The DFS-A0250 direction finding antenna system covers a frequency range of 400 MHz to 6000 GHz. The 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 crosspolarization rejection, and fair performance for signals arriving from up to 15° above or below the horizon. This DF antenna is designed to be used either a 5- or 2-channel phase-sensitive receiver, and correlative algorithm. Characterization of the antenna can be performed on request.
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Frequency range | 400 - 6000 MHz |
Polarisation | Vertical |
Nominal input impedance | 50 O |
Antenna type | 5-element DF interferometer |
Channels per band | 5 |
Input VSWR | < 2.5:1 |
Gain | 8 ± 2 dB |
Noise figure | < 10 dB |
OIP3 (typical) | 30 dBm |
Maximum input level | 30 dBm CW |
Power supply | 19 - 36 V DC |
Control interface | EIA-485 (RS-485) |
Switching time | < 50 µS |
Time to receive control byte (RS-485 | 115.2 kbps) |
Total switching time | < 150 µS |