This product comes from Alaris Antennas catalogues

Wideband Portable DF Antenna


The DF-A0095 is a wideband portable DF antenna suitable for fixed and mobile mast-mounted applications.brThe antenna has a loop array for good DF performance at low frequencies where the phase size of the array is small and three pentagonal arrays for the higher frequency ranges. A secondary pentagonal array of dipoles are combined by an internal 5-way low-loss combiner to provide a good omni from 1 to 500 MHz and an integrated biconical antenna provides a second omni from 500 to 6000 MHz. Improved sensitivity for low frequency monitoring can be accomplished by the optional MONO-A0059 whip attachment which can be fitted to the top of the antenna.brA decagonal cylindrical cavity inside the antenna, approximately 350 mm wide by 370 mm high, allows switching, amplification and RF processing to be integrated into the antenna, reducing cable loss and weight. The cavity slides open giving access to the RF unit. This can be done by one person, on a mast, without a crane.brSmall carrying handles moulded into the base of the antenna allow it to be moved safely by two people. The antenna has internal struts and gas-lifts, enabling one person to access the RF switch cavity without removing the antenna from the mast. The radome and antenna is lifted up and away from the switch and connector panels.

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Frequency range 1 - 6000 MHz
Feed power handling 0.25 W (receive only)
Polarisation Vertical
DF type Correlative interferometer
Frequency bands A: 1 - 90 MHz *1 B: 30 - 1000 MHz *1 C: 1000 - 3600 MHz D: 3000 - 6000 MHz
DF accuracy in azimuth A: 3° RMS *2 B: 2° RMS *2 C: 2° RMS *2 D: 3° RMS *2
Elevation coverage -7° to +7° (full accuracy) -15° to +15° (reduced accuracy)
Frequency bands A: (optional HF Whip)*3 B: 1 - 500 MHz C: 500 - 6000 MHz
Monitoring antenna types A: Connector at top of antenna B: combined 5 dipoles C: bi-conical antenna
GPS antenna Active patch antenna
Compass bracket KVH C100 compass (optional)
Dimensions (h x d) *4 731 mm x 1100 mm
Mass 33 kg
Colour White

    Product Applications

    Signals Intelligence
  • Radio Direction Finding
  • C-ESM

    Design Features

  • Full-band correlative interferometerbrHF capabilitybrWideband dedicated omni capabilitybrLightweight construction for portability