User Manual

Marine Systems
Aviation Recorders
Rev. 06
Mar . 16/11
165M0014-10
Page 1--13
F Dimensions of ship - to nearest meter.
F Location on ship where reference point for position reports is located.
F Type of position fixing device - various options from differential GPS to un-
defined.
F Draught of ship - 1/10 to 25.5m [note “air-draught” is not provided].
F Destination - 20 alphanumeric characters are provided.
1.3.9. AIS Frequencies
The International Telecommunications Union World Radio Conference in 1997 desig-
nated two VHF radio frequencies: 161.975MHz (AIS1, or channel 87B) and
162.025MHz (AIS2, or channel 88B) for AIS. In the US, the first channel is owned by
MariTEL, a public coast station operator, and the second by the federal
government. The USCG signed a Memorandum of Agreement with MariTEL for use
of AIS 1, and has authority from the National Telecommunications and Information
Administration to use both AIS1 and AIS 2 US-wide for AIS operation. The USCG
has asked the Federal Communications Commission to authorize any US vessel to
operate AIS on these two channels under its existing ship station license. The FCC
released a Notice authorizing operation of AIS under a ship’s existing station license.
1.3.10. AIS Input Sentences
This se ction lists the input sentences received by the L-3 ProTec AIS Transponder.
The input sentences are categorized as Pilot, Long Range, and Sensor, which are
listed as follows:
Pilot
ABM, BBM, AIR, VSD, SSD, ACK, ACA, AIQ
Long Range
LRI, LRF
Sensor
RMC, VTG, ROT, HDT, GNS, GLL, GGA, GRS, GSA, GST, GSV, ZDA, GBS, DTM,
VBW