This paper is devoted to investigations of heterogeneities in the geological medium with GPR. The main principles of GPR survey specifications of GPR VIY3-300 (300 MHz antenna) also mentioned in that paper. Results of investigations are represented by radarograms with matches of observed objects on four sites of investigations: 1. Experimental polygon. 2. Granite quarry. 3. Outcrops of granite and their coverage by sedimentary rocks. 4. Evaluation of the depth to the borders between layers of soil under the foundation of the building. According to the results, it is possible to detect fissures, metal and plastic pipes, border between layers with different permittivity with GPR VIY3-300 (300 MHz antenna).

Full Text

1. Chernov, A., Goliaka, R., 2015. Investigation of upper part of geological medium with GPR VIY3-300. Proceedings of the international scientific conference Fundamental meaning of geological education and science. Ivan Franko National University of Lviv, 7-8 October, Lviv, Ukraine, pp. 227-230. (In Ukrainian).
2. Chernov A., Loshakov O., 2016 Influence of GPR measure step and depth of investigation on quality of GPR profiles. Proceedings of international conference Geoinformatics 2016, 10-13 May 2016, Kyiv, Ukraine.
3. David J. Daniels, 2004. Ground-penetrating radar. 2nd ed. The Institution of Electrical Engineers, London, United Kingdom, pp.24-36.
4. Persico, R. 2014. Introduction to ground penetrating radar. John Wiley&Sons, Inc., Hoboken, New Jersey, p. 14.
5. Vladov M. L., Starovoitov A.V., 2004. Introduction to GPR surveying. Moscow State University, pp.26-30. (In Russian).
6. LLC Transient Technologies [Web-page]. Link: http://viy.ua/e/products/VIY3-300_Georadar.htm