Compact Adcock DF Antenna


The DF-A0254 is a dual band, compact Adcock DF antenna intended for direction-finding from 400 MHz to 6000 MHz. The antenna presents patterns suitable for the WatsonWatt estimation method, as well as 3-channel correlative DF (CDF). The antenna offers an omni-channel output that can also be used for monitoring. The DF-A0254 has a low noise amplifier on each channel with passive bypass capability, an integrated noise source or optional external signal can be used for downstream RF chain calibration and various compass and GPS options.

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Frequency range 400 - 6000 MHz
Frequency bands Band C: 400 - 2000 MHz
Number of channels 3
DF method Watson-Watt or 3-channel CDF
RMS accuracy See graph below
Polarisation Vertical
Omni-output Yes
Nominal input impedance 50 O
RF Amplification Gain 17 ± 2 dB (excl DF-A0254-01)
Control RS 485 serial at 115 kbaud
Switching time < 100 µs using serial commands < 5 µs when using dedicated lines
Navigation Integrated compass Heading accuracy 2° RMS
GPS Antenna Active (L1)
Onboard Storage Model no.
Programming interface None

    Product Applications

    Signals Intelligence
  • Radio Direction Finding
  • C-ESM