Reply to post: Rotating Roof Rack

MPs call for 'immediate' stop to facial recog in UK as report underlines bias risks in 'pre-crime' algos used by coppers

Henry Hallan

Rotating Roof Rack

Another candidate was the magnetic deflection used for the CRT display. A powerful magnetic field needed to change rapidly in the flyback part of the scan producing a long series of harmonics of 15625Hz. The detector vans I saw in the 80s looked like they had some kind of search coil.

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