00134991 3965-645 UNCLASSIFIED 2430695 12-01-1942

NAVY/DEPARTMENT OF NAVY

180.9031 3723 B1979 2277 2334 C8 2448157 09-22-1990 CONTAINS SUMMARY OF U-BOAT RADIO PROCEDURE INCLUDING INFORMATION ON U-BOAT, AIRCRAFT AND SUPPLY SHIP RADIO COOPERATION. IT WAS DESIGNED PRIMARILY FOR USE AT SEA BY ALLIED SHIPS AS READY REFERENCE ON GERMAN U-BOAT COMMUNICATIONS. NONE U-BOAT H/F W/T SIGNALLING AND W/T PROCEDURE FOR U-BOAT AND AIRCRAFT COOPERATION