Radio Super Oldies Shortwave 6307 Khz Radio Super Oldies Shortwave is on 6307 Khz at 1644 Utc with SINPO 24322. Also heard at SDR Twente SINPO 24333 at 1641 Utc: 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