Radio Black Arrow 6286 Khz Radio Black Arrow is on 6286 Khz at 1440 Utc with SINPO 24333. Heard before at SDR Twente SINPO 34433 at 1439 Utc: 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