DEITY SF1 Directional Shark Fin Antenna

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The Deity SF1 Active Directional (sharkfin) Antenna is a broadband UHF receive antenna designed to improve range and reliability for professional wireless systems. It covers 470–960 MHz with a directional 60° optimal pickup angle and linear polarization to focus reception where you need it.

An integrated amplifier provides –9 dB to +21 dB gain in 1 dB steps (with overload indication), while unpowered operation delivers typical 6 dBi passive gain for flexible deployment. The enclosure is IP54-rated for splash and dust resistance, suitable for location film and theatrical use.

Connection and power are straightforward via a 50 Ω BNC feed; when your receiver or antenna distributor supplies 12–16.8 V DC bias, the SF1 runs in active mode (approx. 12 V/90 mA). A clear gain display with +/– buttons simplifies on-site adjustment, and a mounting base with 3/8"- to-5/8" threading supports common stands. Key RF performance figures include OIP3 39 dBm and max RF input 30 mW, helping maintain signal integrity in complex RF environments.

For best results, aim the antenna toward the coverage area, maintain line-of-sight, keep it ≥1 m from other antennas, and avoid nearby metal. Use the active gain only to compensate coaxial cable loss (see typical attenuation guidance) to prevent receiver overload; the red indicator alerts you to excessive input. Physical details: 376.5 × 328.8 mm, 532 g, operating –10 °C to +55 °C. Ideal for multi-receiver carts and distributed systems on corporate/commercial sets
where clean, coordinated RF is critical.

SF1 is designed to compensate for what your cable is taking away—nothing more, nothing less. Use the attenuation table as a starting point, then trim gain to suit the environment; don’t assume “more” equals “better,” because excess gain boosts interference and ambient RF right along with your signal. The result is a cleaner link, longer useful range, and fewer surprises mid-take.

Download the Full Chart Here

Specifications

• RF Freq Ranges    470 ~ 960 MHz
• Input Impedance    50 Ohm
• Active Gain    -9dB to +21dB (1dB Steps)
• Passive Gain    6dBi
• OIP3    39dBm
• Pickup Pattern    Directional
• Pickup Angle    60° Left/Right Off Center
• Polarization    Linear
• RF Input Power    30mW Max
• Power Requirements    DC 12 ~ 16.8V
• Power Consumption    12V/90mA (Max)
• Waterproof Rating    IP54
• Operating Temperature    -10°C to +55°C
• Storage Temperature    -20°C to + 70°C
• Operating Humidity    5% ~ 95%
• Dimensions (L*W)    376.5 * 328.8 mm
• Weight    532g
• Connector    50 Ohm BNC
• Mount    3/8" and 5/8" Thread

For more information, please visit this products webpage.