3 km of optical cable
A 3 km optical cable is typically a single-mode fiber designed for long-distance, high-speed, and low-attenuation data transmission, ideal for UAV, FPV, and telecom applications.
Key Specifications
- Fiber Type: Most 3 km optical cables use G657A2 or G.652.D single-mode fiber, which ensures stable, interference-free transmission over long distances .
- Attenuation: Low signal loss is critical; typical attenuation is ≤0.35 dB/km at 1310 nm and ≤0.25 dB/km at 1550 nm, allowing high-speed data transfer across the full 3 km length .
- Diameter and Flexibility: Compact outer diameters (e.g., 0.27 mm) improve flexibility while maintaining durability, making deployment easier in field conditions .
- Load and Bend Radius: Designed to withstand installation and operational stresses, with minimum bend radii around 30 mm and tensile strength suitable for smooth unwinding and handling .
Applications
- Drone Telemetry and FPV Systems: Provides reliable, uninterrupted video and control signal transmission for UAVs, supporting dual-path video output and wireless signal pairing .
- Telecommunications: Suitable for indoor and outdoor telecom networks, offering CE-certified single-mode fiber capable of transmission distances up to 20 km .
- Industrial and Defense Communication: Used in modular fiber systems for precise control and stable image transmission in complex environments .
Deployment Considerations
- Optical-Electric Conversion: Often paired with optical-electric modules to convert signals for controllers or ground stations, ensuring precise control over the fiber length .
- Lightweight Drum Design: Many 3 km spools come on lightweight drums for easy transport and deployment in field operations .
- Environmental Resistance: High tensile strength, abrasion resistance, and flexibility allow operation in outdoor and industrial conditions .
Summary
A 3 km optical cable is a professional-grade solution for long-distance, high-speed data transmission. Its single-mode fiber, low attenuation, and flexible design make it ideal for UAV telemetry, FPV systems, telecom networks, and industrial communication setups. When selecting a cable, consider fiber type, attenuation, environmental durability, and compatibility with optical-electric conversion modules to ensure optimal performance .
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