Zwarte Panter 6291 Khz Zwarte Panter is on 6291 Khz at 1201 Utc with SINPO 24333 at SDR Twente. Later also heard at own RX SINPO 24333 at 1328 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