The GEM-3 Array can be towed or mounted in front of a vehicle. This new Electromagnetic Induction (EMI) array is built on a flat one-inch thick panel and, thus, light in weight and easy for packaging and shipping. The standard GEM-3 has seven receiver channels, provides a 2.4 meter swath, and produces high spatial density at a high survey speed. The system may be used for detecting unexploded ordnance (UXO), finding buried utilities, and mapping shallow geology. With proper packaging, the array can also be used for underwater investigations. it may also be used for detecting and characterizing landmines and IEDs in hostile environments under suitable concepts of operation.

The system provides 2-D data display that shows ground images in real time, including flagging potential targets on the screen. The unit comes with a GPS unit at decimeter accuracy. The system can merge data from other sensors and devices on the same platform using standard serial communication lines such as Ethernet, RS232 and RS485. The GEM-3 Array consists of a large transmitter coil along its perimeter, a bucking transmitter and seven equally-spaced receiver coils along its center line. The array has the following advantages:

• Maximum possible transmitter moment for a given array size;
• Broadband operation, typically 10 frequencies between 90Hz � 96kHz;
• Seven equally-spaced receiver channels operating simultaneously;
• High-speed survey; high data density;
• Easy shipping owing to its flat construction .