Radio Altrex 6305 Khz Radio Altrex is on 6305 Khz at 1710 Utc with SINPO 24322 in the Netherlands. Later also at own RX SINPO 24322 at 1812 Utc: 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