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Rikaline
Specifications subject to change without prior notice
Rikaline Marketing Corp.
5F-1, 125, Roosevelt Rd., Sec. 5, Taipei, Taiwan 116
Tel: ++886 2 2934 5456 Fax: ++886 2 2934 4373 E-mail: info@rikaline.com.tw Web: www.rikaline.com.tw
14
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) All “course over ground” data are geodetic WGS84 directions.
5.1.7 Time & Date (ZDA)
Table 5-11 contains the values for the following example:
$GPVTG,114523.62,12,04,2001,10,34*6E
Table 5-11 zda Data Format
Name Example Units Description
Message ID $GPZDA ZDA protocol header
Hour, Min, Sec, Sub
Sec
114523.62 Hhmmss.ss
Day 12 Day in UTC, 01to 12
Month 04 Month in UTC, 01 to 12
Year 2001 Year in UTC
Local Zone Hours 10 Local zone hours, +/- 13 hours
Local Zone Minutes 34
Local zone minutes, 0 to +59
Checksum *6E
<CR> <LF> End of message termination
5.2 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-6011 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-6011 may decode the data correctly to generate
accurate messages and save them in battery-back SRAM for later computing.