The assertion that GPR signal dissipation is uniform with distance is:

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GPR signal attenuation varies along the path and is influenced by the material properties encountered, not a constant rate with distance. As the radar wave travels, it loses energy through geometric spreading and through dielectric (conductive) losses in the medium. The amount of loss depends on how conductive the material is, its moisture content, salinity, and its dielectric properties, which can change with depth and across interfaces. Higher frequencies also attenuate more quickly, so the spectrum of the signal shifts as distance increases. Because these factors change along the path, the dissipation is not uniform with distance. Therefore the statement is false. In practice, attenuation is often modeled as a distance- and material-dependent process, rather than a uniform one.