TerraTEM

• Price: Price on application

The TerraTEM (16bit) is the predecessor to the current Monex Geoscope TerraTEM24. 

Our TerraTEM has an accelerated 15Amp internal transmitter and the continuous acquisition option. It must be used with an external GPS. In contrast to the AgTEM electronics it only accepts 24V loop power so that a bank of very high power resistors must be used to control current. It works only down to 25 Hz so stacking takes longer than it need to for a towed TEM system. It samples at 2uS leading to more oscillations in undamped early time data than in the TerraTEM24 or AgTEM electronics – this can be either advantageous, inconsequential, or deleterious depending on how filtering and post processing is conducted.

We have completed 15 years of towed TEM survey with this system – in this time repairs were limited to computer battery replacement, reseating one internal connector and replacing a fuse holder.

Our system now has extra ventilation (fans and vents) to allow for continuous use in hot weather. The fans can add some electrical noise and introduce extra dust under some circumstances so are only used in hottest weather. Dust removal then is via vacuum cleaner.

See the Monex Geoscope website for specifications.