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: 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