RADIO REPORTING (CALLING-IN) POINTS Vessels sailing along Uruguayan and Argentinian waters are required to participate in the Traffic Control Centres and Maritime Information System, Ro de la Plata Traffic Control System, and Martn Garca Channels Communications System (SICOSEMAGA). For further details, see Published Maritime Information (IMP Uruguay, Uruguayan Coast Guard), Publication H-221 (Argentine Hydrographic Service) and Regulations on Uses and Navigation of Martn Garca Channels (REMAGA)

MARTN GARCA CHANNELS
S1  Km 39-93 Buenos Aires Prefectura Radio L2G 81 VHF/14VHF
N2  Km 93-145.5 Control Carmelo Prefectura Radio CWC22 81 VHF/11VHF
