7.3 Registered information providers shall take into account the need for contingency planning. 7.4 Scheduled transmissions are made at specified as allocated by the IMO International Satellite EGC Coordinating Panel. These schedules are published in national nautical publications and the IMO Master Plan of Shore-Based facilities for the GMDSS, as amended. 7.5 MSI providers shall adhere to their published scheduled broadcast times to facilitate reception of messages. 8 Message formatting and C codes 8.1 EGC messages include instructions to the LES for processing MSI in the form of a special address header that consists of five (or six) C codes as described below. In order for a message to be correctly processed, it shall always consist of data conforming to C codes "1" to "5". Additionally, C code "0" shall be used when required by the service provider. C0 Region code 1 digit (when required) – 0 Atlantic Ocean Region West – – 1 Atlantic Ocean Region East – – 2 Pacific Ocean Region – 3 Indian Ocean Region – 9 all regions served by the addressed LES (Note: availability of C0 = 9 should be – checked with the LES operator or service provider) C1 priority code 1 code – C2 service code 2 digit code – C3 address code 2, 4, 10 or 12 alphanumeric code – C4 repetition code 2 digit code – C5 presentation code 1 or 2 digit code – C Codes C0 C1 C2 C3 C4 C5 Ocean Priority Service code Address code Repetition Presentation Region code code Code code (see 4, (when part E) required) 1 digit 1 digit 2 digit code 2, 4, 10 or 12 alphanumeric code 2 code 1 or 2 digit code code code 00 All ships 2 digit 00 (All ships) – – 0 (general 1 call) – – W Safety 04 Navigational, 12 alphanumeric rectangular area – meteorological or address 1 2 piracy warning or D1D2N(S)D3D4D5E(W)D6D7D8D9D10 – – E Urgency meteorological forecast to a 2 - POR 3 rectangular area 13 Navigational, 4 alphanumeric coastal warning area – 3 IOR – meteorological, address X1X2B1B2 coastal or piracy warning or meteorological
7.3 Registered information providers shall take into account the need for contingency planning. 7.4 Scheduled transmissions are made at specified as allocated by the IMO International Satellite EGC Coordinating Panel. These schedules are published in national nautical publications and the IMO Master Plan of Shore-Based facilities for the GMDSS, as amended. 7.5 MSI providers shall adhere to their published scheduled broadcast times to facilitate reception of messages. 8 Message formatting and C codes 8.1 EGC messages include instructions to the LES for processing MSI in the form of a special address header that consists of five (or six) C codes as described below. In order for a message to be correctly processed, it shall always consist of data conforming to C codes "1" to "5". Additionally, C code "0" shall be used when required by the service provider. C0 Region code – 1 digit (when required) 0 – Atlantic Ocean Region – West 1 – Atlantic Ocean Region – East 2 – Pacific Ocean Region 3 – Indian Ocean Region 9 – all regions served by the addressed LES (Note: availability of C0 = 9 should be checked with the LES operator or service provider) C1 priority code – 1 code C2 service code – 2 digit code C3 address code – 2, 4, 10 or 12 alphanumeric code C4 repetition code – 2 digit code C5 presentation code – 1 or 2 digit code C Codes C0 Ocean Region code (when required) C1 Priority code C2 Service code C3 Address code C4 Repetition code (see 4, part E) C5 Presentation Code 1 digit code 1 digit code 2 digit code 2, 4, 10 or 12 alphanumeric code 2 code 1 or 2 digit code 0 – 1 – 2 - POR 3 – IOR 1 – Safety 2 – Urgency 3 00 – All ships (general call) 2 digit – 00 (All ships) 04 – Navigational, meteorological or piracy warning or meteorological forecast to a rectangular area 12 alphanumeric rectangular area address D1D2N(S)D3D4D5E(W)D6D7D8D9D10 13 – Navigational, meteorological, coastal or piracy warning or meteorological 4 alphanumeric coastal warning area address X1X2B1B2 E W
2017.06.02-Iridium_Global_Satellite_EGC_Manual(Without%20Video)-Draft.docx