Konsberg AIS 200, Installation Manual

Page: 100 / 119

Kongsberg AIS 200 Installation Manual, rev. 2 Appendix B - Digital interface IEC 61162-1
10.4.14 VTG – Course over ground and ground speed
he actual course and speed relative to the ground. T
OTE Positioning system Mode indicator:
A = Autonomous mode
D = Differential mode
E = Estimated (dead reckoning) mode
M = Manual input mode
S = Simulator mode
N = Data not valid
The positioning system Mode indicator field shall not be a null field.
Course over ground, degrees magnetic and Speed over ground km/h are not used by the 'AIS
10.4.15 ZDA – Time and date
UTC, day, month, year and local time zone.
N
NOTE 1 Local time zone is the magnitude of hours plus the magnitude of minutes added,
with the sign of local zone hours, to local time to obtain UTC. Local zone is
generally negative for East longitudes with local exceptions near the International
Date Line.
Example: At Chatham Is. (New Zealand) at 1230 (noon) local time on June 10,
1995:
$GPZDA,234500,09,06,1995,-12,45*6C<CR><LF>
In the Cook Islands at 1500 local time on June 10, 1995:
$GPZDA,013000,11,06,1995,10,30*4A<CR><LF>
All fields except Local zone, are used by the AIS.
90