about pic1copyGPR systems s.r.o. is official authorized distributor of unique ground penetrating radars (GPR) of the LOZA series. We are focused on pre-sales, sales and after-sales services, and geophysical works with GPR LOZA series around the world. Our company cooperates very closely with our partner and manufacturer of the LOZA series Company VNIISMI Ltd. 
Ground penetrating radar (GPR) LOZA is designed for studying subsurface soil structure at depths from a few meters up to 400m , depending on the geoprobe model, antenna used and medium parameters. The geoprobe operation is based on radiation of ultra wideband electromagnetic pulses penetrating into subsurface medium and registration of the reflected signals born at the medium interfaces or buried objects.
A characteristic feature of this GPR compared with the known analogs is a high energy potential allowing to probe highly conductive soils, such as wet clay, inaccessible for standard GPR.
GPR LOZA is designed for operation in temperature range from -20°C to 50°C with relative humidity up to 95 % at 25°C. At lower temperatures operation is possible under conditions of additional thermal insulation of the registration unit and mandatory switching on the device in a warm room (car) and starting field measurements with already warmed equipment. The device is raindrop Ground penetrating radar is a geophysical equipment that uses pulses to image the subsurface. It uses electromagnetic radiation in the microwave band of the radio spectrum. It is nondestructive method of geophysical surveying. The transmitter sends into the subsurface an electromagnetic signal, and receiver detects reflected signal from subsurface structures. When the wave hits an object, or a boundary with different dielectric constant, the receiver records variations in reflected wave. 
The shape of the changing curve can determine the composition of the subsurface. It is possible to determine if the change in soil attributes is sudden (e.g. rock, air cavity), or finer (dry soil, wet soil).
GPR LOZA have proven its efficiency in a vast number of applications such as:
· Engineering geological survey by designing linear or surface building objects
· 3D mapping and locating archaeological objects 
· Soil inspection in process of building construction (railroad or highway beds, etc.) and exploitation (oil, gas, water, coal, diamonds, etc.)
· Search for natural or artificial voids in the ground (carst cavities, tectonic shifts)
· Determination of loaded or deformed ground thickness, mapping of bedrock/sediments interfaces
· Quality control of bridges, pillars, tunnels, etc.
· Detection of ecologically dangerous waste depots;
· Non-destructive mapping of closed cavities, buried trenches, soil pollution borders, leakages, etc.