Radio Boomerang 6300 Khz Radio Boomerang is on 6300 Khz at 0900 Utc with SINPO 54444. Was on 6298 Khz / &297 Khz before. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Related