DF-A0085
Dual-Polarised Direction Finding Antenna Array
The DF-A0085 dual-polarised fixed site direction finding antenna that covers a frequency range of 20 MHz to 3.6 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 cross-polarisation rejection, and fair performance for signals arriving from up to 15° above or below the horizon The DF-A0085 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. Band C is polarisation agnostic, allowing concurrent VP, HP and LHCP DF a single characterisation table utilising the array of spiral antennas provided. This DF antenna is designed to be used as a multi-channel phase-sensitive receiver, and correlative algorithm. Characterisation of the antenna can be performed on request. The DF-A0085 provides a weatherproof interface at the top of the antenna onto which a lightning protection system can be mounted.
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Call our Sales team
- +27110345300
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Email our Sales team
- [email protected]
Specifications & Resources for DF-A0085
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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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Electronic Surveillance
- Radio monitoring
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Signals intelligence
- Radio direction finding
- Electronic intelligence
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Electronic Surveillance
- Design Features
- Full-size DF Wideband DF Dual-polarised 5-element interferometer MECHANICAL FEATURES: Robust construction Waterproof Fixed site installation Lightning protection interface RELATED PRODUCTS: DF-A0086 Band switch for use with the DF-A0085
- Frequency range:
- Band A: 20 - 300 MHz; Band B: 300 - 1000 MHz; Band C: 1000 - 3600 MHz
- Gain
- See gain graphs
- VSWR
- See VSWR graphs
- 3 dB Beam width
- 60 ° (typical on all bands)
- Front-to-back ratio (Band C only)
- 20 dB (typical)
- 1 st Side lobe level (Band C only)
- -15 dB (typical)
- Cross polarization ratio: Band A Band B Band C
- 15 dB (typical) 15 dB (typical) 20 dB (typical)
- Nominal input impedance
- 50 Ω
- Max received power
- 2 W
- Polarisation
- Vertical, horizontal, and LHCP (Band C spiral antenna)
- Antenna weight
- < 60 kg
- Assembled height
- 2.672 m
- Assembled diameter (max)
- 3.524 kg
