SKU: CW59597
UPC: 719441200633
MPN: 6400-R
The Shakespeare VHF 4' Phase III Antenna (Model 6400-R) is a professional-grade VHF marine band antenna engineered for vessels and platforms requiring reliable long-range communications in demanding maritime environments. Built on Shakespeare's Phase III electronics platform, this 4-foot antenna delivers 3dB gain across the VHF marine band with the mechanical and electrical robustness demanded by commercial and tactical maritime operations.
The antenna features a foam-filled radome construction that provides environmental sealing and structural integrity in salt-air and high-vibration conditions. Silver-plated outer conductor elements minimize RF loss and corrosion resistance, critical factors for sustained VHF performance on offshore platforms, hardtops, and T-top installations. The compact 4-foot profile (approximately 1.2 meters) balances gain performance with practical mounting constraints on vessels where vertical clearance is limited. At 6.5 pounds, the antenna's weight-to-gain ratio suits deck and mast-mounted applications without excessive loading on smaller vessel structures.
This antenna serves coast guard auxiliary operators, commercial fishermen, maritime patrol units, and tactical waterborne teams who depend on clear VHF communications for safety and coordination. The Phase III design is particularly suited to high-noise electromagnetic environments where gain and directional characteristics must maintain signal clarity across distance. Users operating in salt-spray zones benefit from the sealed construction and corrosion-resistant elements, which extend service life and reduce maintenance intervals compared to exposed-element designs.
Shakespeare's reputation in marine electronics stems from decades of OEM supply to commercial shipping and naval vessels. The VHF 4' Phase III represents the company's mid-range offering—delivering certified performance at a price point accessible to serious maritime operators without the cost premium of extended-length or specialized-pattern antennas.
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