Konsberg AIS 200, Installation Manual

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Kongsberg AIS 200 Installation Manual, rev. 2 Appendix B - Digital interface IEC 61162-1
NOTE 1 ype with the first two
haracters currently defined. The first character indicates the use of GPS
dded to the standard, the mode indicator will be
xtended to three characters; new satellite systems shall always be added to the
g in the Mode Indicator is: GPS, GLONASS, other
The charact
ed in differential mode in position fix.
s:
lution
.
ing
E = Estimated (dead reckoning) Mode.
NOTE 2
satellite systems are used in
differential mode, then the "Age of differential data" and "Differential reference
reference station ID" fields shall be provided in following GNS
messages with talker IDs of GP,GL, etc. These following GNS messages shall
have the latitude, N/S, longitude, E/W, altitude, geoidal separation, mode and
HDOP fields null. This indicates to the listener that the field is supporting a
previous $GNGNS message with the same time tag. The "Number of satellites"
field may be used in these following messages to denote the number of satellites
used from that satellite system.
Mode Indicator. A variable length valid character field t
c
satellites, the second character indicates the use of GLONASS satellites. If
another satellite system is a
e
ri ht, so the order of characters
satellite systems.
ers shall take one of the following values:
N = No fix. Satellite system not used in position fix, or fix not valid.
A = Autonomous.Satellite system used in non-differential mode in position fix.
D = Differential. Satellite system us
P = Precise. Satellite system used in precision mode. Precision mode is defined a
no deliberate degradation (such as Selective Availability), and higher reso
code (P-code) is used to compute position fix.
R = Real Time Kinematic. Satellite system used in RTK mode with fixed integers
F = Float RTK. Satellite system used in real time kinematic mode with float
integers.
M = Manual Input Mode.
S = Simulator Mode.
The Mode indicator shall not be a null field.
Age of differential data and Differential reference station ID
When the talker is GN and more than one of the
station ID" fields shall be null. In this case, the "Age of differential data" and
"Differential
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