Keizer Keizerin 1637 Khz Keizer Keizerin is on 1637 Khz at 2103 Utc with SINPO 33322. Was IDed before at SDR Twente SINPO 24333 at 1648 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