RT Journal Article T1 Prueba de Radiolocalización y Radioenlace entre Candanchú y el Túnel Ferroviario Internacional de Canfránc (Huesca) T1 Radiolocation and radioconnection at the international railway tunnel of Canfranc (Huesca) A1 Ayuso, N. A1 Cuchí Oterino, José Antonio A1 Villarroel Salcedo, J. L. AB A new device for underground radiolocation and radio conection was tested betweeen the railway tunnel of Canfranc and the sky ressort of Candanchu. The results provide a radiolocation through 500 m. of limestone and wet shale, and a radioconection through 890 m. of karstified limestones. Giving the relation between the electrical conductivity of the rock and the attenuation of the signal, the results suggest that the device could be used as a geophysical tool PB Sociedad Geológica de España YR 2001 FD 2001 LK http://hdl.handle.net/10272/9504 UL http://hdl.handle.net/10272/9504 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 13 jul 2026