Ground Penetrating Radar (GPR)

Measures the travel time of reflected high-frequency electromagnetic radiation. Effective for detecting abrupt interface changes and voids, for example foundation remains, graves, burial chambers and cellars.

Ground-penetrating radar (GPR) measures the travel time of reflected high-frequency electromagnetic radiation. Effective for detecting abrupt interfaces between materials and fills. Typical example targets include foundation remains, graves, chambers and voids.

Magnitude Surveys can deploy hand-held or motorised, single-channel, multi-channel, multi-frequency or stepped-frequency systems according to the required survey target, depth, resolution and coverage.

Our techniques

Learn more about the techniques that we use.

Aerial Reconnaissance

Incorporating aerial imaging during ‘walkover’ surveys extends the visual range of the surveyor, allowing reconnaissance to be carried out more safely and efficiently, with vastly more informative visual outputs.

Magnetic Susceptibility

Measures the ease with which a material can be magnetised. Effective for detecting features with magnetic contrast from the surrounding soil, including burnt features, pits, ditches, and intra-site activity zones.