Rugged Wideband DF Antenna
DF-A0147
The DF-A0147 is a wideband DF antenna suitable for rugged applications. Based on the more portable DFA0095 product, the rugged version features an upgraded mechanical and environmental design for marine use. The antenna has a loop array for good DF performance at low frequencies where the phase size of the array is small and three pentagonal arrays for the higher frequency ranges. A secondary pentagonal array of dipoles are combined by an internal 5-way low-loss combiner to provide a good omni from 1 to 500 MHz and an integrated bi-conical antenna provides a second omni from 500 to 9000 MHz. A decagonal cylindrical cavity inside the antenna, approximately 350 mm wide by 370 mm high, allows switching, amplification and RF processing to be integrated into the antenna, reducing cable loss and weight. The cavity slides open giving access to the RF unit.
Additional information
Product Data sheet
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Specifications
| Frequency range | 1 - 9000 MHz |
| Feed power handling | 0.25 W (receive only) |
| Polarisation | Vertical |
| DF type | Correlative interferometer |
| Frequency bands | A: 1 - 90 MHz *1 B: 30 - 1000 MHz *1 C: 1000 - 3600 MHz D: 3000 - 9000 MHz |
| DF accuracy in azimuth | A: 3° RMS *2 B: 2° RMS *2 C: 2° RMS *2 D: 3° RMS *2 |
| Elevation coverage | -7° to +7° (full accuracy) -15° to +15° (reduced accuracy) |
| Frequency bands | A: 1 - 100 MHz *3 B: 50 - 500 MHz C: 500 - 9000 MHz |
| Monitoring antenna types | A: Connector at top of antenna B: Combined 5 dipoles C: Bi-conical antenna |
| GPS antenna | Active L1 patch antenna |
| Compass bracket | KVH C100 compass (optional) |
| Lightning protection | On all RF and control cables |
| Dimensions (h x d) | 2264 mm x 1100 mm |
| Mass | 85 kg |
| Colour | Grey |
- Radio Direction Finding
- C-ESM
Product Applications
Signals Intelligence
- Full-band correlative interferometer. HF capability. Wideband dedicated omni capability. Rugged construction. GPS Antenna.
