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Magellan GPS 315/GPS 320 57
RMB Generic Navigation Information (immediately follows RMC)
1 2 3 4 5 6 7 8 9 10 11 12 13 14
RMB,A,X.XX,a,c--c,c--c,1111.11,a,yyyyy.yy,a,x.x,x.x,x.x,A *hh
1 Data Status (A = valid, V = invalid)
2-3 XTE, naut. miles and direction to steer (L or R) [If XTE
exceeds 9.99 NM, display 9.99 in field 2.]
4 Origin waypoint ID
5 Destination waypoint ID
6-7 Destination Waypoint Latitude (N or S)
8-9 Destination Waypoint Longitude (E or W)
10 Range naut. miles, present fix to destination waypoint
Great Circle. [If range exceeds 999.9 nm, display 999.9.]
11 Bearing, True, Great Circle, Present fix to dest. waypoint
12 Closing velocity to destination, knots
13 Arrival (OR’ed arrival circle and crossing of line which is
perpendicular to the course line and which passes through
the destination waypoint.)
14 CHECKSUM (Mandatory in this sentence.)
RMC Transit Specific (to be followed by RMB)
1 2 3 4 5 6 7 8 9 10 11
RMC,hhmmss.ss,A,1111.11,a,yyyyy.yy,a,x.x,x.x,xxxxxx,x.x,aa*hh
1 Time, UTC of position fix
2 Status (A = valid, V = Navigation receiver warning)
3-4 Latitude at UTC time, N or S
5-6 Longitude at UTC time, E or W
7 Speed over ground, knots
8 Course over ground, degrees
9 Date (DDMMYY)
10 Magnetic variation, degrees (E or W)
11 Mode Indicator
The formats listed are NMEA formats and Magellan receivers may not
output all of the information listed for a particular format.
A complete copy of the NMEA specifications can be obtained from:
NMEA, PO Box 3435 New Bern, NC 28564-3435