Fishing with PVC boats becomes much more efficient with the use of modern electronic devices. side-scan It's a device that not only detects depth and topography, but also visualizes underwater objects on the sides of the boat, opening up new possibilities for fish locating, surveying waters and even finding sunken objects.

However, not all models are suitable for inflatable boats. It is important to consider the design of a PVC vessel, its dimensions, material and operating conditions. In this article, we will discuss how to choose the right sonar, install and adjust it correctly, and avoid the typical errors that can negate all the benefits of side scanning.

Why Side Scanning Is Important for Fishing with PVC Boats

Traditional single-beam sonars only show a vertical picture under the boat, which limits the ability of the angler, especially in large bodies of water or when searching for fish in the coastal zone. Side scanning (Side Imaging) This problem is solved by creating a detailed image of the underwater landscape at a distance of up to 100 meters on either side of the boat.

For PVC boats, this is especially true for several reasons:

  • 🔍 Searching for fish in shallow water Side scanning allows you to examine hard-to-reach areas where predators often accumulate.
  • 🚤 Safety of navigation Visualization of underwater obstacles (snags, rocks, nets) helps to avoid damage to the boat.
  • 🎣 Saving time Instead of accidentally moving around the water body, you purposefully examine promising areas.
  • 📊 Analysis of bottom relief Side scans show changes in depths, pits and eyebrows, which are often places of fish parking.

However, not all side-scanned sonar models work equally well on PVC boats. Lowrance HDS Live or Garmin EchoMAP UHD It's also important to consider that inflatable boats have limited space to mount equipment, so the compactness and weight of the device are key.

📊 What kind of fishing is closer to you?
spinning
feder
trolling
On the float.
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Key parameters of the choice of sonar for PVC boat

When choosing a side-scanned sonar for an inflatable boat, you need to pay attention to several critical specifications. A mistake in choosing can lead to the fact that the device will either not work effectively or its installation will be impossible.

The main parameters that should be guided:

  • 📏 Scanning frequency the higher the frequency (e.g., 455/800 kHz bal Humminbird Helix), the more detailed the image, but the less depth of penetration.
  • 🔋 Type of sensor (transducer) - for PVC boats are better suited transomic (installed on a transom) or case-in.
  • 📱 Display size and type Small boats are more comfortable compact screens (5-7 inches), but with good resolution (see below).800×480 and above.
  • 🔌 power supply Most of the echoers work from 12 VHowever, you need to consider the battery capacity (minimum). 7-9 Ah for stable employment).
  • 🌊 Moisture resistance Look for models with a protection class not lower IPX7 (for example, Raymarine Dragonfly).

Special attention should be paid compatibility of the sensor with the material of the boatSome transducers require rigid attachments, which is problematic for inflatable structures. depreciation or magnetobase (e.g. from Deeper).

Parameter Recommended value for PVC boat Example of model
Frequency of side scanning 455-800 kHz Humminbird Helix 7
Depth of scanning (max.) before 60-100 m sideways Garmin Panoptix Livescope
Type of sensor attachment transom or suction cup. Deeper Pro+ 2
Screen resolution from 800×480 Lowrance Elite FS
Water protection class IPX7 higher Raymarine Axiom+
⚠️ Attention: If you plan to use a sonar on a fast run (for example, when trolling), choose models with a high speed. stabilized-sensor (for example, Garmin GT56UHD-TMOrdinary transducers at speeds above 10 km/h They can be very disturbing.

Top 5 Side Scanning Sounds for PVC Boats

There are many models on the market, but not all of them are equally well suited for inflatable boats. 5 best sonarswhich combine functionality, reliability and convenience of installation on PVC.

