NAV4 Plus User Guide Issue 2 - ICS Electronics Limited
NAV4 Plus User Guide Issue 2 - ICS Electronics Limited
NAV4 Plus User Guide Issue 2 - ICS Electronics Limited
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<strong>NAV4</strong>plus <strong>User</strong> <strong>Guide</strong><br />
APPENDIX IV : MESSAGE TYPE INDICATORS<br />
NAVTEX broadcasts use following message type letter:<br />
A<br />
Navigational warnings<br />
B<br />
Meteorological warnings<br />
C<br />
Ice reports<br />
D<br />
Search and rescue information, and pirate warnings<br />
E<br />
Meteorological forecasts<br />
F<br />
Pilot service messages<br />
G<br />
DECCA messages<br />
H<br />
LORAN messages<br />
I<br />
OMEGA messages (now discontinued)<br />
J<br />
SATNAV messages (i.e. GPS or GLONASS)<br />
L<br />
Navigational warnings - additional to letter A<br />
V<br />
Notice to Fishermen (U.S. only)<br />
W<br />
Environmental (U.S. only)<br />
X<br />
Special services - allocation by IMO NAVTEX Panel<br />
Y<br />
Special services - allocation by IMO NAVTEX Panel<br />
Z<br />
No message on hand<br />
APPENDIX V : NMEA SENTENCES SUPPORTED<br />
Data Item<br />
Time<br />
Date<br />
Position<br />
Log travelled<br />
Speed through water &<br />
magnetic course<br />
Wind speed & direction<br />
Water depth<br />
Waypoint list<br />
Taken from NMEA Sentences<br />
RMC or GGA or GLL or ZDA<br />
RMC or ZDA<br />
RMC or GGA & VTG or GLL* & VTG<br />
VLW<br />
VWH<br />
MWV or VWR<br />
DBT<br />
WPL<br />
* Note older GPS systems providing NMEA 0183 version 1.5 GLL<br />
may be used if ZDA & VTG are also provided<br />
Note that the if a data item is present in more than one sentence,<br />
then it is taken from the leftmost sentence in the table entry above.<br />
I.e. if Date is available in RMC and ZDA, it will be taken from RMC.<br />
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