Front Page header

Spectrem Air Proprietary Ltd is a small group of geophysicists and engineers developing and operating airborne time-domain electromagnetic (EM) prospecting systems.

Spectrem’s two current systems are SPECTREM2000, for fixed wing aircraft, and ExplorHEM for helicopters. Both of these EM systems are usually applied to mineral exploration, but can also be used in other fields like environmental investigation. Spectrem Air Proprietary Ltd is a wholly owned subsidiary of Anglo Operations Proprietary Ltd. Management and Logistics are controlled from Johannesburg, South Africa.

The Anglo American Group has invested about $20 million and 15 years of development effort into the Spectrem2000 fixed wing and ExplorHEM helicopter systems, in order to afford the Group a significant competitive advantage over that possible by utilizing the services of commercial survey companies.

Both the Spectrem2000 and ExplorHEM systems are currently the most modern and arguably the best available.

Over the last 15 years, Spectrem has flown in excess of 1 500 000 linear kilometres with a perfect safety record


Spectrem is an active member of the International Airborne Geophysical Association (IAGSA) and was one of the first airborne companies to gained ISO 9001 certification.