ANT-406B Blade Antenna

Roanwell Emergency Beacon

ANT406B
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ANT-406B Blade Antenna

The ANT-406B is a blade-style external antenna designed for high-speed aircraft applications and compatible emergency locator transmitter systems. This passive omni-directional antenna supports reliable ELT signal transmission across the three primary emergency frequencies—121.5 MHz, 243 MHz, and 406 MHz—making it well suited for aviation installations requiring dependable beacon communication at higher airspeeds.

 

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Why Choose ANT-406B?

Engineered for durability and aerodynamic performance, the ANT-406B provides consistent omni-directional signal radiation while maintaining stable electrical characteristics for ELT operation. Its blade antenna design supports reliable transmission performance in high-speed flight environments, helping ensure emergency locator transmitters can broadcast distress signals effectively when required.

Serial number: ANT-406B

Physical features:

  • Blade-style aircraft antenna design
  • External aircraft-mounted configuration
  • Omni-directional radiation pattern
  • Lightweight construction suitable for aviation installation

Special features:

  • Designed for high-speed aircraft applications
  • Passive antenna design requiring no external power
  • Supports multi-frequency ELT emergency transmissions
  • Aerodynamic blade profile for aircraft exterior mounting

Specifications:

  • Operating Frequencies: 121.5 MHz, 243 MHz, 406 MHz
  • Impedance: 50 Ω nominal
  • Radiation Pattern: Omni-directional
  • Polarization: Vertical
  • Connector: BNC coaxial connector
  • RF Power Capacity: 10 W CW
  • VSWR: ~2.0:1 at 121.5 / 243 MHz, ~1.5:1 at 406 MHz
  • Maximum Airspeed: up to ~600 kts at 25,000 ft

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