WalkTEM is a transient electromagnetic (TEM) instrument and the result of in-house development. In principle WalkTEM is a SkyTEM instrument with a less powerful transmitter, though the standard transmitter has a maximum output current of 20 A , superior to common groundbased TEM systems. Recently new powerful transmitters have (TEMtX60) been developed with a maximum output current of 60 A, especially designed for very deep surveying. The WalkTEM instrument has a built-in GPS, ensuring precise positioning and elevation data for each measurement.

The HGG group has extensive experience with the development of processing and interpretation software for groundbased TEM-systems, where SPIA is the newest  development from our software group.