Simrad TV80 - NMEA HDT Datagram; NMEA RMC Datagram

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406388/B
NMEAHDTdatagram
TheNMEAHDTdatagramprovidesthetruevesselheading.Theinformationisnormally
providedbyacoursegyro.
Format
$--HDT,x.x,T*hh<CR><LF>
Description
1$—:Talkeridentier
2HDT:Datagramidentier
3x.x,T:Heading(DegreesTrue)
4*hh:Checksum
NMEARMCdatagram
TheNMEARMCdatagramtransfersthetime,date,position,courseandspeeddatafroma
globalnavigationsatellitesystem(GNSS)receiver.
Format
$--RMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,z.z,ddmmyy,r.r,a,a*hh
Description
1$—:Talkeridentier
2RMC:Datagramidentier
3hhmmss.ss:CoordinatedUniversalTime(UTC)ofthecurrentposition
4A:Status
A=Thedataarevalid.
V=Thedataarenotvalid.
5llll.ll,a:LatitudeNorth/South(Degrees,minutesandhundredths)
N=North
S=South
SimradTV80ReferenceManual