The Belgian telecommunication authority BIPT informs that a military exercise will take place in Elzenborn near the German-Belgian border until 18 June 2022, during which two frequencies in the 6‑metre band will be used: 50.200 MHz and 51.075 MHz. Radio amateurs are therefore asked to keep these frequencies clear or observe them during this time before transmitting there. The amateur radio service has a secondary status in this band, while military radio has a primary status.