This product comes from Alaris Antennas catalogues

8-Element Direction Finding Antenna


The DF-A0274 direction finding antenna covers a frequency range of 80 MHz to 108 MHz. Shipped in a compact storage and transport box, the antenna can be assembled by one person in 15 minutes, without special tools. The antenna provides excellent sensitivity to incoming waves and impulses with angular resolution for strong signals well under 1°. Dipole elements provide good cross-polarisation rejection, and fair performance for signals arriving from up to 15° above or below the horizon. The antenna is designed to be used in passive radar applications using the commercial FM radio band as source emitters. The array diameter is also optimized to allow digital beamforming or nullsteering to be used as part of the solution. The top flange mount provides a mounting interface for other system components or sensors.

Additional information


Frequency range 80 - 108 MHz
Nominal input impedance 50 O
Antenna type 8-element DF interferometer
Polarisation Vertical
Output cables RG 400 cables (qty 8)
Connectors TNC male
Maximum wind speed 160 km/h (without ice)
Antenna weight TBD
Assembled height 4000 mm approx
Assembled diameter (max) 1400 mm approx

    Product Applications

    Signals Intelligence
  • Radio Direction Finding
  • C-ESM

    Design Features

  • 8-element interferometer. Optimized for use in the commercial FM-Band. Array suitable for digital beamforming. Techniques.