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AN/ALR-47

Country of Origin: USA

The AN/ALR-47 is the passive radar electronic countermeasures (ECM) system installed in the Canadian CP-140 Aurora under the designation ALR-502.

The ALR-47 operates in the E- to J-bands and is designed to search for and detect signals of short duration such as those that might be used by submarines.

The system uses four planar spiral antennas in each wingtip that are arranged orthogonally to enhance monopulse direction finding. Along with the antennas are twin, highly...

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