The station was operated by the Astronomical Institute of Prague and the transmitters were located at RKS Liblice 1.
Commercial use of OMA time signal was limited by absence of highly integrated receiver and decoding chip.
OMA was synchronized by Cesium Reference clock run by CSAV Czech Academy of Sciences, Kobylisy, Prague.
The secondary reference employed single transistor crystal oscillator with XF filter.
TV broadcasting and high reliability services were synchronized from the Cesium Reference.