The Travelling Wave Dipole Antenna is a highly efficient antenna for short to medium distance communications.

Codan’s TWD Antenna supports operation over the frequency range of 2 to 30 MHz, and is capable of full duty cycle voice and data operation at the rated power levels. Its radiation pattern is generally omni-directional, with a good combination of high and low angle radiation supporting both short and medium distance HF communications.

The large size of the antenna enables a very high level of radiation efficiency thus maximising on-air performance. The broadband design of the antenna eliminates the need for a separate antenna tuner unit, the antenna is connected to the transceiver via a single coaxial cable. Manufactured using materials designed for long service life, the TWD is built to survive in harsh outdoor environments.

Codan Hf Travelling Wave Dipole Pld


  • Electrical
  • Mechanical
  • Frequency range 2-30MHz or 3-30MHz variants available
  • Power rating 125 W or 1000 W PEP
  • Nominal impedance 50 Ω
  • VSWR Typically < 2.5:1
  • RF connector type UHF-type (125 W), N-type (1000 W)
  • Mast heights 2 masts at 10 to 15 m each
  • Mast spacing 40 m
  • Wind rating 200 km/hr, no ice
  • Packed Weight 36 kg (125 W), 46 kg (1000 W)

Values noted are typical. Equipment descriptions and specifications subject to change without notice or obligation.

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