masts were equipped with cage wire antennas, which made their electrical insulation against the ground obsolete. After the installation of these cage antennas the basement insulators were bridged, but remained in place. As in other high power transmission facilities in Central and Eastern Europe, the Topolná transmitter used special overhead lines to transmit the RF-power from the transmitter building to the masts. References External links Entry of Mast 1 at Skyscraperpage Entry of Mast 2 at Skyscraperpage Pictures Directional diagram Short description The masts Mast Base RF-Transmission line Towers in the Czech Republic Former radio masts and towers Radio masts and towers in Europe Broadcast transmitters Longwave radio stations