Multi-array ground radio imaging system GRT-81

Compact device for three-dimensional GPR surveying with a resolution of 3.5 x 3.5 cm in plan and up to 2 mm in depth, based on a generator with a high dynamic range and digital antenna array.

Combined type antenna array includes 16 elements – 8 receiving and 8 transmitting antennas.


  • Detection of hidden objects behind obstacles
  • Determination of the object shape and the depth
  • Two-dimensional and three-dimensional visualisation of hidden objects
  • High dynamic range antennas array
  • Easy to use for controlling and data interpretation
  • Full covering of scanning width with 3.5cm resolution (no “dead zones” at all)

Technical specifications

  • Frequency range 2-8 GHz
  • Radiating power at transceiver output, at least up to 50 mW
  • Number of antennas in transceiver modules 16
  • Antenna type synthetic aperture array from combined antenna elements
  • Maximum sounding depth up to 1.5 m
  • Continuous sounding on the go 10+ cm/sec
  • Scanning resolution along antenna strip >3.5 cm
  • Sizes of antenna strip modules 75x35x25 cm
  • Weight from 7 kg
  • Power feeding voltage 12 V
  • Power consumption up to 20 W
  • Protection rating IP54
  • Mean time between required services at least 5000 hours
  • Ambient temperature (operation) -15 to 40 °С;
  • Relative humidity (operation) up to 80%

Request quotation

Picking option *
Preferred delivery variant *


Technical documentation GRT-81