Technical Manual
Table Of Contents
- 1 Revision History
- 2 SPECIFICATIONS
- 3 DATA TRANSMISSION
- 4 DESCRIPTION OF SENTENCE FORMAT
- 4.1 Input
- 4.1.1 ABM Addressed Binary and safety related Message
- 4.1.2 ACA AIS Regional Channel Assignment Message
- 4.1.3 ACK Acknowledge alarm
- 4.1.4 AIR AIS Interrogation Request
- 4.1.5 AIQ - Query Sentence
- 4.1.6 BBM Broadcast Binary Message
- 4.1.7 DTM Datum reference
- 4.1.8 EPV – Command or report equipment property value
- 4.1.9 GBS GNSS satellite fault detection
- 4.1.10 GGA Global positioning system (GPS) fix data
- 4.1.11 GLL Geographic position latitude/longitude
- 4.1.12 GNS GNSS fix data
- 4.1.13 HBT Heart Beat
- 4.1.14 HDT Heading true
- 4.1.15 LRF Long Range Function
- 4.1.16 LRI Long-Range Interrogation
- 4.1.17 OSD Own ship data
- 4.1.18 RMC Recommended minimum specific GNSS data
- 4.1.19 ROT Rate of turn
- 4.1.20 SPW - Security password sentence
- 4.1.21 SSD Station static data
- 4.1.22 VBW Dual ground/water speed
- 4.1.23 VSD Voyage Static Data
- 4.1.24 VTG Course over ground and ground speed
- 4.1.25 ZDA – Time and date
- 4.2 Output
- 4.2.1 ABK Addressed and binary broadcast acknowledgement
- 4.2.2 ACA See “Input “
- 4.2.3 ALR Set alarm state
- 4.2.4 EPV See “Input “
- 4.2.5 HBT See “Input “
- 4.2.6 LRF See “Input “
- 4.2.7 LR1 Long-range Reply with destination for function request "A"
- 4.2.8 LR2 Long-range Reply for function requests "B, C, E, and F"
- 4.2.9 LR3 Long-range Reply for function requests "I, O, P, U and W"
- 4.2.10 NAK – Negative acknowledgement
- 4.2.11 TRL – AIS transmitter non functioning log
- 4.2.12 TXT Text transmission
- 4.2.13 VDM VHF Data-link Message
- 4.2.14 VDO VHF Data-link Own-vessel message
- 4.2.15 VER – Version
- 4.1 Input
- 5 Abbreviations and Definitions
TR-8000 Technical manual 2-9
2.3 Transmission intervals
The transmission intervals are normally as described in Table 1: Transmission intervals. Given certain
conditions, as in assigned mode, or when other AIS stations are synchronizing to the unit, the
transmission rate might be higher, but the absolute highest rate is once every 2 seconds.
Ship’s dynamic conditions
Nominal reporting interval
Ship at anchor or moored and not moving faster than 3 knots
3 min
Ship at anchor or moored and moving faster than 3 knots
10 s
Ship 0-14 knots
10 s
Ship 0-14 knots and changing course
3.33 s
Ship 14-23 knots
6 s
Ship 14-23 knots and changing course
2 s
Ship 23 knots
2 s
Ship 23 knots and changing course
2 s
Table 1: Transmission intervals.