NTL 1999-G07 - USAF Communication Towers - May 3, 1999

This Notice to Lessees and Operators (NTL) supersedes our guideline letter on U. S. Air Force communication towers, dated November 21, 1990.

In 1990, the U.S. Air Force, Eglin Air Force Base, notified the Minerals Management Service that seven communication towers had been constructed offshore Mobile, Alabama. These towers are approximately 100 to 150 feet tall and make up the Air Combat Maneuvering Instrumentation System. A clear line of sight between the master tower and each remote tower, as well as freedom from electromagnetic interference, must be maintained to protect their utility.