OLB5 was the callsign of a Czech

time signal A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day. Church bells or voices announcing hours of prayer gave way to automatically operated chimes on public clocks; however, audi ...

radio station. The station was located at

Poděbrady Poděbrady (; german: Podiebrad) is a spa town in Nymburk District in the Central Bohemian Region of the Czech Republic. It has about 14,000 inhabitants. It lies on the river Elbe. The town centre is well preserved and is protected by law as an u ...

and transmitted time signals which originated from the

OMA (time signal) OMA was the callsign of a Czech time signal station. The station was operated by the Astronomical Institute of Prague and the transmitters were located at RKS Liblice 1. The station transmitted in the LF band on 50 kHz with a power of 7 ...

clock at

Liblice Liblice is a municipality and village in Mělník District in the Central Bohemian Region of the Czech Republic. It has about 500 inhabitants. Geography Liblice is situated southeast of Mělník and northeast of Prague. It lies mostly in the Ji ...

. The station transmitted in the HF band, on 3.17 MHz with 1 kW.

References

Time signal radio stations {{CzechRepublic-media-stub