Marines with Combat Logistics Battalion 5, Combat Logistics Regiment 1, 1st Marine Logistics Group, operate high frequency antennas during a communications exercise aboard Camp Pendleton, Calif., July 25, 2013. They attempted to send messages to receivers as far as Camp Lejeune, N.C, a distance of approximately 3,000 miles, using an 80-foot-long antenna powered by 150 watts. - Marines with Combat Logistics Battalion 5, Combat Logistics Regiment 1, 1st Marine Logistics Group, operate high frequency antennas during a communications exercise aboard Camp Pendleton, Calif., July 25, 2013. They attempted to send messages to receivers as far as Camp Lejeune, N.C, a distance of approximately 3,000 miles, using an 80-foot-long antenna powered by 150 watts.