Hi Manfred - after the aggression against Ukraine began on February 24. 2022, a lot of channels were described here in RU Mil threads. After the Russians withdrew from the siege of Kiev, their HF radio activity on the phone almost disappeared. Rather, it is not the result of a change of location, but a shift to digital and VHF communication. The Russians worked on old HF USB radio stations, they spoke plain text without scrambling. Ukrainian services eavesdropped on them, civilian warriors jammed them, and there were even allegedly false, disorienting messages.