Radio Marconi 7700 Khz USB-mode Radio Marconi is on 7700 Khz USB-mode at 2036 Utc with SINPO 24333 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