SAN DIEGO -- Petty Officer 1st Class Nicholas Muscolo, an electronics technician stationed at Electronics Support Detachment San Diego, checks to make sure Petty Officer 3rd Class Ryan Boley, from ESD San Pedro, is rigged correctly before descending the rope at Coast Guard Sector San Diego, Thursday, July 30, 2009. ESD San Diego conducted tower climbing and rescue training with Coast Guard Reserve members from ESD Alameda and ESD 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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