Published on:2026-05-24 Click:21
RG59 + Cat6 positive buoyant cable for ROV. Foamed PUR floating cable combining RG59 coaxial video and Cat6 Gigabit Ethernet in a single positively buoyant ROV tether.
The RG59 + Cat6 positive buoyant ROV cable combines a 75-Ohm RG59 coaxial core (for analog CVBS or AHD 1080p video) with Cat6 shielded twisted pairs (for Gigabit Ethernet and control) in a single positively buoyant foamed PUR jacket. This hybrid design supports ROV systems using both analog video cameras (via RG59) and IP-based control or additional IP cameras (via Cat6) simultaneously in one floating tether. The foamed polyurethane (PUR) jacket uses a micro-cellular expanded jacket compound with a bulk density lower than seawater (~1.025 g/cm³), giving the cable near-zero or positive net buoyancy. This eliminates tether sag and reduces drag force on the ROV, improving vehicle manoeuvrability and reducing tether management workload during subsea operations.
| Parameter | Specification |
|---|---|
| Coaxial | RG59 (75 Ohm, video) |
| Ethernet | Cat6 SFTP twisted pairs (count per spec) |
| Jacket | Foamed micro-cellular PUR |
| Buoyancy | Positive (floating at surface) |
| Video Bandwidth | >1 GHz (RG59) |
| Ethernet | 250 MHz Cat6 / 1000BASE-T Gigabit |
| Colour | Yellow / orange |
| Custom | Cat6 pair count, RG59 count, buoyancy, length |
Request datasheet, custom length, or OEM pricing: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.
The jacket is manufactured from a micro-cellular expanded (foamed) polyurethane compound. During extrusion, a controlled foaming agent creates millions of tiny closed-cell air pockets within the jacket wall. These air cells reduce the bulk density of the jacket below that of seawater (~1.025 g/cm³), producing positive or neutral net buoyancy. The jacket retains all the abrasion resistance, oil resistance, and flexibility of standard PUR while achieving the buoyancy needed for ROV tether applications.
Some ROV systems use an analog camera for a dedicated high-frame-rate pilot view (RG59 coaxial, 0-latency) and a separate IP camera for high-resolution inspection recording (Cat6 Ethernet). Combining both in one tether simplifies deployment, eliminating the tangle risk of two separate cables. RG59 and Cat6 pairs are shielded from each other within the composite cable to prevent the coaxial video carrier from interfering with the Cat6 signal pairs.
