RKS Liblice 1 was a facility for commercial long wave radio transmission located in the Czech Republic about 33 km (21 mi) east of Prague near Liblice. It used a T-antenna hung on two 150 m (492 ft) tall insulated towers built of lattice steel. The towers were demolished by explosives on August 11, 2004, as they were no longer needed.
The time-signal broadcasts on VLF ceased in 1995 and the medium-wave broadcast of Czech Radio Programme 2 was transferred to the adjacent site with a super-power transmitter, Liblice II.