UNID 3900 Khz Someone plays pop-music on 3900 Khz at 2210 Utc with SINPO 33433. 2215 Utc sign off. 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