U Boat 66 Radio 3905 Khz U Boat 66 Radio is on 3905 Khz at 2135 Utc with SINPO 24322 in the Netherlands. Email address is uboatradio(at)gmail.com. 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