Simrad TV80 - NMEA GLL Datagram; NMEA HDG Datagram

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NMEAGLLdatagram
TheNMEAGLLdatagramtransfersthelatitudeandlongitudeofvesselposition,thetimeof
thepositionxandthecurrentstatusfromaglobalpositioningsystem(GPS).
Format
$--GLL,llll.ll,a,yyyyy.yy,a,hhmmss.ss,A,a*hh<CR><LF>
Description
1$—:Talkeridentier
2GLL:Datagramidentier
3llll.ll,a:LatitudeNorth/South(Degrees,minutesandhundredths)
N=North
S=South
4yyyyy.yy,a:LongitudeEast/West(Degrees,minutesandhundredths)
E=East
W=West
5hhmmss.ss:CoordinatedUniversalTime(UTC)ofthecurrentposition
6A:Status
A=Thedataarevalid.
V=Thedataarenotvalid.
7a:Modeindicator
8*hh:Checksum
NMEAHDGdatagram
TheNMEAHDGdatagramprovidesheadingfromamagneticsensor.Ifthisreadingis
correctedfordeviationitproducesthemagneticheading.Ifitisoffsetbyvariation,it
providesthetrueheading.
Format
$--HDG,x.x,z.z,a,r.r,a*hh<CR><LF>
SimradTV80ReferenceManual