Shakespeare 393 23' Single Side Band Antenna [393]

23' Shakespeare 393 Single Side Band Marine Antenna for HF Long‑Range Communications

The Shakespeare 393 is a 23‑foot single side‑band (SSB) whip antenna designed for HF marine radio use when paired with a tuner, enabling long‑range voice and weather communication over the 2–30 MHz band on typical recreational and working vessels.

• 23‑foot fiberglass whip construction supports HF long‑range communication on the 2–30 MHz band when used with an appropriate marine tuner.
• Side‑feed termination band simplifies coaxial feed‑line connection and helps maintain a clean, low‑profile base at the mounting point.
• Vertical polarization and omni‑directional radiation pattern provide broad coverage for ship‑to‑ship and ship‑to‑shore contacts without needing constant antenna rotation.
• Up to 1,000 watt input rating suits typical marine SSB installations, supporting reliable operation through a range of transmission conditions.
• Three‑section telescoping design allows firm locking of base, center, and tip sections for predictable tuning and mechanical stability in calm to moderate sea states.
• Chrome‑plated brass ferrules and 1"‑14 threaded base provide a robust attachment interface compatible with standard Shakespeare deck or side‑mount brackets such as Style 409‑R or 410‑R.