TheCodeBreakers
these to the Atlantic Section of the Navy Commander in Chief's Combat
Intelligence Division. From here they sped to antisubmarine forces.
How fast this net—called "huffduff' from the HF/DF abbreviation of
"high-frequency direction-finding"—could work was shown by the episode
of June 30, 1942. That morning, U-158 went on the air to report to
Donitz that he had nothing to report. Huffduff stations at Bermuda,
Hartland Point, Kingston, and Georgetown heard him. McMahon plotted
his positiori as latitude 33 degrees north, longitude 67 degrees 30
minutes west. This information raced down through channels until it
reached Lieutenant Richard E. Schreder, U.S.N., flying an antisubmarine
patrol out of Bermuda. Ten miles from the spotted location he found U-
158 loafing on the surface, its crew sunbathing. One of Schreder's depth
charges landed on the submarine's superstructure just as it was trying
to dive. It went down all right, but it never came up.
annaabi.ee 
