Rikaline GPS-6010 - Manual (Page 15)

GPS-6010 Operating Manual
Rikaline
Rikaline International Corp. 14F, 171, ChenGong Rd., Sanchong City, Taipei 241, Taiwan
Tel: ++886 2 8973 1899 Fax: ++886 2 8973 1896 E-Mail: [email protected] Web: www.rikaline.com.tw
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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-6010 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-6010 may decode the data correctly to generate
accurate messages and save them in battery-back SRAM for later computing.