U Boat Radio 66 7300 Khz U Boat Radio 66 is on 7300 Khz at 1621 Utc with SINPO 24322 in the Netherlands. Also at own RX at 1652 Utc with SINPO 14322. 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