Seachoice Coax Cable & Extensions

Seachoice Marine Coax Cable & Extensions

When your VHF radio is your lifeline on the water, the quality of the cable running between your radio and antenna matters more than most boaters realize. Seachoice — a marine accessories brand established in 1988 and trusted by anglers, cruisers, and watersports enthusiasts worldwide — brings that same commitment to reliability to its line of coax cables and extensions. Whether you're extending an existing antenna run or replacing worn cabling, Seachoice offers purpose-built solutions designed for the demands of the marine environment.

Two Distinct Product Lines for Every Installation

Seachoice's coax cable offerings fall into two clearly defined categories, each targeting a different type of antenna connection:

• Coaxial Antenna Cable Assemblies (RG58U): These are white RG58U coaxial cables pre-fitted with PL-259 connectors on both ends, available in multiple lengths — 5', 10', and 20' — to suit a wide range of antenna-to-radio runs. The dual PL-259 terminations make installation straightforward, with no need for field crimping or additional hardware.
• Coax Cable with FME (ProConnect / L-195): Designed specifically for VHF antennas equipped with Seachoice's ProConnect FME connector system, these extensions use marine-grade, highly durable L-195 cable. The ProConnect design features a factory-installed FME connector paired with a PL-259 adapter, eliminating the need for large mounting holes or crimping connectors on-site — a genuine time-saver during installation.

Built for the Marine Environment

Unlike generic coax cable, Seachoice's marine-grade offerings are engineered with the corrosive, high-humidity environment of a boat in mind. The L-195 cable type used in the FME line is rated for marine use and built for long-term durability against salt air, UV exposure, and vibration. The RG58U assemblies run at 50 Ohms, the standard impedance for marine VHF applications, ensuring optimal signal transfer with minimal loss between the radio and antenna.

The chrome-plated brass connectors in the broader Seachoice VHF connector ecosystem — including PL-259 plugs, UG-175 reducers for RG-58 cable, and PL-258 double female couplers — complement the cable assemblies and make it easy to extend, adapt, or reconfigure your antenna setup without sourcing mismatched hardware from multiple brands.

Why Seachoice for Coax Cable?

Seachoice has built its reputation on delivering marine-grade quality at a practical price point, backed by a no-hassle warranty on all products. For coax cable and extensions specifically, this means boaters get factory-terminated connections — tested and consistent — rather than relying on field-installed fittings that can introduce signal loss or corrosion points over time. The availability of multiple cable lengths means you can match the run to your vessel's specific layout without excess cable creating clutter in the bilge or cabin.

Explore the full range of Seachoice marine products or browse the complete selection of coax cables and extensions to find the right fit for your VHF antenna installation.