DF-A0052 High-Speed DF Antenna Commutating Switch

The DF-A0052 is a high speed, 3-band, 5 to 3 channel commutating switch intended for switched elements direction finding applications.


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Product Code DF-A0052 Categories ,


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The DF-A0052 is a high-speed, 3-band, 5- to 3-channel commutating switch intended for switched elements direction finding antenna applications. The switch accepts three frequency bands, each with 5 antenna elements, and routes any 3 elements of a selected band of 5 elements to any of the 3 outputs. It is also designed to be mounted internally within the weatherproof cavity of the DF-A0029, DF-A0031 and DF-A0037 direction finding antennas.

The switch comprises 5 parallel channels, each equipped with input power limiters, ESD protection, low noise amplifier and band switch. A calibration band can also be selected, providing a balanced 5-way split of an internally generated or externally supplied calibration signal, for chain and receiver calibration. Each channel features a low-noise amplifier, within the calibration chain, to help overcome switch and cable loss. The switch accepts a very wide input voltage range. It is controlled via hardwired logic lines or an EIA-485 (RS-485) interface. All switching is solid state for rapid commutation and unlimited switching cycles.

Active / Passive Active
Dimensions (m) 260 mm long160 mm wide100 mm high
Mass (kg) 4
Maximum VSWR < 2.5
Size (m) 0.32
1. End Frequency (MHz) 3600
1. Start Frequency (MHz) 1

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