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FCC Seeks EHF Comments

Input on using 77–81 GHz radars for in the field requested

Radar operations operate in what’s called EHF or the extremely high frequency band. Radars that work in the 78–81 GHz bandwidth have come to the interest of the FCC and the agency is seeking comments about approving devices using that range.

Currently radio astronomers have a primary allocation across most of the band, according to law firm Fletcher Heald & Hildreth.

From the practical viewpoint, a use of the 78–81 GHz band is for radars at airports to track and locate debris on runways. Such debris can pose hazards to aircraft. The FCC is debating approval of such use and whether that should be licensed or unlicensed.