DF-A0239
High-Speed DF Antenna Commutating Switch
The DF-A0239 is a high-speed 6- to 3-channel commutating switch intended for switched elements direction finding applications. The switch works in combination with a band switch* and can accommodate up to 4 bands, each with 6 antenna elements, and routes any 3 elements of a selected band of 6 elements to any of the 3 outputs. The switch is designed to be mounted internally within the weatherproof cavity of the DF-A0029, DF-A0037 and DF-A0095 direction finding antennas, as well as the DF-A0057 outdoor enclosures designed for use with the DF-A0001, DF-A0007, DF-A0038, DF-A0062 and DF-A0136. The switch accepts a very wide input voltage range and is controlled via hardwired logic lines or an EIA-485 (RS-485) interface. The commutation table can be programmed via the RS-485 interface. Commutation is triggered via an external strobe line. All switching is solid state for rapid commutation and unlimited switching cycles.
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Specifications & Resources for DF-A0239
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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
- Electronic Surveillance
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Signals intelligence
- Radio direction finding
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Spectrum management
- Design Features
- 6- to 3-channel commutating switch. High-speed solid state switching.
- Frequency range
- 1 - 6000 MHz
- Input VSWR
- < 2.5:1
- Maximum input level
- 30 dBm CW, 45 dBm at 1% duty factor in 1µs pulse
- Input connectors
- SMA female
- Output connectors
- SMA female
- Power supply
- 19 - 36 V DC, 1 A
- Control interface
- EIA-485 (RS-485), hardwired lines
- Commutation time
- < 10 µS
- Dimensions
- 317 mm x 170 mm x 40 mm
- Total mass
- < 1.5 kg
- External material
- Aluminium
- Temperature range
- -4ºC to +70ºC
- Water ingress rating
- IP54
