Berthing data

Parameter	No of bits	Description
Message ID	6	Identifier for Message 6; always 6.
Repeat Indicator	2	Used by the repeater to indicate how many times a message has been repeated. 0 – 3 0 = default 3 = do not repeat anymore
Source ID	30	MMSI number of source station.
Sequence Number	2	0 – 3; refer to ITU-R M.1371-3, Annex 2, § 5.3.1.
Destination ID	30	MMSI number of destination station.
Retransmit Flag	1	Retransmit flag should be set upon retransmission. 0 = no retransmission = default 1 = retransmitted.
Spare	1	Not used, set to zero.
IAI	16	DAC = 001; FI = 20
Message Linkage ID	10	A source specific running number, unique across all binary messages equipped with Message Linkage ID. Used to link additional information to the message by a Text Description message. The Message Linkage ID and the first six digits of the source MMSI uniquely identify the sent message. 1 – 1,023 0 = not available = default.
Berth Length	9	Berth length, in 1 metre steps. 1 – 510 metres 511 = 511 metres or greater 0 = undefined = default
Water Depth at Berth	8	Water depth at berth, in 0.1 metre steps. 0.1 – 25.4 metres 255 = 25.5 or greater 0 = undefined = default
Mooring Position	3	0 = undefined = default 1 = port-side to 2 = starboard-side to 3 = Mediterranean mooring 4 = mooring buoy 5 = anchorage 6 -7 (reserved for future use)
Berth Date and Time		UTC Date and Time
UTC Month	4	1 – 12 0 = not available = default
UTC Day	5	1 – 31 0 = not available = default
UTC Hour	5	0 – 23 24 = not available = default
UTC Minute	6	0 – 59 60 = not available = default
Services availability	1	0 = services types unknown = default; set all “Type of Services Available” indicated below to zero. 1 = services types are known; see “Type of Services Available” below.
Type of Services Available	52	Available services at berth. Each service described with 2 bits, coded as: 0 = service not available or requested = default 1 = service available 2 = no data or unknown 3 = not to be used List of services 1 = agent 2 = bunker/fuel 3 – chandler 4 = stevedore 5 = electrical 6 = potable water 7 = customs house 8 = cartage 9 = crane(s) 10 = lift(s) 11 = medical facilities 12 = navigation repair 13 = provisions 14 = ship repair 15 = surveyor 16 = steam 17 = tugs 18 = waste disposal (solid) 19 = waste disposal (liquid) 20 = waste disposal (hazardous) 21 = reserved ballast exchange 22 = additional services are also available 23 – 24 (reserved for regional use) 25 – 26 (reserved for future use)
Name of Berth	120	20 characters 6 bits ASCII, as defined in ITU-R M. 1371-3, Table 44.
Centre position of Berth, Longitude	25	Longitude in 1/1,000 min, ±180 degrees as per 2’s complement (East = positive, West = negative). 181 = not available = default
Centre position of Berth, Latitude	24	Latitude in 1/1,000 min, ±90 degrees as per 2’s complement (North = positive, South = negative). 91 degrees = not available = default
Spare	0	Not used. Set to zero.
Total	360	Occupies 2 slots