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OLB5 
Summary
OLB5 was the callsign of a Czech time signal radio station. The station was located at Poděbrady and transmitted time signals which originated from the OMA (time signal) clock at Liblice.
The station transmitted in the HF band, on 3.17 MHz with 1 kW.[1]
References edit
- ^ Gerd Klawitter (1980). List of Time Signal Stations (9th ed.). pp. 21–22.