http://geotechru.com/oko-3-gpr-with-control-processing-unit-8/

Antenna with central frequency of 1700 MHz, opportunity to survey at a distance up to 0,02 meter above surface, opportunity of near-surface layer detailed survey, depth of sounding up to 1 meter, resolution 0,03 meter

Screened antenna
Narrowed direction diagram
Main frequency	1700 МHz
Scanning depth up to	1m
Resolution capability	0,03 m
Dimensions	220x172x120mm
Weight	0,9 kg
Power consumption	3 Watt
Designedaccording to the scheme without optical coupling
Possible detailed survey of presurface layers
Operates with the external sensor of motion