DF-A0048-01 — High Frequency Direction Finding Antenna

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The DF-A0048-01 is a compact, stationary and transportable HF direction finding antenna designed for DF systems using the Watson- Watt estimation method, as well as 3-channel correlative DF. Included with the antenna is an integrated quad-pod, a carry bag and guy ropes.
The antenna consists of two identical loop antennas arranged in a “crossed-loop” configuration, with a large diameter of 1.6 m to achieve a high sensitivity. The loops make use of Alaris’ innovative and patented cross-polarisation cancelling technology that eliminates disturbances due to cross-polarisation from on-horizon sources. This offers enhanced, reliable accuracy in real-world applications and field trials over traditional crossed-loop designs. In addition to the loops, the DF-A0048-01 provides an omni directional sense signal that can be used for monitoring and resolving the 180-degree angle of arrival ambiguity that is inherent in crossed-loop type DF antennas.
The antenna is made from lightweight materials and designed to be collapsible for quick, easy and repetitive deployment and stowing in a harsh field environment. The product is unique in that it features a fully integrated quadpod for rapid field deployment but can also be bolted to a plinth for semi-permanent installations. When stowed, the antenna collapses into a very small form factor for easy transportation and storage.


  • Stationary and transportable DF antenna
  • High sensitivity
  • Covers the whole HF band
  • Patented cross-polarisation resistant technology
  • Externally noise-limited passive antenna
  • Waterproof
  • Integrated quadpod for quick deployment
  • Low visual profile
  • Compact when stowed


  • HF groundwave DF
  • HF interferometric SSL DF
  • HF monitoring
  • Rapidly deployable DF


  • DF-A0016

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