IBC 6970 Khz USB-mode IBC is on 6970 Khz USB-mode at 1638 Utc with SINPO 24333 at SDR Twente. Later also at own RX SINPO 24333 at 1748 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