FD-F700L Dual-Frequency 2D Forward-Looking Multi-Beam Imaging Sonar

The FD-F700L is a compact, high-performance forward-looking multi-beam imaging sonar, engineered for reliable medium-range underwater detection, imaging, and collision avoidance in shallow-water and coastal environments.

Core Advantages

✅ Dual-Frequency Flexibility

Selectable frequencies (700kHz/900kHz/1.2MHz, default 1.2MHz) with a 1.5° central beamwidth at 1.2MHz, balancing detection range and resolution for diverse operational needs. Custom frequencies are available upon request.

✅ Wide Coverage & Precise Imaging

100°maximum horizontal field of view for comprehensive forward scanning, paired with 256 high-density beams and 5mm distance resolution, delivering clear, detailed underwater imagery. The detection range is continuously adjustable from 2–80m, with a refresh rate up to 25Hz for real-time updates.

✅ Robust Safety & Reliability

Equipped with a dedicated collision prevention mode (900C model) and an ultra-small working blind spot of ≤0.3m, it ensures safe navigation for vessels and ROVs. It supports a maximum operational speed of 6 knots with no functional loss, and a 100m maximum operating water depth for coastal and shallow-sea missions.

✅ User-Friendly & Low-Power Design

Features CW/CHIRP transmission modes (auto/manual selectable), 1100Mbps Ethernet interface with standard communication protocol, and a single waterproof connector for easy installation. With an average power consumption of ~6W (peak ≤15W) and 18–50VDC input voltage, it is ideal for battery-powered devices and long-duration operations. Weighing only 700g/300g (air/water, excluding cable), it is easy to integrate into small vessels, ROVs, and portable survey equipment.

Key Applications

Ideal for shallow-sea survey, small vessel collision avoidance, ROV/ROV navigation, coastal engineering inspection, and aquaculture area monitoring.