Comparative characterization:

  • 🥇 Humminbird Helix 7 CHIRP MEGA SI+ GPS G4N The best choice for professionals. The only sonar in this segment with support for MEGA Side Imaging (1.2 MHz), giving almost photographic image quality. Suitable for boats from 3 m in length.
  • 🥈 Garmin EchoMAP UHD 73sv - optimal value for money. Ultra-high detailUHD) and built-in GPS It's easy to set on a transom.
  • 🥉 Lowrance HDS Live 7 Perfect for trolling because of the function LiveSightIt's a real-time fish system that requires a powerful battery.12 Ahhh).
  • 💰 Deeper Pro+ 2 It's a low-cost wireless device, and it's attached to a line or a suction cup, which is convenient for small PVC boats, and it works with a smartphone.
  • 🌟 Raymarine Dragonfly 7 Pro It's the best choice for sea fishing, it's salt water resistant and it's built-in. Wi-Fi to transmit data to a tablet.

When choosing, pay attention to screen-size - on a small boat (up to 3.5 m) compact models are more convenient5–7"(a) whereas for large vessels (a)4 m+) may be considered 9–12" It's also important to have a display. GPS And the ability to save maps of the bottom, which makes navigation much easier.

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If you fish in shallow water (up to 10 m), give preference to models with a high scanning frequency (see below).800 kHz They're sharper, but they're losing out in the depths of penetration in large bodies of water.

Step-by-step instruction for installing a sonar on a PVC boat

The nuances of the sounder on an inflatable boat, the main problem is that there's no rigid body, which makes it difficult to attach the sensor, but with the right approach, you can achieve stable performance even on a small PVC boat.

Main installation stages:

  1. Selection of display space - it should be in the range of sight, but not interfere with the control of the boat, optimally - on the dashboard or a special bracket.
  2. Transducer's cement - for PVC boats suitable:
    • 🧲 Magnetic holders (e.g. from Deeper).
    • 🔗 Depreciation-depreciated transom brackets.
    • 🛟️ Sensors on the line (for temporary use).
  • Cable laying - wires should be securely secured with screeds and not dangle when moving.
  • Power connection Use sealed plugs and a safety lock on 3-5A.
  • Adjustment and calibration - I'll be sure to do it. autotuning In the sounder menu for correct operation.

    • The transom mounting of the sensor will require:

    Bracket with shock-absorbing pads | Fixing hermetic | Strings for cable fixation | Multimeter for voltage check | Drilling tool (if necessary) |->

    If you install a sensor on the suction cup, make sure the surface of the boat is clean and fat-free. Magnetic mounts are not suitable for aluminum transes – they can damage the PVC coating. In this case, it is better to use brackets on bolts with rubber gaskets.

    ⚠️ Attention: When you install the sensor on the transom, avoid places where the engine blades create turbulence. 30cmOtherwise, the signal will be noisy.

    Set up the sounder for maximum efficiency

    Even the most expensive sonar will not perform well unless it is set up correctly. Sensitivity, Noise Filters and Sensor Calibration.

    The main parameters that need to be adjusted:

    • 📶 Sensitivity (art.Sensitivity) - Start with. 80–90% And adjust it according to the conditions. 70%To reduce interference.
    • 🔄 Frequency range Choose for detailed scanning 800 kHzAnd for deep-sea photography, 455 kHz.
    • 🎛️ Noise filter (Noise Rejection) Turn on at the middle level if the image is "lit".
    • 📏 Scope of side scanning - to search for fish, install 20-30 m on the sides, to examine the bottom, 50–100 m.

    For sensor calibration:

    1. Launch the sonar in mode Auto Mode.
    2. Walk slowly over a smooth area of water (deepness) 3-5 m).
    3. Select from the menu Calibrate Sonar And follow the instructions on the screen.
    4. Check the image quality – if there is stripes or blur, adjust TVG (Time Variable Gain).

    To save the bottom maps, use the function Recording This will allow you to create a database of perspective points and come back to them next time. Lowrance HDS data can be exported to .slg And analyze them on a computer.

    How do you save the sounder settings?

    Most modern echoers (for example, Garmin or Humminbird) allow you to save the settings profiles on the SD card. Menu → Save Settings → Export to CardThis is useful if you use a sonar in different water bodies with different conditions.

    Typical errors when using a sonar on a PVC boat

    Many anglers have problems with inflatable boat sonars, most often due to improper installation or adjustment, and consider the most common mistakes and how to avoid them.

