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Rikaline
Rikaline Marketing Corp. 5F-1, 125, Roosevelt Road, 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
13
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