BendixKing SKYMAP IIIC - Manual (Page 138)

SERIAL DATA OUTPUT SENTENCES
A
P
P
E
N
D
IC
E
S
APPENDIX F SERIAL DATA OUTPUT SENTENCES
SERIAL DATA FORMATS
The Skymap IIIC can output standard aviation RS232 data at 9600 baud or NMEA 0183
format RMC, GGA and RMB sentences at 4800 baud. The data output type is setup on
Screen 35 Data Input/Output Setup and Test Screen.
NMEA 0183 Data Format
The serial format is 4800 baud, 8 data bits, 1 stop bit, no parity. Each sentence is followed
by a checksum (*hh), carriage return (CR) and a line feed (LF). All three sentences are
sent every two seconds.
NMEA – RMC Sentence
$GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>*hh<CR><LF>
<1> UTC time of position fix, hhmmss format.
<2> Status, A= Valid position, V=warning
<3> Latitude,ddmm.mmm format.
<4> Latitude hemisphere, N or S.
<5> Longitude, dddmm.mmm format.
<6> Longitude hemisphere, E or W.
<7> Speed over ground (000.0-999.9 knots).
<8> Course over ground (000.0-359.9 true).
<9> Date of fix ddmmyy format.
<10> Magnetic variation 000.0-180.0 o .
<11> Variation direction E or W.
Sample sentence.
$GPRMC,132404,A,5111.465,N,00102.845,W,090.0,304.1,020492,004.3,W*7A
NMEA – GGA Sentence.
$GPGGA,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,M,<10>,M,,*hh<CR><LF>
<1> UTC time of position fix, hhmmss.
<2> Latitude, ddmm.mmm format.
<3> Latitude hemisphere, N or S.
<4> Longitude dddmm.mmm format.
<5> Longitude hemisphere, E or W.
<6> GPS quality. 0 = no fix, 1 = fix good, 2 = fix good, differential mode.
<7> Number of sats in use, 00 to 08.
<8> DOP, 01.0 to 99.0.
<9> Antenna height above MSL (metres).
<10> Geoidal offset in metres.
Sample sentence.
$GPGGA,091636,5119.607,N,00122.001,E,1,04,1.8,18.3,M,-47.0,M,,*5D
NMEA – RMB Sentence
$GPRMB,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>,<13>*hhCRLF
1. Position valid (A = valid, V = invalid).
2. XX.XX Cross track error in nautical miles.
Rev 9 Jul 2006 F-1 Skymap/Tracker IIIC Pilot's Guide