L3 Technologies AIS Manuale Utente
Marine Systems
Aviation Recorders
Rev. 02 Page 1--16
July 29/03
July 29/03
Automatic Identification System
Table 1--4. Long Range Input Data and Formats
Data
IEC 61162--1 Sentences
Long Range Interrogation
Type of request:
-- Geographic area request
-- AIS transponder request
LRI -- Long Range Interrogation
Long Range Function identification
Requestor MMSI and Name
Request for:
-- Ship’s name, call sign and IMO number (A)
-- Date and time of message composition (B)
-- Position (C)
-- Course over ground (E)
-- Speed over ground (F)
-- Destination and ETA (I)
-- Draught (O)
-- Ship / Cargo (P)
-- Ship’s length, breadth and type (U)
-- Number of persons on board (W)
LRF -- Long Range Function
1.4.6.
Long Range Output Data and Formats
The output data and formats are in the form of four Long Range reply sentences,
LRF, LR1, LR2, and LR3, refer to Table 1--5.
LRF, LR1, LR2, and LR3, refer to Table 1--5.
F
The LRF sentence provides the “Function Reply Status” for the requested
information. Following is a list of “Function Reply Status” characters with
the status:
information. Following is a list of “Function Reply Status” characters with
the status:
2 = Information available and provided in the following LR1, LR2, and LR3
sentences.
3 = Information not available from the AIS system.
4 = Information is available but not provided (i.e. restricted access determined
by ship’s master).
F
The LR1 sentence identifies the destination for the reply and contains the
information items requested by the “A” function identification character in
the LRF sentence.
information items requested by the “A” function identification character in
the LRF sentence.