May suffer from clutter limitations typical of all types of ground-penetrating radar in certain environments. The reflected signals are detected by a second antenna equipped with a high-gain built in preamplifier. The antennas and associated electronics are mounted on a wheeled-cart for ease in traversing large areas of the surface. Frequency used is typically 150 MHz. Radar output processed by a personal computer and a false-color display is used.
Output is recorded on video tape or hard disk with voice comments and cart-position information.
Color print outs of the data are available. Very good distance resolving power. Does not generate RFI or electrical interference. Battery operated when AC power is inconvenient. Low angular resolution typical of dipole antennas.