The Fathom ROV Tether (ROV-Ready) (Twisted Pairs - 4) (50 M 164 ft) is a professional-grade, neutrally buoyant tether designed for robust and durable performance in a variety of ROV and subsea applications. This tether features a pre-installed Binder 77 connector and WetLink Penetrator, ensuring seamless integration with the FXTI, Fathom Spool, BlueROV2, and other watertight enclosures. Engineered with water-blocking fibers to prevent leaks, the tether offers a breaking strength of 3-35 lb and is available in diameters of 4mm and 7.6mm, making it slimmer and more manageable than most comparable ROV tethers.
The tether incorporates one or four unshielded twisted pairs (UTP) of 26AWG wire, arranged similarly to Cat5 networking cables to resist cross-talk. Its slim profile significantly reduces drag, making it ideal for deep, high-current, and long-distance dives. The lightweight design, with a hundred-meter tether weighing just 3 lb (1.4 kg), enhances portability and ease of handling. However, the slim version with only two wires is limited to primary communication for the BlueROV2 and is not suitable for applications requiring additional tether pairs.
Constructed with a core of Kevlar strands for strength and Dacron fibers for space filling, both impregnated with water-blocking compounds, the tether is designed to withstand nicks and rips. The high-visibility yellow polyurethane foam jacket provides abrasion resistance and neutral buoyancy. The cables stiffness is balanced to offer flexibility for ROV maneuverability while preventing tangling. This tether is engineered to provide design flexibility and accommodate a wide range of uses.