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Direction Finding and Monitoring Antenna


The DF-A0062 direction finding antenna covers a frequency range of 20 MHz to 6 GHz. A separate, but fully integrated active monitoring antenna gives high sensitivity omni-directional coverage on the same axis as the DF antenna, without interfering with the DF array.brThe full-size elements on all bands give excellent DF sensitivity. Ultimate angular resolution for strong signals is well under 1° for most of the frequency range. Dipole elements provide good cross-polarisation rejection, and fair performance for signals arriving from up to 15° above or below the horison.brThe integrated monitoring antenna is in two bands, mounted above the Band C & D DF antenna module housed in the radome. Each band of the monitoring array is amplified at the top of the cable, and passively combined to give continuous coverage over the frequency range 20 MHz to 6 GHz, with a single output connector.brThis DF antenna is designed to be usable with either a 5- or 2-channel phase-sensitive receiver and correlative algorithm. Characterisation of the antenna can be performed on request.

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Frequency range 20 - 6000 MHz
Nominal H-plane beamwidth 360°
Nominal E-plane beamwidth 60°
Typical VSWR 0
Polarisation Vertical
Connector type N-type male
Nominal impedance 50 O
Input voltage (via coax) 13 - 24 V DC
Input current < 150 mA
Power consumption (nom < 2.25 W
OP1dB (typ.) > 11 dBm
OIP2 (typ.) > 31 dBm
OIP3 (typ.) > 21 dBm
Sensitivity -20 dBµV/m - -40 dBµV/m
Cross-sectional wind area 0.99 m² (excluding antenna switch) 1.05 m² (including antenna switch)

    Product Applications

    Signals Intelligence
  • Radio Direction Finding
  • C-ESM

    Design Features

  • Designed for tower-mountingbrFull-size DFbrWideband DFbr5-element interferometerbrOptimised for 2-channel receiversbrHigh sensitivity omni antenna integratedbrRapid deploy/stow design with integrated dust caps