CFR > Title 47 > Chapter I > Subchapter A > Part 15 > Subpart F – Ultra-Wideband Operation
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Terms Used In CFR > Title 47 > Chapter I > Subchapter A > Part 15 > Subpart F - Ultra-Wideband Operation
- wall: is a concrete structure, the side of a bridge, the wall of a mine or another physical structure that is dense enough and thick enough to absorb the majority of the signal transmitted by the imaging system. See 47 CFR 15.503