RC01SA/I aka 8RC/SA052 Roméo Charlie International DX Group 13 March 2015 Romeo Charlie RC01SA/I aka 8RC/SA052 El Fronton Isl. Why take a special call-sign ? Because El Fronton isl. is near San Lorenzo isl. and San Lorenzo is military island ! The team must be discreet on the island ! Soon all photos on line !