Compact Adcock DF Antenna
DF-A0257
The DF-A0257 is a tri band, compact Adcock DF antenna intended for manpack direction-finding on the move from 20 MHz to 6000 MHz. The DF-A0257 can also be used with the DF-A0245 quad pod antenna for better low-end performance. 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-A0257 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 also includes a navigation and GPS.
Additional information
Product Data sheet
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Specifications
| Frequency range | 20 - 6000 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 | 20 ± 2 dB |
| 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 |
| RF calibration | RF chain calibration using Integrated noise source or external applied signal |
| Power supply | 6 - 18 V DC |
- Radio Direction Finding
- C-ESM
- Counter UAV
