Embedded GPS Module
VTG - COURSE OVER GROUND AND GROUND SPEED
Velocity is given as course over ground (COG) and speed over ground (SOG).
Format:
GPVTG,<1>,T,<2>,M,<3>,N,<4>,K,<5>*<6><CR><LF>
Example:
$GPVTG,221.0,T,224.3,M,016.0,N,0029.6,K,A*1F<CR><LF>
Field
1
2
3
4
5
Example
221.0
224.3
016.0
0029.6
A
Description
True course over ground, 000.0 ~ 359.9 degrees
Magnetic course over ground, 000.0 ~ 359.9 degrees
Speed over ground, 000.0 ~ 999.9 knots
Speed over ground, 0000.0 ~ 1800.0 kilometers per hour
Mode indicator
‘N’ = Data invalid
‘A’ = Autonomous
‘D’ = Differential
‘E’ = Estimated
Checksum
GPS-41SMDR
GPS-41SMDF
6
1F
ZDA TIME AND DATE
Format:
$GPZDA,<1>,<2>,<3>,<4>,<5>,<6>*<7><CR><LF>
Example:
$GPZDA,104548.04,25,03,2004,,*6C<CR><LF>
Field
1
2
3
4
5
6
7
6C
Example
104548.04
25
03
2004
Description
UTC time in hhmmss.ss format, 000000.00 ~ 235959.99
UTC time: day (01 ... 31)
UTC time: month (01 ... 12)
UTC time: year (4 digit year)
Local zone hour
Not being output by the receiver (NULL)
Local zone minutes
Not being output by the receiver (NULL)
Checksum
Binary Messages
See
Binary Message Protocol User’s Guide, DS-41COM
for detailed descriptions.
RF Solutions Ltd.,
Unit 21, Cliffe Industrial Estate,
South Street, Lewes, E Sussex, BN8 6JL. England
Tel +44 (0)1273 898 000
Fax +44 (0)1273 480 661
Email sales@rfsolutions.co.uk
DS-41SMD-2 June ’06
http://www.rfsolutions.co.uk
Page 11
©2006 RF Solutions Ltd, www.rfsolutions.co.uk
Tel 01273 898000 Fax 01273 480661
RFSOLUTIONS [ RFSOLUTIONS.LTD ]
