Alinco EJ-41U Bedienerhandbuch PDF herunterladen (Seite 22)

*$GPVTG: starts GPVTG sentence

l True course direction in degree related to the North.

l T fixed, means True Course

l Magnetic course direction in degree.

l M fixed, means Magnetic course

l Speed in knots=1.852Km/h.

l N fixed, means Knots.

l Ground speed in Km/h

l K fixed, means ground speed unit in Km

l *hh<CR><LF> check-sum and end of message

5-4-5 $GPZDA

One of NMEA-0183 formats. It contains date and time information only. EJ-41U can analyze

and re-structure this format.

The data contains the following information:

l $GPZDA starts GPZDA sentence

l Time/minutes/seconds in UTC.

l Date 01 – 31

l Month: 01-12

l Year in 4 digit. These are also shown in UTC

l Time zone: -13 to 00 to 13

l Time zone: 00 to 59 minutes

l *hh<cr><LF> check-sum and end of message

5-4-6 $GPRMC

One of NMEA-0183 formats. Date , time, latitude, longitude, moving speed and direction can be

detected. EJ-41U can analyze and re-structure this format.

The data contains the following information:

l Starts $GPRMC sentence.

l Hour/minutes/seconds in UTC

l The data status. [A] for valid data, [V] for invalid.

l Latitude in numbers

l N for north, S for South

l Longitude in numbers

l E for East, W for West

l Ground speed in knots.

l Direction in degrees

l Date in dd/mm/yy format.

l The difference of magnetic direction from true north.

l To which direction the magnetic direction differs. E toward east, W toward west.

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Alinco EJ-41U Bedienerhandbuch Seite 22