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3 wire HF antenna 2 Mhz to 30 Mhz

27970

Key Features

  • Frequency Range: 2 MHz to 30 MHz (HF spectrum)

  • Antenna Type: Broadband, multi-wire dipole

  • Configuration: 3 parallel wires, spaced 15–30 cm apart

  • Length: Typically 25 to 45 meters (depends on lowest frequency target)

  • Termination: Balanced load resistor (typically 300 to 800 ohms)

  • Polarization: Horizontal

  • Impedance: 300–600 ohms nominal (requires matching transformer/balun)

  • Power Handling: 500W to 5kW (varies with design and components)

  • Installation: Horizontal or slight inverted-V; height ~10–20 meters above ground

A 3-Wire HF Antenna, covering the frequency range from 2 MHz to 30 MHz, is a type of broadband high-frequency (HF) antenna widely used in military, diplomatic, commercial, and amateur radio applications. Designed for wideband operation without the need for tuners, it is ideal for transmitting and receiving over long distances using skywave (ionospheric) propagation. The 3-wire configuration enhances bandwidth, improves impedance matching, and ensures greater durability under high-power transmission conditions.

The 3-wire HF antenna is typically a broadband, horizontal, center-fed antenna composed of three parallel conductors (wires) spaced equally apart and run in parallel over the desired length. It behaves as a terminated folded dipole and is well-known for its omnidirectional NVIS (Near Vertical Incidence Skywave) characteristics in lower bands and long-range DX capability in higher bands.

Weight 0.1 kg

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