Previous operations include FO0/OK1KT, 3D2KT, ZK1KTT, 5W0VV, KH8/KF4MIW, and KH8DO.
Vrata's radio activities include DXing and Contesting on HF, VHF and UHF (QRV 70 cm to 160m), and a preference in the CW and Digi modes (incl. SSTV).
Vrata is a member of FOC and the Czech Contest Club, CCC, nr. 19.