Groundradar’s latest custom long-range radar system, MineVue, has been trialled extensively both above and underground at a series of Indian coal mines in Jharkand and West Bengal states. The system was able to detect abandoned coal workings at impressive depths in environments where complete radar shielding was required.

MineVue was also tested in Papua New Guinea and Australia, where the system was used to detect voids in limestone to depths of over 40 m in cluttered surroundings where traditional low-frequency unshielded radar systems would have been unsuitable. Although limestone is generally an excellent radar environment, some limestones, particularly those with a weathered mantle of clays, can prove problematic for traditional radar equipment. MineVue is a hybrid radar system comprising of a real-time sampling impulse radar as well as a pulse-compression radar which is completely shielded, easily portable, deep penetrating, and continuously tracked by DGPS.

A challenging laterite project in Indonesia where unshielded antennas have been unsuccessful was the site of further MineVue surveying. The results of trials were very encouraging, opening new applications for custom GPR instrumentation.