Argus Radar - SERIAL INTERFACE SPECIFICATIONS
988-10187-004 2.12
GLL – Geographic position – latitude/longitude
Latitude and longitude of vessel position, time of position fix and status.
$--GLL, llll.ll, a, yyyyy.yy, a, hhmmss.ss, A, a *hh<CR><LF>
Mode indicator (see Notes 1 and 2)
Status (see Note 2) A=data valid V=data invalid
UTC of position
Longitude, E/W
Latitude, N/S
NOTE 1
Positioning system mode indicator:
A = Autonomous
D = Differential
E = Estimated (dead reckoning)
M = Manual input
S = Simulator
N = Data not valid
NOTE 2
The mode indicator field supplements the status field (field 6). The status
field should be set to V = invalid for all values of operating mode except for A
= Autonomous and D = Differential. The positioning system mode indicator
and status fields should not be null fields.
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