HF Loop Quadpod for Mobile Antennas


The DF-A0245 is a wideband DF antenna intended for on-the-move direction finding from 1 - 200 MHz The quad-pod’s performance is enhanced with patented hybrid loop-Adcock technology to provide improved sensitivity vs traditional designs of the same form factor. The antenna presents patterns suitable for the Watson Watt estimation method, as well as 3-channel correlative DF The quad pod has a MIL-DTL-38999 connector interface to allow for base mounting of VUHF modules. A cavity inside the antenna houses an integrated band switch that allows control and calibration circuitry to be integrated into the antenna. External and internal RF chain calibration is accommodated, and a compass is also integrated in the antenna

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Frequency range 1 - 200 MHz
Channels per band 3
DF method Watson-Watt or 3-channel correlative
RMS accuracy: Using full vector < 2°
Polarisation Vertical
Control RS 485
Switching time < 10µs when using dedicated lines
Connector MIL-38999 connector on cable
Antenna outputs 3 x co-axial (size 12 contact)
Ext cal input 1 x co-axial (size 12 contact)
Dimensions (h x d) < 700 mm x 2000 mm (incl quadpod)
Mass < 6.5 kg
Temperature range -30 °C to +55 °C (operating) -40 °C to +71 °C (storage)
Ingress protection IP65

    Product Applications

    Signals Intelligence
  • Radio Direction Finding
  • C-ESM