Nmea Hdt Datagram; Nmea Rmc Datagram - Simrad TV80 Reference Manual

Simrad TV80 Reference Manual

NMEA HDT datagram

The NMEA HDT datagram provides the true vessel heading. The information is normally
provided by a course gyro.
Format
$--HDT,x.x,T*hh<CR><LF>
Description
1 : Talker identifier
$—
2 : Datagram identifier
HDT
3 : Heading (Degrees True)
x.x,T
4 : Checksum
*hh

NMEA RMC datagram

The NMEA RMC datagram transfers the time, date, position, course and speed data from a
global navigation satellite system (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 : Talker identifier
$—
2 : Datagram identifier
RMC
3 : Coordinated Universal Time (UTC) of the current position
hhmmss.ss
4 : Status
A
= The data are valid.
A
= The data are not valid.
V
5 : Latitude North/South (Degrees, minutes and hundredths)
llll.ll,a
= North
N
= South
S
280
406388/B