DF-A0173
Direction Finding and Monitoring Antenna
The DF-A0173 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.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 cross-polarisation rejection, and fair performance for signals arriving from up to 15° above or below the horizon. The DF-A0173 is capable of HP and VP DF, selectable for Band A and B, with each polarisation requiring characterisation. Two outputs are provided per element in each of bands A and B, one each per polarisation.The 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. This 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.Related products: DF-A0062, DF-A0085 and DF-A0038
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Specifications & Resources for DF-A0173
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Ideal markets
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Safety & Security
- Defence
- Homeland security
- Border control
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Safety & Security
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Ideal applications
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Spectrum management
- Radio direction finding
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Electronic Surveillance
- Radio monitoring
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Signals intelligence
- Radio direction finding
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Spectrum management
- Design Features
- Full-size DF brWideband DF Dual-polarised 5-element interferometer High sensitivity omni antenna integrated MECHANICAL FEATURES: Designed for tower-mounting
- DF frequency range
- Band A: 20 - 300 MHz; Band B: 300 - 1300 MHz; Band C: 1000 - 3000 MHz; Band D: 3000 - 6000 MHz
- Nominal input impedance
- 50 Ω
- Antenna type
- 5-element DF interferometer
- Polarisation
- Band A & B: Vertical & Horizontal; Band C & D: Vertical
- Output cables
- RG 400 cables
- DF connectors
- 30 x SMA male
- Monitoring connector
- 1 x N-type male
- Monitoring frequency range
- 20 - 6000 MHz
- Nominal H-plane beamwidth
- 360°
- Nominal E-plane beamwidth
- 60°
- Assembled height
- 3.6 m
- Assembled diameter (max)
- 3.8 m
- Weight of antenna
- 75 kg
