SF1 – Directional Sharkfin Antenna

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Sharkfin antenna used from wireless microphones

Quick Look

  • Ultra-Wide Spectrum Coverage; 470MHz ~ 1GHz
  • Active RF Gain Circuitry
  • Metal Housing for Electronics
  • 50 Ohm BNC Connector
  • Vented for Outdoor Work
  • Female ARRI 3/8-16 Accessory Mount; Anti-Rotation Mounting Solution

The SF1’s wide frequency range and robust design make it versatile for different wireless systems, including Deity’s THEOS ecosystem and other brands. Its weather-sealed housing ensures reliability in various conditions, and the metal mount brackets provide secure installation.​

Support

Why is it called a sharkfin antenna?
  1. Visual Appearance: The triangular shape of LPDA antennas, often with elements extending outward like the ridges of a fin, looks similar to a shark fin slicing through water.
  2. Directional Nature: Like a shark “honing in” on prey, these antennas are directional, meaning they are designed to focus on specific signals while rejecting interference from other directions.
  3. Industry Adoption: The nickname “sharkfin” became widely used among sound mixers and RF coordinators as a casual, descriptive term, despite the antennas being technically LPDA antennas.
Why would I ever need the SF1 antenna?
  1. LPDA antennas used in wireless microphone systems are designed to provide gain and improved reception in a specific direction.
  2. They often have a narrow beamwidth, helping sound professionals maximize reception range and minimize RF interference.
  3. These antennas are commonly used in live productions, film sets, and broadcast applications, where reliable wireless microphone performance is crucial.
  4. To look cool