sonar is not so much for navigation as for point markings. You can save the coordinates of the catch spot and return to them later. Not all models have synchronization with the phone, so built-in GPS is often more convenient.

Why does the sonar show "porridge" instead of bottom?

There are several reasons for this: too high sensitivity, the motor is running close to the sensor (air bubbles), or the sensor is in the turbulence zone. Try to reduce sensitivity or change the location of the sensor attachment.