Water levels

Introduction/Additional information: 

This message should be used to inform skippers about actual water levels in their area. It is additional short term information to the water levels distributed via Notices to Skippers. The update rate shall be defined by the competent authority. It is possible to transmit the water levels of more than 4 gauges using multiple messages. Central Commission for Navigation on the Rhine Vessel Tracking and Tracing Standard for Inland Waterways Edition 1.01 – 10.10.2007 48/62

This message should be sent by base stations only, to give water level information to all vessels in a certain area. The message should be sent with binary message 8 at regular intervals.

Registrant: 
EU
Message number: 
8
DAC: 
200
FI: 
24
State: 
in force
Number of slots (max): 
1
Permitted as from: 
10/10/2007
Details: 
 Parameter    Bit    Description  
 Message ID   6  Identifier for Message 8;  always 8
  Repeat Indicator   2  Used by the repeater to indicate how many times a message has been repeated. Default = 0
 3 = do not repeat any more  
 Source ID   30  MMSI number  
 Spare   2  Not used, should be set to zero. Reserved for future use.  
 Application Identifier   16  As described in Table 2,6  
 UN country code   12  UN country code using 2*6-Bit ASCII characters according to ERI specification  
 Gauge ID   11  National unique ID of gauge *1 1-2047, 0 = default = unknown  
 Water level   14  Bit 0: 0 = negative value, 1 = positive value Bits 1-11: 1-8191, in 1/100m, 0 = unknown = default *2  
 Gauge ID   11  National unique ID of gauge *1 1-2047, 0 = default = unknown  
 Water level   14  Bit 0: 0 = negative value, 1 = positive value Bits 1-11: 1-8191, in 1/100m, 0 = unknown = default *2  
 Gauge ID   11  National unique ID of gauge *1 1-2047, 0 = default = unknown  
 Water level   14  Bit 0: 0 = negative value, 1 = positive value Bits 1-11: 1-8191, in 1/100m, 0 = unknown = default *2  
 Gauge ID   11  National unique ID of gauge *1 1-2047, 0 = default = unknown  
 Water level   14  Bit 0: 0 = negative value, 1 = positive value Bits 1-11: 1-8191, in 1/100m, 0 = unknown = default *2  
   168  occupies 1 slot