Zender Johan 1620 Khz Zender Johan is on 1620 Khz at 0914 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