U.S. Navy
Extremely Low Frequency (ELF)
Submarine Communications System

• U.S. Navy ELF overview - includes background on the decision to terminate operations in September 2004 (PDF file)
• U.S. Navy fact sheet, Clam Lake, WI transmiter site - includes history of ELF program (PDF file)
• Exterior photos of Republic, MI transmitter buildings and antenna

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• Cold War infrastructure main page

Created on October 19, 2005 at 22:37 by Albert LaFrance