MX beacon K on 7039.3 kHz

Tonight I heard again after a long time the Letter Beacon (MX) "K" on 7039.3 kHz. This beacon is located in he Russian Far East, possibly near Petropavlovsk-Kamchatsky according to the IARU Region 1 Monistoring System and the HF underground wiki. While other beacons of this cluster moved out of the 40 m amateur radio band to 7509 kHz, this one remained on its old frequency.