SAN DIEGO -- Petty Officer 1st Class Michael Bettencourt, an electronics technician from Electronics Support Unit Alameda, lowers himself during tower climbing training at Coast Guard Sector San Diego, Thursday, July 30, 2009. Electronics Support Detachment San Diego conducted tower climbing and rescue training with Coast Guard Reserve members from Alameda and San Pedro this week. Electronics technicians must maintain a climbing proficiency to reach the communication equipment they service and repair at the tops of towers and ships' masts. (U.S. Coast Guard photo/Petty Officer 3rd Class Henry G. Dunphy)
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