    Error 1: Incorrect attachment of the sensor

    • 🚫 Sensor is set too close to the screw screen-jamming.
    • 🚫 Fixing without depreciation vibrations distort the signal.
    • 🚫 Use of magnets on the aluminum transom PVC damage.

    Mistake 2: Unaccounted for features of PVC boats

    • 🚫 Cables are not fixed. screw-in.
    • 🚫 The screen is installed under direct sunlight hard to see.
    • 🚫 Battery of insufficient capacity sonar shuts down in the cold.

    Error 3: Incorrect settings

    • 🚫 Too sensitive noise-image.
    • 🚫 Frequency range incorrect poor detail or low depth scanning.
    • 🚫 Lack of calibration mismapping.

    To avoid these problems, always test the sonar at low speed (see below).3-5 km/hIf the image is unstable, try changing the angle of the sensor or use it. anti-turbulence The settings (if they are in your model)

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    Before each outing, check the tightness of the sensor mounts and cables, even a small leak can cause the sonar to fail.

    Echo sounder maintenance and care

    The side-scanned sonar is a precision electronic device that requires careful handling, especially for PVC boats where equipment is exposed to moisture, vibrations and temperature changes.

    Basic rules of care:

    • 💧 After each exit, wipe the sensor and screen. freshwater (Especially if you are fishing in salt water)
    • 🔌 Keep the sonar in. dry-place temperatured 0–30°CAvoid direct sunlight.
    • 🔋 Check once a season. battery-pin If necessary, clean them with sandpaper.
    • 🛠️ Before winter storage, remove the sensor and lubricate the mounts silicone.

    If the sonar is not used for a long time (for example, in winter), remove the battery and store it separately at temperature. +10–20°COnce every 2-3 months, recharge it to avoid a deep discharge.

    When transporting sonar:

    • 🚗 Fix the display and sensor in shock-absorbing.
    • 📦 Cables twist carefully, avoiding overburdens.
    • ❄️ In the cold, do not leave the sonar in the car overnight - this can damage the display.
    ⚠️ Attention: If the sonar starts to work unstable after winter (for example, spontaneously turns off), check the battery capacity. 20% a year of storage without recharging.

    FAQ: Frequent questions about PVC boat sonars

    🔹 Can a side-scanned sonar be installed on a 2.8 m long PVC boat?

    Yes, but with reservations, compact models with wireless sensors are suitable for such boats. Deeper Pro+ 2) or sonars with a small screen (5"The key is to fix the sensor properly so that it doesn't hang around when you're driving, and the transom mounts on these boats are less reliable, so you'd better use suction cups or attachments.

    🔹 What battery is needed for a side-scanning sonar?

    Minimum capacity. 7 AhhhBut for a stable job, it's better. 9-12 AhThe best option is gel-basedBecause they're not afraid of vibrations and deep discharge. Delta DT 1209 or Varta Professional Dual Purpose.

    🔹 Why do the sounder screen appear stripes or "snow"?

    It's connected to jammingPossible reasons:

    • The sensor is set too close to the screw.
    • Too sensitive (sensitivity is too high)Sensitivity).
    • Poor contact in nutrition or oxidized terminals.
    • The operation of other electronic devices nearby (radios, sonars).

    Try to reduce the sensitivity to 70% And check the sensor attachment.

    🔹 Can I use a side-scanned sonar for winter fishing?

    Yes, but with limitations, most sonars operate at temperatures up to -10°CBut the displays can slow down in the cold. Deeper Start or Garmin Striker 4 You need to keep the water out of the connectors when the temperature drops.

    🔹 How to save the bottom maps from the sonar for further analysis?

    It depends on the model:

    • Humminbird:export to .son or .slg through Menu → Recording → Export.
    • Garmin: save tracks in .gpx through Waypoints → Export.
    • Lowrance: Use the program Insight Genesis to make maps.

    It is convenient to use for analysis Google Earth or specialized programs such as Navionics Boating.