Simrad P79 50/200kHz In-Hull Transducer Instruction Manual

Introduction

This manual provides essential information for the proper installation, operation, and maintenance of your Simrad P79 50/200kHz In-Hull Transducer. Please read these instructions carefully before proceeding with installation or use to ensure optimal performance and prevent damage to your equipment or vessel.

Figure 1: Simrad P79 In-Hull Transducer. This image shows the compact design of the P79 transducer, suitable for in-hull mounting.

Setup and Installation

The Simrad P79 is an in-hull transducer designed for easy installation with an adjustable deadrise angle. Proper installation is crucial for accurate depth readings and fishfinding capabilities.

Pre-Installation Considerations:

• Hull Material: The P79 is designed for fiberglass hulls. It is not recommended for cored hulls.
• Hull Thickness: Fiberglass should be no more than 5/8" (16 mm) thick for optimal performance.
• Location: Choose a location in the hull that is free from turbulence (e.g., away from propellers, keels, strakes, and other transducers). The area should be solid fiberglass, not cored, and accessible for installation.
• Deadrise Angle: The P79 features an adjustable deadrise angle (0 to 22 degrees) to compensate for the hull's V-shape, ensuring the transducer beam is directed straight down.

Installation Steps:

1. Prepare the Mounting Surface: Clean the chosen area inside the hull thoroughly. Ensure it is dry and free of oil, grease, or loose debris.
2. Test Fit: Place the transducer in the chosen location and adjust its base to match the hull's deadrise angle. Ensure the transducer face is parallel to the waterline.
3. Secure the Transducer: Follow the specific instructions provided in the transducer kit for securing the unit to the hull. This typically involves using a marine-grade sealant or epoxy to create a solid, air-free bond between the transducer and the hull. Air bubbles will significantly degrade performance.
4. Cable Routing: Route the 9-pin cable to your compatible Simrad display unit, ensuring it is protected from sharp edges, heat, and excessive bending. Secure the cable every 18 to 24 inches (45 to 60 cm) to prevent strain.
5. Connect to Display: Connect the 9-pin connector to the appropriate transducer port on your Simrad fishfinder or chartplotter. Refer to your display unit's manual for specific connection details.

Important: Always follow the detailed installation instructions included with your transducer kit. Incorrect installation can lead to poor performance or damage to your boat.

Operation

The Simrad P79 transducer works in conjunction with a compatible Simrad fishfinder or chartplotter to provide depth and fishfinding information. Once installed and connected, the operation is primarily controlled through your display unit.

Key Operational Features:

• Dual Frequency: The P79 operates at 50 kHz and 200 kHz.
  • 50 kHz: Provides greater depth penetration (up to 1,200 ft) and a wider beam (45 degrees) for scanning a larger area, ideal for deep water and identifying large schools of fish.
  • 200 kHz: Offers higher resolution and detail in shallower water (up to 800 ft) with a narrower beam (12 degrees), excellent for distinguishing individual fish and bottom structure.
• Depth Capability: Capable of detecting depths between 800 to 1,200 feet, depending on frequency, bottom conditions, and water clarity.
• Beamwidth: The transducer emits a conical beam. The 45-degree beam at 50 kHz covers a wider area, while the 12-degree beam at 200 kHz provides more focused detail.
• Power Output: This is a 600 W (RMS) transducer, providing sufficient power for its specified depth range.

Using with Your Display Unit:

Refer to your Simrad display unit's user manual for detailed instructions on selecting frequencies, adjusting sensitivity, setting depth ranges, and interpreting sonar returns. Ensure the transducer type is correctly configured in your display unit's settings.

Maintenance

The Simrad P79 In-Hull Transducer requires minimal maintenance due to its protected mounting location. However, periodic checks are recommended to ensure continued optimal performance.

Routine Checks:

• Cable Inspection: Periodically inspect the transducer cable for any signs of wear, cuts, or damage. Ensure all cable ties are secure and the cable is not pinched.
• Connection Check: Verify that the 9-pin connector is securely plugged into your display unit and that there is no corrosion on the pins.
• Internal Hull Area: If accessible, occasionally check the area around the transducer inside the hull for any signs of moisture ingress or degradation of the sealant/epoxy bond.

Cleaning:

Since the transducer is mounted inside the hull, it is not exposed to marine growth. However, if any dust or debris accumulates on the internal face of the transducer, gently wipe it with a soft, damp cloth. Do not use abrasive cleaners or solvents.

Troubleshooting

If you experience issues with your Simrad P79 transducer, consider the following common troubleshooting steps. Always refer to your display unit's manual for specific diagnostic procedures.

Common Issues and Solutions:

• No Depth Reading or Intermittent Readings:
  • Check Connections: Ensure the 9-pin cable is securely connected to both the transducer and the display unit.
  • Power Supply: Verify that your display unit is receiving adequate power.
  • Transducer Settings: Confirm that the correct transducer type (P79) and frequency (50/200 kHz) are selected in your display unit's sonar settings.
  • Air Bubbles: Air trapped between the transducer and the hull, or within the bonding material, can block sonar signals. This often requires re-installation.
  • Hull Material: Ensure your hull is solid fiberglass and within the recommended thickness (max 5/8"). Cored hulls or excessively thick hulls will severely impede performance.
  • Interference: Check for electrical interference from other onboard electronics. Try turning off other devices to isolate the source.
• Inaccurate Depth Readings:
  • Deadrise Adjustment: Ensure the transducer's adjustable base is correctly set to compensate for your hull's deadrise, directing the beam straight down.
  • Calibration: Calibrate the depth offset in your display unit if available, to account for the transducer's position relative to the waterline.
  • Water Conditions: Extreme turbulence or aerated water (e.g., from propellers) can affect accuracy.
• Poor Fish Arch Definition or Bottom Detail:
  • Frequency Selection: Use 200 kHz for better detail in shallower water. Switch to 50 kHz for deeper water and wider coverage.
  • Gain/Sensitivity: Adjust the gain or sensitivity setting on your display unit. Too low, and you miss targets; too high, and you get clutter.
  • Noise Filter: Experiment with noise filter settings on your display unit.

If problems persist after following these steps, contact Simrad customer support or a qualified marine electronics technician.

Specifications

Warranty Information

Specific warranty terms and conditions for the Simrad P79 transducer are typically provided with the product packaging or can be found on the official Simrad website. Please retain your proof of purchase for warranty claims. The warranty generally covers defects in materials and workmanship under normal use.

For detailed warranty information, please visit the official Simrad website or contact Simrad customer support.

Customer Support

If you require further assistance with installation, operation, troubleshooting, or warranty claims, please contact Simrad customer support. You can typically find contact information (phone numbers, email, support portals) on the official Simrad website.

When contacting support, please have your product model (P79) and any relevant serial numbers ready.

Official Product Videos

No official product videos from the seller were found in the provided data that meet the embedding criteria (e.g., m3u8 format, seller as creator_type). For instructional videos, please check the official Simrad website or their authorized YouTube channels.