Shakespeare 5228-4 4' Heavy - Duty Extension Mast

The Shakespeare 5228-4 Galaxy 4' Heavy-Duty Extension Mast is a high-performance component designed to increase the height and effective range of your marine antennas. Part of the elite Galaxy series, this mast is constructed from high-quality white fiberglass with a non-yellowing high-gloss polyurethane finish, ensuring it matches the aesthetic of premium Galaxy antennas while withstanding harsh saltwater environments.

At a nominal length of 4 feet (actual length 44 inches), this 1.5-inch diameter mast is ideal for boosting antennas above on-board obstructions like cabins or radar arches. It features stainless steel upper and lower ferrules with standard 1"-14 threads, making it compatible with most standard marine antenna mounts and accessories.

Key Features & Benefits

• Heavy-Duty Construction: Built with a 1.5" diameter fiberglass radome, offering the strongest construction in the Shakespeare line for demanding offshore applications.

• Range Enhancement: Elevates your antenna to provide a clearer line of sight, significantly improving VHF transmission and reception range.

• Universal Compatibility: Equipped with standard 1"-14 male and female threads, allowing it to work seamlessly with VHF, GPS, and TV antennas.

• Premium Finish: The high-gloss polyurethane coating prevents yellowing and protects the structural integrity of the fiberglass from UV damage.

• Installation Note: For assemblies exceeding 8 feet in total length, an upper support bracket (like the Style 408-R) is required to ensure stability.

Technical Specifications