Marine GPS
GPS-6051 Operating Manual
Rikaline
Rikaline
International Corp.
14F
, 171, ChengGong Rd., Sanchong City, Taipei 241, Taiwan, R. O.C
Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: [email protected] web: www.rikaline.com.tw
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$GPVTG,309.62,T, ,M,0.13,N,0.2,K*6E
Table A-10 VTG Data Format
Name Example
Units
Description
Message ID
$GPVTG
VTG protocol header
Course 309.62
Degrees
Measured
heading
Reference T
True
Course
Degrees
Measured
heading
Reference M
Magnetic
(1)
Speed 0.13
Knots
Measured horizontal speed
Units N
Knots
Speed
0.2
Km/hr
Measured horizontal speed
Units
K
Kilometers per hour
Checksum *6E
<CR> <LF>
End of message termination
(1) SiRF Technology Inc. does not support magnetic declination. All “course over ground” data are
geodetic WGS84 directions.
A.2 RTCM Received Data
The default communication parameters for DGPS Input are 9600 baud, 8 data bits, stop bit, and no parity.
Position accuracy of less than 5 meters can be achieved with the GPS-6051 by using Differential GPS (DGPS)
real-time pseudo-range correction data in RTCM SC-104 format, with message types 1, 5, or 9. As using
DGPS receiver with different communication parameters, GPS-6051 may decode the data correctly to generate
accurate messages and save them in battery-back SRAM for later computing.
