Radio Black Arrow 3912 Khz Radio Black Arrow is on 3912 Khz at 1950 Utc with SINPO 34333 in United Kingdom. Later at 2125 Utc heard on 3932 Khz. 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