Magellan GPS 315/GPS 320 57RMB Generic Navigation Information (immediately follows RMC)1 2 3 4 5 6 7 8 9 10 11 12 13 14RMB,A,X.XX,a,c--c,c--c,1111.11,a,yyyyy.yy,a,x.x,x.x,x.x,A *hh1 Data Status (A = valid, V = invalid)2-3 XTE, naut. miles and direction to steer (L or R) [If XTEexceeds 9.99 NM, display 9.99 in field 2.]4 Origin waypoint ID5 Destination waypoint ID6-7 Destination Waypoint Latitude (N or S)8-9 Destination Waypoint Longitude (E or W)10 Range naut. miles, present fix to destination waypointGreat Circle. [If range exceeds 999.9 nm, display 999.9.]11 Bearing, True, Great Circle, Present fix to dest. waypoint12 Closing velocity to destination, knots13 Arrival (OR’ed arrival circle and crossing of line which isperpendicular to the course line and which passes throughthe 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 11RMC,hhmmss.ss,A,1111.11,a,yyyyy.yy,a,x.x,x.x,xxxxxx,x.x,aa*hh1 Time, UTC of position fix2 Status (A = valid, V = Navigation receiver warning)3-4 Latitude at UTC time, N or S5-6 Longitude at UTC time, E or W7 Speed over ground, knots8 Course over ground, degrees9 Date (DDMMYY)10 Magnetic variation, degrees (E or W)11 Mode IndicatorThe formats listed are NMEA formats and Magellan receivers may notoutput 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