Radio Kaiman 1640 Khz Radio Kaiman is on 1640 Khz at 1827 Utc with SINPO 34433 at SDR Twente. 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