Zender Digital 6253 Khz Zender Digital is on 6253 KHz at 1543 Utc with SINPO 34433. Also heard at SDR Twente SINPO 24333 at 1538 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