In the early 2000ís, Spectrem Air developed the ExplorHEM helicopter
time domain system as a complementary tool to Spectrem2000 platform.
It is used in severe terrain, in areas where fixed wings systems cannot
The helicopter consists of a helicopter with a suspended EM bird. The
helicopter houses all processing, recording and navigational instruments. The
bird, which is suspended 40m below the helicopter, houses the power source,
transmitter, receiver and control electronics.
The EM Bird measures just less than 20m in length and weights 350kg.
In 2009, Spectrem Air decides to suspend the operation of the