Mystery Radio Mystery Radio is on 6220 Khz at 0630 Utc with SINPO 45444 S=9+5dB. Strong signal this morning, plays nonstop pop-music. Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to email a link to a friend (Opens in new window) Email Click to print (Opens in new window) Print Related