05XON

Background

05XON is the morse network of Russian military station The Siren, preceding voice messages with morse code on 4996 kHz CW. There is no channel marker and no fixed time for morse messages, they occur randomly. The station broadcasts from the same site as The Siren. 05XON also starts their morse code messages with "NNN KKK 05XON 05XON", before, they used to broadcast with The Siren's current callsign.