OK0EU is a cluster of five high-stability transmitters with 4 Hz separation, running for multipoint measurement. The callsign is sent 40 Hz up to identify ionospheric echoes. Output power 1 watt to dipole radiating N-S. Transmitters are on 3594.492 at Vackov (JO60EF), 3594.496 Diouha Louka (JO60TP), 3594.500 Panska Ves (JO70GM), 3594.504 Pruhonice (JN79GX), 3594.508 Kasperske Hory (JN69SD)

LA2BCN operates 10-min cycle. Min 0-1