PDK81301-RG316 Subsea Watertight Coaxial Cable – RG316 Coax, TPU Jacket, For ROV Video & Underwater RF Link

This PDK81301 watertight coaxial cable is specifically designed for underwater video transmission and RF communication where a flexible, low‑loss coaxial link with absolute watertight protection is required. It comprises a standard RG316 coaxial unit – a proven 50Ω design widely used in ROV camera systems, sonar transducers, and telemetry links – fully encapsulated within a durable TPU (Thermoplastic Polyurethane) outer jacket. The TPU sheath provides superior abrasion, hydrolysis, and oil resistance, while the cable's watertight construction prevents radial water ingress, ensuring reliable operation under hydrostatic pressure. No additional insulation or shielding layers are applied beyond the coaxial unit's inherent design; the TPU jacket serves as the primary protective and sealing layer. This cable is ideal for subsea video inspection, offshore observation, and underwater defense systems where simplicity, flexibility, and long‑term watertight performance are essential.

Key Features – RG316 Coaxial Unit, TPU Jacket

RG316 coaxial unit – flexible 50Ω coax (75Ω option available), suitable for analog video, SDI, RF, and telemetry signals.

TPU outer jacket – polyurethane sheath delivers excellent abrasion, cut, and hydrolysis resistance; remains flexible in cold water and resists oils, UV, and marine fouling.

Watertight integrity – pressure‑resistant construction prevents water ingress, ensuring reliable operation in submerged environments.

Compact and flexible – small diameter and good flexibility facilitate easy routing and deployment in tight spaces.

Ideal For

ROV and AUV camera video links (CVBS, SDI)

Subsea CCTV and observation systems

Sonar and acoustic transducer RF connections

Offshore inspection and telemetry cables

Military underwater surveillance links

Any subsea application requiring a watertight coaxial cable with TPU protection

Conclusion

This PDK81301-RG316 cable offers a straightforward, durable watertight coaxial solution for underwater video and RF transmission. The combination of RG316 coax and a rugged TPU jacket ensures reliable signal transmission and long‑term marine durability.

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